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2016 Floodplain Geochemistry from the East River Watershed, Colorado

Creators: Patricia Fox, Dipankar Dwivedi, Bhavna AroraORCID, Peter Nico
Year: 2023
DOI: 10.15485/2001034
License: CC-BY 4.0
Location: The East River (ER) is a snow‐dominated, headwater basin of the Upper Colorado River Basin (UCRB) located in the western United States. The ER is the designated testbed of Lawrence Berkeley National Laboratory's Watershed Function Scientific Focus Area (WFSFA). Through WFSFA, observational networks have been established to measure stream discharge and precipitation chemistry. The ER is considered representative of many snow‐dominated headwaters of the Rocky Mountains. The study domain encompasses nearly 85 square km, a 1.4‐km vertical drop in elevation (4,120 to 2,760 m) and pristine alpine, subalpine, montane, and riparian ecosystems. The ER contains high‐energy mountain streams to low‐energy meandering floodplains and is eroding primarily into the Cretaceous, carbon‐rich, marine shale of the Mancos Formation. Additional metadata on specific locations within the watershed are provided in the following related data package: Varadharajan C. et al. (2022) doi:10.15485/1660962
Temporal extent: 2016-07-18 to 2016-11-01
Bounding box: 38.880°N to 39.034°N, -107.050°W to -106.880°W
Publisher: ESS_DIVE
Tags: groundwater, cations, metals, pumphouse, ESS-DIVE File Level Metadata Reporting Format, CATEGORICAL:NONE Groundwater Level, Cations, Patriculate/Dissolved Inorganic Carbon, Patriculate/Dissolved Organic Carbon, Dissolved Oxygen (DO), Alpine & Subalpine Ecology, Hydrology & Watersheds, Snow & Ice, Groundwater, Geology & Tectonics, Weather & Atmospheric Science, Gunnison Basin, Research Programs

Description

This dataset includes groundwater geochemistry data from floodplain piezometers collected as a part of the Watershed Function Scientific Focus Area (SFA) located in the Upper Colorado River Basin. The data were collected in order to investigate the role of hyporheic exchange and other river corridor processes on riverine export of solutes. Floodplain piezometers installed in several meanders (Meander C, Meander D, and Meander O) in the vicinity of the Pumphouse were sampled at several dates in 2016. Data includes in-field measurements (pH, electrical conductivity, oxidation reduction potential, dissolved oxygen, dissolved Fe(II), dissolved sulfide, and groundwater level) along with laboratory measurements (dissolved inorganic carbon, dissolved organic carbon, metals and major cations). Five files are included in this dataset, including: sample locations and depths in a csv file (metadata.csv), aqueous geochemistry data in a csv file, analytical detection limits in a csv file, a file-level metadata (flmd.csv) file, and a data dictionary (dd.csv) file. Data that was below the detection limit is reported as one half of the detection limit and missing data is listed as "-9999".

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