Gregory McCabe (Former Employee)
Science and Products
Filter Total Items: 85
Precipitation and the occurrence of lyme disease in the Northeastern United States
The occurrence of Lyme disease is a growing concern in the United States, and various studies have been performed to understand the factors related to Lyme disease occurrence. In the United States, Lyme disease has occurred most frequently in the northeastern United States. Positive correlations between the number of cases of Lyme disease reported in the northeastern United States during the 1992-
Authors
G.J. McCabe, J.E. Bunnell
The health of glaciers: Recent changes in glacier regime
Glacier wastage has been pervasive during the last century; small glaciers and those in marginal environments are disappearing, large mid-latitude glaciers are shrinking slightly, and arctic glaciers are warming. Net mass balances during the last 40 years are predominately negative and both winter and summer balances (accumulation and ablation) and mass turnover are increasing, especially after 19
Authors
M. F. Meier, M.B. Dyurgerov, G.J. McCabe
Web-based distribution of geo-scientific models
[No abstract available]
Authors
S.L. Markstrom, G. McCabe, O. David
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 decreases in a
Authors
G.J. McCabe, D. M. Wolock
Spatial variability in water-balance model performance in the conterminous United States
A monthly water-balance (WB) model was tested in 44 river basins from diverse physiographic and climatic regions across the conterminous United States (U.S.). The WB model includes the concepts of climatic water supply and climatic water demand, seasonality in climatic water supply and demand, and soil-moisture storage. Exhaustive search techniques were employed to determine the optimal set of pre
Authors
Lauren E. Hay, Gregory J. McCabe
Effects of ENSO on weather-type frequencies and properties at New Orleans, Louisiana, USA
Examination of historical climate records indicates a significant relation between the El Nino/Southern Oscillation (ENSO) and seasonal temperature and precipitation in Louisiana. In this study, a 40 yr record of twice daily (06:00 and 15:00 h local time) weather types are used to study the effects of ENSO variability on the local climate at New Orleans, Louisiana. Tropical Pacific sea-surface tem
Authors
G.J. McCabe, R.A. Muller
Trends and temperature sensitivity of moisture conditions in the conterminous United States
Observed (1895-1999) trends in climatic moisture conditions in the conterminous United States (US) characterized by (1) annual precipitation minus annual potential evapotranspiration (PMPE), (2) annual surplus (water that eventually becomes streamflow), and (3) annual deficit (the amount of water that must be supplied by irrigation to grow vegetation at an optimum rate) are examined. The sensitivi
Authors
G.J. McCabe, D. M. Wolock
Primary modes and predictability of year-to-year snowpack variations in the Western United States from teleconnections with Pacific Ocean climate
Snowpack, as measured on 1 April, is the primary source of warm-season streamflow for most of the western United States and thus represents an important source of water supply. An understanding of climate factors that influence the variability of this water supply and thus its predictability is important for water resource management. In this study, principal component analysis is used to identify
Authors
G.J. McCabe, M. D. Dettinger
Historical effects of El Nino and La Nina events on the seasonal evolution of the montane snowpack in the Columbia and Colorado River Basins
Snow‐water equivalent (SWE) data measured at several hundred montane sites in the western United States are used to examine the historic effects of El Nino and La Nina events on seasonal snowpack evolution in the major subbasins in the Columbia and Colorado River systems. Results are used to predict annual runoff. In the Columbia River Basin, there is a general tendency for decreased SWE during El
Authors
Martyn P. Clark, Mark C. Serreze, Gregory J. McCabe
Trends in Northern Hemisphere surface cyclone frequency and intensity
One of the hypothesized effects of global warming from increasing concentrations of greenhouse gases is a change in the frequency and/or intensity of extratropical cyclones. In this study, winter frequencies and intensities of extratropical cyclones in the Northern Hemisphere for the period 1959-97 are examined to determine if identifiable trends are occurring. Results indicate a statistically sig
Authors
G.J. McCabe, M.P. Clark, Mark C. Serreze
Winter-spring 2001 United States streamflow probabilities based on anticipated neutral ENSO conditions and recent NPO status
An analysis of historical floods and seasonal streamflows during years with neutral El NiñoSouthern Oscillation (ENSO) conditions in the tropical Pacific and “negative” states of the North Pacific Oscillation (NPO) in the North Pacific—like those expected next year—indicates that (1) chances of having maximum-daily flows next year that are near the longterm averages in many rivers are enhanced, es
Authors
M. D. Dettinger, D.R. Cayan, G. J. McCabe, K.T. Redmond
Differences in topographic characteristics computed from 100- and 1000-m resolution digital elevation model data
Topographic characteristics computed from 100- and 1000-m resolution digital elevation model (DEM) data are compared for 50 locations representing varied terrain in the conterminous USA. The topographic characteristics are three parameters used extensively in hydrological research and modelling - slope (S), specific catchment area (A(s)) and a wetness index computed as the logarithm of the specifi
Authors
D. M. Wolock, G.J. McCabe
Science and Products
