Ku-band SAR data for bare soil moisture retrieval over agricultural fields
This study focused on the analyses of multiangle, Ku-band (14.85 GHz), synthetic aperture radar (SAR) data for bare soil moisture retrieval over agricultural fields. The radar data were acquired at three incidence angles (35/spl deg/, 55/spl deg/, and 75/spl deg/), VV polarization, and 2-m nominal s...
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| creator | Sano, E.E. Moran, M.S. Huete, A.R. Miura, T. |
| description | This study focused on the analyses of multiangle, Ku-band (14.85 GHz), synthetic aperture radar (SAR) data for bare soil moisture retrieval over agricultural fields. The radar data were acquired at three incidence angles (35/spl deg/, 55/spl deg/, and 75/spl deg/), VV polarization, and 2-m nominal spatial resolution. The fields presented either a small-scale or an intermediate-scale periodic soil roughness components, associated with level-basin and furrow irrigation systems, respectively. Both of these periodic structures were randomly perturbed by the presence of soil clods. Radar backscatter and soil surface moisture data were obtained from 39 "borders" (within-field level basins). The results showed that the bare soil moisture retrieval over agricultural fields with periodic roughness components from Ku-band SAR data is dependent upon the incidence angle and the soil roughness condition. For fields with level-basin irrigation system, a good linear relationship between radar backscattering coefficients and volumetric soil moisture contents was found, especially at 35/spl deg/ incidence angle (r/sup 2/=0.90; for 55/spl deg/ and 75/spl deg/ incidence angles, r/sup 2/=0.74 and 0.41, respectively). However, for fields with the furrow irrigation system, the radar backscattering data were nearly insensitive to soil moisture due to the stronger influence of soil roughness. |
| doi_str_mv | 10.1109/IGARSS.1997.615809 |
| format | Conference Proceeding |
| fullrecord | <record><control><sourceid>ieee_6IE</sourceid><recordid>TN_cdi_ieee_primary_615809</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><ieee_id>615809</ieee_id><sourcerecordid>615809</sourcerecordid><originalsourceid>FETCH-ieee_primary_6158093</originalsourceid><addsrcrecordid>eNp9jssKwjAURAMiKNof6Or-QGtC-sqyiO9d676k9lYiqZWkLfj3BnTtMDDMnM0Q4jMaMkbF5nTIi7IMmRBpmLA4o2JGPJFm1JnzjCfRgnjWPqhTFEciFktyvoxBLZ8NlHkBjRwktL2BWhoE2ysNXa_sMLpmcDAKJ6mhn9CAvBt1G7VDbmkV6sauybyV2qL3yxXx97vr9hgoRKxeRnXSvKvvMf4XfgB2_j0F</addsrcrecordid><sourcetype>Publisher</sourcetype><iscdi>true</iscdi><recordtype>conference_proceeding</recordtype></control><display><type>conference_proceeding</type><title>Ku-band SAR data for bare soil moisture retrieval over agricultural fields</title><source>IEEE Electronic Library (IEL) Conference Proceedings</source><creator>Sano, E.E. ; Moran, M.S. ; Huete, A.R. ; Miura, T.</creator><creatorcontrib>Sano, E.E. ; Moran, M.S. ; Huete, A.R. ; Miura, T.</creatorcontrib><description>This study focused on the analyses of multiangle, Ku-band (14.85 GHz), synthetic aperture radar (SAR) data for bare soil moisture retrieval over agricultural fields. The radar data were acquired at three incidence angles (35/spl deg/, 55/spl deg/, and 75/spl deg/), VV polarization, and 2-m nominal spatial resolution. The fields presented either a small-scale or an intermediate-scale periodic soil roughness components, associated with level-basin and furrow irrigation systems, respectively. Both of these periodic structures were randomly perturbed by the presence of soil clods. Radar backscatter and soil surface moisture data were obtained from 39 "borders" (within-field level basins). The results showed that the bare soil moisture retrieval over agricultural fields with periodic roughness components from Ku-band SAR data is dependent upon the incidence angle and the soil roughness condition. For fields with level-basin irrigation system, a good linear relationship between radar backscattering coefficients and volumetric soil moisture contents was found, especially at 35/spl deg/ incidence angle (r/sup 2/=0.90; for 55/spl deg/ and 75/spl deg/ incidence angles, r/sup 2/=0.74 and 0.41, respectively). However, for fields with the furrow irrigation system, the radar backscattering data were nearly insensitive to soil moisture due to the stronger influence of soil roughness.