Historical Channel Positions and Alluvial Fan Extents for the Lower 10 Kilometers of the Snow River Flood Plain Near Seward, Alaska

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Beebee, Robin A. (ORCID: 0000-0002-2976-7294)
Publication_Date: 20220705
Title:
Historical Channel Positions and Alluvial Fan Extents for the Lower 10 Kilometers of the Snow River Flood Plain Near Seward, Alaska
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name:
GIS and Hydraulic Model data in Support of a Geomorphic and Hydraulic Assessment of Glacial Outburst Floods on the Snow River near Seward, Alaska
Issue_Identification: .
Publication_Information:
Publication_Place: Anchorage, Alaska
Publisher: U.S. Geological Survey, Alaska Science Center
Other_Citation_Details:
Suggested Citation: Beebee, R.A., 2022, GIS and hydraulic model data in support of a geomorphic and hydraulic assessment of glacial outburst floods on the Snow River near Seward, Alaska: U.S. Geological Survey data release, https://doi.org/10.5066/P9X2YE9O
Online_Linkage: https://doi.org/10.5066/P9X2YE9O
Larger_Work_Citation:
Citation_Information:
Originator: U.S. Geological Survey, Alaska Science Center
Publication_Date: 2012
Title:
Streambed Scour Monitoring and Modeling at Bridge Crossings in Alaska
Geospatial_Data_Presentation_Form: project website
Series_Information:
Series_Name: Science Portal
Issue_Identification: 56
Publication_Information:
Publication_Place: Anchorage, Alaska
Publisher: U.S. Geological Survey, Alaska Science Center
Other_Citation_Details:
This is a link to the broader USGS Alaska Science Center research project supported by these data. Users will find a description of the research project and links to associated reports, publications, and data products.
Online_Linkage: https://alaska.usgs.gov/portal/project.php?project_id=56
Description:
Abstract:
The USGS mapped main channels and alluvial fan extents in the lower 10 kilometers of the Snow River flood plain near Seward, Alaska as part of an assessment of river channel stability under an outburst flood regime. Channels and fan extents were mapped from aerial photographs and satellite imagery dating from 1951 to 2019.
Purpose:
Glacial lake outburst floods from Snow Glacier have inundated the lower Snow River flood plain since at least 1949. Highway, railroad, and electrical utility infrastructure have all suffered damage during the larger outburst floods. Changing channel locations can increase flood damage and threaten previously safe infrastructure. The purpose of mapping historical channel locations was to look for evidence of patterns and trends in historical channel locations and detect changes that are due to outburst floods. The purpose of mapping alluvial fan extents was to determine whether the Snow River is actively aggrading due to deposition.
Supplemental_Information:
Two companion datasets are included with this data package: "Height Above River Elevations for the Lower 10 Kilometer of the Snow River Near Seward, Alaska" and "Tabular Input/Output Data and Model Files for a Two-dimensional Hydraulic and Sediment Transport Model of the Lower 10 Kilometers of the Snow River Near Seward, Alaska".
