| DOI: | 10.1002/2015GL063131
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| 论文题名: | Coastal sea level from inland CryoSat-2 interferometric SAR altimetry |
| 作者: | Abulaitijiang A.; Andersen O.B.; Stenseng L.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8886
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| EISSN: | 1944-8617
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| 出版年: | 2015
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| 卷: | 42, 期:6 | | 起始页码: | 1841
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| 结束页码: | 1847
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| 语种: | 英语
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| 英文关键词: | altimetry
; SAR interferometry
; sea level
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| Scopus关键词: | Interferometry
; Satellites
; Space-based radar
; Synthetic aperture radar
; Altimetry
; Coastal sea level
; European Space Agency
; Interferometric SAR
; Phase difference
; Phase wrapping
; SAR interferometry
; Track direction
; Sea level
; coastal water
; CryoSat
; fjord
; inland sea
; nadir
; satellite altimetry
; sea level
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| 英文摘要: | The European Space Agency's CryoSat-2 satellite can operate in a novel synthetic aperture radar interferometric (SARIn) mode where its nominal footprint (swath) is observed by two antennas and the phase difference between the signals is used to determination the exact location of the scatterer through an off-nadir correction. The potential of SARIn for sea level determination is investigated over the fjords of Eastern Greenland. In principle the satellite should only track sea level within its nominal footprint of 7km across track, but we observe that scattering targets (fjords) within twice its nominal footprint are frequently observed but mislocated in CryoSat-2 due to phase wrapping. We devised a way to relocate the observations and correct the range accordingly. When CryoSat-2 is flying inland we consequently observed that the satellite occasionally provide valid sea level in fjords up to 13km away in the across-track direction. Key Points Sea level retrieved from CryoSat-2 SARIn when satellite flies 13km inland Phase unwrapping reveals hidden data in SARIn CryoSat-2 SARIn observe sea level in regions not previously covered by altimetry ©2015. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84927797961&doi=10.1002%2f2015GL063131&partnerID=40&md5=9ae5448a90931091a7e2579c620aca03
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/8502
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| Appears in Collections: | 科学计划与规划
气候变化与战略
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作者单位: | DTU Space, Technical University of Denmark, Lyngby, Denmark
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| Recommended Citation: | |
Abulaitijiang A.,Andersen O.B.,Stenseng L.. Coastal sea level from inland CryoSat-2 interferometric SAR altimetry[J]. Geophysical Research Letters,2015-01-01,42(6).
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