Geodetic corrections to Amazon River water level gauges using ICESat altimetry
Gauge stations are vital for monitoring water levels worldwide. However, many remote basins suffer from having gauges that are not tied to a common datum, making it impossible to know absolute water elevations, and therefore slope. This problem is known to exist on the River Amazon, for example, whe...
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| Veröffentlicht in: | Water resources research 2012-06, Vol.48 (6), p.n/a |
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| creator | Hall, Amanda C. Schumann, Guy J.-P. Bamber, Jonathan L. Bates, Paul D. Trigg, Mark A. |
| description | Gauge stations are vital for monitoring water levels worldwide. However, many remote basins suffer from having gauges that are not tied to a common datum, making it impossible to know absolute water elevations, and therefore slope. This problem is known to exist on the River Amazon, for example, where water flux modeling efforts have been hampered by inconsistently leveled gauge data that serve as boundary conditions for these models. This paper presents a methodology for using Ice, Cloud, and land Elevation Satellite (ICESat) laser altimetry observations to geodetically level gauge stations. A proof‐of‐concept study was carried out to ascertain the feasibility and accuracy of the approach, and a mean absolute error of 19 cm was found. Once this was established, gauges within the Amazon Basin were geodetically leveled. This produced offsets for six gauges using a method that can be transferred to other locations and allows slope and discharge estimates to be calculated. The results are significant, with offsets as large as 13.37 m being added. The approach could provide improvements in modeling floodplain flow, processes, and fluxes in the Amazon Basin and worldwide.
Key Points
ICESat GLAS can observe terrestrial water levels to decimetric accuracy
Geodetically leveled gauges are essential for accurate slope estimates
The methodology developed to level river gauges can be transfered elsewhere |
| doi_str_mv | 10.1029/2011WR010895 |
| format | Article |
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Key Points
ICESat GLAS can observe terrestrial water levels to decimetric accuracy
Geodetically leveled gauges are essential for accurate slope estimates
The methodology developed to level river gauges can be transfered elsewhere</description><identifier>ISSN: 0043-1397</identifier><identifier>EISSN: 1944-7973</identifier><identifier>DOI: 10.1029/2011WR010895</identifier><language>eng</language><publisher>Washington: Blackwell Publishing Ltd</publisher><subject>Altimetry ; Amazon Basin ; Boundary conditions ; discharge ; Floodplains ; gauge networks ; Gauges ; hydrology ; laser altimetry ; Rivers ; Water levels ; Water monitoring</subject><ispartof>Water resources research, 2012-06, Vol.48 (6), p.n/a</ispartof><rights>2012. American Geophysical Union. All Rights Reserved.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a4062-ce07ada00f59230b273de064d4b378f18c13a54542dc946815aa3875cc26bb153</citedby><cites>FETCH-LOGICAL-a4062-ce07ada00f59230b273de064d4b378f18c13a54542dc946815aa3875cc26bb153</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1029%2F2011WR010895$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1029%2F2011WR010895$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,776,780,1411,11493,27901,27902,45550,45551,46443,46867</link.rule.ids></links><search><creatorcontrib>Hall, Amanda C.</creatorcontrib><creatorcontrib>Schumann, Guy J.-P.</creatorcontrib><creatorcontrib>Bamber, Jonathan L.</creatorcontrib><creatorcontrib>Bates, Paul D.</creatorcontrib><creatorcontrib>Trigg, Mark A.</creatorcontrib><title>Geodetic corrections to Amazon River water level gauges using ICESat altimetry</title><title>Water resources research</title><addtitle>Water Resour. Res</addtitle><description>Gauge stations are vital for monitoring water levels worldwide. However, many remote basins suffer from having gauges that are not tied to a common datum, making it impossible to know absolute water elevations, and therefore slope. This problem is known to exist on the River Amazon, for example, where water flux modeling efforts have been hampered by inconsistently leveled gauge data that serve as boundary conditions for these models. This paper presents a methodology for using Ice, Cloud, and land Elevation Satellite (ICESat) laser altimetry observations to geodetically level gauge stations. A proof‐of‐concept study was carried out to ascertain the feasibility and accuracy of the approach, and a mean absolute error of 19 cm was found. Once this was established, gauges within the Amazon Basin were geodetically leveled. This produced offsets for six gauges using a method that can be transferred to other locations and allows slope and discharge estimates to be calculated. The results are significant, with offsets as large as 13.37 m being added. The approach could provide improvements in modeling floodplain flow, processes, and fluxes in the Amazon Basin and worldwide.