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 19510625
Ending_Date: 20190905
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -149.369961
East_Bounding_Coordinate: -149.308793
North_Bounding_Coordinate: 60.347080
South_Bounding_Coordinate: 60.259008
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:ASC475
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: InlandWaters
Theme_Keyword: GeoscientificInformation
Theme:
Theme_Keyword_Thesaurus: NASA GCMD Earth Science Keyword Thesaurus
Theme_Keyword: Terrestrial Hydrosphere
Theme_Keyword: Surface Water
Theme_Keyword: Floods
Theme_Keyword: Rivers/Streams
Theme_Keyword: Water Depth
Theme_Keyword: Erosion/Sedimentation
Theme_Keyword: Sediment transport
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: Hydrology
Theme_Keyword: Lidar
Theme_Keyword: River systems
Theme_Keyword: Geomorphology
Theme:
Theme_Keyword_Thesaurus: Alexandria Digital Library Feature Type Thesaurus
Theme_Keyword: Rivers
Theme_Keyword: Alluvial fans
Theme_Keyword: River channel
Theme_Keyword: River bank
Place:
Place_Keyword_Thesaurus: USGS Geographic Names Information System (GNIS)
Place_Keyword: Alaska
Place_Keyword: Snow River
Place_Keyword: Kenai Lake
Place_Keyword: Kenai Peninsula Borough
Access_Constraints: None
Use_Constraints:
It is requested that the authors and the USGS Alaska Science Center be cited for any subsequent publications that reference this dataset.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, Alaska Science Center
Contact_Address:
Address_Type: Mailing and Physical
Address: 4210 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508
Country: USA
Contact_Voice_Telephone: 907-786-7000
Contact_Electronic_Mail_Address: ascweb@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: glacialFlood_mainChannels_snowRv_beebee_browse.jpg
Browse_Graphic_File_Description: Channel shapefiles overlaid on 1997 orthophoto
Browse_Graphic_File_Type: JPEG
Data_Set_Credit:
This study was prepared in cooperation with the Alaska Railroad Corporation.
Native_Data_Set_Environment:
Environment as of Metadata Creation: Microsoft Windows 10 Version 20H2 (Build 19042.1165); Esri ArcGIS 10.8.1 (Build 14362) Service Pack N/A (Build N/A)
Cross_Reference:
Citation_Information:
Originator: Beebee, R.A.
Publication_Date: 2022
Title:
Recent History of Glacial Lake Outburst Floods, Analysis of Channel Changes, and Development of a Two-Dimensional Flow and Sediment Transport Model of the Snow River near Seward, Alaska
Geospatial_Data_Presentation_Form: document
Series_Information:
Series_Name: U.S. Geological Survey, Scientific Investigations Report
Issue_Identification: 2022–5099
Publication_Information:
Publication_Place: online
Publisher: U.S. Geological Survey
Other_Citation_Details:
Beebee, R.A., 2022, Recent history of glacial lake outburst floods, analysis of channel changes, and development of a two-dimensional flow and sediment transport model of the Snow River near Seward, Alaska: U.S. Geological Survey Scientific Investigations Report 2022–5099, 39 p., https://doi.org/10.3133/sir20225099
Online_Linkage: https://doi.org/10.3133/sir20225099
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Basis for interpretation of geomorphic features is discussed in the cross-referenced USGS Scientific Investigations Report (Beebee 2022).
Logical_Consistency_Report: Attribute values fall within expected ranges.
Completeness_Report: No data were omitted and there are no missing data.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
A formal accuracy assessment of the horizontal positional information in the data set has not been conducted. The accuracy of the delineations is closely linked to the accuracy of the underlying datasets, primarily the 1997 digital orthophotogaph, to which the other imagery was georeferenced. The original scale of the aerial photographs ranges from 1:65,000 to 1:30,000 and the resolution of digital and satellite imagery ranges from 1-meter ground resolution in the 1997 Digital Orthoquad to 10-meter ground resolution in Sentinel satellite imagery. Channels and fans were mapped at a scale of 1:10:000.
