<p><b>weiwang</b> 2008-05-19 13:07:00 -0600 (Mon, 19 May 2008)</p><p>update cover, acknowledgment, chap 1 and bbl<br>
</p><hr noshade><pre><font color="gray">Modified: trunk/wrf/technote/acknow.tex
===================================================================
--- trunk/wrf/technote/acknow.tex 2008-05-19 19:02:24 UTC (rev 75)
+++ trunk/wrf/technote/acknow.tex 2008-05-19 19:07:00 UTC (rev 76)
@@ -7,15 +7,17 @@
Regarding 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 considerably in the turbulent mixing algorithms and other
-model filters.
+contributed in the turbulent mixing algorithms and other model filters.
+Mark Richardson, Anthony Toigo and Claire Newman for generalizing the
+WRF code for global applications.
\vskip 10pt
Regarding the physics, we would like to thank Tom Black, John Brown, Kenneth Campana,
-Fei Chen, Shu-Hua Chen, Ming-Da Chou, Mike Ek, Brad Ferrier, Georg Grell, Bill
-Hall, Songyou Hong, Zavisa Janjic, Jack Kain, Jeong-Ock Lim, Ken
-Mitchell, Eli Mlawer, Tanya Smirnova, Wei-Kuo Tao, Greg Thompson, and
-others.
+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,
+Ken Mitchell, Eli Mlawer, Hugh Morrison, Jon Pleim, Tanya Smirnova, Dave Stauffer,
+Wei-Kuo Tao, Mukul Tewari, Greg Thompson, Guenther Zaengl and others.
\vskip 10pt
The development of WRF-Var represents an international team effort.
@@ -23,7 +25,8 @@
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, and Hui-Chuan Lin.
+Shu-Hua Chen, Hui-Chuan Lin, John Bray, Xin Zhang, Hans Huang, Zhiquan Liu,
+Tom Auligne, Xianyan Zhang, and Yongsheng Chen.
\vskip 10pt
We would like express our appreciation to John Michalakes for developing
Modified: trunk/wrf/technote/cover.tex
===================================================================
--- trunk/wrf/technote/cover.tex 2008-05-19 19:02:24 UTC (rev 75)
+++ trunk/wrf/technote/cover.tex 2008-05-19 19:07:00 UTC (rev 76)
@@ -4,15 +4,15 @@
\begin{center}
\section*{ }
\begin{tabular}{lr|l}
- &\textsf{NCAR/TN--468+STR}&\hspace{0.5cm}{ }\\
+ &\textsf{NCAR/TN--xxx+STR}&\hspace{0.5cm}{ }\\
&\textsf{\textbf{NCAR TECHNICAL NOTE}}&\\ \hline
- &June 2005&\\[1cm]
+ &June 2008&\\[1cm]
\multicolumn{2}{l|}
{\LARGE \textsf{\textbf{A Description of the \hphantom{Advanced Research}}}}
&\\ [5pt]
\multicolumn{2}{l|}
-{\LARGE \textsf{\textbf{Advanced Research WRF Version 2}}}
+{\LARGE \textsf{\textbf{Advanced Research WRF Version 3}}}
&\\[1cm]
</font>
<font color="gray">ormalsize
@@ -21,6 +21,7 @@
Jimy Dudhia&&\\
David O. Gill&&\\
Dale M. Barker&&\\
+Michael G. Duda&&\\
Wei Wang&&\\
Jordan G. Powers&&\\[11cm]
&&\\%[15cm]
Modified: trunk/wrf/technote/description.bbl
===================================================================
--- trunk/wrf/technote/description.bbl 2008-05-19 19:02:24 UTC (rev 75)
+++ trunk/wrf/technote/description.bbl 2008-05-19 19:07:00 UTC (rev 76)
@@ -134,6 +134,11 @@
combining ensemble and data assimilation techniques.
{\em Geophys. Res. Lett.}, {\bf 29(14)}, Article 1693.
+\bibitem[Grell et al.(2005)]{Grelletal05}%
+Grell, G.A., S.E. Peckham, R. Schmitz, S.A. McKeen, G. Frost,
+W.C. Skamarock and B. Eder, 2005: Fully coupled online chemistry
+within the WRF model. {\em Atmos. Environ.}, {\bf 39}, 6957-6975.
