/[MITgcm]/manual/s_phys_pkgs/text/fizhi.tex
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revision 1.12 by molod, Tue Aug 2 21:17:38 2005 UTC revision 1.13 by molod, Wed Aug 3 17:55:20 2005 UTC
# Line 169  RH_{min} & = & 0.75 \nonumber \\ Line 169  RH_{min} & = & 0.75 \nonumber \\
169    
170  These cloud fractions are suppressed, however, in regions where the convective  These cloud fractions are suppressed, however, in regions where the convective
171  sub-cloud layer is conditionally unstable.  The functional form of $RH_c$ is shown in  sub-cloud layer is conditionally unstable.  The functional form of $RH_c$ is shown in
172  Figure (\ref{fig:fizhi:rhcrit}).  Figure (\ref{fig.rhcrit}).
173    
174  \begin{figure*}[htbp]  \begin{figure*}[htbp]
175    \vspace{0.4in}    \vspace{0.4in}
176    \centerline{  \epsfysize=4.0in  \epsfbox{part6/rhcrit.ps}}    \centerline{  \epsfysize=4.0in  \epsfbox{part6/rhcrit.ps}}
177    \vspace{0.4in}    \vspace{0.4in}
178    \caption  [Critical Relative Humidity for Clouds.]    \caption  [Critical Relative Humidity for Clouds.]
179              {Critical Relative Humidity for Clouds.}              {Critical Relative Humidity for Clouds.}
180    \label{fig:fizhi:rhcrit}    \label{fig.rhcrit}
181  \end{figure*}  \end{figure*}
182    
183  The total cloud fraction in a grid box is determined by the larger of the two cloud fractions:  The total cloud fraction in a grid box is determined by the larger of the two cloud fractions:
# Line 308  cloud cover of all the layers in the gro Line 308  cloud cover of all the layers in the gro
308  of a given layer is then scaled for both the direct (as a function of the  of a given layer is then scaled for both the direct (as a function of the
309  solar zenith angle) and diffuse beam radiation  solar zenith angle) and diffuse beam radiation
310  so that the grouped layer reflectance is the same as the original reflectance.  so that the grouped layer reflectance is the same as the original reflectance.
311  The solar flux is computed for each of the eight cloud realizations possible  The solar flux is computed for each of eight cloud realizations possible within this
 (see Figure \ref{fig:fizhi:cloud}) within this  
312  low/middle/high classification, and appropriately averaged to produce the net solar flux.  low/middle/high classification, and appropriately averaged to produce the net solar flux.
313    
 \begin{figure*}[htbp]  
   \vspace{0.4in}  
   \centerline{  \epsfysize=4.0in  %\epsfbox{part6/rhcrit.ps}  
              }  
   \vspace{0.4in}  
   \caption  {Low-Middle-High Cloud Configurations}  
   \label{fig:fizhi:cloud}  
 \end{figure*}  
   
   
314  \paragraph{Longwave Radiation}  \paragraph{Longwave Radiation}
315    
316  The longwave radiation package used in the fizhi package is thoroughly described by \cite{chsz:94}.  The longwave radiation package used in the fizhi package is thoroughly described by \cite{chsz:94}.
# Line 686  are shown in Table \ref{tab:fizhi:surfty Line 675  are shown in Table \ref{tab:fizhi:surfty
675  cell occupied by any surface type were derived from the surface classification of  cell occupied by any surface type were derived from the surface classification of
676  \cite{deftow:94}, and information about the location of permanent  \cite{deftow:94}, and information about the location of permanent
677  ice was obtained from the classifications of \cite{dorsell:89}.  ice was obtained from the classifications of \cite{dorsell:89}.
678  The surface type for the \txt GCM grid is shown in Figure \ref{fig:fizhi:surftype}.  The surface type map for a $1^\circ$ grid is shown in Figure \ref{fig:fizhi:surftype}.
