paf_390_799 ZexuanXuLawrence Berkeley National Laboratoryzexuanxu@lbl.govhttps://orcid.org/0000-0001-9534-7370 SergiMolinsLawrence Berkeley National Laboratorysmolins@lbl.gov https://orcid.org/0000-0001-7675-3218 DipankarDwivediLawrence Berkeley National Laboratoryddwivedi@lbl.gov https://orcid.org/0000-0003-1788-1900 IlhanÖzgen-XianLawrence Berkeley National Laboratoryiozgen@lbl.gov CarlSteefelLawrence Berkeley National Laboratorycisteefel@lbl.gov https://orcid.org/0000-0002-2802-611X U.S. DOE > Office of Science > Biological and Environmental Research (BER) http://dx.doi.org/10.13039/100006206 fundingOrganization 2022 This dataset is generated using the ATS (Advanced Terrestrial Simulator) model at Copper Creek, Colorado, the largest catchment in the East River watershed. ATS is an integrated hydrology and reactive transport model to simulate the Concentration-Discharge (C-Q) relationship, and is used to quantify the geochemical export and understand how watersheds respond to climate disturbances. Key hydrogeochemical variables, including discharge, precipitation, evapotranspiration, and geochemical concentrations, were simulated and output at a daily frequency at the Copper Creek outlet. A group of hydrology and geochemical model variables over the spatial domain are output at a bi-monthly frequency. The model used 1-km resolution daily frequency Daymet meteorological forcing, and mineral composition from previous studies. The simulations are performed on NERSC. The datasets include the input files for running the ATS (Advanced Terrestrial Simulator) simulation, including the mesh file, input script and geochemical model files. The output files from the ATS (Advanced Terrestrial Simulator) are the daily time-series discharge and geochemical concentration simulated at the outlet of Copper Creek, and the bi-monthly spatial output over the simulation domain. geochemical reactive transport model Copper Creek Advanced Terrestrial SimulatorCATEGORICAL:NONEAnionsCationsGroundwater LevelRiver stage/dischargeSoil MoistureVARIABLE:NONE

Xu et al., Understanding the hydrogeochemical response of a mountainous watershed using integrated surface-subsurface flow and reactive transport modeling, Water Resource Research, under reviewAdditional metadata on specific locations within the watershed are provided in the following related data package:Varadharajan C ; Kakalia Z ; Burrus M ; O'Ryan D ; Alper E ; Banfield J ; Berkelhammer M ; Beutler C ; Brodie E ; Brown W ; Carbone M S ; Carroll R ; Christianson D ; Chou C ; Crystal-Ornelas R ; Chadwick K D ; Christensen J ; Dafflon B ; Elbashandy H ; Enquist B J ; Fox P ; Gochis D ; Henderson M ; Johnson D ; Kueppers L ; Matheus Carnevali P ; Newman A ; Powell T ; Singha K ; Sorensen P ; Sprenger M ; Tokunaga T ; Versteeg R ; Wilkins M ; Williams K ; Worsham M ; Wong C ; Wu Y ; Agarwal D (2022): Location Identifiers, Metadata, and Map for Field Measurements at the East River Watershed, Colorado, USA (Version 3.0). Watershed Function SFA, ESS-DIVE repository. Dataset. doi:10.15485/1660962

This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. 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 -107.05-106.8839.03438.88 2016-10-012019-09-30 ZexuanXuLawrence Berkeley National Laboratoryzexuanxu@lbl.govhttps://orcid.org/0000-0001-9534-7370 The data is generated using the ATS (Advanced Terrestrial Simulator) model on NERSC supercomputer system. Eoin Brodie Lawrence Berkeley National Laboratory elbrodie@lbl.gov Principal Investigator DOE:DEAC0205CH11231 (Lawrence Berkeley National Laboratory) input_20220619T030648Z_001.zipapplication/zipoutput_20220619T030706Z_002.zipapplication/zip