+
\bibitem[Haltiner and Williams(1980)]{haltiner_and_williams}%
Haltiner, G. J., and R. T. Williams, 1980:
{\em Numerical prediction and dynamic meteorology.}
@@ -556,9 +561,9 @@
parameterization. Part I: The single-moment scheme.
{\em Atmos. Res.,} {\bf 38}, 29--62.
-\bibitem[Wang et al.(2004)]{wang04}%
-Wang, W., D. Barker, C. Bruy\`ere, J. Dudhia, D. Gill, and J. Michalakes, 2004:
-WRF Version 2 modeling system user's guide.
+\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/}.
\bibitem[Webb(1970)]{webb70}%
Modified: trunk/wrf/technote/intro.tex
===================================================================
--- trunk/wrf/technote/intro.tex 2008-05-19 19:02:24 UTC (rev 75)
+++ trunk/wrf/technote/intro.tex 2008-05-19 19:07:00 UTC (rev 76)
@@ -1,10 +1,12 @@
\chapter{Introduction}
\label{introduction_chap}
-The Weather Research and Forecasting (WRF) modeling system is
-a numerical weather prediction (NWP) capability designed for both
-research and operational applications. It can produce
-atmospheric simulations both retrospectively, as in case studies,
-and prospectively, as in real-time forecasts.
+The Weather Research and Forecasting (WRF) model is
+a numerical weather prediction (NWP) and atmospheric simulation
+system designed for both
+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
and data assimilation system to advance the understanding and prediction
@@ -26,9 +28,12 @@
Its modular, single-source code can be configured for both
research and operational applications. Its spectrum of physics
and dynamics options reflects the experience and input of the
-broad scientific community. Its variational data assimilation system (WRF-Var)
-allows it to ingest a host of observation types in pursuit of
-generating optimal initial conditions. WRF is maintained and
+broad scientific community. Its WRF-Var variational data assimilation
+system can ingest a host of observation types in pursuit of
+optimal initial conditions, while its WRF-Chem
+model provides a capability for air chemistry modeling.
+
+WRF is maintained and
supported as a community model to facilitate wide use internationally,
for research, operations, and teaching.
It is suitable for a broad span of applications across
@@ -36,19 +41,15 @@
include real-time NWP, data assimilation
development and studies, parameterized-physics research, regional
climate simulations, air quality modeling, atmosphere-ocean coupling, and
-idealized simulations. Goals of having WRF as a common tool in the
-university/research and operational communities are to promote
-closer ties between these groups and to shorten the path of research
-advances to operations. These aims have made the WRF endeavor
-noteworthy in the evolution of NWP. As of this writing,
+idealized simulations. As of this writing,
the WRF registered user community numbers over 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.
The WRF Software Framework (WSF) provides the infrastructure
-that accommodates dynamics solvers, physics packages that
-interface with the solvers, programs for initialization, and the
-WRF-Var system. There are two dynamics solvers in the WSF: the
+that accommodates the dynamics solvers, physics packages
+that interface with the solvers, programs for initialization,
+WRF-Var, and WRF-Chem. There are two dynamics solvers in the WSF: the
Advanced Research WRF (ARW) solver (originally referred to
as the Eulerian mass or $``$em" solver) developed primarily at NCAR, and
the NMM (Nonhydrostatic Mesoscale Model) solver developed at NCEP.
@@ -69,7 +70,7 @@
The ARW is the ARW dynamics solver together with other
components of the WRF system compatible with that solver and
used in producing a simulation. Thus, it is a subset of
-the WRF modeling system that in addition to the ARW solver
+the WRF modeling system that, in addition to the ARW solver,
encompasses physics schemes, numerics/dynamics options,
initialization routines, and a data assimilation package (WRF-Var).
The ARW solver shares the WSF with the NMM solver and all other
@@ -78,19 +79,23 @@
compatibility varies with the schemes considered.
The association of a component of the WRF system with
the ARW subset does not preclude it from being a
-component of any WRF configuration involving the NMM solver.
+component of WRF configurations involving the NMM solver.
The following section highlights the major features of the
ARW, Version 3, and reflects elements of WRF Version 3,
which was first released in April 2008.
-This technical note focuses on the scientific and algorithmic approaches
-in the ARW. Discussed are the solver, physics options,
+This technical note focuses on the scientific and algorithmic
+approaches in the ARW, including the solver, physics options,
initialization capabilities, boundary conditions, and grid-nesting techniques.
The WSF provides the software infrastructure.
