Re: NetCDF/Java at NSIDC

Hi John,

Thanks, I understand your predicament. A bare bones IOSP would certainly 
help, but would the GrADS IOSP also be a good model to look at?
Is getting the projection information into the IOSP the biggest challenge?
What I'm after right now is enough information to scope out a proposal 
to NASA.

Best wishes,
SiriJodha

On 4/1/13 8:45 AM, John Caron wrote:
> Hi Siri:
>
> Yes, but I cant do it until probably end of May. Im gone for 3 weeks
> starting next week, so I will contact you when Im back.
>
> Ill probably create a bare bones IOSP for you that your programmers can
> study a bit, then we can do a few hours together to help you start to
> extend it to more of your datasets. How does that sound?
>
> If you need any help before then, contact
> address@hidden, and others at Unidata will help.
>
> John
>
> On 3/30/2013 9:13 AM, Siri Jodha Singh Khalsa wrote:
> > Hi John,
> >
> > Thanks for what you've done so far in looking at the datasets we're
> > considering working with using the netCDF/JAVA stack.  You brought up
> > a good point about the projection information.  I wasn't expecting you
> > to do any coding, but I'm no closer to understanding what level of
> > effort is required to get the software working with these data. Let me
> > go back to my original question - would you be willing to give an
> > orientation talk to our developers?
> >
> > Best wishes,
> > SiriJodha
> >
> > On 3/29/13 3:18 PM, John Caron wrote:
> > > Hi Siri:
> > >
> > > Sorry, Ive been swamped. The IOSP work isnt particularly hard. I thought
> > > I might get one done to show you, but didnt have time. I can give you a
> > > sample IOSP that you could continue to develop. Probably couldnt get it
> > > to you until May though.
> > >
> > > Im not sure what I can tell you more concretely at this moment. If you
> > > want to include us for a part of the Access proposal $, we could
> > > continue to provide you with support as you develop the project.
> > >
> > > John
> > >
> > > On 3/24/2013 3:24 PM, Siri Jodha Singh Khalsa wrote:
> > > > Hi John,
> > > >
> > > > The notice of intent to submit a proposal is due in about a week.
> > > >
> > > > Any progress on scoping IOSPs for the mentioned data types?
> > > >
> > > > Thanks,
> > > > SiriJodha
> > > >
> > > > On 3/12/13 5:35 PM, John Caron wrote:
> > > > > Hi Siri:
> > > > >
> > > > > trying some random ones, i notice that the last link
> > > > >
> > > > > <https://lpdaac.usgs.gov/lpdaac/products/modis_products_table/land_surface_temperature_emissivity/8_day_l3_global_1km/mod11a2>
> > > > >
> > > > >
> > > > >
> > > > > is broken.
> > > > >
> > > > > i assume all the others starting with NSIDC are in your bespoke
> > > > > format, eg
> > > > >
> > > > > "Near-Real-Time DMSP SSM/I-SSMIS Pathfinder Daily EASE-Grid Brightness
> > > > > Temperatures"
> > > > >
> > > > > is not in DMSP format, but uses this format:
> > > > >
> > > > > i also vaguely remember that you had a java library that implemented
> > > > > your projections. is that available?
> > > > >
> > > > > John
> > > > >
> > > > >
> > > > >
> > > > > On 3/12/2013 4:57 PM, Siri Jodha Khalsa wrote:
> > > > > > Hi John,
> > > > > >
> > > > > > I'll point you to some guide documents (which are maintained for
> > > > > > every
> > > > > > dataset we distribute). Data access is pointed to from these pages.
> > > > > > Actually, what we'd like to do, eventually, is rebuild SAGE
> > > > > > <http://nsidc.org/data/sage/index.action> using services enabled
> > > > > > through
> > > > > > netCDF. Right now SAGE is based on a lot of custom IDL code using
> > > > > > a java
> > > > > > db bridge to access data.  If you follow the sage link, and look
