Steven Hostetler, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 82
Implementation and evaluation of a monthly water balance model over the US on an 800 m grid Implementation and evaluation of a monthly water balance model over the US on an 800 m grid
We simulate the 1950–2010 water balance for the conterminous U.S. (CONUS) with a monthly water balance model (MWBM) using the 800 m Parameter-elevation Regression on Independent Slopes Model (PRISM) data set as model input. We employed observed snow and streamflow data sets to guide modification of the snow and potential evapotranspiration components in the default model and to evaluate...
Authors
Steven W. Hostetler, Jay R. Alder
Final Laurentide ice-sheet deglaciation and Holocene climate-sea level change Final Laurentide ice-sheet deglaciation and Holocene climate-sea level change
Despite elevated summer insolation forcing during the early Holocene, global ice sheets retained nearly half of their volume from the Last Glacial Maximum, as indicated by deglacial records of global mean sea level (GMSL). Partitioning the GMSL rise among potential sources requires accurate dating of ice-sheet extent to estimate ice-sheet volume. Here, we date the final retreat of the...
Authors
David J. Ullman, Anders E. Carlson, Steven W. Hostetler, Peter U. Clark, Joshua Cuzzone, Glenn A. Milne, Kelsey Winsor, Marc A. Caffee
Web based visualization of large climate data sets Web based visualization of large climate data sets
We have implemented the USGS National Climate Change Viewer (NCCV), which is an easy-to-use web application that displays future projections from global climate models over the United States at the state, county and watershed scales. We incorporate the NASA NEX-DCP30 statistically downscaled temperature and precipitation for 30 global climate models being used in the Fifth Assessment...
Authors
Jay R. Alder, Steven W. Hostetler
Global climate simulations at 3000-year intervals for the last 21 000 years with the GENMOM coupled atmosphere–ocean model Global climate simulations at 3000-year intervals for the last 21 000 years with the GENMOM coupled atmosphere–ocean model
We apply GENMOM, a coupled atmosphere–ocean climate model, to simulate eight equilibrium time slices at 3000-year intervals for the past 21 000 years forced by changes in Earth–Sun geometry, atmospheric greenhouse gases (GHGs), continental ice sheets, and sea level. Simulated global cooling during the Last Glacial Maximum (LGM) is 3.8 ◦C and the rate of post-glacial warming is in overall...
Authors
Jay R. Alder, Steven W. Hostetler
Early-Holocene warming in Beringia and its mediation by sea-level and vegetation changes Early-Holocene warming in Beringia and its mediation by sea-level and vegetation changes
Arctic land-cover changes induced by recent global climate change (e.g., expansion of woody vegetation into tundra and effects of permafrost degradation) are expected to generate further feedbacks to the climate system. Past changes can be used to assess our understanding of feedback mechanisms through a combination of process modeling and paleo-observations. The subcontinental region of...
Authors
P. J. Bartlein, M. E. Edwards, Steven W. Hostetler, Sarah Shafer, P. M. Anderson, L. B Brubaker, A. V Lozhkin
Paleoclimate Paleoclimate
As host to one of the major continental-scale ice sheets, and with considerable spatial variability of climate related to its physiography and location, North America has experienced a wide range of climates over time. The aim of this chapter is to review the history of those climate variations, focusing in particular on the continental-scale climatic variations between the Last Glacial...
Authors
Patrick J. Bartlein, Steven W. Hostetler, Jay R. Alder
Science and Products
Filter Total Items: 82
Implementation and evaluation of a monthly water balance model over the US on an 800 m grid Implementation and evaluation of a monthly water balance model over the US on an 800 m grid
We simulate the 1950–2010 water balance for the conterminous U.S. (CONUS) with a monthly water balance model (MWBM) using the 800 m Parameter-elevation Regression on Independent Slopes Model (PRISM) data set as model input. We employed observed snow and streamflow data sets to guide modification of the snow and potential evapotranspiration components in the default model and to evaluate...
Authors
Steven W. Hostetler, Jay R. Alder
Final Laurentide ice-sheet deglaciation and Holocene climate-sea level change Final Laurentide ice-sheet deglaciation and Holocene climate-sea level change
Despite elevated summer insolation forcing during the early Holocene, global ice sheets retained nearly half of their volume from the Last Glacial Maximum, as indicated by deglacial records of global mean sea level (GMSL). Partitioning the GMSL rise among potential sources requires accurate dating of ice-sheet extent to estimate ice-sheet volume. Here, we date the final retreat of the...
Authors
David J. Ullman, Anders E. Carlson, Steven W. Hostetler, Peter U. Clark, Joshua Cuzzone, Glenn A. Milne, Kelsey Winsor, Marc A. Caffee
Web based visualization of large climate data sets Web based visualization of large climate data sets
We have implemented the USGS National Climate Change Viewer (NCCV), which is an easy-to-use web application that displays future projections from global climate models over the United States at the state, county and watershed scales. We incorporate the NASA NEX-DCP30 statistically downscaled temperature and precipitation for 30 global climate models being used in the Fifth Assessment...
Authors
Jay R. Alder, Steven W. Hostetler
Global climate simulations at 3000-year intervals for the last 21 000 years with the GENMOM coupled atmosphere–ocean model Global climate simulations at 3000-year intervals for the last 21 000 years with the GENMOM coupled atmosphere–ocean model
We apply GENMOM, a coupled atmosphere–ocean climate model, to simulate eight equilibrium time slices at 3000-year intervals for the past 21 000 years forced by changes in Earth–Sun geometry, atmospheric greenhouse gases (GHGs), continental ice sheets, and sea level. Simulated global cooling during the Last Glacial Maximum (LGM) is 3.8 ◦C and the rate of post-glacial warming is in overall...
Authors
Jay R. Alder, Steven W. Hostetler
Early-Holocene warming in Beringia and its mediation by sea-level and vegetation changes Early-Holocene warming in Beringia and its mediation by sea-level and vegetation changes
Arctic land-cover changes induced by recent global climate change (e.g., expansion of woody vegetation into tundra and effects of permafrost degradation) are expected to generate further feedbacks to the climate system. Past changes can be used to assess our understanding of feedback mechanisms through a combination of process modeling and paleo-observations. The subcontinental region of...
Authors
P. J. Bartlein, M. E. Edwards, Steven W. Hostetler, Sarah Shafer, P. M. Anderson, L. B Brubaker, A. V Lozhkin
Paleoclimate Paleoclimate
As host to one of the major continental-scale ice sheets, and with considerable spatial variability of climate related to its physiography and location, North America has experienced a wide range of climates over time. The aim of this chapter is to review the history of those climate variations, focusing in particular on the continental-scale climatic variations between the Last Glacial...
Authors
Patrick J. Bartlein, Steven W. Hostetler, Jay R. Alder