source: lmdz_wrf/branches/LMDZ_WRFmeas_develop/WRFV3/README @ 147

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WRF: version v3.3
LMDZ: version v1818

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1WRF Model Version 3.3 (April 6, 2011)
2http://wrf-model.org/users/users.php
3
4------------------------
5WRF PUBLIC DOMAIN NOTICE
6------------------------
7
8WRF was developed at the National Center for Atmospheric Research
9(NCAR) which is operated by the University Corporation for
10Atmospheric Research (UCAR). NCAR and UCAR make no proprietary
11claims, either statutory or otherwise, to this version and
12release of WRF and consider WRF to be in the public domain for
13use by any person or entity for any purpose without any fee or
14charge. UCAR requests that any WRF user include this notice on
15any partial or full copies of WRF. WRF is provided on an "AS
16IS" basis and any warranties, either express or implied,
17including but not limited to implied warranties of
18non-infringement, originality, merchantability and fitness for a
19particular purpose, are disclaimed. In no event shall
20UCAR be liable for any damages, whatsoever, whether direct,
21indirect, consequential or special, that arise out of or in
22connection with the access, use or performance of WRF, including
23infringement actions.
24
25
26======================================
27This is the main directory for the WRF Version 3 source code release.
28======================================
29
30V3.3 Release Notes:
31-------------------
32
33Version 3.3 is released on April 6, 2011 (rev 4896).
34
35- For more information on WRF V3.3 release, visit WRF User's home pages
36  http://www.mmm.ucar.edu/wrf/users/, and
37  http://www.dtcenter.org/wrf-nmm/users/, and read the online User's Guide.
38
39
40======================================
41
42V3.2.1 Release Notes (8/18/10):
43------------------
44
45This is a bug fix release. The detailed updates for WRF-ARW can be found at
46http://www.mmm.ucar.edu/wrf/users/wrfv3.2/updates-3.2.1.html, and
47for WRF-NMM at
48http://www.dtcenter.org/wrf-nmm/users/model/wrfv3/updates.php
49
50See online User's Guides for latest information.
51
52======================================
53
54V3.2 Release Notes:
55-------------------
56
57Version 3.2 is released on March 31, 2010.
58
59- For more information on WRF V3.2 release, visit WRF User's home pages
60  http://www.mmm.ucar.edu/wrf/users/, and
61  http://www.dtcenter.org/wrf-nmm/users/, and read the online User's Guide.
62
63
64======================================
65
66V3.1.1 Release Notes (7/31/09):
67------------------
68
69This is a bug fix release. The detailed updates for WRF-ARW can be found at
70http://www.mmm.ucar.edu/wrf/users/wrfv3.1/updates-3.1.1.html, and
71for WRF-NMM at
72http://www.dtcenter.org/wrf-nmm/users/model/wrfv3/updates.php
73
74See online User's Guides for latest information.
75
76======================================
77
78V3.1 Release Notes:
79-------------------
80
81Version 3.1 is released on April 9, 2009.
82
83- For more information on WRF V3.1 release, visit WRF Users home page
84  http://www.mmm.ucar.edu/wrf/users/, and read the online User's Guide.
85- WRF V3 executable will work with V3.0 wrfinput/wrfbdy (but requires
86  inserting a new namelist variable use_baseparam_fr_nml in &dynamics). As
87  always, rerunning the new programs is recommended.
88- WRF V3.1 has changed a number of namelists. For example, ucmcall has
89  become sf_urban_physics, pd_moist(scalar/tke/chem) has become
90  moist_adv_opt (scalar/tke/chem_adv_opt). Helpful messages will be printed
91  to aid you.
92
93
94V3.0.1.1 Release Notes:
95-----------------------
96
97Version 3.0.1.1 has only limited bug fixes compared to version 3.0.1.
98The detailed updates for WRF-ARW can be found at
99http://www.mmm.ucar.edu/wrf/users/wrfv3/updates-3.0.1.1.html.
100
101
102V3.0.1 Release Notes:
103---------------------
104
105This is a bug fix release. The detailed updates for WRF-ARW can be found at
106http://www.mmm.ucar.edu/wrf/users/wrfv3/updates-3.0.1.html.
107
108Online User's Guides have also been updated.
109
110======================================
111
112V3.0 Release Notes:
113------------------
114
115- For directions on compiling WRF, see below or Users Web page.
