Another option is to use GDAL / FWTools to convert from GeoTIFF to
NetCDF or HDF. Check out 'gdal_translate':
http://www.gdal.org/gdal_translate.html
Example output formats: (from typing just gdal_translate):
GMT: GMT NetCDF Grid Format
netCDF: Network Common Data Format
HDF4Image: HDF4 Dataset
Just a guess, but this might be all that is needed to convert:
gdal_translate -of netCDF test.tif test.nc
Then use NCML to clean up any CF-compliance issues and aggregate the
files. The NCML stuff could be done dynamically by the TDS or offline
using NCMLReader and FileWriter .
Steve
Don Murray said the following on 3/24/2009 8:35 AM:
> I believe that the GeoTools library can read and write GeoTiffs and
> is based in part on the GDAL library. You might be able to use that
> as a basis for an IOSP.
>
> Don
>
> John Caron wrote:
>> Hi Pauline:
>>
>> NJ library can write GeoTIFF in a limited number of projections, but
>> theres no support for reading
>> geotiff into the CDM. It could be done if someone wanted to write the
>> IOSP.
>>
>> Its hard to write a general GeoTIFF reader well because of the
>> thousands of projections one would in
>> principle need to support. Also, theres no canonical way to store
>> time and vertical levels, and no
>> one apparently in charge of the standard for many years now. For
>> these reasons we have decided not
>> to invest much time into that format.
>>
>> If I had to do it I would consider a jni interface to GDAL.
>>
>> Pauline Mak wrote:
>>> Hi all,
>>>
>>> I've been asked to check whether TDS supports GeoTiff files from one of
>>> our clients. They have thousands of these files and would like a nice
>>> way to aggregate them to serve it out. I tried adding a file to the
>>> TDS
>>> catalog, but it wasn't able to read the file (invalid NetCDF file).
>>> However, in the NetCDF javadoc, there is a geotiff class. Then looking
>>> at the NetCDF Java 4.0 feature list, it has only listed *generation* of
>>> GeoTiff files. Is it likely that TDS will support GeoTiff sometime in
>>> the future? I did also find a few pages with GDAL OPeNDAP Server, but
>>> can't seem to locate a copy of the server that I can install and have a
>>> look at...
>>>
>>> Cheers,
>>>
>>> -Pauline.
>>>
>>
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>
--
Steve Ansari
Physical Scientist
NOAA's National Climatic Data Center
Veach-Baley Federal Building
151 Patton Avenue
Asheville, NC 28801
Ph: 828-271-4611
Fax: 828-271-4328
