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Digital surface model (DSM) for the Liberty Island Conservation Bank Wildlands restoration site, Sacramento-San Joaquin Delta, California, 2018-10-23

Dates

Publication Date
Time Period
2018-10-23

Citation

Logan, J.B., Stevens, A.W., Johnson, C.D., and Lacy, J.R., 2020, Aerial imagery and structure-from-motion derived data products from UAS survey of the Liberty Island Conservation Bank Wildlands restoration site, Sacramento-San Joaquin Delta, California, October 2018: U.S. Geological Survey data release, https://doi.org/10.5066/P9GF8R1M

Summary

This portion of the data release presents a digital surface model (DSM) and hillshade of the Liberty Island Conservation Bank Wildlands restoration site in the Sacramento-San Joaquin Delta. The DSM has a resolution of 10 centimeters per-pixel and was derived from structure-from-motion (SfM) processing of aerial imagery collected with an Unmanned Aerial System (UAS) on 2018-10-23. 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 this DSM was acquired using two [...]

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Attached Files

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Wildlands_2018-10-23_DSM.xml
Original FGDC Metadata

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32.59 KB application/fgdc+xml
Wildlands_2018-10-23_DSM_10cm_hll.tif 99.19 MB image/geotiff
Wildlands_2018-10-23_DSM_10cm.tif 706.01 MB image/geotiff
Wildlands_2018-10-23_DSM_browse.png
“Digital Surface Model (DSM) from the 2018-10-23 UAS survey.”
thumbnail 2.02 MB image/png

Purpose

These data were collected in support of ongoing field experiments and numerical modeling by the USGS and others, with funding from the U.S. Bureau of Reclamation, to improve our understanding of habitat quality, the influence on various landscape features on ecosystem function, and the effects of restoration actions in the Sacramento–San Joaquin Delta. These data are intended for science researchers, students, policy makers, and the general public. The DSM can be used with geographic information systems (GIS) software for research purposes.

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