Steven Hostetler, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 82
Potential role of vegetation feedback in the climate sensitivity of high-latitude regions: A case study at 6000 years B.P.
Previous climate model simulations have shown that the configuration of the Earth's orbit during the early to mid-Holocene (approximately 10–5 kyr) can account for the generally warmer-than-present conditions experienced by the high latitudes of the northern hemisphere. New simulations for 6 kyr with two atmospheric/mixed-layer ocean models (Community Climate Model, version 1, CCMl, and Global ENv
Authors
J.-E. Kutzbach, P. J. Bartlein, J.A. Foley, S. P. Harrison, Steven W.. Hostetler, Z. Liu, I.C. Prentice, T. Webb
Hydrological and thermal response of lakes to climate: Description and modeling
Lake systems continually respond to climatic conditions that vary over broad scales of space and time. The spatial distribution of lakes on the Earth’s surface is indicative of long-term patterns of atmospheric circulation, and the annual cycle of climate over lake basins is reflected in seasonal change in the size and temperature of lakes. Lake size is determined by the balance of water inputs an
Authors
Steven W. Hostetler
Two-year simulation of the Great Lakes region with a coupled modeling system
In this paper, we report on an experiment aimed at evaluating the feasibility of the application of our coupled regional climate modeling system to long-term climate simulations over the Great Lakes region. The simulation analyzed covers a continuous 24-month period beginning 1 September 1990 and extending to 1 September 1992.Many aspects of this simulation agreed well with observations. Compared
Authors
G. T. Bates, S. W. Hostetler, F. Giorgi
Effects of a 2 x CO2 climate on two large lake systems: Pyramid Lake, Nevada, and Yellowstone Lake, Wyoming
The possible effects of trace-gas induced climatic changes on Pyramid and Yellowstone Lakes are assessed using a model of lake temperature. The model is driven by 312 years of hourly meteorological data obtained directly from the output of double-CO2 experiments (2 × CO2) conducted with a regional climate model nested in a general circulation model. The regional atmospheric model is the climate ve
Authors
S. W. Hostetler, Mary L. Giorgino
Stable isotopes of oxygen and hydrogen in the Truckee River–Pyramid Lake surface‐water system. 2. A predictive model of δ18O and 182H in Pyramid Lake
A physically based model of variations in δ18O and δ2H in Pyramid Lake is presented. For inputs, the model uses measurements of liquid water inflows and outflows and their associated isotopic compositions and a set of meteorological data (radiative fluxes, air temperature, relative humidity, and windspeed). The model simulates change of lake volume, thermal and isotopic stratification, evaporation
Authors
S. W. Hostetler, L. V. Benson
Simulation of long-term thermal characteristics of three Estonian lakes
A one-dimensional surface energy-balance lake model, coupled to a thermodynamic model of lake ice, is used to simulate variations in the temperature of and evaporation from three Estonian lakes: Karujärv, Viljandi and Kirjaku. The model is driven by daily climate data, derived by cubic-spline interpolation from monthly mean data, and was run for periods of 8 years (Kirjaku) up to 30 years (Viljand
Authors
J. Vassiljev, S.P. Harrison, Steven W. Hostetler, Patrick J Bartlein
Analysis of the surface hydrology in a regional climate model
This paper discusses the surface hydrology of a multi‐year simulation of present day climate over the United States (US) conducted with a regional climate model (RegCM) nested within a general circulation model (GCM). The RegCM, which is run with a 60 km gridpoint spacing is interactively coupled with a state‐of‐the‐art surface physics package that includes full surface hydrology calculations (the
Authors
F. Giorgi, Steven W. Hostetler, Christine Shields Brodeur
Hydrologic and atmospheric models: The (continuing) problem of discordant scales - An Editorial Comment
[No abstract available]
Authors
S. W. Hostetler
Lake-atmosphere feedbacks associated with paleolakes Bonneville and Lahontan
A high-resolution, regional climate model nested within a general circulation model was used to study the interactions between the atmosphere and the large Pleistocene lakes in the Great Basin of the United States. Simulations for January and July 18,000 years ago indicate that moisture provided by synoptic-scale atmospheric circulation features was the primary component of the hydrologic budgets
Authors
S. W. Hostetler, F. Giorgi, G. T. Bates, P. J. Bartlein
Modeling the effects of climate change on the thermal structure of Yellowstone Lake
No abstract available.
Authors
Steven W. Hostetler, John Varley
Use of output from high‐resolution atmospheric models in landscape‐scale hydrologic models: An assessment
In this paper we investigate the feasibility of coupling regional climate models (RCMs) with landscape‐scale hydrologic models (LSHMs) for studies of the effects of climate on hydrologic systems. The RCM used is the National Center for Atmospheric Research/Pennsylvania State University mesoscale model (MM4). Output from two year‐round simulations (1983 and 1988) over the western United States is u
Authors
S. W. Hostetler, F. Giorgi
Toward the simulation of the effects of the Great Lakes on regional climate
This paper describes a set of numerical experiments aimed at evaluating the feasibility of applying a version of the National Center for Atmospheric Research-Pennsylvania State University regional model (MM4) to regional climate simulation over the Great Lakes Basin. The objectives of this initial modeling investigation are 1) to examine whether the MM4 can capture the primary forcing exerted by t
Authors
Gary T. Bates, F. Giorgi, Steven W. Hostetler
Science and Products
Filter Total Items: 82
Potential role of vegetation feedback in the climate sensitivity of high-latitude regions: A case study at 6000 years B.P.
Previous climate model simulations have shown that the configuration of the Earth's orbit during the early to mid-Holocene (approximately 10–5 kyr) can account for the generally warmer-than-present conditions experienced by the high latitudes of the northern hemisphere. New simulations for 6 kyr with two atmospheric/mixed-layer ocean models (Community Climate Model, version 1, CCMl, and Global ENv
Authors
J.-E. Kutzbach, P. J. Bartlein, J.A. Foley, S. P. Harrison, Steven W.. Hostetler, Z. Liu, I.C. Prentice, T. Webb
Hydrological and thermal response of lakes to climate: Description and modeling
Lake systems continually respond to climatic conditions that vary over broad scales of space and time. The spatial distribution of lakes on the Earth’s surface is indicative of long-term patterns of atmospheric circulation, and the annual cycle of climate over lake basins is reflected in seasonal change in the size and temperature of lakes. Lake size is determined by the balance of water inputs an
Authors
Steven W. Hostetler
Two-year simulation of the Great Lakes region with a coupled modeling system
In this paper, we report on an experiment aimed at evaluating the feasibility of the application of our coupled regional climate modeling system to long-term climate simulations over the Great Lakes region. The simulation analyzed covers a continuous 24-month period beginning 1 September 1990 and extending to 1 September 1992.Many aspects of this simulation agreed well with observations. Compared
Authors
G. T. Bates, S. W. Hostetler, F. Giorgi
Effects of a 2 x CO2 climate on two large lake systems: Pyramid Lake, Nevada, and Yellowstone Lake, Wyoming
The possible effects of trace-gas induced climatic changes on Pyramid and Yellowstone Lakes are assessed using a model of lake temperature. The model is driven by 312 years of hourly meteorological data obtained directly from the output of double-CO2 experiments (2 × CO2) conducted with a regional climate model nested in a general circulation model. The regional atmospheric model is the climate ve
Authors
S. W. Hostetler, Mary L. Giorgino
Stable isotopes of oxygen and hydrogen in the Truckee River–Pyramid Lake surface‐water system. 2. A predictive model of δ18O and 182H in Pyramid Lake
A physically based model of variations in δ18O and δ2H in Pyramid Lake is presented. For inputs, the model uses measurements of liquid water inflows and outflows and their associated isotopic compositions and a set of meteorological data (radiative fluxes, air temperature, relative humidity, and windspeed). The model simulates change of lake volume, thermal and isotopic stratification, evaporation
Authors
S. W. Hostetler, L. V. Benson
Simulation of long-term thermal characteristics of three Estonian lakes
A one-dimensional surface energy-balance lake model, coupled to a thermodynamic model of lake ice, is used to simulate variations in the temperature of and evaporation from three Estonian lakes: Karujärv, Viljandi and Kirjaku. The model is driven by daily climate data, derived by cubic-spline interpolation from monthly mean data, and was run for periods of 8 years (Kirjaku) up to 30 years (Viljand
Authors
J. Vassiljev, S.P. Harrison, Steven W. Hostetler, Patrick J Bartlein
Analysis of the surface hydrology in a regional climate model
This paper discusses the surface hydrology of a multi‐year simulation of present day climate over the United States (US) conducted with a regional climate model (RegCM) nested within a general circulation model (GCM). The RegCM, which is run with a 60 km gridpoint spacing is interactively coupled with a state‐of‐the‐art surface physics package that includes full surface hydrology calculations (the
Authors
F. Giorgi, Steven W. Hostetler, Christine Shields Brodeur
Hydrologic and atmospheric models: The (continuing) problem of discordant scales - An Editorial Comment
[No abstract available]
Authors
S. W. Hostetler
Lake-atmosphere feedbacks associated with paleolakes Bonneville and Lahontan
A high-resolution, regional climate model nested within a general circulation model was used to study the interactions between the atmosphere and the large Pleistocene lakes in the Great Basin of the United States. Simulations for January and July 18,000 years ago indicate that moisture provided by synoptic-scale atmospheric circulation features was the primary component of the hydrologic budgets
Authors
S. W. Hostetler, F. Giorgi, G. T. Bates, P. J. Bartlein
Modeling the effects of climate change on the thermal structure of Yellowstone Lake
No abstract available.
Authors
Steven W. Hostetler, John Varley
Use of output from high‐resolution atmospheric models in landscape‐scale hydrologic models: An assessment
In this paper we investigate the feasibility of coupling regional climate models (RCMs) with landscape‐scale hydrologic models (LSHMs) for studies of the effects of climate on hydrologic systems. The RCM used is the National Center for Atmospheric Research/Pennsylvania State University mesoscale model (MM4). Output from two year‐round simulations (1983 and 1988) over the western United States is u
Authors
S. W. Hostetler, F. Giorgi
Toward the simulation of the effects of the Great Lakes on regional climate
This paper describes a set of numerical experiments aimed at evaluating the feasibility of applying a version of the National Center for Atmospheric Research-Pennsylvania State University regional model (MM4) to regional climate simulation over the Great Lakes Basin. The objectives of this initial modeling investigation are 1) to examine whether the MM4 can capture the primary forcing exerted by t
Authors
Gary T. Bates, F. Giorgi, Steven W. Hostetler