Streamgage Attributes, Basin Characteristics, and Seasonal Flow Regimes, Selected Streamgages in Alaska, 1914-2017

This data set contains selected information about U.S. Geological Survey (USGS) streamgages in Alaska that had at least 5 years of daily streamflow record through September 30, 2017. The goals for developing this dataset were to identify USGS streamgages that had at least 5 years of daily streamflow that responded mostly to seasonal meteorological inputs, that had a definable drainage basin above a minimum size from which basin characteristics could be determined, and that provided streamflow data not similar to another streamgage record in the dataset. Streamgages meeting these criteria for at least part of their records constituted the dataset for a study investigating seasonal flow regimes and streamflow drivers for Alaska. For 253 streamgages meeting selection criteria, data include period of record characteristics, basin characteristics, and flow regime cluster analysis results. The basin characteristics are provided in their original U.S. customary units and as values transformed to metric units. For an additional 78 streamgages, data include the special conditions affecting streamflow that disqualified the streamgage from the study, including recurring outburst floods, regulation, urbanization, hydrologic redundancy with another streamgage, drainage basin below minimum size, or an indeterminate drainage basin.

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Basin characteristics were visually checked after computation for consistency with data sources and for values far outside the range of expected values. The basis for determination of seasonal flow regimes is discussed in the cross-referenced publication. The data were peer reviewed prior to dissemination.

Logical_Consistency_Report:

The data have been examined and processed for the presence of omissions. All values in the data tables have been checked extensively for errors and are considered ready for dissemination. All values are considered within bounds of the study constraints.

Completeness_Report:

USGS streamgages in Alaska not meeting study criteria were omitted. Study criteria required streamgages to (1) have at least 5 years of daily streamflow record through water year 2017 that were unaffected by regulation, urbanization, or outburst floods, (2) have a definable drainage area originating at the streamgage that was equal to or larger than 0.4 square miles (1 square kilometer), and (3) not be hydrologically redundant with another streamgage were selected for analysis. Streamgage pairs having nested basins were considered hydrologically redundant when their drainage area ratio (larger divided by smaller) was less than 5. Redundant pairs were reduced to the longer-record streamgage, except for the very large Yukon River, where the smallest drainage area was selected to be more comparable to other streams. A total of 253 streamgages met the selection criteria for at least part of their records. Omitted parts of records included specific years not meeting the study criteria and are addressed in the attached table, flowRegime_gageAttrib_basinChar_AK_Curran_1914_2017.csv. Omitted streamgages are addressed in the attached table, flowRegime_gageAttrib_basinOmit_AK_Curran_1914_2017.csv.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Latitude and Longitude were specified to the nearest second. The position was determined from 1:24,000-scale maps, where available, but other lower scale (i.e. less resolution) maps may be used also.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Wayne Gibson
Publication_Date: 2009
Title: Mean average temperature for Alaska 1971–2000
Geospatial_Data_Presentation_Form: online
Publication_Information:

Publication_Place: Alaska Regional Office GIS Team
Publisher: National Park Service

Other_Citation_Details:

This data set contains spatially gridded estimates of average monthly and annual mean temperature for the climatological period 1971-2000. Distribution of the point measurements to a spatial grid was accomplished using the PRISM model, developed by Christopher Daly of the PRISM Climate Group.

Online_Linkage: https://irma.nps.gov/DataStore/Reference/Profile/2170516

Type_of_Source_Media: online
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19710101
Ending_Date: 20001231

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Gibson 2009a
Source_Contribution:

Geospatial dataset contributing mean average temperature for Alaska 1971–2000.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Wayne Gibson
Publication_Date: 2009
Title: Mean Precipitation for Alaska 1971-2000
Geospatial_Data_Presentation_Form: online
Publication_Information:

Publication_Place: Alaska Regional Office GIS Team
Publisher: National Park Service

Other_Citation_Details:

This data set contains spatially gridded estimates of average monthly and annual precipitation for the climatological period 1971-2000. Distribution of the point measurements to a spatial grid was accomplished using the PRISM model, developed by Christopher Daly of the PRISM Climate Group. Unlike other PRISM datasets, the values used in these PRISM grids for Alaska are (mm * 100) for precipitation and (Celsius * 100) for temperature. Also note that the original grids from Univ. of Oregon were delivered in NAD27 Decimal Degrees and were reprojected by NPS to conform to the standard projection used for Alaska wide datasets; namely, Alaska Albers NAD83. Because the cell size for decimal degree data varies from north to south across an area as large as Alaska when converted to meters (as well as the x/y ratio), a cell size of 771 meters was used (determined at mid point of data extent) for the reprojection. The resampling method used was nearest neighbor for this dataset to attempt to maintain same values for the same location.