116- For more information on WRF V3 release, visit WRF Users home page
117  http://www.mmm.ucar.edu/wrf/users/
118- WRF V3 works with WPS, and SI is no longer supported.
119  Please see User' Guide for WPS.
120- WRF V3 executable does not work with wrfinput/wrfbdy produced by previous versions.
121- WRF V3 has removed one obsolete namelist variable, dyn_opt. Edit with caution.
122
123======================================
124
125WRF update history:
126
127- V2.0.1: May 21, 2004
128- V2.0.2: June 3, 2004
129- V2.0.3: Nov 12, 2004
130  V2.0.3.1: Dec 3, 2004
131- V2.1: August 4, 2005
132- V2.1.1: Nov 8, 2005
133- V2.1.2: Jan 27, 2006
134- V2.2: Dec 21, 2006
135- V2.2.1: Nov 1, 2007
136- V3.0: April 4, 2008
137- V3.0.1: August 5, 2008
138- V3.0.1.1: August 22, 2008
139- V3.1: April 9, 2009
140- V3.1.1: July 31, 2009
141- V3.2: March 31, 2010
142- V3.2.1: August 18, 2010
143- V3.3: April 6, 2011
144
145======================================
146
147How to compile and run?
148-----------------------
149
150- In WRFV3 directory, type 'configure' - this will create a configure.wrf
151  file that has appropriate compile options for the supported computers.
152
153  Note: WRF requires netCDF library. If your netCDF library is installed in
154        some odd directory, set environment variable NETCDF before you type
155        'configure'. For example,
156
157        setenv NETCDF /usr/local/netcdf-pgi
158
159- Type 'compile case_name' where you can find the case_names by simply typing
160  compile. The following are available:
161
162      compile em_b_wave
163      compile em_grav2d_x
164      compile em_heldsuarez
165      compile em_hill2d_x
166      compile em_les
167      compile em_quarter_ss
168      compile em_real
169      compile em_seabreeze2d_x
170      compile em_squall2d_x
171      compile em_squall2d_y
172      compile em_scm_xy
173      compile em_tropical_cyclone
174
175- If sucessful, this will create either real.exe or ideal.exe and wrf.exe
176  in directory main/, and the appropriate executables will be linked into
177  the test directoires under test/case_name, or run/.
178
179- cd to the appropriate test or run directory to run ideal/real/wrf.
180
181- If it is one of the idealized cases (b_wave, hill2d_x, grav2d_x, quarter_ss,
182  squall2d_x, squall2d_y, em_les or em_heldsuarez), cd the the appropriate directory, type
183
184  ./ideal.exe
185
186  to produce wrfinput_d01 file for wrf model. Then type
187
188  ./wrf.exe
189
190  to run.
191
192- If it is real-data case (real), place files from WPS (met_em.*)
193  in the appropriate directory, type
194
195  ./real.exe
196
197  to produce wrfbdy_d01 and wrfinput_d01. Then type
198
199  ./wrf.exe
200
201  to run.
202
203- If you use mpich, type
204
205  mpirun -np number-of-processors wrf.exe
206
207- For information on how to make nested runs, visit
208  http://www.mmm.ucar.edu/wrf/users/
209
210
211======================================
212
213What is in WRF V3?
