Gregory McCabe (Former Employee)
Science and Products
Filter Total Items: 85
General circulation model simulations of winter and summer sea-level pressures over North America
Temporal variability of synoptic-scale circulation is a dominant factor in regional temporal climate variations. In the midlatitudes, temporal variability of synoptic-scale circulation has been found to be related to temporal variations in regional air temperature and precipitation. General circulation model (GCM) simulations of long-term changes in synoptic-scale circulation may be useful in asse
Authors
G. J. McCabe, D.R. Legates
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. The metho
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
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 from three g
Authors
G. J. McCabe, D. M. Wolock
National water summary 1988–89 — Hydrologic events and floods and droughts
National Water Summary 1988-89 - Hydrologic Events and Floods and Droughts documents the occurrence in the United States, Puerto Rico, and the U.S. Virgin Islands of two types of extreme hydrologic events floods and droughts on the basis of analysis of stream-discharge data. This report details, for the first time, the areal extent of the most notable floods and droughts in each State, portrays th
By
Water Resources Mission Area, Pennsylvania Water Science Center, Oklahoma-Texas Water Science Center, Kansas Water Science Center, Utah Water Science Center, Dakota Water Science Center, Central Midwest Water Science Center, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center
Uncertainty in climate change and drought
A series of projections of climate change were applied to a watershed model of the Delaware River basin to identify sources of uncertainty in predicting effects of climate change on drought in the basin as defined by New York City reservoir contents. The watershed model is a calibrated, monthly time-step water-balance model that incorporates the operation of reservoirs and diversion canals, and ac
Authors
Gregory J. McCabe, David M. Wolock, Gary D. Tasker, Mark A. Ayers
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 climatic va
Authors
G. J. McCabe, D. M. Wolock
United States Geological Survey Yearbook, fiscal year 1989
The fiscal year 1989 Yearbook summarizes the activities of the U.S. Geological Survey in response to its scientific and regulatory missions.
Authors
Dallas L. Peck, John A. Kelmelis, Charles W. Boning, Richard Z. Poore, Eugene C. Napier, Ernest B. Brunson, K. Lea Ginnodo, G. Gray Tappan, Dean J. Tyler, Donald G. Moore, C.R. Baskin, Charlotte H. Goodson, Wendy R. Hassibe, Betty B. Brodes
Simulated effects of climatic change on runoff and drought in the Delaware River Basin
Various projection of climatic change were applied to watershed models of the Delaware River basin. Simulations indicate that a warming could reduce annual runoff by as much as 25 percent if current precipitation patterns continue. Simulations indicate that the largest changes in basin drought are in response to relatively small changes in precipitation. Basin drought was less sensitive to increas
Authors
Mark A. Ayers, Gary D. Tasker, David M. Wolock, Gregory J. McCabe, Lauren E. Hay
A conceptual weather-type classification procedure for the Philadelphia, Pennsylvania, area
A simple method of weather-type classification, based on a conceptual model of pressure systems that pass through the Philadelphia, Pennsylvania, area, has been developed. The only inputs required for the procedure are daily mean wind direction and cloud cover, which are used to index the relative position of pressure systems and fronts to Philadelphia.Daily mean wind-direction and cloud-cover dat
Authors
Gregory J. McCabe
Effect of climate change on watershed runoff
This paper examines forecasts of changes in watershed runoff in the Delaware River basin that result from a range of predicted effects of increased atmospheric carbon dioxide (CO2) on future precipitation, temperature, and stomatal resistance of plants. A deterministic hydrologic model, TOPMODEL, was driven with stochastic inputs of temperature and precipitation to derive the forecasts. Results in
Authors
D. M. Wolock, M. A. Ayers, L.E. Hay, G. J. McCabe
Simulation of precipitation by weather-type analysis
A new approach that uses weather-type analysis as a basis for stochastic precipitation modeling was developed and tested for Philadelphia, Pennsylvania. The weather types permit the identification of weather conditions associated with varying frequencies, intensities, and amounts of precipitation. Weather-type frequencies were used to stochastically simulate precipitation for Philadelphia and to p
Authors
G. J. McCabe, L.E. Hay, L.S. Kalkstein, M. A. Ayers, D. M. Wolock
Hydrologic effects of climate change in the Delaware River basin
The Thornthwaite water balance and combinations of temperature and precipitation changes representing climate change were used to estimate changes in seasonal soil-moisture and runoff in the Delaware River basin. Winter warming may cause a greater proportion of precipitation in the northern part of the basin to fall as rain, which may increase winter runoff and decrease spring and summer runoff. E
Authors
