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Digital surface model (DSM) for the intertidal zone at West Whidbey Island, WA, 2019-06-04


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Logan, J.B., Grossman, E.E., VanArendonk, N.R., and Maverick, A.F.G., 2021, Aerial imagery and structure-from-motion data products from UAS survey of the intertidal zone at West Whidbey Island, WA, June 2019: U.S. Geological Survey data release,


This portion of the data release presents a digital surface model (DSM) and hillshade image of the intertidal zone at West Whidbey Island, WA. The DSM has a resolution of 4 centimeters per pixel and was derived from structure-from-motion (SfM) processing of aerial imagery collected with an unmanned aerial system (UAS) on 2019-06-04. Unlike a digital elevation model (DEM), the DSM represents the elevation of the highest object within the bounds of a cell. Vegetation, buildings and other objects have not been removed from the data. In addition, data artifacts resulting from noise in the original imagery have not been removed. The raw imagery used to create the DSM was acquired using a UAS fitted with a Ricoh GR II digital camera featuring [...]


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WestWhidbey_2019-06-04_DSM_browse.jpg thumbnail 477.06 KB image/jpeg
WestWhidbey_2019-06-04_DSM_4cm.tif 690.16 MB image/geotiff
WestWhidbey_2019-06-04_DSM_4cm_hll.tif 164.69 MB image/geotiff


These data were collected to characterize the morphology, substrate composition and roughness of intertidal areas to support modeling of coastal storm and wave impacts with sea-level rise as part of the USGS Puget Sound Coastal Storm Modeling System (PS-CoSMoS). The data are also intended to be used to model and evaluate sediment transport and its effects on coastal habitats, a focus of the USGS Coastal Habitats in Puget Sound Project (CHIPS) and its partners to inform resource management and adaptive planning for our Nation's coasts. The DSM can be used with geographic information systems (GIS) software for research purposes.

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