David M Wolock, Ph.D.
David Wolock is a Supervisory Hydrologist with the USGS Water Resources Mission Area.
Science and Products
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Infiltration-Excess Overland Flow Estimated by TOPMODEL for the Conterminous United States Infiltration-Excess Overland Flow Estimated by TOPMODEL for the Conterminous United States
This 5-kilometer resolution raster (grid) dataset for the conterminous United States represents the average percentage of infiltration-excess overland flow in total streamflow estimated by the watershed model TOPMODEL. Infiltration-excess overland flow is simulated in TOPMODEL as precipitation that exceeds the infiltration capacity of the soil and enters the stream channel.
Authors
David M. Wolock
Hydrologic landscape regions of the United States Hydrologic landscape regions of the United States
Hydrologic landscape regions (HLRs) in the United States were delineated by using geographic information system (GIS) tools and statistical methods including principal components and cluster analyses. The GIS and statistical analyses were applied to land-surface form, geologic texture (permeability of the soil and bedrock), and climate variables that describe the physical and climatic...
Authors
David M. Wolock
Saturation overland flow estimated from TOPMODEL for the conterminous United States Saturation overland flow estimated from TOPMODEL for the conterminous United States
This 5-kilometer resolution raster (grid) dataset for the conterminous United States represents the average percentage of saturation overland flow in total streamflow estimated by the watershed model TOPMODEL. Saturation overland flow is simulated in TOPMODEL as precipitation that falls on saturated land-surface areas and enters the stream channel. TOPMODEL was applied to 5- by 5...
Authors
David M. Wolock
Flow characteristics at U.S. Geological Survey streamgages in the conterminous United States Flow characteristics at U.S. Geological Survey streamgages in the conterminous United States
This dataset represents point locations and flow characteristics for current (as of November 20, 2001) and historical U.S. Geological Survey (USGS) streamgages in the conterminous United States. The flow characteristics were computed from the daily streamflow data recorded at each streamgage for the period of record. The attributes associated with each streamgage include: Station number...
Authors
David Wolock
Estimates of median flows for streams on the Kansas surface water register Estimates of median flows for streams on the Kansas surface water register
The Kansas State Legislature, by enacting Kansas Statute KSA 82a-2001 et. seq., mandated the criteria for determining which Kansas stream segments would be subject to classification by the State. One criterion for the selection as a classified stream segment is based on the statistic of median flow being equal to or greater than 1 cubic foot per second. As specified by KSA 82a-2001 et...
Authors
Charles A. Perry, David M. Wolock, Joshua C. Artman
A step increase in streamflow in the conterminous United States A step increase in streamflow in the conterminous United States
Annual minimum, median, and maximum daily streamflow for 400 sites in the conterminous United States (U.S.), measured during 1941-1999, were examined to identify the temporal and spatial character of changes in streamflow statistics. Results indicate a noticeable increase in annual minimum and median daily streamflow around 1970, and a less significant mixed pattern of increases and...
Authors
G.J. McCabe, D.M. Wolock
Science and Products
Filter Total Items: 13
No Result Found
Filter Total Items: 134
Infiltration-Excess Overland Flow Estimated by TOPMODEL for the Conterminous United States Infiltration-Excess Overland Flow Estimated by TOPMODEL for the Conterminous United States
This 5-kilometer resolution raster (grid) dataset for the conterminous United States represents the average percentage of infiltration-excess overland flow in total streamflow estimated by the watershed model TOPMODEL. Infiltration-excess overland flow is simulated in TOPMODEL as precipitation that exceeds the infiltration capacity of the soil and enters the stream channel.
Authors
David M. Wolock
Hydrologic landscape regions of the United States Hydrologic landscape regions of the United States
Hydrologic landscape regions (HLRs) in the United States were delineated by using geographic information system (GIS) tools and statistical methods including principal components and cluster analyses. The GIS and statistical analyses were applied to land-surface form, geologic texture (permeability of the soil and bedrock), and climate variables that describe the physical and climatic...
Authors
David M. Wolock
Saturation overland flow estimated from TOPMODEL for the conterminous United States Saturation overland flow estimated from TOPMODEL for the conterminous United States
This 5-kilometer resolution raster (grid) dataset for the conterminous United States represents the average percentage of saturation overland flow in total streamflow estimated by the watershed model TOPMODEL. Saturation overland flow is simulated in TOPMODEL as precipitation that falls on saturated land-surface areas and enters the stream channel. TOPMODEL was applied to 5- by 5...
Authors
David M. Wolock
Flow characteristics at U.S. Geological Survey streamgages in the conterminous United States Flow characteristics at U.S. Geological Survey streamgages in the conterminous United States
This dataset represents point locations and flow characteristics for current (as of November 20, 2001) and historical U.S. Geological Survey (USGS) streamgages in the conterminous United States. The flow characteristics were computed from the daily streamflow data recorded at each streamgage for the period of record. The attributes associated with each streamgage include: Station number...
Authors
David Wolock
Estimates of median flows for streams on the Kansas surface water register Estimates of median flows for streams on the Kansas surface water register
The Kansas State Legislature, by enacting Kansas Statute KSA 82a-2001 et. seq., mandated the criteria for determining which Kansas stream segments would be subject to classification by the State. One criterion for the selection as a classified stream segment is based on the statistic of median flow being equal to or greater than 1 cubic foot per second. As specified by KSA 82a-2001 et...
Authors
Charles A. Perry, David M. Wolock, Joshua C. Artman
A step increase in streamflow in the conterminous United States A step increase in streamflow in the conterminous United States
Annual minimum, median, and maximum daily streamflow for 400 sites in the conterminous United States (U.S.), measured during 1941-1999, were examined to identify the temporal and spatial character of changes in streamflow statistics. Results indicate a noticeable increase in annual minimum and median daily streamflow around 1970, and a less significant mixed pattern of increases and...
Authors
G.J. McCabe, D.M. Wolock