Julian Alex Heilman
Julian Heilman is a Geographer in the Arizona Water Science Center, Tucson Office
Science and Products
Managing salinity in Upper Colorado River Basin streams: Selecting catchments for sediment control efforts using watershed characteristics and random forests models
Elevated concentrations of dissolved-solids (salinity) including calcium, sodium, sulfate, and chloride, among others, in the Colorado River cause substantial problems for its water users. Previous efforts to reduce dissolved solids in upper Colorado River basin (UCRB) streams often focused on reducing suspended-sediment transport to streams, but few studies have investigated the relationship betw
Authors
Fred D. Tillman, David W. Anning, Julian A. Heilman, Susan G. Buto, Matthew P. Miller
Potential depletion of surface water in the Colorado River and agricultural drains by groundwater pumping in the Parker-Palo Verde-Cibola area, Arizona and California
Water use along the lower Colorado River is allocated as “consumptive use,” which is defined to be the amount of water diverted from the river minus the amount that returns to the river. Diversions of water from the river include surface water in canals and water removed from the river by pumping wells in the aquifer connected to the river. A complication in accounting for water pumped by wells oc
Authors
Stanley A. Leake, Sandra J. Owen-Joyce, Julian A. Heilman
Desert basins of the Southwest
Ground water is among the Nation’s most important natural resources. It provides drinking water to urban and rural communities, supports irrigation and industry, sustains the flow of streams and rivers, and maintains riparian and wetland ecosystems. In many areas of the Nation, the future sustainability of ground-water resources is at risk from overuse and contamination. Because ground-water syste
Authors
Stanley A. Leake, Alice D. Konieczki, Julie A.H. Rees
Water quality in the central Arizona basins, Arizona, 1995-98
The water quality in rivers and streams and in selected aquifers in central Arizona basins in Arizona is described and illustrated. Major ions, nitrogen and other nutrients, and pesticides and some of their breakdown compounds were analyzed in both surface and ground water. Biological communities that included fish, invertebrates, and algae, were described in relation to stream water quality. Vola
Authors
Gail E. Cordy, Dorinda J. Gellenbeck, Joseph B. Gebler, David W. Anning, Alissa L. Coes, Robert J. Edmonds, Julie A.H. Rees, H. W. Sanger
Converting contour-line data into data sets for a multilayered aquifer using a geographic information system
Data sets that define the altitude of the base of basin-fill units in the west Salt River Valley were developed for the National Water-Quality Assessment program using a geographic information system. Data that define the land surface and the base of each basin-fill unit within a multilayered aquifer were compiled into a series of raster-data lattices. The lattice of each basin-fill layer was cons
Authors
Julia A. Rees
Water-quality assessment of the Central Arizona Basins, Arizona and northern Mexico – Environmental setting and overview of water quality
The Central Arizona Basins study area in central and southern Arizona and northern Mexico is one of 60 study units that are part of the U.S. Geological Survey's National Water-Quality Assessment program. The purpose of this report is to describe the physical, chemical, and environmental characteristics that may affect water quality in the Central Arizona Basins study area and present an overview o
Authors
Gail E. Cordy, Julie A. Rees, Robert J. Edmonds, Joseph B. Gebler, Laurie Wirt, Dorinda J. Gellenbeck, David W. Anning
Science and Products
- Publications
Managing salinity in Upper Colorado River Basin streams: Selecting catchments for sediment control efforts using watershed characteristics and random forests models
Elevated concentrations of dissolved-solids (salinity) including calcium, sodium, sulfate, and chloride, among others, in the Colorado River cause substantial problems for its water users. Previous efforts to reduce dissolved solids in upper Colorado River basin (UCRB) streams often focused on reducing suspended-sediment transport to streams, but few studies have investigated the relationship betwAuthorsFred D. Tillman, David W. Anning, Julian A. Heilman, Susan G. Buto, Matthew P. MillerPotential depletion of surface water in the Colorado River and agricultural drains by groundwater pumping in the Parker-Palo Verde-Cibola area, Arizona and California
Water use along the lower Colorado River is allocated as “consumptive use,” which is defined to be the amount of water diverted from the river minus the amount that returns to the river. Diversions of water from the river include surface water in canals and water removed from the river by pumping wells in the aquifer connected to the river. A complication in accounting for water pumped by wells ocAuthorsStanley A. Leake, Sandra J. Owen-Joyce, Julian A. HeilmanDesert basins of the Southwest
Ground water is among the Nation’s most important natural resources. It provides drinking water to urban and rural communities, supports irrigation and industry, sustains the flow of streams and rivers, and maintains riparian and wetland ecosystems. In many areas of the Nation, the future sustainability of ground-water resources is at risk from overuse and contamination. Because ground-water systeAuthorsStanley A. Leake, Alice D. Konieczki, Julie A.H. ReesWater quality in the central Arizona basins, Arizona, 1995-98
The water quality in rivers and streams and in selected aquifers in central Arizona basins in Arizona is described and illustrated. Major ions, nitrogen and other nutrients, and pesticides and some of their breakdown compounds were analyzed in both surface and ground water. Biological communities that included fish, invertebrates, and algae, were described in relation to stream water quality. VolaAuthorsGail E. Cordy, Dorinda J. Gellenbeck, Joseph B. Gebler, David W. Anning, Alissa L. Coes, Robert J. Edmonds, Julie A.H. Rees, H. W. SangerConverting contour-line data into data sets for a multilayered aquifer using a geographic information system
Data sets that define the altitude of the base of basin-fill units in the west Salt River Valley were developed for the National Water-Quality Assessment program using a geographic information system. Data that define the land surface and the base of each basin-fill unit within a multilayered aquifer were compiled into a series of raster-data lattices. The lattice of each basin-fill layer was consAuthorsJulia A. ReesWater-quality assessment of the Central Arizona Basins, Arizona and northern Mexico – Environmental setting and overview of water quality
The Central Arizona Basins study area in central and southern Arizona and northern Mexico is one of 60 study units that are part of the U.S. Geological Survey's National Water-Quality Assessment program. The purpose of this report is to describe the physical, chemical, and environmental characteristics that may affect water quality in the Central Arizona Basins study area and present an overview oAuthorsGail E. Cordy, Julie A. Rees, Robert J. Edmonds, Joseph B. Gebler, Laurie Wirt, Dorinda J. Gellenbeck, David W. Anning