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey, EROS Data Center
Publication_Date: Unknown
Title: Aerial Photos
Geospatial_Data_Presentation_Form: remote-sensing image
Series_Information:
Series_Name: Single Frame Aerial Photography
Issue_Identification: ARBM05090030444
Publication_Information:
Publication_Place: Sioux Falls, South Dakota
Publisher:
U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center
Other_Citation_Details:
U.S. Geological Survey, EROS Data Center, 1951, Aerial Photo Single Frame, accessed 2021, at https://earthexplorer.usgs.gov, EarthExplorer. [Parameters: June 25, 1951, Identifier: ARBM05090030444]
Online_Linkage: https://earthexplorer.usgs.gov
Source_Scale_Denominator: 40000
Type_of_Source_Media: Digital and/or Hardcopy Resources
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19510625
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: 1951 aerial photograph
Source_Contribution: Reference for 1951 main channel and alluvial fan delineation
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey, EROS Data Center
Publication_Date: Unknown
Title: Aerial Photos
Geospatial_Data_Presentation_Form: remote-sensing image
Series_Information:
Series_Name: Single Frame Aerial Photography
Issue_Identification: ARB7140B01K0024
Publication_Information:
Publication_Place: Sioux Falls, South Dakota
Publisher:
U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center
Other_Citation_Details:
U.S. Geological Survey, EROS Data Center, 1973, Aerial Photo Single Frame, accessed 2021, at https://earthexplorer.usgs.gov, EarthExplorer. [Parameters: June 28, 1973, Identifier: ARB7140B01K0024]
Online_Linkage: https://earthexplorer.usgs.gov
Source_Scale_Denominator: 64296
Type_of_Source_Media: digital database file
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19730628
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: 1973 aerial photograph
Source_Contribution: Reference for 1973 main channel and alluvial fan delineation
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey, EROS Data Center
Publication_Date: Unknown
Title: Aerial Photos
Geospatial_Data_Presentation_Form: remote-sensing image
Series_Information:
Series_Name: Single Frame Aerial Photography
Issue_Identification: AR1VEHF00027201
Publication_Information:
Publication_Place: Sioux Falls, South Dakota
Publisher:
U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center
Other_Citation_Details:
U.S. Geological Survey, EROS Data Center, 1976, Aerial Photo Single Frame, accessed 2021, at https://earthexplorer.usgs.gov, EarthExplorer. [Parameters: July 7, 1976, Identifier: AR1VEHF00027201]
Online_Linkage: https://earthexplorer.usgs.gov
Source_Scale_Denominator: 30000
Type_of_Source_Media: digital database file
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19760725
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: 1976 Aerial Photograph
Source_Contribution: Reference for 1976 main channel delineation
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey, EROS Data Center
Publication_Date: Unknown
Title: Aerial Photos
Geospatial_Data_Presentation_Form: remote-sensing image
Series_Information:
Series_Name: Single Frame Aerial Photography
Issue_Identification: AR5780026626886
Publication_Information:
Publication_Place: Sioux Falls, South Dakota
Publisher:
U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center
Other_Citation_Details:
U.S. Geological Survey, EROS Data Center, 1978, Aerial Photo Single Frame, accessed 2021, at https://earthexplorer.usgs.gov, EarthExplorer. [Parameters: August 24, 1978, Identifier: AR5780026626886]
Online_Linkage: https://earthexplorer.usgs.gov
Source_Scale_Denominator: 64333
Type_of_Source_Media: online
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19780824
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: 1978 aerial photograph
Source_Contribution: Reference for 1978 main channel and alluvial fan delineation.
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey, EROS Data Center
Publication_Date: 19850827
Title: Aerial Photos
Geospatial_Data_Presentation_Form: remote-sensing image
Series_Information:
Series_Name: Single Frame Aerial Photography
Issue_Identification: AR5840033837017
Publication_Information:
Publication_Place: Sioux Falls, South Dakota
Publisher:
U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center
Other_Citation_Details:
U.S. Geological Survey, EROS Data Center, 1984, Aerial Photo Single Frame, accessed 2021, at https://earthexplorer.usgs.gov, EarthExplorer. [Parameters: August 12, 1984, Identifier: AR5840033837017]
Online_Linkage: https://earthexplorer.usgs.gov
Source_Scale_Denominator: 62600
Type_of_Source_Media: digital database file
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19840812
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: 1984 aerial photograph
Source_Contribution:
Reference for delineation of 1984 main channel and alluvial fan.
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey, EROS Data Center
Publication_Date: Unpublished material
Title: DOQ
Geospatial_Data_Presentation_Form: remote-sensing image
Series_Information:
Series_Name: Digital Orthophoto Quadrangle
Issue_Identification: DI00000001090157
Publication_Information:
Publication_Place: Menlo Park, CA USA
Publisher: U.S. Geological Survey
Other_Citation_Details:
U.S. Geological Survey, EROS Data Center, 1997, Digital Orthophoto Quadrangle, accessed 2021, at https://earthexplorer.usgs.gov, EarthExplorer. [Parameters: June 26, 1997, Identifier: DI00000001090157]
Online_Linkage: https://earthexplorer.usgs.gov
Type_of_Source_Media: digital database file
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 19970626
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: 1997 Digital Orthoquad
Source_Contribution:
Reference for 1997 main channel and alluvial fan delineation. Also used as base to georeference other imagery.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Digital Globe
Publication_Date: Unknown
Title: 2003 Kenai Peninsula Borough Digital Globe Imagery
Geospatial_Data_Presentation_Form: remote-sensing image
Other_Citation_Details:
Kenai Peninsula Borough, 2003, Imagery Archive, accessed 2021, at https://gis.kpb.us/map/index.html?viewer=imagery. [Parameters: 2003]
Online_Linkage: https://gis.kpb.us/map/index.html?viewer=imagery
Type_of_Source_Media: digital database file
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2003
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: 2003 Quickbird Imagery
Source_Contribution: Reference for 2003 main channel and alluvial fan delineation.
Source_Information:
Source_Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: Kenai Peninsula Borough 2012/2013 fixed wing aerial imagery
Geospatial_Data_Presentation_Form: remote-sensing image
Other_Citation_Details:
Kenai Peninsula Borough, 2012, Imagery Archive, accessed 2021, at https://gis.kpb.us/map/index.html?viewer=imagery. [Parameters: 2012/2013]
Online_Linkage: https://gis.kpb.us/map/index.html?viewer=imagery
Type_of_Source_Media: digital database file
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 2012
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: 2012 aerial photograph
Source_Contribution: Reference for 2012 main channel and alluvial fan delineation
Source_Information:
Source_Citation:
Citation_Information:
Originator: Kinzel, P.J., and Legleiter, C.J.
Publication_Date: 20210317
Title:
Geo-referenced orthophotographs of the Snow River, Alaska, acquired September 1, 2018
Geospatial_Data_Presentation_Form: raster digital data
Publication_Information:
Publication_Place: U.S. Geological Survey - ScienceBase
Publisher: U.S. Geological Survey
Other_Citation_Details:
Kinzel, P.J., and Legleiter, C.J., 2021, Geo-referenced orthophotographs of the Snow River, Alaska, acquired September 1, 2018: U.S. Geological Survey data release, https://doi.org/10.5066/P9G8LKCK.
Online_Linkage: https://doi.org/10.5066/P9G8LKCK
Type_of_Source_Media: digital database file
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20180901
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: 2018 Aerial Orthophoto
Source_Contribution: Reference for delineation of 2018 alluvial fan extent
Source_Information:
Source_Citation:
Citation_Information:
Originator: Copernicus Sentinel
Publication_Date: 20170601
Title: Modified Copernicus Sentinel data 2017/Sentinel Hub
Geospatial_Data_Presentation_Form: remote-sensing image
Series_Information:
Series_Name: ESA Copernicus Sentinel 2
Issue_Identification: S2A_MSIL1C_20170601T211521_N0205_R143_T06VUM_20170601T211515
Publication_Information:
Publication_Place: Ljubljana, Slovenia
Publisher: Sinergise Laboratory for geographical information systems, Ltd.
Other_Citation_Details:
Copernicus Sentinel, 2017, Satellite Image, accessed 2021 at, ESA Copernicus Open Access Hub, https://scihub.copernicus.eu/dhus/#/home. [Parameters: June 1, 2017, Identifier: S2A_MSIL1C_20170601T211521_N0205_R143_T06VUM_20170601T211515]
Online_Linkage: https://scihub.copernicus.eu/dhus/#/home
Type_of_Source_Media: digital database file
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20170601
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: June 2017 Sentinel Satellite Image
Source_Contribution: Reference for delineation of June 2017 channel
Source_Information:
Source_Citation:
Citation_Information:
Originator: Copernicus Sentinel
Publication_Date: 20171020
Title: Modified Copernicus Sentinel data 2017/Sentinel Hub
Geospatial_Data_Presentation_Form: remote-sensing image
Series_Information:
Series_Name: ESA Copernicus Sentinel 2
Issue_Identification: S2B_MSIL1C_20171020T213519_N0205_R086_T06VUM_20171020T213515
Publication_Information:
Publication_Place: Ljubljana, Slovenia
Publisher: Sinergise Laboratory for geographical information systems, Ltd.
Other_Citation_Details:
Copernicus Sentinel, 2017, Satellite Image, accessed 2021 at, ESA Copernicus Open Access Hub, https://scihub.copernicus.eu/dhus/#/home. [Parameters: October 20, 2017, Identifier: S2B_MSIL1C_20171020T213519_N0205_R086_T06VUM_20171020T213515]
Online_Linkage: https://scihub.copernicus.eu/dhus/#/home
Type_of_Source_Media: digital database file
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20171020
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: October 2017 Sentinel Image
Source_Contribution: Reference for delineation of October 2017 channel
Source_Information:
Source_Citation:
Citation_Information:
Originator: Copernicus Sentinel
Publication_Date: 20190917
Title: Modified Copernicus Sentinel data 2017/Sentinel Hub
Geospatial_Data_Presentation_Form: remote-sensing image
Series_Information:
Series_Name: ESA Copernicus Sentinel 2
Issue_Identification:
S3A_SL_2_LST____20190917T071457_20190917T071757_20210120T141405_01
Publication_Information:
Publication_Place: Ljubljana, Slovenia
Publisher: Sinergise Laboratory for geographical information systems, Ltd.
Other_Citation_Details:
Copernicus Sentinel, 2017, Satellite Image, accessed 2021 at, ESA Copernicus Open Access Hub, https://scihub.copernicus.eu/dhus/#/home. [Parameters: September 17, 2019, Identifier: S3A_SL_2_LST____20190917T071457_20190917T071757_20210120T141405_01]
Online_Linkage: https://scihub.copernicus.eu/dhus/#/home
Type_of_Source_Media: digital database file
Source_Time_Period_of_Content:
Time_Period_Information:
Single_Date/Time:
Calendar_Date: 20190917
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: 2019 Sentinel Image
Source_Contribution: Reference for delineation of 2019 channel
Process_Step:
Process_Description:
Each image was georeferenced in ArcMap to the 1997 orthophotograph in the project area using visible stable markers. Channels were delineated at a scale of 1:6,000 by digitizing the visible edge of water. Alluvial fan extents were delineated by digitizing the interface between Kenai Lake and visible fan sediment surrounding the active channel of Snow River. Where the channels entered the lake, a straight line was drawn between visible fan sediment across the channel.
Source_Used_Citation_Abbreviation: 1951 aerial photograph
Source_Used_Citation_Abbreviation: 1973 aerial photograph
Source_Used_Citation_Abbreviation: 1976 aerial photograph
Source_Used_Citation_Abbreviation: 1978 aerial photograph
Source_Used_Citation_Abbreviation: 1985 aerial photograph
Source_Used_Citation_Abbreviation: 1997 aerial photograph
Source_Used_Citation_Abbreviation: 2003 Quickbird Imagery
Source_Used_Citation_Abbreviation: 2012 aerial photograph
Source_Used_Citation_Abbreviation: June 2017 Sentinel Satellite image
Source_Used_Citation_Abbreviation: October 2017 Sentinel Satellite image
Source_Used_Citation_Abbreviation: 2018 Aerial Orthophoto
Source_Used_Citation_Abbreviation: 2019 Sentinel Satellite image
Process_Date: Unknown
Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: State Plane Coordinate System 1983
State_Plane_Coordinate_System:
SPCS_Zone_Identifier: 5004
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9999
Longitude_of_Central_Meridian: -150.0000
Latitude_of_Projection_Origin: 54.000
False_Easting: 1640416.66666667
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:
Abscissa_Resolution: 0.6096
Ordinate_Resolution: 0.6096
Planar_Distance_Units: survey feet
Geodetic_Model:
Horizontal_Datum_Name: North American Datum of 1983 (NAD 83)
Ellipsoid_Name: Geodetic Reference System 1980 (GRS 80)
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.25722210088
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: glacialFlood_mainChannels_snowRv_beebee
Entity_Type_Definition:
Vector polygon geospatial file delineating the mapped main channels along the lower 10 kilometers of the Snow River floodplain. Presented in both Esri shapefile (SHP) and Keyhole Markup Language (KML) formats, additionally a JPG browse map is provided for convenience of viewing.
Entity_Type_Definition_Source: Author defined
Attribute:
Attribute_Label: Name
Attribute_Definition:
Name for each shape including year and month (if more than one in same year)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Unrepresentable_Domain:
First four digits are the year of the base image, name of the month (only for 2017 channels).
Attribute:
Attribute_Label: Date
Attribute_Definition: Date of source image acquisition (if known)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1951-06-25
Range_Domain_Maximum: 2019-09-05
Attribute_Units_of_Measure: Date (YYYY-MM-DD)
Detailed_Description:
Entity_Type:
Entity_Type_Label: glacialFlood_alluvialFanExtent_snowRv_beebee
Entity_Type_Definition:
Vector polyline geospatial file delineating the outer alluvial fan extents of Snow River where it debouches into Kenai Lake. Presented in both Esri shapefile (SHP) and Keyhole Markup Language (KML) formats.
Entity_Type_Definition_Source: Author defined
Attribute:
Attribute_Label: Name
Attribute_Definition:
Name for each shape including year and month (if more than one in same year)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Unrepresentable_Domain:
First four digits are the year of the base image, name of the month (only for 2017 channels).
Attribute:
Attribute_Label: Date
Attribute_Definition: Date of source image acquisition (if known)
Attribute_Definition_Source: Author defined
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1951-06-25
Range_Domain_Maximum: 2018-09-01
Attribute_Units_of_Measure: Date (YYYY-MM-DD)
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, Alaska Science Center
Contact_Address:
Address_Type: Mailing and Physical
Address: 4210 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508
Country: USA
Contact_Voice_Telephone: 907-786-7000
Contact_Electronic_Mail_Address: ascweb@usgs.gov
Resource_Description:
The U.S. Geological Survey, Alaska Science Center is the authoritative source and distributor of these data.
Distribution_Liability:
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data for other purposes or on all computer systems, nor shall the act of distribution constitute any such warranty. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: SHP, KML, CSV
Format_Information_Content:
Data are distributed in a Zip package containing data in SHP, KML, and CSV formats and FGDC metadata in XML and HTML formats.
File_Decompression_Technique:
Compression applied by the 7-Zip utility using the default compression level [5]. The Zip package can be decompressed and unpacked by open source or commercially available unzip tools.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: https://doi.org/10.5066/P9X2YE9O
Fees: None
Technical_Prerequisites:
Requires geospatial viewing software to read and render a shapefile, KML or KMZ format data.
Metadata_Reference_Information:
Metadata_Date: 20230112
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey, Alaska Science Center
Contact_Address:
Address_Type: Mailing and Physical
Address: 4210 University Drive
City: Anchorage
State_or_Province: Alaska
Postal_Code: 99508
Country: USA
Contact_Voice_Telephone: 907-786-7000
Contact_Electronic_Mail_Address: ascweb@usgs.gov
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata (CSDGM)
Metadata_Standard_Version: FGDC-STD-001-1998
Generated by mp version 2.9.52 on Thu Jan 12 21:49:39 2023