A bi-directional gap model for simulating the directional thermal radiance of row crops
Row crops are a kind of typical vegetation canopy between discrete canopy and continuous canopy. Kimes et al. studied the directional thermal radiation of row crops using the geometrical optical model, which simplified row structure as "box" and neglected the gap among foliage and did not...
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| Veröffentlicht in: | Science China. Earth sciences 2002-12, Vol.45 (12), p.1087-1098 |
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| container_title | Science China. Earth sciences |
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| creator | Chen, Liangfu Liu, Qinhuo Fan, Wenjie Li, Xiaowen Xiao, Qing Yan, Guangjian Tian, Guoliang |
| description | Row crops are a kind of typical vegetation canopy between discrete canopy and continuous canopy. Kimes et al. studied the directional thermal radiation of row crops using the geometrical optical model, which simplified row structure as "box" and neglected the gap among foliage and did not consider the emissivity effects. In this work we take account of the gaps along illumination and viewing directions and propose a bi-direction gap model on the basis of the idea of gap probability of discrete vegetation canopy introduced by "Li-Strahler" and inter-correlation of continuous vegetation developed by Kuusk. It can be used to explain "hot spot" effects in thermal infrared region. The gap model has been validated by field experiment on winter wheat planted in shape of rows and results show that the gap model is better than Kimes' model in describing the directionality of thermal infrared emission for row crops. |
| doi_str_mv | 10.1360/02yd9106 |
| format | Article |
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Kimes et al. studied the directional thermal radiation of row crops using the geometrical optical model, which simplified row structure as "box" and neglected the gap among foliage and did not consider the emissivity effects. In this work we take account of the gaps along illumination and viewing directions and propose a bi-direction gap model on the basis of the idea of gap probability of discrete vegetation canopy introduced by "Li-Strahler" and inter-correlation of continuous vegetation developed by Kuusk. It can be used to explain "hot spot" effects in thermal infrared region. The gap model has been validated by field experiment on winter wheat planted in shape of rows and results show that the gap model is better than Kimes' model in describing the directionality of thermal infrared emission for row crops.</description><identifier>ISSN: 1674-7313</identifier><identifier>ISSN: 1006-9313</identifier><identifier>EISSN: 1869-1897</identifier><identifier>EISSN: 1862-2801</identifier><identifier>DOI: 10.1360/02yd9106</identifier><language>eng</language><publisher>Dordrecht: Springer Nature B.V</publisher><subject>Auroral kilometric radiation ; Canopies ; Canopy ; Crops ; directional ; effects ; Emissivity ; Foliage ; gap ; Hot spots ; hot-spot ; Infrared emissions ; Infrared radiation ; Modelling ; Plant cover ; Probability theory ; Radiance ; radiation ; row-structure ; thermal ; Thermal radiation ; Vegetation ; Wheat ; Winter wheat</subject><ispartof>Science China. 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The gap model has been validated by field experiment on winter wheat planted in shape of rows and results show that the gap model is better than Kimes' model in describing the directionality of thermal infrared emission for row crops.</description><subject>Auroral kilometric radiation</subject><subject>Canopies</subject><subject>Canopy</subject><subject>Crops</subject><subject>directional</subject><subject>effects</subject><subject>Emissivity</subject><subject>Foliage</subject><subject>gap</subject><subject>Hot spots</subject><subject>hot-spot</subject><subject>Infrared emissions</subject><subject>Infrared radiation</subject><subject>Modelling</subject><subject>Plant cover</subject><subject>Probability theory</subject><subject>Radiance</subject><subject>radiation</subject><subject>row-structure</subject><subject>thermal</subject><subject>Thermal radiation</subject><subject>Vegetation</subject><subject>Wheat</subject><subject>Winter wheat</subject><issn>1674-7313</issn><issn>1006-9313</issn><issn>1869-1897</issn><issn>1862-2801</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNpNkFtLAzEQhYMoWGrBnxDEB19Wc9km2cdSvEHBF8XHZTaXNnV3s022SP-9kVZwXs4M83E4MwhdU3JPuSAPhB1MRYk4QxOqRFVQVcnz3AtZFpJTfolmKW1JLp43TE7Q5wI3vjA-Wj360EOL1zDgLhjbYhciTr7btzD6fo3HjcX_wTzHLmsE46HXFgeHY_jGOoYhXaELB22ys5NO0cfT4_vypVi9Pb8uF6tCM0XHwgKTVHCqSgN8Ds7wsmS0kRVUruSsUYYLwyifV00jFIAuBQfJQGljmXbAp-jm6DvEsNvbNNbbsI85XqqlYHOlKKEZujtCOVpK0bp6iL6DeKgpqX8fV_89LqO3J3QT-vUu3103oL-cb22Gs5cQpJL8B7k1a88</recordid><startdate>20021201</startdate><enddate>20021201</enddate><creator>Chen, Liangfu</creator><creator>Liu, Qinhuo</creator><creator>Fan, Wenjie</creator><creator>Li, Xiaowen</creator><creator>Xiao, Qing</creator><creator>Yan, Guangjian</creator><creator>Tian, Guoliang</creator><general>Springer Nature B.V</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W94</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7TG</scope><scope>7UA</scope><scope>7XB</scope><scope>88I</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F1W</scope><scope>GNUQQ</scope><scope>H96</scope><scope>HCIFZ</scope><scope>KL.</scope><scope>L.G</scope><scope>M2P</scope><scope>PCBAR</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope></search><sort><creationdate>20021201</creationdate><title>A bi-directional gap model for simulating the directional thermal radiance of row crops</title><author>Chen, Liangfu ; Liu, Qinhuo ; Fan, Wenjie ; Li, Xiaowen ; Xiao, Qing ; Yan, Guangjian ; Tian, Guoliang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c281t-ea27163184da35afd34421b79a9f432b8d36d21359bb68aac463a72a8cde2cfa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Auroral kilometric radiation</topic><topic>Canopies</topic><topic>Canopy</topic><topic>Crops</topic><topic>directional</topic><topic>effects</topic><topic>Emissivity</topic><topic>Foliage</topic><topic>gap</topic><topic>Hot spots</topic><topic>hot-spot</topic><topic>Infrared emissions</topic><topic>Infrared radiation</topic><topic>Modelling</topic><topic>Plant cover</topic><topic>Probability theory</topic><topic>Radiance</topic><topic>radiation</topic><topic>row-structure</topic><topic>thermal</topic><topic>Thermal radiation</topic><topic>Vegetation</topic><topic>Wheat</topic><topic>Winter wheat</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Chen, Liangfu</creatorcontrib><creatorcontrib>Liu, Qinhuo</creatorcontrib><creatorcontrib>Fan, Wenjie</creatorcontrib><creatorcontrib>Li, Xiaowen</creatorcontrib><creatorcontrib>Xiao, Qing</creatorcontrib><creatorcontrib>Yan, Guangjian</creatorcontrib><creatorcontrib>Tian, Guoliang</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库-自然科学</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest One Sustainability</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>Earth, Atmospheric & Aquatic Science Collection</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>ProQuest Central Student</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>SciTech Premium Collection</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Science Database</collection><collection>Earth, Atmospheric & Aquatic Science Database</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central Basic</collection><jtitle>Science China. Earth sciences</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chen, Liangfu</au><au>Liu, Qinhuo</au><au>Fan, Wenjie</au><au>Li, Xiaowen</au><au>Xiao, Qing</au><au>Yan, Guangjian</au><au>Tian, Guoliang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A bi-directional gap model for simulating the directional thermal radiance of row crops</atitle><jtitle>Science China. Earth sciences</jtitle><addtitle>SCIENCE CHINA Earth Sciences</addtitle><date>2002-12-01</date><risdate>2002</risdate><volume>45</volume><issue>12</issue><spage>1087</spage><epage>1098</epage><pages>1087-1098</pages><issn>1674-7313</issn><issn>1006-9313</issn><eissn>1869-1897</eissn><eissn>1862-2801</eissn><abstract>Row crops are a kind of typical vegetation canopy between discrete canopy and continuous canopy. Kimes et al. studied the directional thermal radiation of row crops using the geometrical optical model, which simplified row structure as "box" and neglected the gap among foliage and did not consider the emissivity effects. In this work we take account of the gaps along illumination and viewing directions and propose a bi-direction gap model on the basis of the idea of gap probability of discrete vegetation canopy introduced by "Li-Strahler" and inter-correlation of continuous vegetation developed by Kuusk. It can be used to explain "hot spot" effects in thermal infrared region. The gap model has been validated by field experiment on winter wheat planted in shape of rows and results show that the gap model is better than Kimes' model in describing the directionality of thermal infrared emission for row crops.</abstract><cop>Dordrecht</cop><pub>Springer Nature B.V</pub><doi>10.1360/02yd9106</doi><tpages>12</tpages></addata></record> |
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| subjects | Auroral kilometric radiation Canopies Canopy Crops directional effects Emissivity Foliage gap Hot spots hot-spot Infrared emissions Infrared radiation Modelling Plant cover Probability theory Radiance radiation row-structure thermal Thermal radiation Vegetation Wheat Winter wheat |
| title | A bi-directional gap model for simulating the directional thermal radiance of row crops |
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