WRF-Var, a component of the broader WRF system, was
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
+http://ruc.fsl.noaa.gov/wrf/WG11/status.htm .
For those seeking information on running the ARW system,
-the {\wrf} User's Guide (update citation \citep{wang04})
+the {\wrf} User's Guide \citep{wang08}
has the details on its operation.
\section {Major Features of the ARW System, Version 3}
@@ -121,7 +126,7 @@
Arakawa C-grid staggering.
%
\item{$\bullet$} {\em Time Integration:}
-Time-split integration using a 2dn- or 3rd-order Runge-Kutta scheme with
+Time-split integration using a 2nd- or 3rd-order Runge-Kutta scheme with
smaller time step for acoustic and gravity-wave modes.
Variable time step capability.
%
@@ -143,8 +148,9 @@
Periodic, open, symmetric, and specified options available.
%
\item{$\bullet$} {\em Top Boundary Conditions:}
-Gravity wave absorbing (diffusion, Rayleigh damping, or implicit Rayleigh damping
-for vertical velocity). $w = 0$ top boundary condition at constant pressure level.
+Gravity wave absorbing (diffusion, Rayleigh damping, or implicit
+Rayleigh damping for vertical velocity).
+Constant pressure level at top boundary along a material surface.
%
\item{$\bullet$} {\em Bottom Boundary Conditions:}
Physical or free-slip.
@@ -154,7 +160,8 @@
%
\item{$\bullet$} {\em Mapping to Sphere:}
Four map projections are supported for real-data simulation:
-polar stereographic, Lambert conformal, Mercator, and latitude-longitude.
+polar stereographic, Lambert conformal, Mercator, and
+latitude-longitude (allowing rotated pole).
Curvature terms included.
%
\item{$\bullet$} {\em Nesting:}
@@ -164,7 +171,7 @@
Grid (analysis) and observation nudging capabilities available.
%
\item{$\bullet$} {\em Global Grid:}
-Global simulation capability.
+Global simulation capability using polar Fourier filter.
\end{description}
\vskip 12pt
@@ -204,7 +211,7 @@
%
\item{$\bullet$} Quasi-Newton or conjugate gradient minimization algorithms.
%
-\item{$\bullet$} Analysis increments on un-staggered Arakawa-A grid.
+\item{$\bullet$} Analysis increments on unstaggered Arakawa-A grid.
%
\item{$\bullet$} Representation of the horizontal component of background error ${\bf B}$ via
recursive filters (regional) or power spectra (global). The
@@ -233,7 +240,7 @@
\begin{description}
\setlength{\itemsep}{-5pt}
\item{$\bullet$} Online (or ``inline'') model, in which the model is consistent
-with all transport done by the meteorology model.
+with all conservative transport done by the meteorology model.
%
\item{$\bullet$} Dry deposition, coupled with the soil/vegetation scheme.
%
@@ -274,27 +281,29 @@
\setlength{\itemsep}{-5pt}
\item{$\bullet$} Highly modular, single-source code for maintainability.
%
-\item{$\bullet$} Portable across a range of available computing platforms.
+\item{$\bullet$} Portable across a range of available computing platforms.
%
\item{$\bullet$} Support for multiple dynamics solvers and physics modules.
%
\item{$\bullet$}
-Separation of scientific codes from parallelization and other architecture-specific codes.
+Separation of scientific codes from parallelization and other
+architecture-specific issues.
%
\item{$\bullet$}
-Input/Output Application Program Interface (API) enabling various external
-packages to be installed with WRF, hence allowing WRF
+Input/Output Application Program Interface (API) enabling various external
+packages to be installed with WRF, thus allowing WRF
to easily support various data formats.
%
\item{$\bullet$}
-Efficient execution on a range of computing platforms
+Efficient execution on a range of computing platforms
(distributed and shared memory, vector
-and scalar types).
+and scalar types). Support for accelerators (e.g., GPUs).
%
\item{$\bullet$}
-Use of Earth System Modeling Framework (ESMF) timing package.
+Use of Earth System Modeling Framework (ESMF) and interoperable as an ESMF
+component.
%
\item{$\bullet$}
-Model coupling API enabling WRF to be coupled with other models such as
-ocean, and land models.
+Model coupling API enabling WRF to be coupled with other models such as
+ocean, and land models using ESMF, MCT, or MCEL.
\end{description}
</font>
</pre>