Utilizing GPS to Determine Ionospheric Delay over the Ocean
Several spaceborne altimeters have been built and flown, and others are being developed, to provide measurements of ocean and ice sheet topography. Until the launch of TOPEX, altimeters were single frequency systems incapable of removing the effects of ionospheric delay on the radar pulse. With the...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.408.5797 2023-05-15T16:40:56+02:00 Utilizing GPS to Determine Ionospheric Delay over the Ocean Stephen J. Katzberg James L. Garrison The Pennsylvania State University CiteSeerX Archives 1996 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.408.5797 http://www.cs.odu.edu/~mln/ltrs-pdfs/NASA-96-tm4750.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.408.5797 http://www.cs.odu.edu/~mln/ltrs-pdfs/NASA-96-tm4750.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.cs.odu.edu/~mln/ltrs-pdfs/NASA-96-tm4750.pdf text 1996 ftciteseerx 2016-01-08T03:10:21Z Several spaceborne altimeters have been built and flown, and others are being developed, to provide measurements of ocean and ice sheet topography. Until the launch of TOPEX, altimeters were single frequency systems incapable of removing the effects of ionospheric delay on the radar pulse. With the current state of the art in satellite altimetry, the ionosphere causes the largest single error when using single frequency altimeters. Ionospheric models provide the only recourse short of adding a second frequency to the altimeter. Unfortunately, measurements of the ionosphere are lacking over the oceans or ice sheets where they are most needed. A possible solution to the lack of data density may result from an expanded use of the Global Positioning System (GPS). This paper discusses how the reflection of the GPS signal from the ocean can be used to extend ionospheric measurements by simply adding a GPS receiver and downward-pointing antenna to satellites carrying single frequency altimeters. This paper presents results of a study assessing the feasibility and effectiveness of adding a GPS receiver and downward-pointing antenna to satellites carrying single frequency altimeters. Text Ice Sheet Unknown |
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ftciteseerx |
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English |
description |
Several spaceborne altimeters have been built and flown, and others are being developed, to provide measurements of ocean and ice sheet topography. Until the launch of TOPEX, altimeters were single frequency systems incapable of removing the effects of ionospheric delay on the radar pulse. With the current state of the art in satellite altimetry, the ionosphere causes the largest single error when using single frequency altimeters. Ionospheric models provide the only recourse short of adding a second frequency to the altimeter. Unfortunately, measurements of the ionosphere are lacking over the oceans or ice sheets where they are most needed. A possible solution to the lack of data density may result from an expanded use of the Global Positioning System (GPS). This paper discusses how the reflection of the GPS signal from the ocean can be used to extend ionospheric measurements by simply adding a GPS receiver and downward-pointing antenna to satellites carrying single frequency altimeters. This paper presents results of a study assessing the feasibility and effectiveness of adding a GPS receiver and downward-pointing antenna to satellites carrying single frequency altimeters. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Stephen J. Katzberg James L. Garrison |
spellingShingle |
Stephen J. Katzberg James L. Garrison Utilizing GPS to Determine Ionospheric Delay over the Ocean |
author_facet |
Stephen J. Katzberg James L. Garrison |
author_sort |
Stephen J. Katzberg |
title |
Utilizing GPS to Determine Ionospheric Delay over the Ocean |
title_short |
Utilizing GPS to Determine Ionospheric Delay over the Ocean |
title_full |
Utilizing GPS to Determine Ionospheric Delay over the Ocean |
title_fullStr |
Utilizing GPS to Determine Ionospheric Delay over the Ocean |
title_full_unstemmed |
Utilizing GPS to Determine Ionospheric Delay over the Ocean |
title_sort |
utilizing gps to determine ionospheric delay over the ocean |
publishDate |
1996 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.408.5797 http://www.cs.odu.edu/~mln/ltrs-pdfs/NASA-96-tm4750.pdf |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_source |
http://www.cs.odu.edu/~mln/ltrs-pdfs/NASA-96-tm4750.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.408.5797 http://www.cs.odu.edu/~mln/ltrs-pdfs/NASA-96-tm4750.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766031373890486272 |