Online_Linkage: https://irma.nps.gov/DataStore/Reference/Profile/2170508

Type_of_Source_Media: online
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19710101
Ending_Date: 20001231

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Gibson 2009b
Source_Contribution:

Geospatial dataset contributing mean average precipitation for Alaska 1971–2000.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Janet H. Curran
Originator: Nancy A. Barth
Originator: Andrea G. Veilleux
Originator: Robert T. Ourso
Publication_Date: 2016
Title:

Estimating flood magnitude and frequency at gaged and ungaged sites on streams in Alaska and conterminous basins in Canada, based on data through water year 2012

Geospatial_Data_Presentation_Form: journal article
Series_Information:

Series_Name: Scientific Investigations Report
Issue_Identification: 2016-5024

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Other_Citation_Details:

Prepared in cooperation with the Alaska Department of Transportation and Public Facilities, Alaska Department of Natural Resources, and U.S. Army Corps of Engineers

Online_Linkage: https://doi.org/10.3133/sir20165024

Type_of_Source_Media: online
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1909
Ending_Date: 2012

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Curran et al 2016
Source_Contribution:

Appendix A. Basin characteristics for selected streams in Alaska and conterminous basins in Canada. This source provided basin characteristics for many streamgages. For basins not in Curran et al. (2016), this source describes the methods and data sources used to compute basin characteristics.

Source_Information:

Source_Citation:

Citation_Information:

Originator: PRISM Climate Group
Publication_Date: 2002
Title:

Western Canada average monthly or annual precipitation, 1961–1990

Geospatial_Data_Presentation_Form: online
Publication_Information:

Publication_Place: Corvallis, OR
Publisher: Oregon State University

Other_Citation_Details: Gridded climate data
Online_Linkage: http://prism.oregonstate.edu/projects/canw.php

Type_of_Source_Media: online
Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 1961
Ending_Date: 1990

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: PRISM Climate Group 2002
Source_Contribution:

Average monthly and annual precipitation and minimum, maximum, and mean temperature for the period 1961-1990 for Western Canada.

Source_Information:

Source_Citation:

Citation_Information:

Originator: National Aeronautics and Space Administration
Publication_Date: 2011
Title: ASTER global digital elevation model
Edition: 2
Geospatial_Data_Presentation_Form: online
Publication_Information:

Publication_Place: Sioux Falls, South Dakota
Publisher:

U.S. Geological Survey/Earth Resources Observation and Science (EROS) Center

Other_Citation_Details: 27 p. Version 2 is no longer available, see Version 3.
Online_Linkage: https://earthdata.nasa.gov/learn/articles/new-aster-gdem

Type_of_Source_Media: online
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2011

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: NASA LPDAC 2011
Source_Contribution:

Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Digital Elevation Model 2 (GDEM2) scene-based DEMs covering land surfaces between 83°N and 83°S latitudes.

Source_Information:

Source_Citation:

Citation_Information:

Originator: Randolph Glacier Inventory, Version 2
Publication_Date: 2012
Title:

Randolph Glacier Inventory—A Dataset of Global Glacier Outlines: Version 2

Geospatial_Data_Presentation_Form: online
Publication_Information:

Publication_Place: Colorado, USA
Publisher: Global Land Ice Measurements from Space (GLIMS)

Other_Citation_Details:

The Randolph Glacier Inventory (RGI 2) is a global inventory of glacier outlines. It is supplemental to the Global Land Ice Measurements from Space initiative (GLIMS).

Online_Linkage: https://doi.org/10.7265/N5-RGI-60

Type_of_Source_Media: online
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20120612

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: RGI Consortium 2012
Source_Contribution:

A dataset of global glacier outlines that includes the glaciers of Alaska presented in a shape file format. The dataset includes over 27,000 record entries of Alaskan glaciers. Glacier outlines were used to determine the percent glacier cover basin characteristic.

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey
Publication_Date: 20191126
Title: Water Data for the Nation
Geospatial_Data_Presentation_Form: online
Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Other_Citation_Details:

U.S. Geological Survey, 2019, Daily mean and annual peak streamflow data for 253 streamgages, in USGS water data for the nation: U.S. Geological Survey National Water Information System database, accessed November 26, 2019, at https://doi.org/10.5066/F7P55KJN. [Query parameters for daily mean flow data: Site number = [insert site ID]; Date range = 1900-01-01 to 2017-09-30; Site status = All. Daily mean flow data directly accessible by inserting site ID at http://waterservices.usgs.gov/nwis/dv/?format=rdb&sites=[insert site ID]&startDT=1900-01-01&endDT=2017-09-30&siteStatus=all. Query parameters for peak flow data: siteNumbers = [insert site IDs]; endDate = "2017-09-30". Peak flow data accessible using readNWISpeak in R package dataRetrieval.]

