<p><b>weiwang</b> 2008-06-16 16:34:50 -0600 (Mon, 16 Jun 2008)</p><p>updates for a few chaps<br>
</p><hr noshade><pre><font color="gray">Modified: trunk/wrf/technote/acknow.tex
===================================================================
--- trunk/wrf/technote/acknow.tex 2008-06-09 20:38:01 UTC (rev 86)
+++ trunk/wrf/technote/acknow.tex 2008-06-16 22:34:50 UTC (rev 87)
@@ -4,20 +4,22 @@
\hskip 15pt
Many people beyond this document's author list have
contributed to the development of dynamics and physics.
-Regarding the dynamics solver
+For the dynamics solver
development, we would like to thank Louis Wicker for his assistance with
-the Runge-Kutta integration scheme. George Bryan and Jason Knievel
-contributed in the turbulent mixing algorithms and other model filters.
+the Runge-Kutta integration scheme; George Bryan and Jason Knievel
+for contributing in the turbulent mixing algorithms and other model filters;
Mark Richardson, Anthony Toigo and Claire Newman for generalizing the
-WRF code for global applications.
+WRF code for global applications.
\vskip 10pt
-Regarding the physics, we would like to thank Tom Black, John Brown, Kenneth Campana,
+For physics contributions, we would like to thank Tom Black, John Brown, Kenneth Campana,
Fei Chen, Shu-Hua Chen, Ming-Da Chou, Aijun Deng, Mike Ek, Brad Ferrier, Georg Grell, Bill
Hall, Songyou Hong, Zavisa Janjic, Jack Kain, Hiroyuki Kusaka,
-Jeong-Ock Lim, Kyo-Sun Lim, Yubao Liu, Ruby Leung,
+Ruby Leung, Jeong-Ock Lim, Kyo-Sun Lim, Yubao Liu, Chin-Hoh Moeng,
Ken Mitchell, Eli Mlawer, Hugh Morrison, Jon Pleim, Tanya Smirnova, Dave Stauffer,
Wei-Kuo Tao, Mukul Tewari, Greg Thompson, Guenther Zaengl and others.
+We also acknowledge the contribution by Min Chen, Ju-Won Kim, Steven Peckham, Tanya Smirnova,
+John Brown and Stan Benjamin for the digital filter initialization development.
\vskip 10pt
The development of WRF-Var represents an international team effort.
@@ -25,7 +27,7 @@
contributions to the WRF-Var system: Yong-Run Guo, Wei Huang, Qingnong
Xiao, Syed Rizvi, Francois Vandenberghe, Mike McAtee, Roy Peck, Wan-Shu Wu,
Dezso Devenyi, Jianfeng Gu, Mi-Seon Lee, Ki-Han Youn, Eunha Lim, Hyun-Cheol Shin,
-Shu-Hua Chen, Hui-Chuan Lin, John Bray, Xin Zhang, Hans Huang, Zhiquan Liu,
+Shu-Hua Chen, Hui-Chuan Lin, John Bray, Xin Zhang, Zhiquan Liu,
Tom Auligne, Xianyan Zhang, and Yongsheng Chen.
\vskip 10pt
@@ -35,7 +37,8 @@
and Dan Schaffer for their contributions to the software development.
\vskip 10pt
-Finally, we would like to thank Hans Huang and Louisa Nance
+Finally, we would like to thank George Bryan,
+Jim Bresch, Jian-Wen Bao and John Brown
for their careful review of this document. We also thank
Cindy Bruy\`ere for assistance with the graphics.
Modified: trunk/wrf/technote/cover.tex
===================================================================
--- trunk/wrf/technote/cover.tex 2008-06-09 20:38:01 UTC (rev 86)
+++ trunk/wrf/technote/cover.tex 2008-06-16 22:34:50 UTC (rev 87)
@@ -4,7 +4,7 @@
\begin{center}
\section*{ }
\begin{tabular}{lr|l}
- &\textsf{NCAR/TN--xxx+STR}&\hspace{0.5cm}{ }\\
+ &\textsf{NCAR/TN--475+STR}&\hspace{0.5cm}{ }\\
&\textsf{\textbf{NCAR TECHNICAL NOTE}}&\\ \hline
&June 2008&\\[1cm]
\multicolumn{2}{l|}
@@ -22,6 +22,7 @@
David O. Gill&&\\
Dale M. Barker&&\\
Michael G. Duda&&\\
+Xiang-Yu Huang&&\\
Wei Wang&&\\
Jordan G. Powers&&\\[11cm]
&&\\%[15cm]
Modified: trunk/wrf/technote/description.bbl
===================================================================
--- trunk/wrf/technote/description.bbl 2008-06-09 20:38:01 UTC (rev 86)
+++ trunk/wrf/technote/description.bbl 2008-06-16 22:34:50 UTC (rev 87)
@@ -185,7 +185,7 @@
A new vertical diffusion package with an explicit treatment of entrainment processes.
{\em Mon. Wea. Rev.}, {\bf 134}, 2318--2341.
