AVWG Meeting

1
AVDC Update

• B. R. Bojkov and E. Hilsenrath

2
Current Status

• AVDC opened to users February 10, 2005
• Supported AVE Houston and PAVE
• Web access only http//avdc.gsfc.nasa.gov
• Access restrictions data protocol
• As of February 25
• 52 registered users
• 85 Gb of data

3
Available Data

• Daily updates
• AVE and INTEX-NA aircraft missions (ESPO and
  LaRC archives)
• Envisat Cal/Val groundbased data (access
  restrictions, pending agreement with ESA)
• Collection of supporting data
• Canadian groundbased data for PAVE
• Satellite data (NOAA-16 SBUV/2)

4
Available Aura Subsets

• Provisional Aura data (protocol restricted
  access)
• Sources Instrument teams and GES-DAAC
• MLS
• L2 data for AVE and PAVE
• OMI
• TOMS like OVP files from L2 (460 stations, 2005
  data)
• Gridded data (TOMS like 1o ? 1.25o)
• NO2 images (PAVE)
• TES
• L1b step and stare data for AVE and PAVE
• L2 coming soon

5
Satellite FOV Predictions

• 5-day FOV predictions generated by AVDC
• HIRDLS, MLS, OMI and TES (global survey)
• MLS within 3.30.8km, interpolated 0.60.8km
• TES within lt2s (lt14km)
• 5-day Aqua and Aura sub-satellite tracks
• Other FOVs possible on request (mission/campaign
  planning)
• 3-month OMI prediction generated 1st of every
  month
• UAV support (March/April)
• Distribution may be curtailed/restricted due to
  national security

6
Plans/Up and Coming
7
Validation Data

• Transfer and ingest into RDB
• NDSC data (MWR, LIDAR, FTIR, etc.)
• Ozonesondes (SHADOZ, INTEX, other)
• Dobson/Brewer data
• MOZAIC aircraft data
• NRA and OMI AO data
• Satellite data SBUV/2, Envisat instrument
  subsets (AO)
• Gradual phase in through June
• Liaisons
• Data/station status update required

8
Tools

• Relational Database (RDB)
• For AVDC/Envisat type HDF files only
• Automatic ingestion after upload and error
  notifications
• Fully searchable, including 4-D (March)
• Enable match-ups with actual Aura FOVs (April)
• HDF conversion tools to be released shortly
• Convert ASCII into AVDC/Envisat HDF (incl.
  tabular data, Ames, SHADOZ)
• Read and QA HDF 4.x files
• Linux, OSx and Windows 2000/XP
• IDL read/write routines under development
• Supporting documentation
• HDF issues, code and metadata

9
Aura Data Subsets

• Aura provisional data available through AVDC
• TES step and stare L2 data at the AVDC
• Expected Summer 2005
• Subsetting through AVDC for validation
• Collaborative effort with GES-DAAC
• GES-DAAC subsetting tool thoroughly validated for
  all Aura instruments (incl. TES)
• OVP, campaigns, interesting days, etc.
• Contact AVDC for information

10
Summary

• AVDC is operational
• Provisional Aura data online
• Many tools, functionalities and datasets to be
  phased in over the next months
• Liaison status/update required
• Reminder
• Sign-up
• Validation data providers have access to AVDC