Online_Linkage: https://doi.org/10.5066/F7P55KJN

Type_of_Source_Media: online
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 20191126

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: NWIS 2019
Source_Contribution:

US Geological Survey National Water Information System database from which daily mean and annual peak streamflow data were obtained for use in computing metrics for a cluster analysis.

Process_Step:

Process_Description:

Study basin characteristics consisted of an expansion of Appendix A of Curran et al. (2016), which compiled basin centroid location from the basin boundary; drainage area and mean basin elevation from ASTER GDEM version 2 elevation data (National Aeronautics and Space Administration, 2011); mean annual precipitation and mean minimum January temperature (used here as an indicator of winter temperature) from PRISM temperature and precipitation data for Alaska (Gibson, 2009a, 2009b) and Canada (PRISM Climate Group, 2002); and percent of basin covered by glaciers from Randolph Glacier Inventory version 2.0 glacier coverage data (RGI Consortium, 2012) for most basins. For basins not in Curran et al. (2016), we used ArcGis software (ESRI, 2017) and methods and sources described in that study to compute these basin characteristics. Additionally, we computed mean monthly precipitation and temperature for all study basins using the Curran et al. (2016) methods and PRISM data.

Source_Used_Citation_Abbreviation: Gibson 2009a
Source_Used_Citation_Abbreviation: Gibson 2009b
Source_Used_Citation_Abbreviation: NOAA 2011
Source_Used_Citation_Abbreviation: RGI Consortium 2012
Source_Used_Citation_Abbreviation: PRISM 2002
Source_Used_Citation_Abbreviation: NASA LPDAC 2011
Source_Used_Citation_Abbreviation: RGI Consortium 2012
Source_Used_Citation_Abbreviation: NWIS 2019
Process_Date: 202005
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey, Alaska Science Center
Contact_Person: Janet H. Curran

Contact_Position: Hydrologist
Contact_Address:

Address_Type: mailing address
Address: 4210 University Drive
City: Anchorage
State_or_Province: AK
Postal_Code: 99508
Country: US

Contact_Voice_Telephone: 907-786-7000
Contact_Electronic_Mail_Address: ascweb@usgs.gov

Process_Step:

Process_Description:

Streamgages that had at least 5 years of daily streamflow record through WY 2017 that were unaffected by regulation, urbanization, or outburst floods, had a definable drainage area originating at the streamgage, and were not hydrologically redundant with another streamgage were selected for analysis. Identification of disqualified records or parts of records relied on USGS annual peak-streamflow file data codes, supplemental streamgage information in annual data reports (accessed in NWIS or via https://wdr.water.usgs.gov/), and discussions with USGS staff and others familiar with the sites. Streamgage basins nested within another basin were considered hydrologically redundant when their drainage area ratio (larger divided by smaller) was less than 5. Redundant streamgage pairs were reduced to the longer-record streamgage, except for the very large Yukon River, where the smallest drainage area determined site selection because no other streams in Alaska are comparable in size to the longest-recording Yukon River streamgage. A total of 253 USGS streamgages met the selection criteria for at least part of their records.

Source_Used_Citation_Abbreviation: NWIS 2019
Process_Date: Unknown
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey, Alaska Science Center
Contact_Person: Janet Curran

Contact_Position: Hydrologist
Contact_Address:

Address_Type: mailing and physical
Address: 4210 University Dr.
City: Anchorage
State_or_Province: AK
Postal_Code: 99508

Contact_Voice_Telephone: 907-786-7000
Contact_Electronic_Mail_Address: ascweb@usgs.gov

Process_Step:

Process_Description:

Daily mean streamflow data were edited to omit an entire year if ineligible conditions occurred in any part of the year and were truncated to full water years (missing no more than 1 day) using the standard October-September period, except at 7 sites where data were collected on a water year defined by alternate months. Daily mean streamflow records for February 29 were omitted. Annual peak streamflows, or maximum instantaneous streamflows, were edited to remove annual peaks coded as outburst, regulated, or historic (collected outside the systematic gaging period) in the NWIS peak-flow file. The NWIS Help System page https://help.waterdata.usgs.gov/codes-and-parameters/peak-streamflow-special-conditions-peak.peak_cd defines codes for peak streamflow special defintions. Annual peak streamflows occurring on February 29 were assigned a date of February 28.