679  The determination of the land or sea category of surface type was made from NCAR's  The determination of the land or sea category of surface type was made from NCAR's
680  10 minute by 10 minute Navy topography  10 minute by 10 minute Navy topography
681  dataset, which includes information about the percentage of water-cover at any point.  dataset, which includes information about the percentage of water-cover at any point.
682  The data were averaged to the model's \fxf and \txt grid resolutions,  The data were averaged to the model's grid resolutions,
683  and any grid-box whose averaged water percentage was $\geq 60 \%$ was  and any grid-box whose averaged water percentage was $\geq 60 \%$ was
684  defined as a water point. The \fxf grid Land-Water designation was further modified  defined as a water point. The Land-Water designation was further modified
685  subjectively to ensure sufficient representation from small but isolated land and water regions.  subjectively to ensure sufficient representation from small but isolated land and water regions.
686    
687  \begin{table}  \begin{table}
# Line 723  and surface albedo.} Line 712  and surface albedo.}
712    
713    
714  \begin{figure*}[htbp]  \begin{figure*}[htbp]
715    \centerline{  \epsfysize=7in  \epsfbox{part6/surftypes.ps}}    \begin{center}
716    \vspace{0.3in}    \rotatebox{270}{\resizebox{90mm}{!}{\includegraphics{part6/surftypes.eps}}}
717    \caption  {Surface Type Compinations at \txt resolution.}    \rotatebox{270}{\resizebox{100mm}{!}{\includegraphics{part6/surftypes.descrip.eps}}}
718      \end{center}
719      \vspace{0.2in}
720      \caption  {Surface Type Combinations at $1^\circ$ resolution.}
721    \label{fig:fizhi:surftype}    \label{fig:fizhi:surftype}
722  \end{figure*}  \end{figure*}
723    
724  \begin{figure*}[htbp]  % \rotatebox{270}{\centerline{  \epsfysize=4in  \epsfbox{part6/surftypes.eps}}}
725    \centerline{  \epsfysize=7in  \epsfbox{part6/surftypes.descrip.ps}}  % \rotatebox{270}{\centerline{  \epsfysize=4in  \epsfbox{part6/surftypes.descrip.eps}}}
726    \vspace{0.3in}  %\begin{figure*}[htbp]
727    \caption  {Surface Type Descriptions.}  %  \centerline{  \epsfysize=4in  \epsfbox{part6/surftypes.descrip.ps}}
728    \label{fig:fizhi:surftype.desc}  %  \vspace{0.3in}
729  \end{figure*}  %  \caption  {Surface Type Descriptions.}
730    %  \label{fig:fizhi:surftype.desc}
731    %\end{figure*}
732    
733    
734  \paragraph{Surface Roughness}  \paragraph{Surface Roughness}
# Line 797  fields include:  sea surface temperature Line 791  fields include:  sea surface temperature
791  vegetation index, and the radiation-related background levels of: ozone, carbon dioxide,  vegetation index, and the radiation-related background levels of: ozone, carbon dioxide,
792  and stratospheric moisture.  and stratospheric moisture.
793    
794  Boundary condition data sets are available at the model's \fxf and \txt  Boundary condition data sets are available at the model's
795  resolutions for either climatological or yearly varying conditions.  resolutions for either climatological or yearly varying conditions.
796  Any frequency of boundary condition data can be used in the fizhi package;  Any frequency of boundary condition data can be used in the fizhi package;
797  however, the current selection of data is summarized in Table \ref{tab:fizhi:bcdata}\@.  however, the current selection of data is summarized in Table \ref{tab:fizhi:bcdata}\@.
798  The time mean values are interpolated during each model timestep to the  The time mean values are interpolated during each model timestep to the
799  current time. Future model versions will incorporate boundary conditions at  current time.
 higher spatial \mbox{($1^\circ$ x $1^\circ$)} resolutions.  
800    
801  \begin{table}[htb]  \begin{table}[htb]
802  \begin{center}  \begin{center}
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