</description><identifier>ISBN: 9780780338364</identifier><identifier>ISBN: 0780338367</identifier><identifier>DOI: 10.1109/IGARSS.1997.615809</identifier><language>eng</language><publisher>IEEE</publisher><subject>Backscatter ; Information retrieval ; Irrigation ; Periodic structures ; Polarization ; Rough surfaces ; Soil moisture ; Spatial resolution ; Surface roughness ; Synthetic aperture radar</subject><ispartof>IGARSS'97. 1997 IEEE International Geoscience and Remote Sensing Symposium Proceedings. Remote Sensing - A Scientific Vision for Sustainable Development, 1997, Vol.1, p.98-100 vol.1</ispartof><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/615809$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>309,310,778,782,787,788,2054,4038,4039,27908,54903</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/615809$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Sano, E.E.</creatorcontrib><creatorcontrib>Moran, M.S.</creatorcontrib><creatorcontrib>Huete, A.R.</creatorcontrib><creatorcontrib>Miura, T.</creatorcontrib><title>Ku-band SAR data for bare soil moisture retrieval over agricultural fields</title><title>IGARSS'97. 1997 IEEE International Geoscience and Remote Sensing Symposium Proceedings. Remote Sensing - A Scientific Vision for Sustainable Development</title><addtitle>IGARSS</addtitle><description>This study focused on the analyses of multiangle, Ku-band (14.85 GHz), synthetic aperture radar (SAR) data for bare soil moisture retrieval over agricultural fields. The radar data were acquired at three incidence angles (35/spl deg/, 55/spl deg/, and 75/spl deg/), VV polarization, and 2-m nominal spatial resolution. The fields presented either a small-scale or an intermediate-scale periodic soil roughness components, associated with level-basin and furrow irrigation systems, respectively. Both of these periodic structures were randomly perturbed by the presence of soil clods. Radar backscatter and soil surface moisture data were obtained from 39 "borders" (within-field level basins). The results showed that the bare soil moisture retrieval over agricultural fields with periodic roughness components from Ku-band SAR data is dependent upon the incidence angle and the soil roughness condition. For fields with level-basin irrigation system, a good linear relationship between radar backscattering coefficients and volumetric soil moisture contents was found, especially at 35/spl deg/ incidence angle (r/sup 2/=0.90; for 55/spl deg/ and 75/spl deg/ incidence angles, r/sup 2/=0.74 and 0.41, respectively). However, for fields with the furrow irrigation system, the radar backscattering data were nearly insensitive to soil moisture due to the stronger influence of soil roughness.</description><subject>Backscatter</subject><subject>Information retrieval</subject><subject>Irrigation</subject><subject>Periodic structures</subject><subject>Polarization</subject><subject>Rough surfaces</subject><subject>Soil moisture</subject><subject>Spatial resolution</subject><subject>Surface roughness</subject><subject>Synthetic aperture radar</subject><isbn>9780780338364</isbn><isbn>0780338367</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>1997</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNp9jssKwjAURAMiKNof6Or-QGtC-sqyiO9d676k9lYiqZWkLfj3BnTtMDDMnM0Q4jMaMkbF5nTIi7IMmRBpmLA4o2JGPJFm1JnzjCfRgnjWPqhTFEciFktyvoxBLZ8NlHkBjRwktL2BWhoE2ysNXa_sMLpmcDAKJ6mhn9CAvBt1G7VDbmkV6sauybyV2qL3yxXx97vr9hgoRKxeRnXSvKvvMf4XfgB2_j0F</recordid><startdate>1997</startdate><enddate>1997</enddate><creator>Sano, E.E.</creator><creator>Moran, M.S.</creator><creator>Huete, A.R.</creator><creator>Miura, T.