Source_Used_Citation_Abbreviation: NWIS 2019
Process_Date: Unknown
Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U.S. Geological Survey, Alaska Science Center
Contact_Person: Janet Curran

Contact_Position: Hydrologist
Contact_Address:

Address_Type: mailing and physical
Address: 4210 University Dr.
City: Anchorage
State_or_Province: AK
Postal_Code: 99508

Contact_Voice_Telephone: 907-786-7000
Contact_Electronic_Mail_Address: ascweb@usgs.gov

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: flowRegime_gageAttrib_basinChar_AK_Curran_1914_2017.csv
Entity_Type_Definition:

Comma Separated Value (CSV) file containing streamgage identification; attributes of the period of record used or omitted; seasonal streamflow regime attributes; and basin characteristics for 253 streamgages.

Entity_Type_Definition_Source: Producer Defined

Attribute:

Attribute_Label: site_no
Attribute_Definition: USGS streamgage site identification number.
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 15009000
Range_Domain_Maximum: 15980000

Attribute:

Attribute_Label: station_nm
Attribute_Definition: Site name.
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain: USGS streamgage site names, e.g., SOULE R NR HYDER AK.

Attribute:

Attribute_Label: PORdv
Attribute_Definition:

Period of record for daily mean streamflow data through water year 2017 that meet selection criteria.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Date ranges, e.g., 1914-1926:1930:1991-2017, separated by colons if more than one date range.

Attribute:

Attribute_Label: recLengDV
Attribute_Definition:

Length of record for daily mean streamflow data through water year 2017 that meet selection criteria.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 5
Range_Domain_Maximum: 99
Attribute_Units_of_Measure: Years

Attribute:

Attribute_Label: omitDV_reg
Attribute_Definition:

Water years for daily mean streamflow data omitted because flows were regulated or diverted for some or all of the year

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Date ranges or multiple date ranges separated by a colon, e.g., 1958-1960:2015-2017.

Attribute:

Attribute_Label: omitDV_outb
Attribute_Definition:

Water years for daily mean streamflow data omitted because flows were affected by outburst flooding for part of the year

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Date ranges or multiple date ranges separated by a colon, e.g., 1958-1960:2015-2017.

Attribute:

Attribute_Label: PORpk
Attribute_Definition:

Period of record used for annual peak-streamflow data, through water year 2017.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Date ranges or multiple date ranges separated by a colon, e.g.,1918-1920:1923-1924:1926-1928:1947-1973.

Attribute:

Attribute_Label: recLengPk
Attribute_Definition:

Length of record used for peak-streamflow data, through water year 2017.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2
Range_Domain_Maximum: 98
Attribute_Units_of_Measure: Years

Attribute:

Attribute_Label: omitPk_hist
Attribute_Definition:

Water years for peak streamflow data omitted because peak flow was an historic peak (NWIS PEAK.peak_cd is 7).

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Date ranges or multiple date ranges separated by a colon, e.g.,1918-1920:1923-1924:1926-1928:1947-1973.

Attribute:

Attribute_Label: omitPk_reg
Attribute_Definition:

Water years for peak streamflow data omitted because peak flow was affected by regulation or diversion (NWIS PEAK.peak_cd is 6, or 5 in some cases).

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Date ranges or multiple date ranges separated by a colon, e.g.,1918-1920:1923-1924:1926-1928:1947-1973.

Attribute:

Attribute_Label: omitPk_outb
Attribute_Definition:

Water years for peak streamflow data omitted because peak flow was affected by outburst flooding (NWIS PEAK.peak_cd is 3).

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Date ranges or multiple date ranges separated by a colon, e.g.,1918-1920:1923-1924:1926-1928:1947-1973.

Attribute:

Attribute_Label: omitPk_maxd
Attribute_Definition:

Water years for peak streamflow data omitted because maximum daily streamflow was substituted for peak flow (NWIS PEAK.peak_cd is 1).

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain:

Date ranges or multiple date ranges separated by a colon, e.g.,1918-1920:1923-1924:1926-1928:1947-1973. There is only one value beside NA, i.e., 1933-1937.

Attribute:

Attribute_Label: omitPk_GT
Attribute_Definition:

Water years for peak streamflow data omitted because peak was greater than stated value but insufficient information was available to confirm the validity of this value as an annual peak (NWIS PEAK.peak_cd is 8).

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain: There is only one value beside NA, i.e., 1951.

