Citation:

PANGAEA.996714 (DOI registration in progress)

Name: Salton Sea 2020-2023 Water Column Geochemistry
Published: 2026-08-28
License: https://creativecommons.org/licenses/by/4.0/
Keywords: Geochemistry; Lake; sulfate reduction rates

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Published: 2026-08-28

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Abstract:

The following dataset includes water column geochemistry for the Salton Sea, a rapidly drying inland lake in California's Coachella Valley. These measurements were conducted to assess how rapid desiccation, a similar phenomenon happening to inland lakes globally, is affecting biogeochemical cycling in the lake (Yousavich et al., 2026). All measurements were conducted between 2020 and 2023, with samples collected aboard a small boat during five sampling campaigns (January 2020, August 2020, August 2021, September 2021, and November 2023). Water column samples were collected with either a Niskin bottle (2020-2022) or a peristaltic pump (2023). Water column physiochemical parameters (e.g., conductivity, temperature) and dissolved oxygen content were measured with a YSI EXO2 multi-parameter sonde.

Keyword(s):

Geochemistry; Lake; sulfate reduction rates

Related to:

Yousavich, David; Diamond, Charles; Hung, Caroline; Vetushko, George; Peng, Xuefeng; Lyons, Timothy W; Treude, Tina (2026): Biogeochemical processes in a rapidly drying inland lake, the Salton Sea. Journal of Great Lakes Research, 102884, https://doi.org/10.1016/j.jglr.2026.102884

Funding:

National Aeronautics and Space Administration (NASA), grant/award no. 80NSSC21K0594 : Alternative Earths – How to Build and Sustain a Detectable Biosphere

Coverage:

Median Latitude: 33.266545 * Median Longitude: -115.748000 * South-bound Latitude: 33.260000 * West-bound Longitude: -115.960000 * North-bound Latitude: 33.440000 * East-bound Longitude: -115.740000

Date/Time Start: 2020-01-08T00:00:00 * Date/Time End: 2023-11-16T00:00:00

Minimum DEPTH, water: 0.2 m * Maximum DEPTH, water: 10.6 m

Event(s):

SaltonSea_Aug20 * Latitude: 33.260000 * Longitude: -115.740000 * Date/Time: 2020-08-11T00:00:00

SaltonSea_Aug21 * Latitude: 33.260000 * Longitude: -115.740000 * Date/Time: 2021-08-24T00:00:00

SaltonSea_Jan20 * Latitude: 33.260000 * Longitude: -115.740000 * Date/Time: 2020-01-08T00:00:00

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Yousavich, David
2	Sample code/label	Sample label		Yousavich, David
3	LATITUDE	Latitude		Yousavich, David		Geocode
4	LONGITUDE	Longitude		Yousavich, David		Geocode
5	DEPTH, water	Depth water	m	Yousavich, David	Calculated average/mean values	Geocode
6	Depth, water, top/minimum	Depth water top	m	Yousavich, David
7	Depth, water, bottom/maximum	Depth water bot	m	Yousavich, David
8	DATE/TIME	Date/Time		Yousavich, David		Geocode
9	Nitrate	[NO3]-	µmol/l	Yousavich, David	Spectrophotometer Shimadzu UV-1800
10	Nitrite	[NO2]-	µmol/l	Yousavich, David	Spectrophotometer Shimadzu UV-1800
11	Ammonium	[NH4]+	µmol/l	Yousavich, David	Spectrophotometer Shimadzu UV-1800
12	Phosphate	[PO4]3-	µmol/l	Yousavich, David	Spectrophotometer Shimadzu UV-1800
13	Iron 2+	Fe2+	µmol/l	Yousavich, David	Spectrophotometer Shimadzu UV-1800
14	Sulfide	S2-	µmol/l	Yousavich, David	Spectrophotometer Shimadzu UV-1800
15	Sulfate	[SO4]2-	mmol/l	Yousavich, David	Ion chromatograph, Metrohm, Compact IC 761
16	Chloride	Cl-	mmol/l	Yousavich, David	Ion chromatograph, Metrohm, Compact IC 761
17	Methane	CH4	nmol/l	Yousavich, David	Gas chromatograph, GC-2014, Shimadzu; coupled with Haysep D column and a flame ionization detector
18	Conductivity	Cond	µS/cm	Diamond, Charles	Multiparameter probe, YSI Xylem Inc., EXO2
19	Oxidation reduction (RedOx) potential	Eh	mV	Diamond, Charles	Multiparameter probe, YSI Xylem Inc., EXO2
20	Chlorophyll a	Chl a	RFU	Diamond, Charles	Multiparameter probe, YSI Xylem Inc., EXO2
21	Total dissolved solids	TDS	mg/l	Diamond, Charles	Multiparameter probe, YSI Xylem Inc., EXO2
22	Turbidity (Formazin nephelometric unit)	Turbidity	FNU	Diamond, Charles	Multiparameter probe, YSI Xylem Inc., EXO2
23	Oxygen, dissolved	DO	µmol/l	Diamond, Charles	Multiparameter probe, YSI Xylem Inc., EXO2
24	Temperature, water	Temp	°C	Diamond, Charles	Multiparameter probe, YSI Xylem Inc., EXO2
25	pH	pH		Diamond, Charles	Multiparameter probe, YSI Xylem Inc., EXO2

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

514 data points

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