PrimEqModel <author>R. Saravana / svn@amtp.cam.ac.uk <version> <abstract> Implementation of a very simple 3-dimensional primitive equation model, using pressure coordinates as described by Lorenz (1960). The advantage of using pressure coordinates is that the equations of motion take on a particularly simple form. The main disadvantage is that we cannot easily apply a realistic boundary condition at the lower boundary, i.e., it is not really possible to include the effects of surface topography. The model we are about to describe assumes that the planetary surface is essentially smooth, and that there is sufficient drag acting near the lower boundary to make the details of the lower boundary condition quite unimportant. This model would not be suitable for ``realistic'' simulation of the Earth's climate (especially in the troposphere), but could be quite useful for mechanistic models of isolated phenomena, and for studying idealized planetary atmospheres. <description><url></url> <reference><url>ftp://perelandra.cms.udel.edu/models/PrimEqModel/doc.ps.Z</url> <reference><url>ftp://perelandra.cms.udel.edu/models/PrimEqModel/report.ps.Z</url> <contact>R. Saravana / svn@amtp.cam.ac.uk <keywords>pressure coordinates; primitive equation model; application program; atmospheric dynamics <category>application <publication-date> <environment> <method> <application>atmospheric primitive equation model on a sphere <comments> Distributed free for research purposes. The software comes with absolutely no warranties whatsoever. This software may be freely copied, and may also be modified, provided the modified software continues to be freely available under the same terms. This software may not be used for any commercial purpose. </urc> <urc> <url>ftp://perelandra.cms.udel.edu/models/qgbox/qgbox.tar.Z <title>McCalpin's 2-D Quasigeostrophic Box Model <author>McCalpin / mccalpin@perelandra.cms.udel.edu <version>2.3 <abstract> Two-dimensional, reduced-gravity quasigeostrophic box model for simulating mid-latitude wind-driven ocean circulation. <description><url>ftp://perelandra.cms.udel.edu/models/qgbox/README</url> <reference><url></url> <contact>McCalpin / mccalpin@perelandra.cms.udel.edu <keywords>quasigeostrophic box model; ocean circulation; application program; environmental science <category>application <publication-date> <environment>The model is written using the FWEB processor. <method> <application>ocean circulation simulation <comments> </urc>

ftp://perelandra.cms.udel.edu/models/PrimEqModel/peqmod.sh.Z PrimEqModel <author>R. Saravana / svn@amtp.cam.ac.uk <version> <abstract> Implementation of a very simple 3-dimensional primitive equation model, using pressure coordinates as described by Lorenz (1960). The advantage of using pressure coordinates is that the equations of motion take on a particularly simple form. The main disadvantage is that we cannot easily apply a realistic boundary condition at the lower boundary, i.e., it is not really possible to include the effects of surface topography. The model we are about to describe assumes that the planetary surface is essentially smooth, and that there is sufficient drag acting near the lower boundary to make the details of the lower boundary condition quite unimportant. This model would not be suitable for ``realistic'' simulation of the Earth's climate (especially in the troposphere), but could be quite useful for mechanistic models of isolated phenomena, and for studying idealized planetary atmospheres. <description><url></url> <reference><url>ftp://perelandra.cms.udel.edu/models/PrimEqModel/doc.ps.Z</url> <reference><url>ftp://perelandra.cms.udel.edu/models/PrimEqModel/report.ps.Z</url> <contact>R. Saravana / svn@amtp.cam.ac.uk <keywords>pressure coordinates; primitive equation model; application program; atmospheric dynamics <category>application <publication-date> <environment> <method> <application>atmospheric primitive equation model on a sphere <comments> Distributed free for research purposes. The software comes with absolutely no warranties whatsoever. This software may be freely copied, and may also be modified, provided the modified software continues to be freely available under the same terms. This software may not be used for any commercial purpose. </urc> <urc> <url>ftp://perelandra.cms.udel.edu/models/qgbox/qgbox.tar.Z <title>McCalpin's 2-D Quasigeostrophic Box Model <author>McCalpin / mccalpin@perelandra.cms.udel.edu <version>2.3 <abstract> Two-dimensional, reduced-gravity quasigeostrophic box model for simulating mid-latitude wind-driven ocean circulation. <description><url>ftp://perelandra.cms.udel.edu/models/qgbox/README</url> <reference><url></url> <contact>McCalpin / mccalpin@perelandra.cms.udel.edu <keywords>quasigeostrophic box model; ocean circulation; application program; environmental science <category>application <publication-date> <environment>The model is written using the FWEB processor. <method> <application>ocean circulation simulation <comments> </urc>