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Filter Total Items: 85
Precipitation and the occurrence of lyme disease in the Northeastern United States
The occurrence of Lyme disease is a growing concern in the United States, and various studies have been performed to understand the factors related to Lyme disease occurrence. In the United States, Lyme disease has occurred most frequently in the northeastern United States. Positive correlations between the number of cases of Lyme disease reported in the northeastern United States during the 1992-AuthorsG.J. McCabe, J.E. BunnellThe health of glaciers: Recent changes in glacier regime
Glacier wastage has been pervasive during the last century; small glaciers and those in marginal environments are disappearing, large mid-latitude glaciers are shrinking slightly, and arctic glaciers are warming. Net mass balances during the last 40 years are predominately negative and both winter and summer balances (accumulation and ablation) and mass turnover are increasing, especially after 19AuthorsM. F. Meier, M.B. Dyurgerov, G.J. McCabeWeb-based distribution of geo-scientific models
[No abstract available]AuthorsS.L. Markstrom, G. McCabe, O. DavidA 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 decreases in aAuthorsG.J. McCabe, D. M. WolockSpatial variability in water-balance model performance in the conterminous United States
A monthly water-balance (WB) model was tested in 44 river basins from diverse physiographic and climatic regions across the conterminous United States (U.S.). The WB model includes the concepts of climatic water supply and climatic water demand, seasonality in climatic water supply and demand, and soil-moisture storage. Exhaustive search techniques were employed to determine the optimal set of preAuthorsLauren E. Hay, Gregory J. McCabeEffects of ENSO on weather-type frequencies and properties at New Orleans, Louisiana, USA
Examination of historical climate records indicates a significant relation between the El Nino/Southern Oscillation (ENSO) and seasonal temperature and precipitation in Louisiana. In this study, a 40 yr record of twice daily (06:00 and 15:00 h local time) weather types are used to study the effects of ENSO variability on the local climate at New Orleans, Louisiana. Tropical Pacific sea-surface temAuthorsG.J. McCabe, R.A. MullerTrends and temperature sensitivity of moisture conditions in the conterminous United States
Observed (1895-1999) trends in climatic moisture conditions in the conterminous United States (US) characterized by (1) annual precipitation minus annual potential evapotranspiration (PMPE), (2) annual surplus (water that eventually becomes streamflow), and (3) annual deficit (the amount of water that must be supplied by irrigation to grow vegetation at an optimum rate) are examined. The sensitiviAuthorsG.J. McCabe, D. M. WolockPrimary modes and predictability of year-to-year snowpack variations in the Western United States from teleconnections with Pacific Ocean climate
Snowpack, as measured on 1 April, is the primary source of warm-season streamflow for most of the western United States and thus represents an important source of water supply. An understanding of climate factors that influence the variability of this water supply and thus its predictability is important for water resource management. In this study, principal component analysis is used to identifyAuthorsG.J. McCabe, M. D. DettingerHistorical effects of El Nino and La Nina events on the seasonal evolution of the montane snowpack in the Columbia and Colorado River Basins
Snow‐water equivalent (SWE) data measured at several hundred montane sites in the western United States are used to examine the historic effects of El Nino and La Nina events on seasonal snowpack evolution in the major subbasins in the Columbia and Colorado River systems. Results are used to predict annual runoff. In the Columbia River Basin, there is a general tendency for decreased SWE during ElAuthorsMartyn P. Clark, Mark C. Serreze, Gregory J. McCabeTrends in Northern Hemisphere surface cyclone frequency and intensity
One of the hypothesized effects of global warming from increasing concentrations of greenhouse gases is a change in the frequency and/or intensity of extratropical cyclones. In this study, winter frequencies and intensities of extratropical cyclones in the Northern Hemisphere for the period 1959-97 are examined to determine if identifiable trends are occurring. Results indicate a statistically sigAuthorsG.J. McCabe, M.P. Clark, Mark C. SerrezeWinter-spring 2001 United States streamflow probabilities based on anticipated neutral ENSO conditions and recent NPO status
An analysis of historical floods and seasonal streamflows during years with neutral El NiñoSouthern Oscillation (ENSO) conditions in the tropical Pacific and “negative” states of the North Pacific Oscillation (NPO) in the North Pacific—like those expected next year—indicates that (1) chances of having maximum-daily flows next year that are near the longterm averages in many rivers are enhanced, esAuthorsM. D. Dettinger, D.R. Cayan, G. J. McCabe, K.T. RedmondDifferences in topographic characteristics computed from 100- and 1000-m resolution digital elevation model data
Topographic characteristics computed from 100- and 1000-m resolution digital elevation model (DEM) data are compared for 50 locations representing varied terrain in the conterminous USA. The topographic characteristics are three parameters used extensively in hydrological research and modelling - slope (S), specific catchment area (A(s)) and a wetness index computed as the logarithm of the specifiAuthorsD. M. Wolock, G.J. McCabe - Science
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