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Topographic measurements of Little Holland Tract, Sacramento-San Joaquin Delta, California, 2015, using backpack GPS
Topographic data were collected by the U.S. Geological Survey (USGS) in 2015 for Little Holland Tract in the Sacramento-San Joaquin River Delta, California. The data were collected on foot using a global positioning system (GPS) backpack platform that consisted of survey-grade Trimble R10 and R7 global navigation satellite system (GNSS) receivers with Zephyr 2 antennas. Orthometric elevations relative to NAVD88 were computed using the National Geodetic Survey Geoid12a, and the final data were projected in Cartesian coordinates using the UTM Zone 10 North (meters) (NAD83[2011]) coordinate system. The mean estimated vertical uncertainty of the 2015 USGS GPS backpack survey is 3.5 cm.Â
| Author(s) |
Alexander G Snyder  ,
Andrew Stevens ,
Emily M Carlson,
J. Lacy
|
| Publication Date | 2016 |
| Beginning Date of Data | 2015-05-22 |
| Ending Date of Data | 2015-06-19 |
| Data Contact | |
| DOI | https://doi.org/10.5066/F7RX9954 |
| Citation | Snyder, A.G., Stevens, A., Carlson, E.M., and Lacy, J., 2016, Topographic measurements of Little Holland Tract, Sacramento-San Joaquin Delta, California, 2015, using backpack GPS: U.S. Geological Survey data release, https://doi.org/10.5066/F7RX9954. |
| Metadata Contact | |
| Metadata Date | 2020-10-19 |
| Related Publication | There was no related primary publication associated with this data release. |
| Citations of these data | Loading https://doi.org/10.3133/ofr20161093 |
| Access | public |
| License | http://www.usa.gov/publicdomain/label/1.0/ |
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Harvest Source: Coastal and Marine Geoscience Data System
Harvest Date: 2024-07-12T05:30:07.690Z
Harvest Date: 2024-07-12T05:30:07.690Z