Attribute:

Attribute_Label: dendOrd
Attribute_Definition:

Site order on flow regime classification dendrogram for Alaska flow regime investigation, from left to right.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1
Range_Domain_Maximum: 253

Attribute:

Attribute_Label: SFR_class
Attribute_Definition:

Seasonal flow regime (SFR) class membership identification. Classes consisted of clusters at the 3-group level in a hierarchical cluster analysis of seasonal flow regimes for Alaska. Characteristics of seasonal flow regime classes are discussed in the cross-referenced publication.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 3
Enumerated_Domain_Value_Definition:

A summer high-elevation-melt-dominated (High-elevation melt) class

Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: A rainfall-dominated (Rain) spring snowmelt/fall rainfall class
Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 2
Enumerated_Domain_Value_Definition: A snowmelt-dominated (Snow) spring snowmelt/fall rainfall class
Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute:

Attribute_Label: SFR_subclass
Attribute_Definition:

Seasonal flow regime (SFR) subclass membership identification. Subclasses consisted of clusters at the 9-group level in a hierarchical cluster analysis of seasonal flow regimes for Alaska. Characteristics of seasonal flow regime subclasses are discussed in the cross-referenced publication.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 3B
Enumerated_Domain_Value_Definition: High-elevation melt subclass A
Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1B
Enumerated_Domain_Value_Definition: Rain subclass B
Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 2A
Enumerated_Domain_Value_Definition: Snow subclass A
Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 3C
Enumerated_Domain_Value_Definition: High-elevation melt subclass C
Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1A
Enumerated_Domain_Value_Definition: Rain subclass A
Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 2B
Enumerated_Domain_Value_Definition: Snow subclass B
Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 3A
Enumerated_Domain_Value_Definition: High-elevation melt subclass A
Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 2C
Enumerated_Domain_Value_Definition: Snow subclass C
Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 2D
Enumerated_Domain_Value_Definition: Snow subclass D
Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute:

Attribute_Label: is_med_site
Attribute_Definition: Is a median site
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: False
Enumerated_Domain_Value_Definition:

The streamgage mean daily hydrograph is not closest to the group median for one of nine seasonal flow regime subclasses

Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: True
Enumerated_Domain_Value_Definition:

The streamgage mean daily hydrograph is closest to the group median for one of nine seasonal flow regime subclasses

Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute:

Attribute_Label: LAT_GAGE
Attribute_Definition:

Latitude of gage location, referenced to the North American Datum of 1983 (NAD 83).

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 54.9463
Range_Domain_Maximum: 71.2593
Attribute_Units_of_Measure: Decimal Degrees

Attribute:

Attribute_Label: LONG_GAGE
Attribute_Definition:

Longitude of gage location, referenced to the North American Datum of 1983 (NAD 83).

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -165.5107
Range_Domain_Maximum: -130.1832
Attribute_Units_of_Measure: Decimal degrees

Attribute:

Attribute_Label: LAT_CENT
Attribute_Definition:

Latitude of basin centroid, referenced to the North American Datum of 1983 (NAD 83).

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 54.9331
Range_Domain_Maximum: 71.2442
Attribute_Units_of_Measure: Decimal degrees

Attribute:

Attribute_Label: LONG_CENT
Attribute_Definition: Longitude of basin centroid.
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -165.4531
Range_Domain_Maximum: -130.0876
Attribute_Units_of_Measure: Decimal degrees

Attribute:

Attribute_Label: DRNAREA_SQMI
Attribute_Definition: Basin drainage area.
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0.4
Range_Domain_Maximum: 111600.0
Attribute_Units_of_Measure: Square miles

Attribute:

Attribute_Label: PRECPRIS00_IN
Attribute_Definition:

Mean annual basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 8
Range_Domain_Maximum: 280
Attribute_Units_of_Measure: Inches

Attribute:

Attribute_Label: JANMINTMP_F
Attribute_Definition:

Mean minimum January basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -25
Range_Domain_Maximum: 28
Attribute_Units_of_Measure: degrees Fahrenheit

Attribute:

Attribute_Label: ELEV_FT
Attribute_Definition: Mean basin elevation from ASTER GDEM Version 2.
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 40
Range_Domain_Maximum: 5680
Attribute_Units_of_Measure: Feet

Attribute:

Attribute_Label: GLACIER
Attribute_Definition:

Percentage of basin covered by glaciers from Randolph Glacier Inventory Version 2.0.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 72
Attribute_Units_of_Measure: Percent

Attribute:

Attribute_Label: PRJAN00_IN
Attribute_Definition:

Mean January basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 31
Attribute_Units_of_Measure: inches

Attribute:

Attribute_Label: PRFEB00_IN
Attribute_Definition:

Mean February basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 22
Attribute_Units_of_Measure: Inches

Attribute:

Attribute_Label: PRMAR00_IN
Attribute_Definition:

Mean March basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 21
Attribute_Units_of_Measure: Inches

Attribute:

Attribute_Label: PRAPR00_IN
Attribute_Definition:

Mean April basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 18
Attribute_Units_of_Measure: Inches

Attribute:

Attribute_Label: PRMAY00_IN
Attribute_Definition:

Mean May basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 27
Attribute_Units_of_Measure: Inches

Attribute:

Attribute_Label: PRJUN00_IN
Attribute_Definition:

