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Re: netCDF and ESRI



Its built in.

Ashraf Memon wrote:
Hi John,

If we run TDS server do we need Opendap or it is built in to TDS?

Thanks,
Ashraf


-----Original Message-----
From: John Caron [mailto:address@hidden
Sent: Friday, February 10, 2006 12:27 PM
To: Ashraf Memon
Cc: address@hidden
Subject: Re: netCDF and ESRI

Ashaf:

here are some CF files you can download:



http://www.unidata.ucar.edu/software/netcdf/examples/sresa1b_ncar_ccsm3_ 0_run1

_200001.nc


http://www.unidata.ucar.edu/software/netcdf/examples/ECMWF_ERA-40_subset .nc

http://www.unidata.ucar.edu/software/netcdf/examples/cami_0000-09-
01_64x128_L26_c030918.nc
http://www.unidata.ucar.edu/software/netcdf/examples/RUC.nc


http://www.unidata.ucar.edu/software/netcdf/examples/tos_O1_2001-2002.nc

Ashraf Memon wrote:


Chuck/John,

If you guys could compress some of the nc files and send it across I
will check it out in ArcGIS.

Thanks,
Ashraf

-----Original Message-----
From: John Caron [mailto:address@hidden
Sent: Monday, February 06, 2006 1:04 PM
To: address@hidden
Cc: Ashraf Memon
Subject: Re: netCDF and ESRI



Chuck Meertens wrote:



Hi John,
Ashraf Memon from SDSC will be here tomorrow
for the data workshop and has just received a beta
version of ArcGIS that has netCDF capability. Our existing
geophysics files do not work out of the box and I
wonder if you or Russ have any more documentation
on ESRI's implementation of netCDF that might be
helpful as we try to build compatible files that work
both for ArcGIS and IDV? It might be useful to
have for the discussion tomorrow morning.
Thanks and we look forward to seeing you tomorrow.
Chuck




Heres the message back from ESRI:


Basically if its CF compliant, "it should just work", and if it

doesn't,

we want to figure out why not. There are two common problems we've

run

into...

1) gridded data that is variably spaced along a coordinate axis.

People

want to read this in as an image, we will only read it as points or a
table.

2) there are several ways people specify their coordinate axes and

grid

mapping and varying degrees or attempts at CF compliance. In these

cases

we've had people send us the CDL and take a look and send them back
suggestions on how to be more CF compliant.

If you don't use any grid mapping and your data is lat/long WGS84, it
should also draw in the right place, since this is the coordinate

system

we are assuming if we find no grid mapping.

Just curious, are you getting questions internally from people at

NCAR

and UCAR working with the beta software, or general questions from
people who heard we were going to support netCDF?

Steve


-----Original Message----- From: John Caron [mailto:address@hidden Sent: Mon 2/6/2006 9:11 AM To: Steve Kopp Subject: ArcGISwith netCDF

Hi Steve:

Im getting inquiries about how to make netcdf files work with ArcGIS.

DO

you have a writeup anywhere that explains this, that I can point

people

to?


Thanks!









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