[NARCCAP-discuss] Projection problem

[Seth McGinnis]

Hi Risa,

Ah, yes I see.  Yes, the published data for rsds WRFG-cgcm3 is missing the year
2070.

We'll investigate and see whether we can get that filled in.  Thanks for
letting us know!

Cheers,

--Seth


On Wed, 29 Aug 2012 11:07:56 -0400
 Risa Patarasuk <risajook at ufl.edu> wrote:
>Dear Seth,
>
>Sorry, I forgot to tell you that it's only *rsds *variable for WRFG-cgcm3
>that doesn't have the values for 2070. Other variables work fine. Here is
>the file that we downloaded.
>
>http://tds.ucar.edu/thredds/fileServer/datazone/narccap/DATA/WRFG/cgcm3-future/table2/rsds_WRFG_cgcm3_2066010103.nc
>
>Yes, I am using ArcGIS v10 sp 3 to process netcdf to rater files. We are
>trying to see if CRCM files will work when I reproject the files. We will
>consult you if more problems arise.
>
>Thank you very much for your help.
>
>Risa
>
>On Thu, Aug 23, 2012 at 3:06 PM, Seth McGinnis <mcginnis at ucar.edu> wrote:
>
>> Hi Risa,
>>
>> It's always helpful to specify what software you're using, and which data
>> (models, runs, and variables) you're working with.  I'm guessing a little
>> with
>> these answers, but:
>>
>> Some CRCM files have projection metadata that's off by half a gridbox.  The
>> CRCM output should have false_easting=3450000 and false_northing=7450000.
>>  If
>> it doesn't, change those values and see if it solves the problem.  We're
>> working on fixing this in the published data, but republishing the
>> corrected
>> data is time-consuming, and it tends to get back-burnered.  Apologies.
>>
>> If you're using ArcGIS, the problem with the HRM3 data is that ArcMAP
>> doesn't
>> understand the Rotated Pole projection.  We've inquired with ESRI about
>> this
>> issue, but haven't heard any response.
>>
>> The WRFG-cgcm3 run should have data for 2070.  You may have a truncated
>> download; try downloading one of the 2066 files again to make sure you got
>> it
>> all.
>>
>> Cheers,
>>
>> --Seth
>>
>>
>>
>> On Thu, 23 Aug 2012 13:15:22 -0400
>>  Risa Patarasuk <risajook at ufl.edu> wrote:
>> >Dear NARCCAP users:
>> >
>> >I am just wondering if anyone has any problems projecting some NARCCAP
>> >models to another. Our research group has aggregate the data into monthly
>> >and we want to project all of the NARCCAP models to Albers NAD 83. Here
>> are
>> >the parameters:
>> >
>>
>>
>>PROJCS["NAD_1983_Albers",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],
>> >
>>
>>
>>PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Albers"],PARAMETER["False_Easting",0.0],PARAMETER["False_Northing",0.0],
>> >
>>
>>
>>PARAMETER["Central_Meridian",-96.0],PARAMETER["Standard_Parallel_1",29.5],PARAMETER["Standard_Parallel_2",45.5],PARAMETER["Latitude_Of_Origin",23.0],UNIT["Meter",1.0]]
>> >
>> >The models that we are having the problems with are:
>> >
>> >1) CRCM_CCSM model. When I opened it in ArcGIS, the layers don't line with
>> >with other data sets that we have.
>> >
>> >2) HRM3_HADCM3 model. When I converted it to raster, it says the
>> projection
>> >is 'undefined.' Shouldn't it be Rotated Pole?  I noticed in Panoply Win
>> >that there are some coordinate information missing compared to other
>> models.
>> >
>> >Another question: has anyone worked with WRFG_CGCM3 model? I don't see any
>> >data in 2070.
>> >
>> >Any idea/thoughts would be every much appreciated. Thank you.
>> >
>> >Risa
>> >
>> >
>> >--
>> >********************************************
>> >Risa Patarasuk, Ph.D.
>> >GIS Specalist, Pinemap Project
>> >Soil and Water Science Department
>> >GIS-Pedometrics Lab
>> >University of Florida
>> >Gainesville, FL 32611
>> >********************************************
>> >_______________________________________________
>> >narccap-discuss mailing list
>> >narccap-discuss at mailman.ucar.edu
>> >http://mailman.ucar.edu/mailman/listinfo/narccap-discuss
>>
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>
>
>
>-- 
>********************************************
>Risa Patarasuk, Ph.D.
>GIS Specalist, Pinemap Project
>Soil and Water Science Department
>GIS-Pedometrics Lab
>University of Florida
>Gainesville, FL 32611
>********************************************
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