Gregory E Schwarz
Gregory Schwarz is an Economist with the USGS Water Resources Mission Area.
Science and Products
Filter Total Items: 67
Socioeconomic impacts of climate change on U.S. water supplies
A greenhouse warming would have major effects on water supplies and demands. A framework for examining the socioeconomic impacts associated with changes in the long-term availability of water is developed and applied to the hydrologic implications of the Canadian and British Hadley2 general circulation models (GCMs) for the 18 water resource regions in the conterminous United States. The climate p
Authors
K.D. Frederick, G. E. Schwarz
Regional interpretation of water-quality monitoring data
We describe a method for using spatially referenced regressions of contaminant transport on watershed attributes (SPARROW) in regional water-quality assessment. The method is designed to reduce the problems of data interpretation caused by sparse sampling, network bias, and basin heterogeneity. The regression equation relates measured transport rates in streams to spatially referenced descriptors
Authors
Richard A. Smith, Gregory E. Schwarz, Richard B. Alexander
Estimates of future water demand for selected water-service areas in the upper Duck River basin, central Tennessee
Estimates of future water demand were determined for selected water-service areas in the upper Duck River basin in central Tennessee through the year 2050. The Duck River is the principal source of publicly-supplied water in the study area providing a total of 15.6 million gallons per day (Mgal/d) in 1993 to the cities of Columbia, Lewisburg, Shelbyville, part of southern Williamson County, and se
Authors
S. S. Hutson, G. E. Schwarz
State Soil Geographic (STATSGO) Data Base for the Conterminous United States
USSOILS is an Arc 7.0 coverage containing hydrology-relevant information
for 10,498 map units covering the entire conterminous United States.
The coverage was compiled from individual State coverages contained in
the October 1994 State Soil Geographic (STATSGO) Data Base produced on
CD-ROM. The geo-dataset USSOILS.PAT relates (on the basis of a map unit
identifier) the 10,498 map units to 78
Authors
Gregory E. Schwarz, R. B. Alexander
Regional estimates of the amount of U.S. agricultural land located in watersheds with poor water quality
No abstract available.
Authors
Richard A. Smith, Gregory E. Schwarz, Richard B. Alexander
Correction of stream quality trends for the effects of laboratory measurement bias
We present a statistical model relating measurements of water quality to associated errors in laboratory methods. Estimation of the model allows us to correct trends in water quality for long-term and short-term variations in laboratory measurement errors. An illustration of the bias correction method for a large national set of stream water quality and quality assurance data shows that reductions
Authors
Richard B. Alexander, Richard A. Smith, Gregory E. Schwarz
The supply and demand for pollution control: Evidence from wastewater treatment
This paper analyzes the determination of pollution control from wastewater treatment plants as an economic decision facing local or regional regulators. Pollution control is measured by plant design effluent concentration levels and is fully endogenous in a supply- and-demand model of treatment choice. On the supply side, plant costs are a function of the design treatment level of the plant, and o
Authors
V.D. McConnell, G. E. Schwarz
Science and Products
Filter Total Items: 67
Socioeconomic impacts of climate change on U.S. water supplies
A greenhouse warming would have major effects on water supplies and demands. A framework for examining the socioeconomic impacts associated with changes in the long-term availability of water is developed and applied to the hydrologic implications of the Canadian and British Hadley2 general circulation models (GCMs) for the 18 water resource regions in the conterminous United States. The climate p
Authors
K.D. Frederick, G. E. Schwarz
Regional interpretation of water-quality monitoring data
We describe a method for using spatially referenced regressions of contaminant transport on watershed attributes (SPARROW) in regional water-quality assessment. The method is designed to reduce the problems of data interpretation caused by sparse sampling, network bias, and basin heterogeneity. The regression equation relates measured transport rates in streams to spatially referenced descriptors
Authors
Richard A. Smith, Gregory E. Schwarz, Richard B. Alexander
Estimates of future water demand for selected water-service areas in the upper Duck River basin, central Tennessee
Estimates of future water demand were determined for selected water-service areas in the upper Duck River basin in central Tennessee through the year 2050. The Duck River is the principal source of publicly-supplied water in the study area providing a total of 15.6 million gallons per day (Mgal/d) in 1993 to the cities of Columbia, Lewisburg, Shelbyville, part of southern Williamson County, and se
Authors
S. S. Hutson, G. E. Schwarz
State Soil Geographic (STATSGO) Data Base for the Conterminous United States
USSOILS is an Arc 7.0 coverage containing hydrology-relevant information
for 10,498 map units covering the entire conterminous United States.
The coverage was compiled from individual State coverages contained in
the October 1994 State Soil Geographic (STATSGO) Data Base produced on
CD-ROM. The geo-dataset USSOILS.PAT relates (on the basis of a map unit
identifier) the 10,498 map units to 78
Authors
Gregory E. Schwarz, R. B. Alexander
Regional estimates of the amount of U.S. agricultural land located in watersheds with poor water quality
No abstract available.
Authors
Richard A. Smith, Gregory E. Schwarz, Richard B. Alexander
Correction of stream quality trends for the effects of laboratory measurement bias
We present a statistical model relating measurements of water quality to associated errors in laboratory methods. Estimation of the model allows us to correct trends in water quality for long-term and short-term variations in laboratory measurement errors. An illustration of the bias correction method for a large national set of stream water quality and quality assurance data shows that reductions
Authors
Richard B. Alexander, Richard A. Smith, Gregory E. Schwarz
The supply and demand for pollution control: Evidence from wastewater treatment
This paper analyzes the determination of pollution control from wastewater treatment plants as an economic decision facing local or regional regulators. Pollution control is measured by plant design effluent concentration levels and is fully endogenous in a supply- and-demand model of treatment choice. On the supply side, plant costs are a function of the design treatment level of the plant, and o
Authors
V.D. McConnell, G. E. Schwarz