Arizona Water Science Center

Data and Tools

Filter Total Items: 22
Date published: December 10, 2018

Supplemental discrete dissolved-solids and specific conductance data and monthly mean dissolved-solids load data in the lower Colorado River, 1928-2016

Monthly Mean Dissolved-Solids Concentration and Monthly Mean Dissolved-Solids Load Data Flow weighted monthly mean dissolved-solids concentrations (mg/L) data and monthly mean dissolved-solids load data from 1928-2016 were computed by USGS using raw data from the Bureau of Reclamation. These data were computed by USGS for all of the seven sites (listed below). Colorado River above...

Date published: December 10, 2018

Overview Metadata for the Regression Model Data, Estimated Discharge Data, and Calculated Flux and Yields Data at Tumacácori National Historical Park and the Upper Santa Cruz River, Arizona (1994-2017)

This data release contains three different datasets that were used in the Scientific Investigations Report: Spatial and Temporal Distribution of Bacterial Indicators and Microbial Source Tracking within Tumacácori National Historical Park and the Upper Santa Cruz River, Arizona, 2015-16. These datasets contain regression model data, estimated discharge data, and calculated flux and...

Date published: February 6, 2018

USGS Surface-water data for Arizona (NWIS-Web)

Access to current conditions, historical observations, daily data, statistics, peak-flow data, and field measurements for streamflow gaging stations in Arizona.

Date published: January 1, 2018

High-Water Mark Survey of July 10, 2018, Flood at I-10 Frontage Rd at Twin Peaks Rd, Marana, AZ

A train derailment occurred in Marana, Arizona, on July 10, 2018. Runoff from a severe thunderstorm was flowing over the tracks at the time and may have contributed to the derailment. At the request of the Pima County Regional Flood Control District, USGS collected high-water marks for the flood event upstream from the derailment area.

Date published: January 1, 2018

Code for use within Matlab for computing the damping and lag time of responses to cyclical infiltration in a layered vadose zone in Central Valley, California

This data release contains code for computing the filtering properties of cyclical infiltration in a layered vadose zone in Central Valley, California. The code for computing the filtering is described in a manuscript that is under review at Vadose Zone Journal. The updated data contained in this data release are the code to compute the filtering properties of the vadose zone....

Date published: January 1, 2018

Overview Metadata for the Data used in te Conceptual and Numerical Model of the Colorado River (1990-2016)

This data release contains six different datasets that were used in the report SIR 2018-5108. These datasets contain discharge data, discrete dissolved-solids data, quality-control discrete dissolved data, and computed mean dissolved solids data that were collected at various locations between the Hoover Dam and the Imperial Dam. Study Sites: Site 1: Colorado River below Hoover Dam Site 2:...

Date published: January 1, 2018

San Pedro River Aquifer Data Release - Transboundary Aquifer Assessment Program (TAAP)

This is a release of data presented in the report "Binational Study of the Transboundary San Pedro Aquifer", Callegary and others, 2016: Callegary, J.B., Minjárez Sosa, I., Tapia Villaseñor, E.M., dos Santos, P., Monreal Saavedra, R., Grijalva Noriega, F.J., Huth, A.K., Gray, F., Scott, C.A., Megdal, S.B., Oroz Ramos, L.A., Rangel Medina, M., Leenhouts, J.M., 2016,...

Date published: January 1, 2018

Overview metadata of the supplemental data used for the Assessment of Hydrocarbon Concentrations in Southern Lake Powell (2016-2017)

This data release contains five datasets that were used in a Scientific Investigations Report to be published in 2018. These datasets are continuous temperature data, temperature profiles data, SPMD environmental concentration data in picograms per liter of water, SPMD environmental concentration data in nanograms per SPMD, and SPMD quality-control concentration data. SPMD Environmental...

Date published: May 1, 2017

UCRB SWB Model Results - 1981-2014 Climate Data - 800m, 4km, and 12km spatial scales

This USGS Data Release represents Soil-Water Balance (SWB) groundwater recharge modeling results for the Upper Colorado River Basin (UCRB). The data release was produced in compliance with 'open data' requirements as a way to make the scientific products associated with USGS research efforts and publications available to the public. This dataset comprises SWB model results from runs using...

Date published: January 1, 2017

Geochemistry of Sediment and Associated Leachates from Samples near the Old Yuma Mine, AZ

This data set includes analysis of 38 sediment samples collected near the Old Yuma Mine. The sediment samples were collected from tailings, waste rock, stream sediment, and background locations. All samples were analyzed by a total digestion method, some by the USEPA 3050 method, and some were leached by the USEPA 1312 method.

Date published: October 1, 2016

Network-adjusted gravity data from the 2014 Minute 319 Pulse Flow in the Colorado River Delta

The dataset consists of final gravity values and gravity differences. Gravity values were obtained from network adjustment of relative gravity and absolute gravity measurements.

Date published: October 1, 2016

Relative-gravity differences from the 2014 Minute 319 Pulse Flow in the Colorado River Delta

Data are drift-corrected relative gravity differences between stations. Drift correction was carried out by modeling drift as a continuous function of time using polynomial or locally-weighted scatterplot smooth (lowess) curves. The process and software for carrying out drift correction is described in the USGS Arizona Water Science Center QA/QC plan for relative gravity data collection.