Ancillary Data at GES DISC DAAC

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Ancillary Dataat GES DISC DAAC

• Point of Contact Carrie Phelps
• Ancillary data is support data
• input to create other datasets such as model
  assimilations
• data which can be used to validate other datasets
• mission field and test support data (24 x
  7 data services available upon request)

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Ancillary Data Sources

• Daily operational data transfer
• NCEP National Center for Environmental
  Prediction
• NESDIS National Environmental Satellite, Data
  and Information Service
• Data is available on-line monthly, then
  permanently archived off-line at DAAC

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AIRS Ancillary Data

• PREPQC quality-controlled observations
• packaged four times per day
• Aviation Model (AVN) Forecasts
• 03, 06, 09 hour forecasts
• 1 x 1 degree global horizontal resolution
• GEOS-DAS Goddard Earth Observing System - Data
  Assimilation System
• 36 vertical pressure levels (42 for ozone)
• 1 x 1.25 degree global horizontal resolution

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Ancillary Visualization Tools

• OASIS (Online AnalySIS) can currently be used to
  view PREPQC data
• AVN Model forecast data viewing will soon be
  operational
• GEOS-DAS data available after release
• AIRS, MODIS

• http//daac.gsfc.nasa.gov/atmodyn/online_analysi
  s

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Ancillary Visualization Tools

• The Online Gridded Data Viewer will also be used
  to display GEOS-DAS gridded data
• May be useful as an evaluation product for AIRS
  gridded data (after data mining)

• http//daac.gsfc.nasa.gov/atmodyn/online_analysi
  s

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Ancillary Data Webpage

• http//daac.gsfc.nasa.gov/TECHNICAL/larry_info

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GEOS-DAS Webpage

• http//daac.gsfc.nasa.gov/atmodyn/das