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Orthomosaic imagery 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 high-resolution orthomosaic image of the Liberty Island Conservation Bank Wildlands restoration site in the Sacramento-San Joaquin Delta. The orthomosaic has a resolution of 3 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. The raw imagery used to create the orthomosaic image was acquired using two UAS fitted with Ricoh GR II digital cameras with global shutters. The UAS were flown on pre-programmed autonomous flight lines at an approximate altitude of 120 meters above-ground-level. The flight lines were oriented roughly east-west and were spaced to provide approximately 66 percent [...]

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Attached Files

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Wildlands_2018-10-23_orthomosaic_browse.jpg
“Orthomosaic image from the 2018-10-23 UAS survey.”
thumbnail 624.76 KB image/jpeg
Wildlands_2018-10-23_orthomosaic_3cm.tif 416.15 MB image/geotiff

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 orthomosaic image can be used with geographic information systems (GIS) software for research purposes.

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