-\bibitem[Huang and Lynch(1993)]{huanglynch93}%
+\bibitem[Huang and Lynch, 1993]{huanglynch93}%
Huang, X.-Y. and P. Lynch, 1993:
Diabatic Digital-Filtering Initialization: Application to the HIRLAM Model.,
{\em Mon. Wea. Rev.}, {\bf 121}, 589--603.
@@ -564,7 +564,7 @@
\bibitem[Wang et al.(2008)]{wang08}%
Wang, W., D. Barker, C. Bruy\`ere, M. Duda, J. Dudhia, D. Gill, J. Michalakes, and S. Rizvi, 2008:
WRF Version 3 Modeling System User's Guide.
- {\em http://www.mmm.ucar.edu/wrf/users/docs/user$\_$guide/}.
+ {\em http://www.mmm.ucar.edu/wrf/users/docs/user$\_$guide$\_$V3/}.
\bibitem[Webb(1970)]{webb70}%
Webb, E. K., 1970: Profile relationships: The log-linear range, and extension to strong stability,
@@ -592,6 +592,24 @@
Doppler Velocities on Forecasts of a Heavy Rainfall Case.
{\em J. Appl. Met.}, {\bf 44(6)}, 768--788.
+\bibitem[Xiao et al.(2007a)]{xiao07}%
+ Xiao, Q., Ying-Hwa Kuo, Juanzhen Sun, Wen-Chau Lee, D. M. Barker,
+ and Eunha Lim, 2007: An approach of radar reflectivity data assimilation
+ and its assessment with the inland QPF of Typhoon Rusa (2002) at landfall.
+ {\em J. Appl. Meteor. Climat.}, {\bf 46}, 14--22.
+
+\bibitem[Xiao et al.(2007b)]{xiao072}%
+ Xiao, Q., J. Sun, 2007: Multiple radar data assimilation and short-range
+ quantitative precipitation forecasting of a squall line observed during
+ IHOP 2002.
+ {\em Mon. Wea. Rev.}, {\bf 135}, 3381--3404.
+
+\bibitem[Xiao et al.(2008)]{xiao08}%
+ Xiao, Q., Eunha Lim, D.-J. Won, J. Sun, W.-C. Lee, M.-S. Lee, W.-J. Lee,
+ J.-Y. Cjo, Y.-H. Kuo, D. M. Barker, D.-K. Lee, and H.-S. Lee, 2008: Doppler
+ radar data assimilation in KMAs operational forecasting.
+ {\em Bull. Amer. Meteor. Soc.}, {\bf 89}, 39--43.
+
\bibitem[Xiu and Pleim(2001)]{xiu01}
Xiu, A. and J. E. Pleim, 2001:
Development of a land surface model part I: Application in a mesoscale meteorology model.
Modified: trunk/wrf/technote/intro.tex
===================================================================
--- trunk/wrf/technote/intro.tex 2008-06-09 20:38:01 UTC (rev 86)
+++ trunk/wrf/technote/intro.tex 2008-06-16 22:34:50 UTC (rev 87)
@@ -6,9 +6,8 @@
research and operational applications. WRF is supported
as a common tool for the university/research and operational
communities to promote closer ties between them and to
-shorten the path of research advances to operations.
-The development of WRF has been a multi-agency effort
-to build a next-generation mesoscale forecast model
+address the needs of both. The development of WRF has been a
+multi-agency effort to build a next-generation mesoscale forecast model
and data assimilation system to advance the understanding and prediction
of mesoscale weather and accelerate the transfer of research
advances into operations. The WRF effort has been a collaborative one
@@ -42,7 +41,7 @@
development and studies, parameterized-physics research, regional
climate simulations, air quality modeling, atmosphere-ocean coupling, and
idealized simulations. As of this writing,
-the WRF registered user community numbers over 6000, and WRF is in
+the number of registered WRF users exceeds 6000, and WRF is in
operational and research use around the world.
The principal components of the WRF system are depicted in Figure 1.1.
@@ -56,6 +55,7 @@
Community support for the former is provided by the MMM Division of NCAR
and that for the latter is provided by the Developmental Testbed Center (DTC).
+
%
% Figure 1.1
%
@@ -92,7 +92,7 @@
adapted from MM5 3DVAR \citep{barker04} and is encompassed within the ARW.
While WRF-Chem is part of the ARW, Version 3, it is described
outside of this technical note. Those seeking details on
-WRF-Chem may consult \citep{Grelletal05} and
+WRF-Chem may consult \citet{Grelletal05} and
http://ruc.fsl.noaa.gov/wrf/WG11/status.htm .
For those seeking information on running the ARW system,
the {\wrf} User's Guide \citep{wang08}
@@ -116,7 +116,7 @@
and perturbation surface pressure of dry air.
Optionally, turbulent kinetic energy and any number of scalars
such as water vapor mixing ratio, rain/snow mixing ratio,
-and cloud water/ice mixing ratio.
+cloud water/ice mixing ratio, and chemical species and tracers.
%
\item{$\bullet$} {\em Vertical Coordinate:}
Terrain-following, dry hydrostatic-pressure, with vertical grid stretching permitted.
@@ -137,12 +137,12 @@
turbulence formulation in both coordinate and physical space.
