Global Analysis of EnviSat Burst Echoes Over Inland Water
Satellite radar altimeters have an established and increasingly vital role in monitoring the Earth's surface inland water resources. This paper analyzes two years of EnviSat burst echoes (which have 3.9-m nominal along-track separation) over rivers, lakes, and ephemeral water globally to assess...
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| Veröffentlicht in: | IEEE transactions on geoscience and remote sensing 2012-05, Vol.50 (5), p.1980-1985 |
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| container_title | IEEE transactions on geoscience and remote sensing |
| container_volume | 50 |
| creator | Berry, P. A. M. Smith, R. G. Salloway, M. K. Benveniste, J. |
| description | Satellite radar altimeters have an established and increasingly vital role in monitoring the Earth's surface inland water resources. This paper analyzes two years of EnviSat burst echoes (which have 3.9-m nominal along-track separation) over rivers, lakes, and ephemeral water globally to assess the increase in monitoring potential afforded by the higher pulse repetition frequency (PRF) of the next generation of synthetic aperture radar altimeters and investigate spatial burst correlation. Burst echoes at 1800 Hz are successfully retracked with no waveform averaging. The conclusion is that the higher PRF allows detection and measurement of water bodies on a far finer spatial scale because water is a very bright reflector at Ku-band and land in general is relatively poor, with pools of water a few tens of meters across being successfully identified. |
| doi_str_mv | 10.1109/TGRS.2011.2170695 |
| format | Article |
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The conclusion is that the higher PRF allows detection and measurement of water bodies on a far finer spatial scale because water is a very bright reflector at Ku-band and land in general is relatively poor, with pools of water a few tens of meters across being successfully identified.</description><subject>Altimetry</subject><subject>Applied geophysics</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>Internal geophysics</subject><subject>Lakes</subject><subject>Monitoring</subject><subject>Radar</subject><subject>remote sensing</subject><subject>Rivers</subject><subject>Shape</subject><subject>Surface topography</subject><subject>Time series analysis</subject><issn>0196-2892</issn><issn>1558-0644</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9j8FLwzAUh4MoOKd_gHjJxWPne0mTNsc56hwMBm7isbymCVZqO5I62H_vxsZO7_C-7wcfY48IE0QwL5v5x3oiAHEiMANt1BUboVJ5AjpNr9kI0OhE5EbcsrsYfwAwVZiNmJm3fUUtn3bU7mMTee950e2aNQ389S_EgRf2u3eRr3Yu8EXXUlfzLxpcuGc3ntroHs53zD7fis3sPVmu5ovZdJlYYdSQOOlzWeca6gwqElKK3INSJkNlLahK1D4DEA61UyhAapEeIE2kZEpOkhwzPO3a0McYnC-3ofmlsC8RymN7eWwvj-3luf3gPJ-cLUVLrQ_U2SZeRKFyLVDCgXs6cY1z7vLWkCHIVP4Dg-tf-A</recordid><startdate>20120501</startdate><enddate>20120501</enddate><creator>Berry, P. 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K.</creatorcontrib><creatorcontrib>Benveniste, J.</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>IEEE transactions on geoscience and remote sensing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Berry, P. A. M.</au><au>Smith, R. G.</au><au>Salloway, M. K.</au><au>Benveniste, J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Global Analysis of EnviSat Burst Echoes Over Inland Water</atitle><jtitle>IEEE transactions on geoscience and remote sensing</jtitle><stitle>TGRS</stitle><date>2012-05-01</date><risdate>2012</risdate><volume>50</volume><issue>5</issue><spage>1980</spage><epage>1985</epage><pages>1980-1985</pages><issn>0196-2892</issn><eissn>1558-0644</eissn><coden>IGRSD2</coden><abstract>Satellite radar altimeters have an established and increasingly vital role in monitoring the Earth's surface inland water resources. This paper analyzes two years of EnviSat burst echoes (which have 3.9-m nominal along-track separation) over rivers, lakes, and ephemeral water globally to assess the increase in monitoring potential afforded by the higher pulse repetition frequency (PRF) of the next generation of synthetic aperture radar altimeters and investigate spatial burst correlation. Burst echoes at 1800 Hz are successfully retracked with no waveform averaging. The conclusion is that the higher PRF allows detection and measurement of water bodies on a far finer spatial scale because water is a very bright reflector at Ku-band and land in general is relatively poor, with pools of water a few tens of meters across being successfully identified.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/TGRS.2011.2170695</doi><tpages>6</tpages></addata></record> |
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| identifier | ISSN: 0196-2892 |
| ispartof | IEEE transactions on geoscience and remote sensing, 2012-05, Vol.50 (5), p.1980-1985 |
| issn | 0196-2892 1558-0644 |
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| source | IEEE Electronic Library (IEL) |
| subjects | Altimetry Applied geophysics Earth sciences Earth, ocean, space Exact sciences and technology Internal geophysics Lakes Monitoring Radar remote sensing Rivers Shape Surface topography Time series analysis |
| title | Global Analysis of EnviSat Burst Echoes Over Inland Water |
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