Key Points
ICESat GLAS can observe terrestrial water levels to decimetric accuracy
Geodetically leveled gauges are essential for accurate slope estimates
The methodology developed to level river gauges can be transfered elsewhere</description><subject>Altimetry</subject><subject>Amazon Basin</subject><subject>Boundary conditions</subject><subject>discharge</subject><subject>Floodplains</subject><subject>gauge networks</subject><subject>Gauges</subject><subject>hydrology</subject><subject>laser altimetry</subject><subject>Rivers</subject><subject>Water levels</subject><subject>Water monitoring</subject><issn>0043-1397</issn><issn>1944-7973</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNp90E1PAjEQBuDGaCKiN39AE6-udvqx3R4REVGiCWo4NqVbyOLCYtsF8de7BGM8eZm5PO9M8iJ0DuQKCFXXlACMRwRIpsQBaoHiPJFKskPUIoSzBJiSx-gkhDkhwEUqW-ip76rcxcJiW3nvbCyqZcCxwp2F-aqWeFSsnccbE5tZurUr8czUMxdwHYrlDA-6vRcTsSljsXDRb0_R0dSUwZ397DZ6u-u9du-T4XN_0O0ME8NJShPriDS5IWQqFGVkQiXLHUl5zidMZlPILDAjuOA0t4qnGQhjWCaFtTSdTECwNrrY31356qN2Iep5Vftl81KDpMABlKSNutwr66sQvJvqlS8Wxm81EL1rTP9trOFszzdF6bb_Wj0edUfAKN09SfapIkT3-Zsy_l2nksmGPvU1U3CjxO2DfmTfilh6Zw</recordid><startdate>201206</startdate><enddate>201206</enddate><creator>Hall, Amanda C.</creator><creator>Schumann, Guy J.-P.</creator><creator>Bamber, Jonathan L.</creator><creator>Bates, Paul D.</creator><creator>Trigg, Mark A.</creator><general>Blackwell Publishing Ltd</general><general>John Wiley & Sons, Inc</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7QL</scope><scope>7T7</scope><scope>7TG</scope><scope>7U9</scope><scope>7UA</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H94</scope><scope>H96</scope><scope>KL.</scope><scope>KR7</scope><scope>L.G</scope><scope>M7N</scope><scope>P64</scope></search><sort><creationdate>201206</creationdate><title>Geodetic corrections to Amazon River water level gauges using ICESat altimetry</title><author>Hall, Amanda C. ; Schumann, Guy J.-P. ; Bamber, Jonathan L. ; Bates, Paul D. ; Trigg, Mark A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a4062-ce07ada00f59230b273de064d4b378f18c13a54542dc946815aa3875cc26bb153</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Altimetry</topic><topic>Amazon Basin</topic><topic>Boundary conditions</topic><topic>discharge</topic><topic>Floodplains</topic><topic>gauge networks</topic><topic>Gauges</topic><topic>hydrology</topic><topic>laser altimetry</topic><topic>Rivers</topic><topic>Water levels</topic><topic>Water monitoring</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hall, Amanda C.</creatorcontrib><creatorcontrib>Schumann, Guy J.-P.</creatorcontrib><creatorcontrib>Bamber, Jonathan L.</creatorcontrib><creatorcontrib>Bates, Paul D.</creatorcontrib><creatorcontrib>Trigg, Mark A.</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Virology and AIDS Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Civil Engineering Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Water resources research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hall, Amanda C.</au><au>Schumann, Guy J.-P.</au><au>Bamber, Jonathan L.</au><au>Bates, Paul D.</au><au>Trigg, Mark A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Geodetic corrections to Amazon River water level gauges using ICESat altimetry</atitle><jtitle>Water resources research</jtitle><addtitle>Water Resour. Res</addtitle><date>2012-06</date><risdate>2012</risdate><volume>48</volume><issue>6</issue><epage>n/a</epage><issn>0043-1397</issn><eissn>1944-7973</eissn><abstract>Gauge stations are vital for monitoring water levels worldwide. However, many remote basins suffer from having gauges that are not tied to a common datum, making it impossible to know absolute water elevations, and therefore slope. This problem is known to exist on the River Amazon, for example, where water flux modeling efforts have been hampered by inconsistently leveled gauge data that serve as boundary conditions for these models. This paper presents a methodology for using Ice, Cloud, and land Elevation Satellite (ICESat) laser altimetry observations to geodetically level gauge stations. A proof‐of‐concept study was carried out to ascertain the feasibility and accuracy of the approach, and a mean absolute error of 19 cm was found. Once this was established, gauges within the Amazon Basin were geodetically leveled. This produced offsets for six gauges using a method that can be transferred to other locations and allows slope and discharge estimates to be calculated. The results are significant, with offsets as large as 13.37 m being added. The approach could provide improvements in modeling floodplain flow, processes, and fluxes in the Amazon Basin and worldwide.
Key Points
ICESat GLAS can observe terrestrial water levels to decimetric accuracy
Geodetically leveled gauges are essential for accurate slope estimates
The methodology developed to level river gauges can be transfered elsewhere</abstract><cop>Washington</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1029/2011WR010895</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Water resources research, 2012-06, Vol.48 (6), p.n/a |
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| language | eng |
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| source | Wiley-Blackwell AGU Digital Library; Wiley Online Library Journals Frontfile Complete; EZB-FREE-00999 freely available EZB journals |
| subjects | Altimetry Amazon Basin Boundary conditions discharge Floodplains gauge networks Gauges hydrology laser altimetry Rivers Water levels Water monitoring |
| title | Geodetic corrections to Amazon River water level gauges using ICESat altimetry |
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