Calibrating SeaWinds and QuikSCAT scatterometers using natural land targets
SeaWinds-on-ADEOS-2 (SeaWinds) scatterometers measure the normalized radar backscatter ( ) of the earth’s surface. These identical radar sensors are on different spaceborne platforms in similar orbits. QuikSCAT and SeaWinds data are used to infer near-surface wind vectors, polar sea-ice extent, pola...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.391.7269 2023-05-15T18:18:13+02:00 Calibrating SeaWinds and QuikSCAT scatterometers using natural land targets Lukas B. Kunz Student Member David G. Long Senior Member The Pennsylvania State University CiteSeerX Archives 2005 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.391.7269 http://www.mers.byu.edu/long/papers/GRSL2005AprKunz.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.391.7269 http://www.mers.byu.edu/long/papers/GRSL2005AprKunz.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.mers.byu.edu/long/papers/GRSL2005AprKunz.pdf text 2005 ftciteseerx 2016-01-08T02:17:17Z SeaWinds-on-ADEOS-2 (SeaWinds) scatterometers measure the normalized radar backscatter ( ) of the earth’s surface. These identical radar sensors are on different spaceborne platforms in similar orbits. QuikSCAT and SeaWinds data are used to infer near-surface wind vectors, polar sea-ice extent, polar-ice melt events, etc. In order to verify the relative calibration of these sensors, a simple cross calibration based on land backscatter measurements is performed. A first-order polynomial model is used to remove the incidence angle dependence of for selected regions of the Amazon rainforest and the Sahara Desert. It is shown that the two sensors are well-calibrated to each other and require no bias corrections. Additionally, evidence of a diurnal cycle in the Amazon rainforest backscatter is given. Index Terms—Amazon forest, calibration, QuikSCAT, radar cross section, SeaWinds. Text Sea ice Unknown |
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Open Polar |
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English |
description |
SeaWinds-on-ADEOS-2 (SeaWinds) scatterometers measure the normalized radar backscatter ( ) of the earth’s surface. These identical radar sensors are on different spaceborne platforms in similar orbits. QuikSCAT and SeaWinds data are used to infer near-surface wind vectors, polar sea-ice extent, polar-ice melt events, etc. In order to verify the relative calibration of these sensors, a simple cross calibration based on land backscatter measurements is performed. A first-order polynomial model is used to remove the incidence angle dependence of for selected regions of the Amazon rainforest and the Sahara Desert. It is shown that the two sensors are well-calibrated to each other and require no bias corrections. Additionally, evidence of a diurnal cycle in the Amazon rainforest backscatter is given. Index Terms—Amazon forest, calibration, QuikSCAT, radar cross section, SeaWinds. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Lukas B. Kunz Student Member David G. Long Senior Member |
spellingShingle |
Lukas B. Kunz Student Member David G. Long Senior Member Calibrating SeaWinds and QuikSCAT scatterometers using natural land targets |
author_facet |
Lukas B. Kunz Student Member David G. Long Senior Member |
author_sort |
Lukas B. Kunz |
title |
Calibrating SeaWinds and QuikSCAT scatterometers using natural land targets |
title_short |
Calibrating SeaWinds and QuikSCAT scatterometers using natural land targets |
title_full |
Calibrating SeaWinds and QuikSCAT scatterometers using natural land targets |
title_fullStr |
Calibrating SeaWinds and QuikSCAT scatterometers using natural land targets |
title_full_unstemmed |
Calibrating SeaWinds and QuikSCAT scatterometers using natural land targets |
title_sort |
calibrating seawinds and quikscat scatterometers using natural land targets |
publishDate |
2005 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.391.7269 http://www.mers.byu.edu/long/papers/GRSL2005AprKunz.pdf |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
http://www.mers.byu.edu/long/papers/GRSL2005AprKunz.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.391.7269 http://www.mers.byu.edu/long/papers/GRSL2005AprKunz.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766194709072445440 |