David M Wolock, Ph.D.
David Wolock is a Supervisory Hydrologist with the USGS Water Resources Mission Area.
Science and Products
Filter Total Items: 13
No Result Found
Filter Total Items: 134
Sensitivity of water resources in the Delaware River basin to climate variability and change Sensitivity of water resources in the Delaware River basin to climate variability and change
Because of the greenhouse effect, projected increases in atmospheric carbon dioxide levels might cause global warming, which in turn could result in changes in precipitation patterns and evapotranspiration and in increases in sea level. This report describes the greenhouse effect; discusses the problems and uncertainties associated with the detection, prediction, and effects of climate...
Authors
Mark A. Ayers, David M. Wolock, Gregory J. McCabe, Lauren E. Hay, Gary D. Tasker
Sensitivity of water resources in the Delaware River basin to climate variability and change Sensitivity of water resources in the Delaware River basin to climate variability and change
Because of the "greenhouse effect," projected increases in atmospheric carbon dioxide levels might cause global warming, which in turn could result in changes in precipitation patterns and evapotranspiration and in increases in sea level. This report describes the greenhouse effect; discusses the problems and uncertainties associated with the detection, prediction, and effects of...
Authors
Mark A. Ayers, David M. Wolock, Gregory J. McCabe, Lauren E. Hay, Gary D. Tasker
Simulating the variable-source-area concept of streamflow generation with the watershed model TOPMODEL Simulating the variable-source-area concept of streamflow generation with the watershed model TOPMODEL
This report describes TOPMODEL, which is a physically based watershed model that simulates the variable-source-area concept of streamflow generation. The report describes the theoretical background, model equations, methods to determine parameter values, Fortran computer code, and an example interactive simulation. Using TOPMODEL requires specification of soils and topographic parameters
Authors
D.M. Wolock
Use of weather types to disaggregate general circulation model predictions Use of weather types to disaggregate general circulation model predictions
General circulation models (GCMs) simulate climatic conditions with a grid cell resolution on the order of 100,000 km2. This resolution is inadequate to assess the effects of climatic change on water resources at a regional scale. A method has been developed that uses weather-type analysis as a tool to spatially disaggregate GCM predictions to make them useful for water resource studies...
Authors
L.E. Hay, G. J. McCabe, D.M. Wolock, M. A. Ayers
Effects of climatic change and climatic variability on the Thornthwaite moisture index in the Delaware River basin Effects of climatic change and climatic variability on the Thornthwaite moisture index in the Delaware River basin
The Thornthwaite moisture index is useful as an indicator of the supply of water in an area relative to the demand under prevailing climatic conditions. This study examines the effects of long-term changes in climate (temperature and precipitation) on the Thornthwaite moisture index in the Delaware River basin. Temperature and precipitation estimates for doubled-CO2 conditions derived...
Authors
G. J. McCabe, D.M. Wolock
Detectability of the effects of a hypothetical temperature increase on the Thornthwaite moisture index Detectability of the effects of a hypothetical temperature increase on the Thornthwaite moisture index
Climatic changes that result from increasing concentrations of atmospheric carbon dioxide may affect the availability of water for vegetation, groundwater recharge, runoff, and human consumption. Most studies of the effects of climatic change on water resources focus on changes in mean characteristics of hydrologic variables and do not consider the effects of these changes amid natural...
Authors
G. J. McCabe, D.M. Wolock
Science and Products
Filter Total Items: 13
No Result Found
Filter Total Items: 134
Sensitivity of water resources in the Delaware River basin to climate variability and change Sensitivity of water resources in the Delaware River basin to climate variability and change
Because of the greenhouse effect, projected increases in atmospheric carbon dioxide levels might cause global warming, which in turn could result in changes in precipitation patterns and evapotranspiration and in increases in sea level. This report describes the greenhouse effect; discusses the problems and uncertainties associated with the detection, prediction, and effects of climate...
Authors
Mark A. Ayers, David M. Wolock, Gregory J. McCabe, Lauren E. Hay, Gary D. Tasker
Sensitivity of water resources in the Delaware River basin to climate variability and change Sensitivity of water resources in the Delaware River basin to climate variability and change
Because of the "greenhouse effect," projected increases in atmospheric carbon dioxide levels might cause global warming, which in turn could result in changes in precipitation patterns and evapotranspiration and in increases in sea level. This report describes the greenhouse effect; discusses the problems and uncertainties associated with the detection, prediction, and effects of...
Authors
Mark A. Ayers, David M. Wolock, Gregory J. McCabe, Lauren E. Hay, Gary D. Tasker
Simulating the variable-source-area concept of streamflow generation with the watershed model TOPMODEL Simulating the variable-source-area concept of streamflow generation with the watershed model TOPMODEL
This report describes TOPMODEL, which is a physically based watershed model that simulates the variable-source-area concept of streamflow generation. The report describes the theoretical background, model equations, methods to determine parameter values, Fortran computer code, and an example interactive simulation. Using TOPMODEL requires specification of soils and topographic parameters
Authors
D.M. Wolock
Use of weather types to disaggregate general circulation model predictions Use of weather types to disaggregate general circulation model predictions
General circulation models (GCMs) simulate climatic conditions with a grid cell resolution on the order of 100,000 km2. This resolution is inadequate to assess the effects of climatic change on water resources at a regional scale. A method has been developed that uses weather-type analysis as a tool to spatially disaggregate GCM predictions to make them useful for water resource studies...
Authors
L.E. Hay, G. J. McCabe, D.M. Wolock, M. A. Ayers
Effects of climatic change and climatic variability on the Thornthwaite moisture index in the Delaware River basin Effects of climatic change and climatic variability on the Thornthwaite moisture index in the Delaware River basin
The Thornthwaite moisture index is useful as an indicator of the supply of water in an area relative to the demand under prevailing climatic conditions. This study examines the effects of long-term changes in climate (temperature and precipitation) on the Thornthwaite moisture index in the Delaware River basin. Temperature and precipitation estimates for doubled-CO2 conditions derived...
Authors
G. J. McCabe, D.M. Wolock
Detectability of the effects of a hypothetical temperature increase on the Thornthwaite moisture index Detectability of the effects of a hypothetical temperature increase on the Thornthwaite moisture index
Climatic changes that result from increasing concentrations of atmospheric carbon dioxide may affect the availability of water for vegetation, groundwater recharge, runoff, and human consumption. Most studies of the effects of climatic change on water resources focus on changes in mean characteristics of hydrologic variables and do not consider the effects of these changes amid natural...
Authors
G. J. McCabe, D.M. Wolock