Doubled CO2 Experiments With the Global Change Research Center Two-Dimensional Statistical Dynamical Climate Model
The zonally averaged response of the Global Change Research Center two-dimensional statistical dynamical climate model (GCRC 2-D SDCM) to a doubling of atmospheric carbon dioxide (350 parts per million by volume (ppmv) to 700 ppmv) is reported. The model solves the two-dimensional primitive equation...
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ftportlandstate:oai:pdxscholar.library.pdx.edu:phy_fac-1013 2023-05-15T18:18:31+02:00 Doubled CO2 Experiments With the Global Change Research Center Two-Dimensional Statistical Dynamical Climate Model MacKay, R. M. Khalil, M. A. K. 1995-10-01T07:00:00Z application/pdf https://pdxscholar.library.pdx.edu/phy_fac/14 https://pdxscholar.library.pdx.edu/cgi/viewcontent.cgi?article=1013&context=phy_fac unknown PDXScholar https://pdxscholar.library.pdx.edu/phy_fac/14 https://pdxscholar.library.pdx.edu/cgi/viewcontent.cgi?article=1013&context=phy_fac Physics Faculty Publications and Presentations Climatic changes -- Mathematical models Climatic changes -- Effect of greenhouse gases on Carbon dioxide -- Environmental aspects Physics text 1995 ftportlandstate 2022-01-09T19:24:56Z The zonally averaged response of the Global Change Research Center two-dimensional statistical dynamical climate model (GCRC 2-D SDCM) to a doubling of atmospheric carbon dioxide (350 parts per million by volume (ppmv) to 700 ppmv) is reported. The model solves the two-dimensional primitive equations in finite difference form (mass continuity, Newton's second law, and the first law of thermodynamics) for the prognostic variables: zonal mean density, zonal mean zonal velocity, zonal mean meridional velocity, and zonal mean temperature on a grid that has 18 nodes in latitude and 9 vertical nodes (plus the surface). The equation of state, p=rhoRT, and an assumed hydrostatic atmosphere, Deltap=rhogDeltaz, are used to diagnostically calculate the zonal mean pressure and vertical velocity for each grid node, and the moisture balance equation is used to estimate the precipitation rate. The model includes seasonal variations in solar intensity, including the effects of eccentricity, and has observed land and ocean fractions set for each zone. Seasonally varying values of cloud amounts, relative humidity profiles, ozone, and sea ice are all prescribed in the model. Equator to pole ocean heat transport is simulated in the model by turbulent diffusion. Text Sea ice Portland State University: PDXScholar |
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Open Polar |
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Portland State University: PDXScholar |
op_collection_id |
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unknown |
topic |
Climatic changes -- Mathematical models Climatic changes -- Effect of greenhouse gases on Carbon dioxide -- Environmental aspects Physics |
spellingShingle |
Climatic changes -- Mathematical models Climatic changes -- Effect of greenhouse gases on Carbon dioxide -- Environmental aspects Physics MacKay, R. M. Khalil, M. A. K. Doubled CO2 Experiments With the Global Change Research Center Two-Dimensional Statistical Dynamical Climate Model |
topic_facet |
Climatic changes -- Mathematical models Climatic changes -- Effect of greenhouse gases on Carbon dioxide -- Environmental aspects Physics |
description |
The zonally averaged response of the Global Change Research Center two-dimensional statistical dynamical climate model (GCRC 2-D SDCM) to a doubling of atmospheric carbon dioxide (350 parts per million by volume (ppmv) to 700 ppmv) is reported. The model solves the two-dimensional primitive equations in finite difference form (mass continuity, Newton's second law, and the first law of thermodynamics) for the prognostic variables: zonal mean density, zonal mean zonal velocity, zonal mean meridional velocity, and zonal mean temperature on a grid that has 18 nodes in latitude and 9 vertical nodes (plus the surface). The equation of state, p=rhoRT, and an assumed hydrostatic atmosphere, Deltap=rhogDeltaz, are used to diagnostically calculate the zonal mean pressure and vertical velocity for each grid node, and the moisture balance equation is used to estimate the precipitation rate. The model includes seasonal variations in solar intensity, including the effects of eccentricity, and has observed land and ocean fractions set for each zone. Seasonally varying values of cloud amounts, relative humidity profiles, ozone, and sea ice are all prescribed in the model. Equator to pole ocean heat transport is simulated in the model by turbulent diffusion. |
format |
Text |
author |
MacKay, R. M. Khalil, M. A. K. |
author_facet |
MacKay, R. M. Khalil, M. A. K. |
author_sort |
MacKay, R. M. |
title |
Doubled CO2 Experiments With the Global Change Research Center Two-Dimensional Statistical Dynamical Climate Model |
title_short |
Doubled CO2 Experiments With the Global Change Research Center Two-Dimensional Statistical Dynamical Climate Model |
title_full |
Doubled CO2 Experiments With the Global Change Research Center Two-Dimensional Statistical Dynamical Climate Model |
title_fullStr |
Doubled CO2 Experiments With the Global Change Research Center Two-Dimensional Statistical Dynamical Climate Model |
title_full_unstemmed |
Doubled CO2 Experiments With the Global Change Research Center Two-Dimensional Statistical Dynamical Climate Model |
title_sort |
doubled co2 experiments with the global change research center two-dimensional statistical dynamical climate model |
publisher |
PDXScholar |
publishDate |
1995 |
url |
https://pdxscholar.library.pdx.edu/phy_fac/14 https://pdxscholar.library.pdx.edu/cgi/viewcontent.cgi?article=1013&context=phy_fac |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Physics Faculty Publications and Presentations |
op_relation |
https://pdxscholar.library.pdx.edu/phy_fac/14 https://pdxscholar.library.pdx.edu/cgi/viewcontent.cgi?article=1013&context=phy_fac |
_version_ |
1766195108683710464 |