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Global Analysis of a 2 Year ERS-2 Wavemode Dataset Over the Ocean

König, Thomas and Lehner, Susanne and Schulz-Stellenfleth, Johannes (2007) Global Analysis of a 2 Year ERS-2 Wavemode Dataset Over the Ocean. In: Proceedings of IGARSS 2007, pp. 3281-3284. IGARSS 2007 Conference (Geoscience and Remote Sensing Symposium 2007), 2007-07-23 - 2007-07-28, Barcelona, Spain. ISBN 978-1-4244-1212-9. ISSN 10.1109/IGARSS.2007.4423545.

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Starting in 1991, the ERS-1 and (later) ERS-2 satellites have collected wavemode data over the global oceans whenever no image mode data acquisition was requested. Wavemode data are full resolution SAR data covering small areas of size 5km x 10km every 200km along the orbits thus forming a dataset giving information from all global oceans daily. In the scope of the WAVEATLAS ESA AO Project, ESA provided two years (Sep. 1998 – Nov. 2000) of raw ERS-2 wave mode data to DLR which were processed into more than one million single look complex images, so-called imagettes, using DLR's BSAR processor. The algorithms CWAVE and LISE were applied to estimate wind and wave parameters such as significant wave height, wind speed and sea surface elevation fields together with several single wave parameters. The paper presents global statistics with emphasis on wave parameters, namely significant wave height, single wave crest height, and wave height. Areal and seasonal distribution of high sea states is discussed and the relevance of the analysis for extreme sea state mapping is pointed out. As far as possible, the results are related to existing theoretical knowledge and compared to observational data (Hogben atlas) as well as model results. The outcome of this processing will be compiled into a new unique atlas on global waves and extreme events. It is planned to extend the atlas back to 1991 when ERS-1 was launched and forward to present times thus covering a more than 15 years period.

Item URL in elib:https://elib.dlr.de/48272/
Document Type:Conference or Workshop Item (Speech)
Title:Global Analysis of a 2 Year ERS-2 Wavemode Dataset Over the Ocean
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Schulz-Stellenfleth, JohannesUNSPECIFIEDUNSPECIFIED
Journal or Publication Title:Proceedings of IGARSS 2007
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 3281-3284
EditorsEmailEditor's ORCID iD
Keywords:ERS-2, wavemode dataset
Event Title:IGARSS 2007 Conference (Geoscience and Remote Sensing Symposium 2007)
Event Location:Barcelona, Spain
Event Type:international Conference
Event Dates:2007-07-23 - 2007-07-28
Organizer:IEEE Org.
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 Entwicklung und Erprobung von Verfahren zur Gewässerfernerkundung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Marine Remote Sensing
Deposited On:10 Apr 2008
Last Modified:15 Jan 2010 00:40

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