Transcript No Slide Title

WGISS ATT
Data Format Documents,
Processes, and Examples
Stuart Doescher, USGS
WGISS-18
September 2004
Beijing, China
Background
• The “Guidelines on Standard Formats and Data Description
Languages Version 1.0; 18 May 1998” document has served as a
description of formats as they existed in the mid and late 1990’s.
• The guideline recognized that data formats vary, but there is a real
need to exchange data between archive facilities and agencies.
• The original guideline addressed the dominant formats at that time.
• It has been helpful to new systems and archive migration projects,
but is now becoming dated.
The 1998 Guideline
Table of Contents
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Introduction
Concepts
Standard Generic Formats (of the time)
Data Descriptions
Additional Information
Other Aspects
Conclusions
(http://wgiss.ceos.org/tssg/archive.doc/formguid.doc)
The 1998 Guideline
Formats included
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netCDF (http://nssdc.gsfc.nasa.gov/cdf/cdf_home.html)
HDF (http://hdf.ncsa.uiuc.edu/)
SDTS (http://mcmcweb.er.usgs.gov/sdts/)
FITS (http://heasarc.gsfc.nasa.gov/docs/heasarc/fits.htm)
GIF (http://www.webstyleguide.com/graphics/gifs.html)
ISO/IEC 12087 (http://164.214.2.51/ntb/baseline/docs/biif_5/)
SFDU (http://ssdoo.gsfc.nasa.gov/nost/sfdu_office.html)
GeoTIFF
(http://www.remotesensing.org/geotiff/spec/geotiffhome.html)
There are additional formats
CEOS ICF (Base-band Archive Inter-Change Format) - 2001
GERALD (Generic Exchange Raw Archive Level Data)
HRVIR (High Resolution Visible Infra-Red)
ERS-SAR (Earth Resource System Synthetic Aperture Radar)
VEXCEL (proprietary)
SPOT
MPDS (Mobile Packet Data Service)
FRED (Framed Raw Expanded Data)
LTWG (Landsat Technical Working Group)
EAF (Existing Archive Format)
CCF (Computer Compatible Format)
AND OTHERS ………
The basic question seems to be:
What does the next version of the WGISS
ATT Guideline on Formats contain and how
is it presented?
To get to these questions lets look at an example.
Consider a sampling of
product formats used by the
USGS
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NDF (NLAPS Data Format)
GEOTIFF
DTED
Level 1b
HDF (Hierachical Data Format)
As an example the
ATT Format List could include
Agency
Data
Format
URL
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USGS Landsat 7 NDF
http://landsat7.usgs.gov/documents/NLAPSII.pdf
USGS
Landsat 7 GEOTIFF
http://www.remotesensing.org/geotiff/spec/
USGS
SRTM
DTED
http://www.rivix.com/DTED.cfm
NOAA
AVHRR
Level 1B
http://noaasis.noaa.gov/NOAASIS/ml/avhrr.html
NASA
MODIS
HDF
http://hdf.ncsa.uiuc.edu/
NOAA
Nomads
Grib
http://www.nco.ncep.noaa.gov/pmb/docs/on388/
Comments??
ATT will need this type of list of formats as a
starter no matter what ever else we do.
As a minimum will publish list at WGISS web
Action ??
• Agencies submit their list of formats
with (agency, data type, format, URL or
Document) by Feb 1, 2005 to
[email protected]
• ATT will publish the list on the Web at
http://wgiss.ceos.org/tssg/archive.html
• ATT will present results of action at
WGISS – 19 and recommend next steps.