Divergence damping, external-mode filtering, vertically implicit
acoustic step off-centering. Explicit filter option.
-Digital filter initialization (DFI) capability.
%
\item{$\bullet$} {\em Initial Conditions:}
Three dimensional for real-data, and one-, two- and
three-dimensional for idealized data.
-A number of test cases are provided.
+Digital filtering initialization (DFI) capability
+available (real-data cases).
%
\item{$\bullet$} {\em Lateral Boundary Conditions:}
Periodic, open, symmetric, and specified options available.
@@ -151,6 +151,7 @@
Gravity wave absorbing (diffusion, Rayleigh damping, or implicit
Rayleigh damping for vertical velocity).
Constant pressure level at top boundary along a material surface.
+Rigid lid option.
%
\item{$\bullet$} {\em Bottom Boundary Conditions:}
Physical or free-slip.
@@ -166,14 +167,17 @@
%
\item{$\bullet$} {\em Nesting:}
One-way interactive, two-way interactive, and moving nests.
+Multiple levels and integer ratios.
%
\item{$\bullet$} {\em Nudging:}
Grid (analysis) and observation nudging capabilities available.
%
\item{$\bullet$} {\em Global Grid:}
-Global simulation capability using polar Fourier filter.
+Global simulation capability using polar Fourier filter and
+periodic east-west conditions.
\end{description}
+</font>
<font color="black">ewpage
\vskip 12pt
{</font>
<font color="gray">oindent\bf Model Physics}
\vskip 12pt
@@ -181,8 +185,8 @@
\begin{description}
\setlength{\itemsep}{-5pt}
\item{$\bullet$} {\em Microphysics:} Schemes ranging from simplified
-physics suitable for larger scales to sophisticated mixed-phase
-physics suitable for cloud-resolving scales.
+physics suitable for idealized studies to sophisticated mixed-phase
+physics suitable for process studies and NWP.
%
\item{$\bullet$} {\em Cumulus parameterizations:}
Adjustment and mass-flux schemes for mesoscale modeling.
@@ -195,7 +199,8 @@
Turbulent kinetic energy prediction or non-local $K$ schemes.
%
\item{$\bullet$} {\em Atmospheric radiation physics:}
-Longwave and shortwave schemes with multiple spectral bands and a simple shortwave scheme.
+Longwave and shortwave schemes with multiple spectral bands and a
+simple shortwave scheme suitable for climate and weather applications.
Cloud effects and surface fluxes are included.
\end{description}
@@ -281,6 +286,9 @@
\setlength{\itemsep}{-5pt}
\item{$\bullet$} Highly modular, single-source code for maintainability.
%
+\item{$\bullet$} Two-level domain decomposition for parallel and
+shared-memory generality.
+%
\item{$\bullet$} Portable across a range of available computing platforms.
%
\item{$\bullet$} Support for multiple dynamics solvers and physics modules.
Modified: trunk/wrf/technote/var.tex
===================================================================
--- trunk/wrf/technote/var.tex 2008-06-09 20:38:01 UTC (rev 86)
+++ trunk/wrf/technote/var.tex 2008-06-16 22:34:50 UTC (rev 87)
@@ -179,22 +179,23 @@
\subsection{Radar Data Assimilation}
-Numerous modifications have been made in order to assimilate Doppler
-radar radial velocity and reflectivity observations. Firstly, vertical
-velocity increments are included in WRF-Var via the ``Richarson
-balance equation" that combines the continuity equation, adiabatic
-thermodynamic equation, and hydrostatic relation. Linear and adjoint
-codes of Richardson's equation have been incorporated into WRF-Var. In
-order to develop a capability for Doppler reflectivity assimilation,
-we use the total water as a control variable, requiring a partitioning
-of the moisture and water hydrometeor increments. A warm-rain
-parameterization is also included, which includes condensation of
-water vapor into cloud, accretion of cloud by rain, automatic
-conversion of cloud to rain, and evaporation of rain to water
-vapor. Finally, the observation operators for Doppler radial velocity
-and reflectivity are included in WRF-Var. Further details and results
-of the radial velocity work can be found in \citet{xiao05}. The radar
-reflectivity approach will be described in a future paper.
+A capability to assimilate Doppler radar radial velocity
+and reflectivity observations is available in WRF-Var
+\citep{xiao05, xiao07, xiao072, xiao08}.
+In order to calculate the vertical velocity increment as a result of
+assimilating the vertical velocity component of radial velocity,
+the Richarson balance equation, which combines the continuity
+equation, adiabatic thermodynamic equation and hydrostatic
+relation, and its linear and adjoint codes are introduced.
+For reflectivity assimilation, total water is used as a control variable.
+This requires a partitioning
+between water vapor and hydrometeor increments during the minimization procedure.
+A warm-rain parameterization is included to assist the calculation
+of hydrometeors, which includes condensation of water vapor
+into cloud, accretion of cloud by rain, automatic
+conversion of cloud to rain, and evaporation of rain to water vapor.
+The observation operators for Doppler radial velocity
+and reflectivity are included.
\subsection{Unified Regional/Global 3D-Var Assimilation}
</font>
</pre>