Mean June basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 12
Attribute_Units_of_Measure: Inches

Attribute:

Attribute_Label: PRJUL00_IN
Attribute_Definition:

Mean July basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1
Range_Domain_Maximum: 15
Attribute_Units_of_Measure: Inches

Attribute:

Attribute_Label: PRAUG00_IN
Attribute_Definition:

Mean August basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1
Range_Domain_Maximum: 26
Attribute_Units_of_Measure: Inches

Attribute:

Attribute_Label: PRSEP00_IN
Attribute_Definition:

Mean September basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1
Range_Domain_Maximum: 31
Attribute_Units_of_Measure: Inches

Attribute:

Attribute_Label: PROCT00_IN
Attribute_Definition:

Mean October basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1
Range_Domain_Maximum: 40
Attribute_Units_of_Measure: Inches

Attribute:

Attribute_Label: PRNOV00_IN
Attribute_Definition:

Mean November basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 32
Attribute_Units_of_Measure: Inches

Attribute:

Attribute_Label: PRDEC00_IN
Attribute_Definition:

Mean December basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 30
Attribute_Units_of_Measure: Inches

Attribute:

Attribute_Label: TMPJAN00_F
Attribute_Definition:

Mean January basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -18
Range_Domain_Maximum: 32
Attribute_Units_of_Measure: Degrees Fahrenheit

Attribute:

Attribute_Label: TMPFEB00_F
Attribute_Definition:

Mean February basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -20
Range_Domain_Maximum: 35
Attribute_Units_of_Measure: Degrees Fahrenheit

Attribute:

Attribute_Label: TMPMAR00_F
Attribute_Definition:

Mean March basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -17
Range_Domain_Maximum: 37
Attribute_Units_of_Measure: Degrees Fahrenheit

Attribute:

Attribute_Label: TMPAPR00_F
Attribute_Definition:

Mean April basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -2
Range_Domain_Maximum: 42
Attribute_Units_of_Measure: Degrees Fahrenheit

Attribute:

Attribute_Label: TMPMAY00_F
Attribute_Definition:

Mean May basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 21
Range_Domain_Maximum: 48
Attribute_Units_of_Measure: Degrees Fahrenheit

Attribute:

Attribute_Label: TMPJUN00_F
Attribute_Definition:

Mean June basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 35
Range_Domain_Maximum: 57
Attribute_Units_of_Measure: Degrees Fahrenheit

Attribute:

Attribute_Label: TMPJUL00_F
Attribute_Definition:

Mean July basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 41
Range_Domain_Maximum: 60
Attribute_Units_of_Measure: Degrees Fahrenheit

Attribute:

Attribute_Label: TMPAUG00_F
Attribute_Definition:

Mean August basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 38
Range_Domain_Maximum: 57
Attribute_Units_of_Measure: Degrees Fahrenheit

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: NA
Enumerated_Domain_Value_Definition:

Values omitted because data source showed extremely large values assumed to be erroneous.

Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute:

Attribute_Label: TMPSEP00_F
Attribute_Definition:

Mean September basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 26
Range_Domain_Maximum: 52
Attribute_Units_of_Measure: Degrees Fahrenheit

Attribute:

Attribute_Label: TMPOCT00_F
Attribute_Definition:

Mean October basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 9
Range_Domain_Maximum: 45
Attribute_Units_of_Measure: Degrees Fahrenheit

Attribute:

Attribute_Label: TMPNOV00_F
Attribute_Definition:

Mean November basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -7
Range_Domain_Maximum: 38
Attribute_Units_of_Measure: Degrees Fahrenheit

Attribute:

Attribute_Label: TMPDEC00_F
Attribute_Definition:

Mean December basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -17
Range_Domain_Maximum: 35
Attribute_Units_of_Measure: Degrees Fahrenheit

Attribute:

Attribute_Label: DRNAREA_SQKM
Attribute_Definition: Drainage area.
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.0
Range_Domain_Maximum: 289000.0
Attribute_Units_of_Measure: Square kilometers

Attribute:

Attribute_Label: PRECPRIS00_MM
Attribute_Definition:

Mean annual basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 200
Range_Domain_Maximum: 7110
Attribute_Units_of_Measure: Millimeters

Attribute:

Attribute_Label: JANMINTMP_C
Attribute_Definition:

Mean minimum January basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -31.7
Range_Domain_Maximum: -2.2
Attribute_Units_of_Measure: Degrees Celsius

Attribute:

Attribute_Label: ELEV_M
Attribute_Definition: Mean basin elevation from ASTER GDEM Version 2.
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 12
Range_Domain_Maximum: 1731
Attribute_Units_of_Measure: Meters