214
215- Advanced Research WRF (ARW) solver: Eulerian mass, hydrostatic and non-hydrostatic
216  * Arakawa C-grid staggering
217  * Runge-Kutta 2nd and 3rd order timestep options
218  * scalar-conserving flux form for prognostic variables
219  * 2nd to 6th order advection options (horizontal and vertical)
220  * time-split small step for acoustic modes
221  * small step horizontally explicit, vertically implicit
222  * divergence damping option and vertical time off-centering
223  * external-mode filtering option for mass model
224  * hydrostatic option via namelist option
225  * positive-definite and monotonic advection for moisture, scalar, tke and chemical tracers
226  * global modeling capability on latitude-longitude grid
227  * digital filter initialization
228
229- Two-way nesting:
230  * multiple domains and multiple nest levels
231  * supports integer nest grid ratio
232  * feedback option for both odd and even nest grid ratios
233  * smoothing options
234
235- One-way nesting
236
237- Moving nest
238  * Specified move
239  * Automatic move using a mid-level vortex-following algorithm
240
241- Physics options:
242  * microphysics (Kessler/ WRF Single Moment 3, 5 and 6 classes / Lin et al./ Mibrandt 2-moment /
243    Eta Ferrier / Thompson / Goddard / 2-moment Morrison / WRF Double Moment 5 and 6 classes /
244    SBU-Lin 5-classes )
245  * cumulus parameterization (Kain-Fritsch with shallow convection /
246    Betts-Miller-Janjic / Grell-Devenyi ensemble / New Grell (with shallow convection option) /
247    Tiedtke (with shallow conv and momentum transport) / NSAS (with shallow conv and momentum transport) /
248    SAS (with shallow conv for ARW) / Zhang-McFarlane (with momentum transport) )
249  * UW shallow convection
250  * planetary boundary layer (Yosei University / Mellor-Yamada-Janjic / ACM2 / QNSE / MYNN / BouLac /
251    UW / TEMF )
252  * slab soil model (5-layer thermal diffusion / Noah land-surface model (4 levels) /
253    RUC LSM (6 levels) / Pleim-Xu (2 levels)
254  * Urban canopy model, BEP multi-layer and BEM  (works with Noah LSM, BEP and
255    BEM also requires MYJ or BouLac)
256  * longwave radiation (RRTM / CAM / RRTMG / new Goddard )
257  * shortwave radiation (simple MM5 scheme / old Goddard / CAM / RRTMG / new Goddard),
258    terrain slope and shading effect
259  * sub-grid turbulence (constant K diffusion/ 2-D Smagorinsky/ predicted TKE /
260    2-D, 6th order diffusion / Nonlinear Backscatter Anisotropic (NBA) sub-grid turbulence stress for LES )
261  * Rayleigh damping for w at the upper boundary layer
262  * gravity wave drag
263  * land-use categories determine surface properties; support for 24 category USGS and
264    20 category MODIS (Noah LSM only in V3.1)
265  * Options for modifying SST, sea ice, vegetation fraction, albedo, and deep soil temp
266    for long simulations
267  * fractional sea ice option for polar regions; modified snow/ice physics
268  * single-column ocean mixed layer model
269  * drag and enthalpy flux formulation for hurricane applications
270
271- Nudging:
272  * three-dimensional and surface analysis nudging
273  * observation nudging
274  * spectral nudging
275
276- Software
277
278  * Hierarchical software architecture that insulates scientific code
279    (Model Layer) from computer architecture (Driver Layer)
280  * Multi-level parallelism supporting shared-memory (OpenMP), distributed-memory (MPI),
281    and hybrid share/distributed modes of execution
282  * Active data registry: defines and manages model state fields, I/O,
283    nesting, configuration, and numerous other aspects of WRF through a single file,
284    called the Registry
285  * Two-way nesting:
286      Easy to extend: forcing and feedback of new fields specified by
287        editing a single table in the Registry
288      Efficient: 5-8% overhead on 64 processes of IBM
289      Moving nests.
290  * Enhanced I/O options:
291      NetCDF and Parallel HDF5 formats
292      Nine auxiliary input and history output streams separately controllable through the namelist
293      Special input streams for analysis and observation nudging
294      Output file names and time-stamps specifiable through namelist
295      Special output stream for 3DVAR
296  * Efficient execution on a range of computing platforms:
297      IBM SP systems, (e.g. NCAR "bluevista","blueice","bluefire" Power5-based system)
298      IBM Blue Gene
299      SGI Origin and Altix
300      Linux/Intel
301         IA64 MPP (HP Superdome, SGI Altix, NCSA Teragrid systems)
302         IA64 SMP
303         x86_64 (e.g. TACC's "Ranger", NOAA/GSD "wJet" )
304         PGI, Intel, Pathscale, gfortran, g95 compilers supported
305      Sun Solaris (single threaded and SMP)
306      Cray X1, X1e (vector), XT3/4 (Opteron)
307      Mac Intel/ppc, PGI/ifort/g95
308      NEC SX/8
309      HP-UX
310      Fujitsu VPP 5000
311  * RSL_LITE: communication layer, scalable to very large domains, supports nesting.
312  * I/O: NetCDF, parallel NetCDF (Argonne), HDF5, GRIB, raw binary, Quilting (asynchronous I/O), MCEL (coupling)
313  * ESMF Time Management, including exact arithmetic for fractional
314    time steps (no drift).
315  * ESMF integration - WRF can be run as an ESMF component.
316  * Improved documentation, both on-line (web based browsing tools) and in-line
317
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