Gregory J. McCabe, Mark A. Ayers
Science and Products
Filter Total Items: 85
General circulation model simulations of winter and summer sea-level pressures over North America
Temporal variability of synoptic-scale circulation is a dominant factor in regional temporal climate variations. In the midlatitudes, temporal variability of synoptic-scale circulation has been found to be related to temporal variations in regional air temperature and precipitation. General circulation model (GCM) simulations of long-term changes in synoptic-scale circulation may be useful in asse
Authors
G. J. McCabe, D.R. Legates
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. The metho
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
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 from three g
Authors
G. J. McCabe, D. M. Wolock
National water summary 1988–89 — Hydrologic events and floods and droughts
National Water Summary 1988-89 - Hydrologic Events and Floods and Droughts documents the occurrence in the United States, Puerto Rico, and the U.S. Virgin Islands of two types of extreme hydrologic events floods and droughts on the basis of analysis of stream-discharge data. This report details, for the first time, the areal extent of the most notable floods and droughts in each State, portrays th
By
Water Resources Mission Area, Pennsylvania Water Science Center, Oklahoma-Texas Water Science Center, Kansas Water Science Center, Utah Water Science Center, Dakota Water Science Center, Central Midwest Water Science Center, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center
Uncertainty in climate change and drought
A series of projections of climate change were applied to a watershed model of the Delaware River basin to identify sources of uncertainty in predicting effects of climate change on drought in the basin as defined by New York City reservoir contents. The watershed model is a calibrated, monthly time-step water-balance model that incorporates the operation of reservoirs and diversion canals, and ac
Authors
Gregory J. McCabe, David M. Wolock, Gary D. Tasker, Mark A. Ayers
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 climatic va
Authors
G. J. McCabe, D. M. Wolock
United States Geological Survey Yearbook, fiscal year 1989
The fiscal year 1989 Yearbook summarizes the activities of the U.S. Geological Survey in response to its scientific and regulatory missions.
Authors
Dallas L. Peck, John A. Kelmelis, Charles W. Boning, Richard Z. Poore, Eugene C. Napier, Ernest B. Brunson, K. Lea Ginnodo, G. Gray Tappan, Dean J. Tyler, Donald G. Moore, C.R. Baskin, Charlotte H. Goodson, Wendy R. Hassibe, Betty B. Brodes
Simulated effects of climatic change on runoff and drought in the Delaware River Basin
Various projection of climatic change were applied to watershed models of the Delaware River basin. Simulations indicate that a warming could reduce annual runoff by as much as 25 percent if current precipitation patterns continue. Simulations indicate that the largest changes in basin drought are in response to relatively small changes in precipitation. Basin drought was less sensitive to increas
Authors
Mark A. Ayers, Gary D. Tasker, David M. Wolock, Gregory J. McCabe, Lauren E. Hay
A conceptual weather-type classification procedure for the Philadelphia, Pennsylvania, area
A simple method of weather-type classification, based on a conceptual model of pressure systems that pass through the Philadelphia, Pennsylvania, area, has been developed. The only inputs required for the procedure are daily mean wind direction and cloud cover, which are used to index the relative position of pressure systems and fronts to Philadelphia.Daily mean wind-direction and cloud-cover dat
Authors
Gregory J. McCabe
Effect of climate change on watershed runoff
This paper examines forecasts of changes in watershed runoff in the Delaware River basin that result from a range of predicted effects of increased atmospheric carbon dioxide (CO2) on future precipitation, temperature, and stomatal resistance of plants. A deterministic hydrologic model, TOPMODEL, was driven with stochastic inputs of temperature and precipitation to derive the forecasts. Results in
Authors
D. M. Wolock, M. A. Ayers, L.E. Hay, G. J. McCabe
Simulation of precipitation by weather-type analysis
A new approach that uses weather-type analysis as a basis for stochastic precipitation modeling was developed and tested for Philadelphia, Pennsylvania. The weather types permit the identification of weather conditions associated with varying frequencies, intensities, and amounts of precipitation. Weather-type frequencies were used to stochastically simulate precipitation for Philadelphia and to p
Authors
G. J. McCabe, L.E. Hay, L.S. Kalkstein, M. A. Ayers, D. M. Wolock
Hydrologic effects of climate change in the Delaware River basin
The Thornthwaite water balance and combinations of temperature and precipitation changes representing climate change were used to estimate changes in seasonal soil-moisture and runoff in the Delaware River basin. Winter warming may cause a greater proportion of precipitation in the northern part of the basin to fall as rain, which may increase winter runoff and decrease spring and summer runoff. E
Authors
Gregory J. McCabe, Mark A. Ayers