Attribute:

Attribute_Label: PRJAN00_MM
Attribute_Definition:

Mean January basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 790
Attribute_Units_of_Measure: Millimeters

Attribute:

Attribute_Label: PRFEB00_MM
Attribute_Definition:

Mean February basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 560
Attribute_Units_of_Measure: Millimeters

Attribute:

Attribute_Label: PRMAR00_MM
Attribute_Definition:

Mean March basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 530
Attribute_Units_of_Measure: Millimeters

Attribute:

Attribute_Label: PRAPR00_MM
Attribute_Definition:

Mean April basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 460
Attribute_Units_of_Measure: Millimeters

Attribute:

Attribute_Label: PRMAY00_MM
Attribute_Definition:

Mean May basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 690
Attribute_Units_of_Measure: Millimeters

Attribute:

Attribute_Label: PRJUN00_MM
Attribute_Definition:

Mean June basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 300
Attribute_Units_of_Measure: Millimeters

Attribute:

Attribute_Label: PRJUL00_MM
Attribute_Definition:

Mean July basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 30
Range_Domain_Maximum: 380
Attribute_Units_of_Measure: Millimeters

Attribute:

Attribute_Label: PRAUG00_MM
Attribute_Definition:

Mean August basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 30
Range_Domain_Maximum: 660
Attribute_Units_of_Measure: Millimeters

Attribute:

Attribute_Label: PRSEP00_MM
Attribute_Definition:

Mean September basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 30
Range_Domain_Maximum: 790
Attribute_Units_of_Measure: Millimeters

Attribute:

Attribute_Label: PROCT00_MM
Attribute_Definition:

Mean October basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 30
Range_Domain_Maximum: 1020
Attribute_Units_of_Measure: Millimeters

Attribute:

Attribute_Label: PRNOV00_MM
Attribute_Definition:

Mean November basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 810
Attribute_Units_of_Measure: Millimeters

Attribute:

Attribute_Label: PRDEC00_MM
Attribute_Definition:

Mean December basin precipitation for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 0
Range_Domain_Maximum: 760
Attribute_Units_of_Measure: Millimeters

Attribute:

Attribute_Label: TMPJAN00_C
Attribute_Definition:

Mean January basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -27.8
Range_Domain_Maximum: 0.0
Attribute_Units_of_Measure: Degrees Celsius

Attribute:

Attribute_Label: TMPFEB00_C
Attribute_Definition:

Mean February basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -28.9
Range_Domain_Maximum: 1.7
Attribute_Units_of_Measure: Degrees Celsius

Attribute:

Attribute_Label: TMPMAR00_C
Attribute_Definition:

Mean March basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -27.2
Range_Domain_Maximum: 2.8
Attribute_Units_of_Measure: Degrees Celsius

Attribute:

Attribute_Label: TMPAPR00_C
Attribute_Definition:

Mean April basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -18.9
Range_Domain_Maximum: 5.6
Attribute_Units_of_Measure: Degrees Celsius

Attribute:

Attribute_Label: TMPMAY00_C
Attribute_Definition:

Mean May basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -6.1
Range_Domain_Maximum: 8.9
Attribute_Units_of_Measure: Degrees Celsius

Attribute:

Attribute_Label: TMPJUN00_C
Attribute_Definition:

Mean June basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 1.7
Range_Domain_Maximum: 13.9
Attribute_Units_of_Measure: Degrees Celsius

Attribute:

Attribute_Label: TMPJUL00_C
Attribute_Definition:

Mean July basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 5.0
Range_Domain_Maximum: 15.6
Attribute_Units_of_Measure: Degrees Celsius

Attribute:

Attribute_Label: TMPAUG00_C
Attribute_Definition:

Mean August basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 3.3
Range_Domain_Maximum: 13.9
Attribute_Units_of_Measure: Degrees Celsius

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: NA
Enumerated_Domain_Value_Definition:

Values omitted because data source showed extremely large values assumed to be erroneous.

Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute:

Attribute_Label: TMPSEP00_C
Attribute_Definition:

Mean September basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -3.3
Range_Domain_Maximum: 11.1
Attribute_Units_of_Measure: Degrees Celsius

Attribute:

Attribute_Label: TMPOCT00_C
Attribute_Definition:

Mean October basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -12.8
Range_Domain_Maximum: 7.2
Attribute_Units_of_Measure: Degrees Celsius

Attribute:

Attribute_Label: TMPNOV00_C
Attribute_Definition:

Mean November basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -21.7
Range_Domain_Maximum: 3.3
Attribute_Units_of_Measure: Degrees Celsius

Attribute:

Attribute_Label: TMPDEC00_C
Attribute_Definition:

Mean December basin temperature for 1971-2000 in the parts of the basin in Alaska, and for 1961-1990 in the parts of the basin in Canada, if any, from the respective PRISM datasets.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -27.2
Range_Domain_Maximum: 1.7
Attribute_Units_of_Measure: Degrees Celsius

Detailed_Description:

Entity_Type:

Entity_Type_Label: flowRegime_gageAttrib_basinOmit_AK_Curran_1914_2017.csv
Entity_Type_Definition:

Comma Separated Value (CSV) file containing reasons for the omission of 78 streamgage basins from the flow regime study.

