ASCAT scatterometer ocean calibration

4 pages, 5 figures.-- © 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale...

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Bibliographic Details
Published in:IGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium
Main Authors: Verspeek, Jeroen, Stoffelen, Ad, Portabella, Marcos, Verhoef, Anton, Vogelzang, J.
Format: Book Part
Language:English
Published: Institute of Electrical and Electronics Engineers 2008
Subjects:
Online Access:http://hdl.handle.net/10261/81268
https://doi.org/10.1109/IGARSS.2008.4780074
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Summary:4 pages, 5 figures.-- © 2012 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works A new scatterometer, the so-called Advanced scatterometer (ASCAT), onboard MetOp-A satellite was successfully launched on October 19 2006. During the commissioning phase one of the main goals is to accurately calibrate the instrument. The radar backscatter has been calibrated using three ground-based transponders in February 2008. Calibration of the ASCAT retrieved winds over the ocean is done by comparing the backscatter measurement with backscatter values derived from collocated NWP winds. Using calibration corrections, ASCAT winds are produced routinely at KNMI since March 2007 as the first MetOp-A geophysical product. Ocean calibration results and scatterometer wind speed statistics show that the Ocean and Sea Ice Satellite Application Facility (OSISAF) wind product is of high quality Peer Reviewed