> > > > > > at the
> > > > > > user guide tab, you'll see links to the data catalog pages.  But, I
> > > > > > reproduce here:
> > > > > >
> > > > > > DIF ID
> > > > > >
> > > > > > Data Set Title
> > > > > > NSIDC-0032
> > > > > >       DMSP SSM/I Pathfinder Daily EASE-Grid Brightness Temperatures
> > > > > > <http://nsidc.org/data/docs/daac/nsidc0032_ssmi_ease_tbs.gd.html>
> > > > > > NSIDC-0066
> > > > > >       AVHRR Polar Pathfinder Twice-Daily 5 km EASE-Grid Composites
> > > > > > <http://nsidc.org/data/docs/daac/nsidc0066_avhrr_5km.gd.html>
> > > > > > NSIDC-0218
> > > > > >       Greenland Ice Sheet Melt Characteristics Derived from Passive
> > > > > > Microwave
> > > > > > Data
> > > > > > <http://nsidc.org/data/docs/daac/parca/nsidc0218_greenland_melt_pm/>
> > > > > > NSIDC-0301
> > > > > >       AMSR-E/Aqua Daily EASE-Grid Brightness Temperatures
> > > > > > <http://nsidc.org/data/docs/daac/nsidc0301_amsre_gridded_tb.gd.html>
> > > > > > NSIDC-0305
> > > > > >       GLAS/ICESat 1 km Laser Altimetry Digital Elevation Model of
> > > > > > Greenland
> > > > > > <http://nsidc.org/data/docs/daac/nsidc0304_0305_glas_dems.gd.html>
> > > > > > NSIDC-0342
> > > > > >       Near-Real-Time DMSP SSM/I-SSMIS Pathfinder Daily EASE-Grid
> > > > > > Brightness
> > > > > > Temperatures
> > > > > > <http://nsidc.org/data/docs/daac/nsidc_0342_nrt_ssmi_ease_tb/index.html>
> > > > > >
> > > > > > MOD11A2
> > > > > >       MODIS/Terra Land Surface Temperature & Emissivity 8-Day L3
> > > > > > Global
> > > > > > 1 km
> > > > > > SIN Grid V005
> > > > > > <https://lpdaac.usgs.gov/lpdaac/products/modis_products_table/land_surface_temperature_emissivity/8_day_l3_global_1km/mod11a2>
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > let me know what you think.
> > > > > >
> > > > > > sjs
> > > > > >
> > > > > > On 3/12/13 4:38 PM, John Caron wrote:
> > > > > > > cool!
> > > > > > >
> > > > > > > send me some sample files (and docs) so i can scope the difficulty.
> > > > > > >
> > > > > > > On 3/12/2013 4:18 PM, Siri Jodha Khalsa wrote:
> > > > > > > > Hi John,
> > > > > > > >
> > > > > > > > I've gotten a tentative green light from NSIDC to pursue funding
> > > > > > > > under
> > > > > > > > the NASA ROSES ACCESS call to build services on our heritage SSM/I
> > > > > > > > (binary formatted) data as well as possibly our EOS HDF4 and HDF5
> > > > > > > > data.
> > > > > > > > The awards are relatively small and there is some skepticism here
> > > > > > > > regarding the effort it will take to get the library up and
> > > > > > > > running on
> > > > > > > > our data.
> > > > > > > >
> > > > > > > > Would you be willing to visit NSIDC to talk with some developers to
> > > > > > > > describe what would be involved, and the benefits that would be
> > > > > > > > realized
> > > > > > > > through the netCDF/Java stack.
> > > > > > > >
> > > > > > > > Cheers,
> > > > > > > > SiriJodha
> > > > > > --
> > > > > > Siri-Jodha Singh KHALSA, Ph.D., SMIEEE
> > > > > > National Snow and Ice Data Center
> > > > > > University of Colorado
> > > > > > Boulder, CO 80309-0449 Phone: 1-303-492-1445 GV: 1-303-736-9976
> > > > > > http://cires.colorado.edu/~khalsa
> > > > > --
> > > > > SiriJodha Singh KHALSA, Ph.D.
> > > > > Cooperative Institute for Research in Environmental Sciences
> > > > > University of Colorado, Boulder, CO 80309-0449
> > > > > Office: 1-303-492-1445 GV: 1-303-736-9976
> > > > > http://cires.colorado.edu/~khalsa


--
SiriJodha Singh KHALSA, Ph.D.
Cooperative Institute for Research in Environmental Sciences
University of Colorado, Boulder, CO 80309-0449
Office: 1-303-492-1445 GV: 1-303-736-9976
http://cires.colorado.edu/~khalsa