Li, Xiao-Ming and Lehner, Susanne and Bruns, Thomas (2014) Simultaneous Measurements by Advanced SAR and Radar Altimeter on Potential Improvement of Ocean Wave Model Assimilation. IEEE Transactions on Geoscience and Remote Sensing, 52 (5), pp. 2508-2518. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/TGRS.2013.2262137. ISSN 0196-2892.
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Official URL: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6522453
Abstract
Simultaneous measurements of significant wave height (SWH) obtained from two independent active microwave sensors of Radar Altimeter 2 (RA-2) and Advanced Synthetic Aperture Radar (ASAR) onboard the ENVIronmental SATellite (ENVISAT) are used for a global verification of ocean wave models (WAMs). In the present study, SWH is retrieved from ASAR wave mode data using the empirical algorithm called C-band WAVE algorithm for ENVISAT, which is capable of representing total SWH irrespective of the cutoff of SAR. Comparisons of two radar measurements with the reanalyses ERA-Interim model (with assimilation of RA-2 measurements) and the German operational WAM (Deutscher Wetterdienst Global Sea wave Model, without assimilation before 2008) show that both WAMs agree well with ASAR and RA-2 measurements. However, the discrepancies of agreement indicate to which extent that the assimilation of RA-2 measurements can improve the performance of WAMs. Moreover, differences in the comparisons of ASAR and RA-2 measurements with the same WAM of ERA-Interim reveal that, although assimilation of RA-2 significantly improves the accuracy of model on grids near the RA-2 tracks, the improvement decreases along with the increase of distance between model grids and RA-2 tracks.
Item URL in elib: | https://elib.dlr.de/82764/ | ||||||||||||
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Document Type: | Article | ||||||||||||
Additional Information: | INSPEC Accession Number: 14131319 | ||||||||||||
Title: | Simultaneous Measurements by Advanced SAR and Radar Altimeter on Potential Improvement of Ocean Wave Model Assimilation | ||||||||||||
Authors: |
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Date: | 2014 | ||||||||||||
Journal or Publication Title: | IEEE Transactions on Geoscience and Remote Sensing | ||||||||||||
Refereed publication: | Yes | ||||||||||||
Open Access: | Yes | ||||||||||||
Gold Open Access: | No | ||||||||||||
In SCOPUS: | Yes | ||||||||||||
In ISI Web of Science: | Yes | ||||||||||||
Volume: | 52 | ||||||||||||
DOI : | 10.1109/TGRS.2013.2262137 | ||||||||||||
Page Range: | pp. 2508-2518 | ||||||||||||
Editors: |
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Publisher: | IEEE - Institute of Electrical and Electronics Engineers | ||||||||||||
ISSN: | 0196-2892 | ||||||||||||
Status: | Published | ||||||||||||
Keywords: | Radar Altimeter, sea surface wave, SAR, wave modeling | ||||||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||||||
HGF - Program: | Space | ||||||||||||
HGF - Program Themes: | Earth Observation | ||||||||||||
DLR - Research area: | Raumfahrt | ||||||||||||
DLR - Program: | R EO - Earth Observation | ||||||||||||
DLR - Research theme (Project): | R - Vorhaben Maritime Anwendungen GMES/Koordination (old) | ||||||||||||
Location: | Oberpfaffenhofen | ||||||||||||
Institutes and Institutions: | Remote Sensing Technology Institute > SAR Signal Processing | ||||||||||||
Deposited By: | Li, Xiao Ming | ||||||||||||
Deposited On: | 12 Jun 2013 08:36 | ||||||||||||
Last Modified: | 31 Jul 2019 19:41 |
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