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Operational processing of AVHRR data at DFD

Tungalagsaikhan, Padsuren and Günther, Kurt P. and Gesell, Gerhard and Dech, Stefan W. and Ruppert, Thomas (2003) Operational processing of AVHRR data at DFD. In: Publikationen der Deutschen Gesellschaft für Photogrammetrie, Fernerkundung und Geoinformation, Bd. 12, pp. 435-449. 23. Wissenschaftlich - Technische Jahrestagung der DGPF, 9.- 11. September 2003, Bochum, Germany.

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Abstract

The German Remote Sensing Data Centre (DFD) of the German Aerospace Centre (DLR) has been receiving satellite data from the NOAA POES satellites in High Resolution Picture Transmission (HRPT) mode since November 1981 to serve the needs of the national and international user community. After reception of the AVHRR data a standardised preprocessing routine delivers calibrated and navigated data. These level 1 data are used for generating RGB - quicklooks overlaid with coastlines, and so-called media products showing wide parts of Central Europe in predefined annotated map projections. The level 1 data are also used for generating value-added products such as the “Normalised Difference Vegetation Index” of Europe, the sea surface temperature of European seas and the land surface temperature of Europe representing a day-time or night-time land surface temperature. For all value-added products different routines, such as automatic cloud masking using APOLLO software, precise geo-referencing, including land-sea mask and compositing, are necessary (level 2 data). The level 2 data are used for deriving daily, weekly and monthly level 3 products which are accessible by the internet using a user-friendly Web portal. More than 65,000 scenes (as of May 2003) have been received since 1981 at Oberpfaffenhofen covering the station's visibility. Depending on the actual track (eastern, central and western) being received, the scenes cover different areas, reaching from Spitzbergen in the north to the Northern Sahara in the south and from the Central Atlantic in the west to Central Asia in the east. This paper addresses aspects for daily operational processing, including the automatic supervision of the processing chain, for generating level 1 to 3 products , automatic failure identification and quality assurance. Future processing algorithms (automatic atmospheric correction, generation of cloud parameters and LAI time series), which are in a developmental stage, will also be discussed.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Operational processing of AVHRR data at DFD
Authors:
AuthorsInstitution or Email of Authors
Tungalagsaikhan, PadsurenUNSPECIFIED
Günther, Kurt P.UNSPECIFIED
Gesell, GerhardUNSPECIFIED
Dech, Stefan W.UNSPECIFIED
Ruppert, ThomasUNSPECIFIED
Date:2003
Journal or Publication Title:Publikationen der Deutschen Gesellschaft für Photogrammetrie, Fernerkundung und Geoinformation
Refereed publication:No
In ISI Web of Science:No
Volume:Bd. 12
Page Range:pp. 435-449
Editors:
EditorsEmail
DGPF, UNSPECIFIED
Series Name:23. Wissenschaftlich - Technische Jahrestagung der DGPF
Status:Published
Keywords:AVHRR, operational processing, NDVI, SST, LST
Event Title:23. Wissenschaftlich - Technische Jahrestagung der DGPF
Event Location:Bochum, Germany
Event Type:international Conference
Event Dates:9.- 11. September 2003
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Datenprodukte für Klima- und Atmosphärenanwendungen (old)
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Climate and Atmospheric Products
Deposited By: Dr.rer.nat. Kurt Günther
Deposited On:09 Aug 2006
Last Modified:12 Dec 2013 20:20

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