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River mask before and after the Elwha dam removals, WA.

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Owners:		This resource does not have an owner who is an active HydroShare user. Contact CUAHSI (help@cuahsi.org) for information on this resource.
Type:	Resource
Storage:	The size of this resource is 5.8 MB
Created:	Feb 12, 2021 at 5:26 a.m.
Last updated:	Feb 08, 2024 at 5:18 p.m. (Metadata update)
Published date:	Feb 08, 2024 at 5:18 p.m.
DOI:	10.4211/hs.db248589a52a41c4a6f387bbefbab3a9
Citation:	See how to cite this resource
Content types:	Geographic Raster Content

Sharing Status:	Published
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Abstract

Two dams located on the Elwha River in Washington state were removed from 2011 to 2014. This resource contains a river mask prior to the removal in 2011 and three subsequent mask files from 2013, 2015, and 2017 showing the morphological evolution of the channel. The output river mask raster data were created using publicly available aerial imagery from the National Agricultural Imagery Program. First, supervised classification was performed to classify all water, non-water (vegetation, bare soil, and urban), water shadow, and non-water shadow pixels. The clear water and shadow water pixels were then reclassified as one, and finally, pixels around bridge cross sections, and additional misclassified pixels were manually corrected for each time period.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

North Latitude

48.1612°

East Longitude

-123.5350°

South Latitude

47.9678°

West Longitude

-123.6206°

Content

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Data Services

The following web services are available for data contained in this resource. Geospatial Feature and Raster data are made available via Open Geospatial Consortium Web Services. The provided links can be copied and pasted into GIS software to access these data. Multidimensional NetCDF data are made available via a THREDDS Data Server using remote data access protocols such as OPeNDAP. Other data services may be made available in the future to support additional data types.

Web Map Service

https://geoserver.hydroshare.org/geoserver/HS-db248589a52a41c4a6f387bbefbab3a9/wms?request=GetCapabilities

Web Coverage Service

https://geoserver.hydroshare.org/geoserver/HS-db248589a52a41c4a6f387bbefbab3a9/wcs?request=GetCapabilities

Related Resources

This resource is described by

Sharma, A. (2023). Development and Validation of an Integrated Modeling Approach to Reconstruct the Propagation of Fluvial Sediment Pulses After Dam Removals.

Credits

Contributors

People or Organizations that contributed technically, materially, financially, or provided general support for the creation of the resource's content but are not considered authors.

Name	Organization	Address	Phone	Author Identifiers
Celso Castro Bolinaga	North Carolina State University	Biological and Agricultural Engineering, North Carolina State University, Raleigh, NC, 27606.

How to Cite

Sharma, A., C. Castro-Bolinaga (2024). River mask before and after the Elwha dam removals, WA., HydroShare, https://doi.org/10.4211/hs.db248589a52a41c4a6f387bbefbab3a9

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/

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