[NARCCAP-discuss] Projection problem

[Risa Patarasuk]

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
********************************************