Field Activity 2022-604-FA

Identifier 2022-604-FA
Alternate names Winter bathymetric survey, Jenkinson Lake, CA
Purpose Conduct baseline bathymetric survey of Jenkinson Lake for change detection work in response to Caldor fire in northern California
Location Northern CA
Summary Swath mapping of Jenkinson Lake was conducted using the R/V San Lorenzo 2022-01-10 - 2022-01-12. Single-beam mapping was conducted in the shallow upper portion of the lake using the CEEscope echosounder on a rigid-hull inflatable boat 2022-01-11 - 2022-01-12. Average daily lake levels recorded by El Dorado Irrigation District were approximately 3,448 ft (98 ft level), 67% of full. Area of bathymetric data collection on the reservoir delta at Hazel Creek and Sly Park Creek overlapped considerably with the lateral extent of the topographic UAS surveys conducted on 2021-10-13 (FAN 2021-655-FA) and 2021-11-04 (FAN 2021-659-FA), during which the water surface elevation was lower.
Info derived bathymetry
Comments Entries for this field activity are based on entries from Field Activity 2021-659-FA.
San Lorenzo
Length: 26 feet. Built in 1999 by Radon.
Start Santa Cruz, CA 2022-01-10
End Santa Cruz, CA 2022-01-14
Days in the field 3
West -120.58216095
East -120.51074982
North 38.74256967
South 38.70533855


2885 Mission Street
Santa Cruz, CA95060
(831) 460-7401
Principal investigators Amy East
Crew members
Peter Dartnell
Scientist, Staff
Jackson E Currie
Scientist, Staff
Joshua Logan
Scientist, Staff
Daniel C Powers
Scientist, Staff
Information specialist(s)
Joshua Logan
Specialist, Information

Data types and categories

Data category: Sonar, Location-Elevation
Data type: Interferometric, Single Beam, Navigation

Equipment used

Equipment Usage description Data types Datasets
GPS Navigation (no data reported)
Fathometer Single Beam (no data reported)
Interferrometric Interferometric (no data reported)


Samples collected during this field activity