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Frequently Asked QuestionsRAWINS
The imslcnv library is only needed if you choose to use IWTSCM = 4 (i.e. the multiquadric interpolation scheme). Also see item 4 below. No. RAWINS expect both the mandantory and significant levels data in the nbogus file. If only mandatory data are available for a station, then give only one significant level for that station with all variables set to 99999.9. For example, in Version
3 The compile of this program uses about 250 CPU sec on J90. It takes about 160 sec to create one domain output and two time periods for the test case. For a bigger domain over US, 114x114x23 (after expansion) in dimension, it uses about 505 CPU sec and 8.8 MW of memory to create two-time-period output. The cost on J90 (paiute) is about 0.24 GAUs. The cost will significantly increase if MQD objective analysis is selected. The latest V2/V3 Rawins program has been updated to become one-source program for both Cray and workstations. You may obtain the latest Version 3 Rawins program from anonymous ftp. The tar file name is RAWINS.TAR.gz. Note though, the Rawins program only uses NCAR archived data. If you would like to use Rawins on a workstation, remember to convert the data read on Cray to non-cos-blocked form before you move them to workstation, or use msread -fBI option to do msread. Yes, you can. The recently updated rawins program can be run without NCAR Graphics and/or NETCDF options. Please see README file inside the Rawins program tar file. Yes. A new program has been developed and is undergoing testing at the moment. The new program is called little_r. For users who have need to input dataset other than those archived at NCAR, we recommend this program. However, this program does not yet have all the functions that Rawins support. You may obtain little_r program from anonymous ftp. The tar file name is little_r.tar.gz. If your RAWINS job stops with the following type of error: REPORT TYPE IRTYP = 511 NOT KNOWN. STOPPING It usually implies that you haven't assigned the correct files in the job script. For example, you may have placed B list files (surface data) in InSfc6h, or E list files in InSfc3h. Since April 1997, the surface obs data archived at NCAR that used by Rawins have had some changes. NCAR discontinued the A and B lists, and started E and F lists. The E list now contains 6 hourly data but includes +/- 3 hour data, while the F list now has only 6 hourly ship data (plus +/- 3 hour data). However the source code of Rawins is only able to access the 6 hourly data, not the +/- 3 hourly data because the header information isn't what the Rawins source code is looking for. A workaround for this problem is now available (thanks to Kesu Zhang of University of New York at Albany). First, download a modified version of getraw.F for either V2 or V3. Then modify your job script. Use the same input file(s) for InSfc6h and InSfc3h, and create a new script variable InShip for the ship data from list F, so that the part of the script looks like: set InSfc6h =
( SFC6HR_A ) # see catalog.sfc,
list E Go to near the end of the job script, and change the part: if ( -e sfc3hr$LETTERS[${NUMFIL}]
) then to if ( $NUMFIL <= ${#InShip}
) then An alternative to 'solve' the problem is NOT to access the 3 hourly land data. If you are not interested in doing 3-hourly surface analysis FDDA in MM5, there is no need to access 3 hourly data. In this case, set in the Rawins job script, set InSfc6h = ( /DSS/Yxxxxx
) ! from list E and in the namelist, set ISFCS3 = F, # ACQUIRE
AND ANALYZE SHIPS AND BUOYS If you set F4D = T, you will need to fill InfSfc3h with list F data. Then you will get 6 hourly surface analysis. But we don't recommend you do 6 hourly surface analysis nudging in MM5.
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