| Identifier | 2022-666-FA | ||||||||
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| Alternate names | Topographic survey, Jenkinson Lake and Oxbow Reservoir, CA | ||||||||
| Purpose | Conduct topographic survey of exposed reservoir surfaces at Jenkinson Lake (El Dorado county) and Oxbow Reservoir (Placer county) for change detection work in response to Caldor fire (2021) and Mosquito fire (2022) in northern California | ||||||||
| Location | Northern CA | ||||||||
| Info derived | aerial imagery, topography | ||||||||
| Comments | Entries for this field activity are based on entries from Field Activity 2021-655-FA. Entries for this field activity are based on entries from Field Activity 2021-659-FA. | ||||||||
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| Organization |
2885 Mission Street
Santa Cruz, CA95060
(831) 460-7401
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| Principal investigators | Amy East | ||
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| Data category: | Location-Elevation, Imagery |
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| Data type: | Navigation, Photo |
| Equipment | Usage description | Data types | Datasets |
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| Trimble R10 | Benchmarks, LIDAR, Navigation, Profiles, Transects | 2 | |
| Structure from Motion - UAS | Photo | 2 |
| Dataset name | Equipment | Description | Dataset contact |
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| Digital Elevation Model of Oxbow Reservoir, Placer County, California, October 2022 | Trimble R10 | DEM created using topographic survey data collected on 26 October 2022 | Joshua Logan |
| Topographic survey data of portions of Oxbow Reservoir in Placer County, California | Trimble R10 | Topographic survey data of portions of Oxbow Reservoir in Placer County, California collected on 26 October 2022 | Joshua Logan |
| Dataset name | Equipment | Description | Dataset contact |
|---|---|---|---|
| Digital Surface Models (DSM) from UAS surveys of the upper reservoir delta at Jenkinson Lake, El Dorado County, California | Structure from Motion - UAS | High-resolution Digital Surface Models (DSM) of the Jenkinson Lake upper reservoir delta in El Dorado County, California. The DSMs have resolutions of 10 centimeters per pixel and were derived from structure-from-motion (SfM) processing of aerial imagery collected during surveys with unoccupied aerial systems (UAS). The surveys were on 2021-10-13, 2021-11-04, 2022-10-25, and 2023-11-13, and were generally timed to coincide with low water level in the reservoir to maximize sub-aerial coverage. | Joshua Logan |
| Orthomosaic images from UAS surveys of the upper reservoir delta at Jenkinson Lake, El Dorado County, California | Structure from Motion - UAS | High-resolution orthomosaic images of the Jenkinson Lake upper reservoir delta in El Dorado County, California. The orthomosaics have resolutions of 2.5 centimeters per pixel and were derived from structure-from-motion (SfM) processing of aerial imagery collected during surveys with unoccupied aerial systems (UAS). The surveys were on 2021-10-13, 2021-11-04, 2022-10-25, and 2023-11-13, and were generally timed to coincide with low water level in the reservoir to maximize sub-aerial coverage. | Joshua Logan |
