1 / 19

ISCCP Central Archive: NCDC Update

ISCCP Central Archive: NCDC Update. Ken Knapp, John Bates and Hilawe Semunegus NOAA/NCDC, Asheville, NC. Archive Data B1 Inventory B1 Backfilling Products interoperability November follow up. B1 stewardship Overview Rescue Data QA/QC Calibration Expansion. Overview. Global

nicoleharris
Download Presentation

ISCCP Central Archive: NCDC Update

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. ISCCP Central Archive:NCDC Update Ken Knapp, John Bates and Hilawe Semunegus NOAA/NCDC, Asheville, NC

  2. Archive Data B1 Inventory B1 Backfilling Products interoperability November follow up B1 stewardship Overview Rescue Data QA/QC Calibration Expansion Overview

  3. Global Processing Center GISS GOES-5,6,7,8,9,10,11,12 Meteosat-2,3,4,5,6,7,8,9 GMS-1,2,3,4,5 MTSAT-1R FY-2C B2 B2 Satellite Processing Centers NOAA-7,8,9,10,11, 12,14,15,16,17,18 B2,B3 (All satellites) Products (C,D Data) B1 JMA CIRA EUMETSAT AES UWS NOAA ISCCP Central Archive (NCDC) GOES-5,6,7,8,9,10,11,12 Meteosat-2,3,4,5,6,7,8,9 GMS-1,2,3,4,5 MTSAT-1R, 2 FY-2C ISCCP data at NCDC

  4. ICA Status • Automated scripts monitor incoming data files • Files are counted and feedback provided in form of email • Log files are available to SPC • Instructions provided within the email • Performed for current and previous month

  5. ISCCP Central ArchivePercent archived (9/07-8/08)

  6. B1 Status - 2008 29 satellites B1 Inventory • NCDC received B1 data for… • GOES 11/12 • MET 7/8/9 • MTSAT 1R/2 • FY2 C • Changes in 2007 • None • Polar changes • none

  7. New access … User’s Site Personal copy NCDC ISCCP Data T D S http ftp I/O NetCDF-Java library Data analysis ASCII Raw NetCDF ISCCP Data Raw format • Data in fewer locations • Simplified I/O • User downloads only requested data ftp For archive GISS ISCCP Data Raw format

  8. Product archive and access • Online archive with access to • Raw data (standard FTP) • Many formats through Unidata’s Thredds Data Server (TDS)

  9. Incomplete tasks (from November 2006)… • Fill ISCCP B1 GOES gaps of 5 days or more from CLASS • Complete navigation study • AVHRR data for GPCP • EUMETSAT reprocessed entire B1 record?

  10. Future work (from Sept. 2007) • ICA • Redesign B1U format • netCDF4 • Fill GOES B1 gaps where possible • Continued development of TDS for GEWEX products • Stewardship • Complete ISCCP Cloud mask algorithm for B1 files. • Test navigation correction algorithm • Water vapor recalibration • new reference source … AIRS?? • Visible calibration analysis

  11. Rescue • Format • Reading the data • New EUMETSAT data • Navigation • Figuring out where a pixel is • Calibration • Determining the temperature or reflectance

  12. ISCCP B1 PublicationSubmitted to JARS SPIE’s Journal of Applied Remote Sensing

  13. JARS paper:analyzed visible calibration

  14. Overview: ISCCP B1 Data • Data • Spectral radiances at Visible and Infrared wavelengths • Raw data … not products • Temporal Data Coverage • 1978 to present • Spatial Data Coverage • Global at ~10 km resolution • Satellites • GOES, GMS, Meteosat, MTSAT-1R, FY2-C • Total Volume ~1.5 TB

  15. Global ISCCP B1 Browse SystemDynamic pages

  16. Calibration: Water vapor • Reference satellite … • HIRS Pathfinder All Sky data • 1983-2005 • Footprint match-ups • Use Lei Shi’s correction to map new HIRS Tb to old wavelength

  17. Summary of work • Promoting scientific use of B1 data • Supporting GEWEX projects • Providing support for new formats as needed • New EUMETSAT format for replacement files

  18. Summary of remaining issues • Sporadic data from: • FY2-C • GOES-11 • MET-9 • Reprocess entire GOES B1 archive from CLASS? • [See future work]

  19. Future work • Redesign B1U format • netCDF4 • Fill GOES B1 gaps where possible • Test navigation correction algorithm • Water vapor recalibration • new reference source … AIRS?? • Visible calibration analysis • Continued development of TDS for GEWEX products

More Related