</creator><general>IEEE</general><scope>6IE</scope><scope>6IL</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIL</scope></search><sort><creationdate>1997</creationdate><title>Ku-band SAR data for bare soil moisture retrieval over agricultural fields</title><author>Sano, E.E. ; Moran, M.S. ; Huete, A.R. ; Miura, T.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-ieee_primary_6158093</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>1997</creationdate><topic>Backscatter</topic><topic>Information retrieval</topic><topic>Irrigation</topic><topic>Periodic structures</topic><topic>Polarization</topic><topic>Rough surfaces</topic><topic>Soil moisture</topic><topic>Spatial resolution</topic><topic>Surface roughness</topic><topic>Synthetic aperture radar</topic><toplevel>online_resources</toplevel><creatorcontrib>Sano, E.E.</creatorcontrib><creatorcontrib>Moran, M.S.</creatorcontrib><creatorcontrib>Huete, A.R.</creatorcontrib><creatorcontrib>Miura, T.</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan All Online (POP All Online) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP All) 1998-Present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Sano, E.E.</au><au>Moran, M.S.</au><au>Huete, A.R.</au><au>Miura, T.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Ku-band SAR data for bare soil moisture retrieval over agricultural fields</atitle><btitle>IGARSS'97. 1997 IEEE International Geoscience and Remote Sensing Symposium Proceedings. Remote Sensing - A Scientific Vision for Sustainable Development</btitle><stitle>IGARSS</stitle><date>1997</date><risdate>1997</risdate><volume>1</volume><spage>98</spage><epage>100 vol.1</epage><pages>98-100 vol.1</pages><isbn>9780780338364</isbn><isbn>0780338367</isbn><abstract>This study focused on the analyses of multiangle, Ku-band (14.85 GHz), synthetic aperture radar (SAR) data for bare soil moisture retrieval over agricultural fields. The radar data were acquired at three incidence angles (35/spl deg/, 55/spl deg/, and 75/spl deg/), VV polarization, and 2-m nominal spatial resolution. The fields presented either a small-scale or an intermediate-scale periodic soil roughness components, associated with level-basin and furrow irrigation systems, respectively. Both of these periodic structures were randomly perturbed by the presence of soil clods. Radar backscatter and soil surface moisture data were obtained from 39 "borders" (within-field level basins). The results showed that the bare soil moisture retrieval over agricultural fields with periodic roughness components from Ku-band SAR data is dependent upon the incidence angle and the soil roughness condition. For fields with level-basin irrigation system, a good linear relationship between radar backscattering coefficients and volumetric soil moisture contents was found, especially at 35/spl deg/ incidence angle (r/sup 2/=0.90; for 55/spl deg/ and 75/spl deg/ incidence angles, r/sup 2/=0.74 and 0.41, respectively). However, for fields with the furrow irrigation system, the radar backscattering data were nearly insensitive to soil moisture due to the stronger influence of soil roughness.</abstract><pub>IEEE</pub><doi>10.1109/IGARSS.1997.615809</doi></addata></record> |
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| identifier | ISBN: 9780780338364 |
| ispartof | IGARSS'97. 1997 IEEE International Geoscience and Remote Sensing Symposium Proceedings. Remote Sensing - A Scientific Vision for Sustainable Development, 1997, Vol.1, p.98-100 vol.1 |
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| language | eng |
| recordid | cdi_ieee_primary_615809 |
| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Backscatter Information retrieval Irrigation Periodic structures Polarization Rough surfaces Soil moisture Spatial resolution Surface roughness Synthetic aperture radar |
| title | Ku-band SAR data for bare soil moisture retrieval over agricultural fields |
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