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Person

Julian A Heilman

Geographer

Arizona Water Science Center

Email: jahr@usgs.gov
Office Phone: 520-670-3331
Fax: 520-670-5592
ORCID: 0000-0002-2987-4057

Location
520 N. Park Ave
Tucson , AZ 85719
US

Supervisor: Jay R Cederberg
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This USGS Data Release represents Soil-Water Balance (SWB) groundwater infiltration modeling results for the alluvial basins in Arizona. The data release was produced in compliance with 'open data' requirements as a way to make the scientific data associated with USGS research efforts and publications available to the public. This dataset comprises SWB model results for the alluvial basins in Arizona summarized on a monthly basis, and there are 4 separate datafiles associated with this Data Release: SWB model results for the alluvial basins in Arizona of actual evapotranspiration (AET), summarized on a monthly basis from 1950 through 2099 SWB model results for the alluvial basins in Arizona of potential evapotranspiration...
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This USGS Data Release represents Soil-Water Balance (SWB) groundwater infiltration modeling results for the Lower Colorado River Basin (LCRB). The data release was produced in compliance with 'open data' requirements as a way to make the scientific data associated with USGS research efforts and publications available to the public. This dataset comprises SWB model results for the LCRB within the United States (US) summarized on a monthly basis, and there are 4 separate datafiles associated with this Data Release: SWB model results for the LCRB in the US of actual evapotranspiration (AET), summarized on a monthly basis from 1950 through 2099 SWB model results for the LCRB in the US of potential evapotranspiration...
This USGS Data Release represents water and sediment quality data collected in the Grand Canyon region of northern Arizona. This dataset comprises water quality results from spring and stream sites in Grand Canyon that were sampled through a cooperative effort by U.S. National Park Service (NPS) personnel during 2016 and 2017. NPS personnel collected water samples from spring and stream sites in Grand Canyon. Water samples were filtered using a syringe and 0.45 µm filter and preserved with nitric acid. Filtered and preserved samples were analyzed by the USGS Geology, Geophysics, and Geochemistry Science Center Laboratory for a suite of elements using inductively coupled plasma - mass spectrometry (ICP-MS) methods...
Categories: Data
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Controlled source audio-frequency magnetotellurics (CSAMT) data were collected in the Big Chino Valley and Paulden areas, Yavapai County, Arizona, to better understand the hydrogeology of the area. CSAMT data provide vertical cross-section (profile) data about the resistivity of the subsurface, which may be related to lithologic boundaries and (or) grain-size distribution in the subsurface. CSAMT involves transmitting a current at various frequencies in one location, and measuring resistivity differences between electrodes spaced along a receiver line several kilometers from the transmitter. Data were collected using a GGT-30 transmitter and GDP32-II receiver (Zonge international. Inc.). Data processing and inversions...
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This USGS Data Release represents Soil-Water Balance (SWB) groundwater infiltration modeling results for the Grand Canyon region. The data release was produced in compliance with 'open data' requirements as a way to make the scientific data associated with USGS research efforts and publications available to the public. This dataset comprises SWB model results for the Grand Canyon region summarized on a monthly basis, and there are 4 separate datafiles associated with this Data Release: SWB model results for the Grand Canyon region of actual evapotranspiration (AET), summarized on a monthly basis from 1950 through 2099 SWB model results for the Grand Canyon region of potential evapotranspiration (PET), summarized...
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