Passive microwave (SSM/I) satellite predictions of valley glacier hydrology, Matanuska Glacier, Alaska
We advance an approach to use satellite passive microwave observations to track valley glacier snowmelt and predict timing of spring snowmelt‐induced floods at the terminus. Using 37 V GHz brightness temperatures (Tb) from the Special Sensor Microwave Imager (SSM/I), we monitor snowmelt onset when b...
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| Veröffentlicht in: | Geophysical research letters 2008-08, Vol.35 (16), p.n/a |
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| creator | Kopczynski, S. Ramage, J. Lawson, D. Goetz, S. Evenson, E. Denner, J. Larson, G. |
| description | We advance an approach to use satellite passive microwave observations to track valley glacier snowmelt and predict timing of spring snowmelt‐induced floods at the terminus. Using 37 V GHz brightness temperatures (Tb) from the Special Sensor Microwave Imager (SSM/I), we monitor snowmelt onset when both Tb and the difference between the ascending and descending overpasses exceed fixed thresholds established for Matanuska Glacier. Melt is confirmed by ground‐measured air temperature and snow‐wetness, while glacier hydrologic responses are monitored by a stream gauge, suspended‐sediment sensors and terminus ice velocity measurements. Accumulation area snowmelt timing is correlated (R2 = 0.61) to timing of the annual snowmelt flood peak and can be predicted within ±5 days. |
| doi_str_mv | 10.1029/2008GL034615 |
| format | Article |
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Using 37 V GHz brightness temperatures (Tb) from the Special Sensor Microwave Imager (SSM/I), we monitor snowmelt onset when both Tb and the difference between the ascending and descending overpasses exceed fixed thresholds established for Matanuska Glacier. Melt is confirmed by ground‐measured air temperature and snow‐wetness, while glacier hydrologic responses are monitored by a stream gauge, suspended‐sediment sensors and terminus ice velocity measurements. 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Res. Lett</addtitle><description>We advance an approach to use satellite passive microwave observations to track valley glacier snowmelt and predict timing of spring snowmelt‐induced floods at the terminus. Using 37 V GHz brightness temperatures (Tb) from the Special Sensor Microwave Imager (SSM/I), we monitor snowmelt onset when both Tb and the difference between the ascending and descending overpasses exceed fixed thresholds established for Matanuska Glacier. Melt is confirmed by ground‐measured air temperature and snow‐wetness, while glacier hydrologic responses are monitored by a stream gauge, suspended‐sediment sensors and terminus ice velocity measurements. Accumulation area snowmelt timing is correlated (R2 = 0.61) to timing of the annual snowmelt flood peak and can be predicted within ±5 days.</description><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Exact sciences and technology</subject><subject>glaciers</subject><subject>remote sensing</subject><subject>snowmelt</subject><issn>0094-8276</issn><issn>1944-8007</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNp9kEtP3DAUhS3USkxpd_wAb0CtNCnXj9jJEk1LQB3oA6pKbKw7iQ0unsnUzkDn39c0CHXV1b1X_s6xziFkn8F7Brw-4gBVMwchFSt3yITVUhYVgH5BJgB13rlWu-RVSj8BQIBgE-K-YEr-3tKlb2P_gHl7e3l5fnT2jiYcbAh-sHQdbefbwferRHtH7zEEu6U3AVtvI73ddrEP_c12Ss9xwNUm3SFtxscpPQ6Y79fkpcOQ7JunuUe-n3y8mp0W88_N2ex4XqAEKAulWKcd5w4tSFdWSomOo63Khe6gA-EEE2KBSotF5XQlkdes1SB57TKkmdgjh6PvOva_NjYNZulTm2PgyvabZHjuSUkGGZyOYE6dUrTOrKNfYtwaBuaxTPNvmRk_ePLF1GJwEVetT88aDlpq_fd_PnIPPlf0X0_TfJtzWfFH82IU-TTY388ijHcmJ9Wl-XHRmJn6cP31Qs7MJ_EHMYWQpw</recordid><startdate>200808</startdate><enddate>200808</enddate><creator>Kopczynski, S.</creator><creator>Ramage, J.</creator><creator>Lawson, D.</creator><creator>Goetz, S.</creator><creator>Evenson, E.</creator><creator>Denner, J.</creator><creator>Larson, G.</creator><general>Blackwell Publishing Ltd</general><general>American Geophysical Union</general><scope>BSCLL</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>KL.</scope><scope>L.G</scope></search><sort><creationdate>200808</creationdate><title>Passive microwave (SSM/I) satellite predictions of valley glacier hydrology, Matanuska Glacier, Alaska</title><author>Kopczynski, S. ; Ramage, J. ; Lawson, D. ; Goetz, S. ; Evenson, E. ; Denner, J. ; Larson, G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a4005-661d7f22fae04f58663d2ae85b7d0d03f3133ba673b8f784a291c70429fe85713</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2008</creationdate><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Exact sciences and technology</topic><topic>glaciers</topic><topic>remote sensing</topic><topic>snowmelt</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kopczynski, S.</creatorcontrib><creatorcontrib>Ramage, J.</creatorcontrib><creatorcontrib>Lawson, D.</creatorcontrib><creatorcontrib>Goetz, S.</creatorcontrib><creatorcontrib>Evenson, E.</creatorcontrib><creatorcontrib>Denner, J.</creatorcontrib><creatorcontrib>Larson, G.</creatorcontrib><collection>Istex</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><jtitle>Geophysical research letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kopczynski, S.</au><au>Ramage, J.</au><au>Lawson, D.</au><au>Goetz, S.</au><au>Evenson, E.</au><au>Denner, J.</au><au>Larson, G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Passive microwave (SSM/I) satellite predictions of valley glacier hydrology, Matanuska Glacier, Alaska</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2008-08</date><risdate>2008</risdate><volume>35</volume><issue>16</issue><epage>n/a</epage><issn>0094-8276</issn><eissn>1944-8007</eissn><coden>GPRLAJ</coden><abstract>We advance an approach to use satellite passive microwave observations to track valley glacier snowmelt and predict timing of spring snowmelt‐induced floods at the terminus. Using 37 V GHz brightness temperatures (Tb) from the Special Sensor Microwave Imager (SSM/I), we monitor snowmelt onset when both Tb and the difference between the ascending and descending overpasses exceed fixed thresholds established for Matanuska Glacier. Melt is confirmed by ground‐measured air temperature and snow‐wetness, while glacier hydrologic responses are monitored by a stream gauge, suspended‐sediment sensors and terminus ice velocity measurements. Accumulation area snowmelt timing is correlated (R2 = 0.61) to timing of the annual snowmelt flood peak and can be predicted within ±5 days.</abstract><cop>Washington, DC</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1029/2008GL034615</doi><tpages>5</tpages></addata></record> |
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| source | Wiley Online Library Journals Frontfile Complete; Wiley Free Content; Wiley-Blackwell AGU Digital Library; EZB-FREE-00999 freely available EZB journals |
| subjects | Earth sciences Earth, ocean, space Exact sciences and technology glaciers remote sensing snowmelt |
| title | Passive microwave (SSM/I) satellite predictions of valley glacier hydrology, Matanuska Glacier, Alaska |
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