Re: [cf-satellite] Request for examples of swath data in netCDF files

• To: Aleksandar Jelenak <ajelenak@xxxxxxxxxxxx>, "cf-satellite@xxxxxxxxxxxxxxxx" <cf-satellite@xxxxxxxxxxxxxxxx>
• Subject: Re: [cf-satellite] Request for examples of swath data in netCDF files
• From: "Armstrong, Edward M (398G)" <Edward.M.Armstrong@xxxxxxxxxxxx>
• Date: Mon, 1 Aug 2016 17:41:09 +0000

Hi Alek,

Attached are a few ncdump examples of how the GHRSST L2Ps encode swath in 
netCDF4/CF/ACDD/ granules.

Pg 47 described how swath data are encoded in L2P datasets in the GHRSST Data 
Processing Specification version 2:

<ftp://podaac.jpl.nasa.gov/OceanTemperature/ghrsst/docs/GDS20r5.pdf>ftp://podaac.jpl.nasa.gov/OceanTemperature/ghrsst/docs/GDS20r5.pdf

From: 
<cf-satellite-bounces@xxxxxxxxxxxxxxxx<mailto:cf-satellite-bounces@xxxxxxxxxxxxxxxx>>
 on behalf of Aleksandar Jelenak 
<ajelenak@xxxxxxxxxxxx<mailto:ajelenak@xxxxxxxxxxxx>>
Date: Monday, August 1, 2016 at 7:11 AM
To: "cf-satellite@xxxxxxxxxxxxxxxx<mailto:cf-satellite@xxxxxxxxxxxxxxxx>" 
<cf-satellite@xxxxxxxxxxxxxxxx<mailto:cf-satellite@xxxxxxxxxxxxxxxx>>
Subject: [cf-satellite] Request for examples of swath data in netCDF files

Dear CF-satellite community:

The US National Science Foundation’s EarthCube program is funding 
aproject<http://earthcube.org/group/advancing-netcdf-cf> titled “Advancing 
netCDF-CF for the Geoscience Community” with the aim of preparing several 
extensions to the current CF convention. One of the planned extensions is about 
storing satellite swath data in the original instrument viewing geometry (often 
times referred to as Level 1 and Level 2 data). This topic has been discussed 
on the mailing list several times in the past and this time we intend to go all 
the way and submit a proposal to the CF governing body. The proposal’s aim is 
to support as many swath types as possible for data collected by any type of 
instrument aboard satellites and aircraft, including unmanned aerial vehicles.

This message is a request for input. In order for the proposal to 
comprehensively represent the current community practices in storing swath-like 
data we are asking for examples of your netCDF files. The best is to send us 
the output of a “ncdump -h” command or point us to sample files accessible via 
the Internet. All received samples will be added to 
thegithub.com/diwg/diwg<http://www.github.com/diwg/diwg> collection. In case of 
HDF5 files, send us the output of a “h5dump -A” command.

The currently anticipated timeline is to prepare a draft proposal by the end of 
2016 and invite community review. We will be posting important updates about 
the progress.

Thank you!

Aleksandar Jelenak, The HDF Group
David Santek, University of Wisconsin/SSEC
Ethan Davis, UCAR/Unidata

Attachment: binwTrQq2HsMV.bin
Description: 20140701000500-JPL-L2P_GHRSST-SSTskin-MODIS_A-D-v02.0-fv01.0.nc.ncdump

Attachment: bin3BE2p8LiZN.bin
Description: 20160720222000-OSPO-L2P_GHRSST-SSTskin-VIIRS_NPP-ACSPO_V2.40-v02.0-fv01.0.nc.ncdump