Entity_Type_Definition_Source: Producer Defined

Attribute:

Attribute_Label: site_no
Attribute_Definition: USGS streamgage site identification number.
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 15008000
Range_Domain_Maximum: 15910000

Attribute:

Attribute_Label: station_nm
Attribute_Definition: Site name.
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain: USGS streamgage site names, e.g., SOULE R NR HYDER AK.

Attribute:

Attribute_Label: omitSite_condition
Attribute_Definition: Reason for omission.
Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: outbursts
Enumerated_Domain_Value_Definition: Streamflow record includes recurring outburst floods.
Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: regulated
Enumerated_Domain_Value_Definition: Streamflow was affected by regulation or diversion.
Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: redundant
Enumerated_Domain_Value_Definition:

Streamgage is hydrologically redundant, defined as nested with another basin and having a drainage area ratio (larger divided by smaller) less than 5.

Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: urbanized
Enumerated_Domain_Value_Definition: Streamflow was affected by urbanization.
Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: below minimum drainage area
Enumerated_Domain_Value_Definition:

Streamgage drainage area is less than 0.4 square miles (1 square kilometer).

Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: regulated:indeterminate drainage area
Enumerated_Domain_Value_Definition:

Streamflow was affected by regulation or diversion, and a drainage basin boundary cannot be determined for the streamgage.

Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: outbursts:regulated
Enumerated_Domain_Value_Definition:

Streamflow record includes recurring outburst floods, and streamflow was affected by regulation or diversion.

Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: regulated:urbanized
Enumerated_Domain_Value_Definition:

Streamflow was affected by regulation or diversion, and streamflow was affected by urbanization.

Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: indeterminate drainage area
Enumerated_Domain_Value_Definition:

A drainage basin boundary cannot be determined for the streamgage.

Enumerated_Domain_Value_Definition_Source: Producer defined

Attribute:

Attribute_Label: ret_redun_prtnr
Attribute_Definition:

For hydrologically redundant sites, U.S. Geological Survey (USGS) site identification number of redundant partner or partners retained for analysis.

Attribute_Definition_Source: Producer Defined
Attribute_Domain_Values:

Unrepresentable_Domain:

One or two site numbers, separated by colon as needed, e.g., 15106940 or 15106920:15106980.

Detailed_Description:

Entity_Type:

Entity_Type_Label: flowRegime_gageAttrib_dendrogram_AK_Curran_1914_2017.pdf
Entity_Type_Definition:

An Adobe Acrobat portable document file (.pdf). This graphic represents a dendrogram of hierarchical cluster analysis of seasonal streamflow patterns (represented as monthly Pardé z-scores for February, May, June, and July) for 253 streamgages in Alaska. Seasonal flow regimes are outlined at the 3-group, or class, level (1 is rain-dominated, 2 is snowmelt-dominated, and 3 is high-elevation-melt-dominated) and the 9-group, or subclass, level, (designated by 3-group identifier number and sequential subclass letter). Dendrogram order (numbered from left to right) and seasonal flow regime identification are provided for each streamgage in the attached table, flowRegime_gageAttrib_basinChar_AK_Curran_1914_2017.csv.

Entity_Type_Definition_Source: Producer Defined

Detailed_Description:

Entity_Type:

Entity_Type_Label: flowRegime_gageAttrib_scatterplots_AK_Curran_1914_2017.pdf
Entity_Type_Definition:

An Adobe Acrobat portable document file (.pdf). This plot shows a scatterplot and Pearson’s correlation coefficient (r) for variable pairs, where variables are dimensionless monthly Pardé coefficients, or mean monthly streamflow divided by mean annual streamflow. The plots on the diagonal are density curves showing the distribution of the data for each variable. Variables are identified as “mean_va_” followed by a numeral for the month. The statistical significance for the correlation coefficient (Corr) is symbolized as *** if the p-value is < 0.001, ** if the p-value is < 0.01, and * if the p-value is < 0.05.

Entity_Type_Definition_Source: Producer defined.

Streamgage Attributes, Basin Characteristics, and Seasonal Flow Regimes, Selected Streamgages in Alaska, 1914-2017

Metadata: