Height Above River Elevations for the Lower 10 Kilometers of the Snow River Flood Plain Near Seward, Alaska

Identification_Information:

Citation:

Citation_Information:

Originator: Beebee, Robin A. (ORCID: 0000-0002-2976-7294)
Publication_Date: 20220705
Title:

Geospatial_Data_Presentation_Form: raster 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:

A height-above-river raster produced from 2008 lidar bare-earth elevations for the lower 10 kilometers of the Snow River flood plain is used as part of a geomorphic assessment to identify areas susceptible to inundation and erosion during outburst floods from Snow Lake. This dataset presents flood plain elevations above the approximate elevation of the main river channel low water surface.

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. The dataset was produced to compare the elevation of areas along flood plain channel to the elevation of channel banks, and identify areas where floodwaters rapidly disperse throughout the flood plain.

Supplemental_Information:

Two companion datasets are included with this data package: "Historical Channel Positions and Alluvial Fan Extents for the Lower 10 Kilometers of the Snow River Flood Plain 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:

Single_Date/Time:

Calendar_Date: 200806

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -149.357
East_Bounding_Coordinate: -149.306
North_Bounding_Coordinate: 60.337
South_Bounding_Coordinate: 60.255

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:ASC476

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_heightAboveRiver_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 1909 (OS Build 18363.1443); Esri ArcGIS 10.8.1

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:

The positional accuracy of the data dependent on the accuracy of the underlying lidar dataset. 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:

The accuracy of horizontal positions is completely dependent on the accuracy of the underlying lidar dataset, which is reported as 0.7 meters.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: Olson, P.S.
Originator: Legg, N.T.
Originator: Abbe, T.B.
Originator: Reinhart, M.A.
Originator: Radloff, J.K.
Publication_Date: 2014
Title:

A Methodology for Delineating Planning-Level Channel Migration Zones

Geospatial_Data_Presentation_Form: document
Series_Information:

Series_Name: Washington State Department of Ecology
Issue_Identification: Publication no. 14-06-025

Publication_Information:

Publication_Place: Olympia, Washington
Publisher: Department of Ecology, State of Washington

Other_Citation_Details:

Olson, P.S., Legg, N.T., Abbe, T.B., Reinhart, M.A., Radloff, J.K. 2014. A Methodology for Delineating Planning-Level Channel Migration Zones. Washington State Department of Ecology, Publication no. 14-06-025

Online_Linkage:

https://fortress.wa.gov/ecy/publications/SummaryPages/1406025.html

Type_of_Source_Media: publication
Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2014

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: Olson et al. 2014
Source_Contribution: Height Above River Raster Creation

Source_Information:

Source_Citation:

Citation_Information:

Originator: Aero-Metric, Inc.
Publication_Date: 2013
Title:

2008 Kenai Watershed Forum Topographic LiDAR: Kenai Peninsula, Alaska

Geospatial_Data_Presentation_Form: digital point data
Publication_Information:

Publication_Place: online
Publisher: NOAA Office for Coastal Management (NOAA/OCM)

Other_Citation_Details:

Aero-Metric, Inc. 2013. 2008 Kenai Watershed Forum Topographic LiDAR: Kenai Peninsula, Alaska. NOAA National Centers for Environmental Information https://www.fisheries.noaa.gov/inport/item/49620

Lidar dataset archived by NOAA National Centers for Environmental Information (InPort) https://www.fisheries.noaa.gov/inport [Catalog Item ID: 49620]

Online_Linkage: https://www.fisheries.noaa.gov/inport/item/49620

Type_of_Source_Media: digital database file
Source_Time_Period_of_Content:

Time_Period_Information:

Multiple_Dates/Times:

Single_Date/Time:

Calendar_Date: 20080521

Single_Date/Time:

Calendar_Date: 20080522

Single_Date/Time:

Calendar_Date: 20080523

Single_Date/Time:

Calendar_Date: 20080605

Single_Date/Time:

Calendar_Date: 20080606

Single_Date/Time:

Calendar_Date: 20080607

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: 2008 Kenai Lidar
Source_Contribution:

Elevation reference for both flood plain and river elevations for development of height-above-river raster.

Process_Step:

Process_Description:

The height-above-river raster was derived using the methods of Olson (et al) 2014. The low-flow water surface points were picked out of the .LAS file of raw lidar points. Flow paths outside the channel were estimated as parallel to the slope of the flood plain, to flood plain channels, or the main channel, whichever was nearer. The water surface elevation from the lidar was applied to lines drawn across the flood plain perpendicular to the flow paths. The polyline layer attributed with river elevations was interpolated to a TIN surface, and converted to a GRID elevation raster with the same cell size (10.45 feet) as the 2008 lidar. Then the water surface raster was subtracted from the 2008 lidar raster to obtain the height-above-river raster.

Source_Used_Citation_Abbreviation: 2008 Kenai Lidar
Process_Date: 201911

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster
Raster_Object_Information:

Raster_Object_Type: Grid Cell
Row_Count: 2754
Column_Count: 1203

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: 10.45
Ordinate_Resolution: 10.45

Planar_Distance_Units: survey feet

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983 (NAD 83)
Ellipsoid_Name: Geodetic Reference System 1980
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.25722210088

Vertical_Coordinate_System_Definition:

Altitude_System_Definition:

Altitude_Datum_Name: North American Vertical Datum of 1988
Altitude_Resolution: 0.10
Altitude_Distance_Units: feet
Altitude_Encoding_Method: Implicit coordinate

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: glacialFlood_heightAboveRiver_snowRv_beebee
Entity_Type_Definition:

Raster geospatial file height above river. Presented in GeoTIFF format and associated Esri files.

Entity_Type_Definition_Source: Author defined

Attribute:

Attribute_Label: Value
Attribute_Definition:

Height of the ground surface above the low flow water surface of the Snow River.

Attribute_Definition_Source: Author defined
Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: -8.44
Range_Domain_Maximum: 19.99
Attribute_Units_of_Measure: feet

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: GeoTIFF
Format_Information_Content:

Data are distributed in a Zip package containing data in TIF format 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 GeoTiff format data.

Height Above River Elevations for the Lower 10 Kilometers of the Snow River Flood Plain Near Seward, Alaska

Metadata: