An Automatic Instrument to Study the Spatial Scaling Behavior of Emissivity
In this paper, the design of an automatic instrument for measuring the spatialdistribution of land surface emissivity is presented, which makes the direct in situmeasurement of the spatial distribution of emissivity possible. The significance of this newinstrument lies in two aspects. One is that it...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2008-01-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/8/2/800/ |
| _version_ | 1828282819986587648 |
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| author | Jun Xia Shaohui Chen Xiaomin Sun Hongbo Su Renhua Zhang Jing Tian |
| author_facet | Jun Xia Shaohui Chen Xiaomin Sun Hongbo Su Renhua Zhang Jing Tian |
| author_sort | Jun Xia |
| collection | DOAJ |
| description | In this paper, the design of an automatic instrument for measuring the spatialdistribution of land surface emissivity is presented, which makes the direct in situmeasurement of the spatial distribution of emissivity possible. The significance of this newinstrument lies in two aspects. One is that it helps to investigate the spatial scalingbehavior of emissivity and temperature; the other is that, the design of the instrumentprovides theoretical and practical foundations for the implement of measuring distributionof surface emissivity on airborne or spaceborne. To improve the accuracy of themeasurements, the emissivity measurement and its uncertainty are examined in a series ofcarefully designed experiments. The impact of the variation of target temperature and theenvironmental irradiance on the measurement of emissivity is analyzed as well. Inaddition, the ideal temperature difference between hot environment and cool environmentis obtained based on numerical simulations. Finally, the scaling behavior of surfaceemissivity caused by the heterogeneity of target is discussed. |
| first_indexed | 2024-04-13T08:36:24Z |
| format | Article |
| id | doaj.art-250506127bd84929ba636abdf7021e0f |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-13T08:36:24Z |
| publishDate | 2008-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-250506127bd84929ba636abdf7021e0f2022-12-22T02:54:05ZengMDPI AGSensors1424-82202008-01-0182800816An Automatic Instrument to Study the Spatial Scaling Behavior of EmissivityJun XiaShaohui ChenXiaomin SunHongbo SuRenhua ZhangJing TianIn this paper, the design of an automatic instrument for measuring the spatialdistribution of land surface emissivity is presented, which makes the direct in situmeasurement of the spatial distribution of emissivity possible. The significance of this newinstrument lies in two aspects. One is that it helps to investigate the spatial scalingbehavior of emissivity and temperature; the other is that, the design of the instrumentprovides theoretical and practical foundations for the implement of measuring distributionof surface emissivity on airborne or spaceborne. To improve the accuracy of themeasurements, the emissivity measurement and its uncertainty are examined in a series ofcarefully designed experiments. The impact of the variation of target temperature and theenvironmental irradiance on the measurement of emissivity is analyzed as well. Inaddition, the ideal temperature difference between hot environment and cool environmentis obtained based on numerical simulations. Finally, the scaling behavior of surfaceemissivity caused by the heterogeneity of target is discussed.http://www.mdpi.com/1424-8220/8/2/800/surface emissivityscalinginstrumentremote sensing |
| spellingShingle | Jun Xia Shaohui Chen Xiaomin Sun Hongbo Su Renhua Zhang Jing Tian An Automatic Instrument to Study the Spatial Scaling Behavior of Emissivity Sensors surface emissivity scaling instrument remote sensing |
| title | An Automatic Instrument to Study the Spatial Scaling Behavior of Emissivity |
| title_full | An Automatic Instrument to Study the Spatial Scaling Behavior of Emissivity |
| title_fullStr | An Automatic Instrument to Study the Spatial Scaling Behavior of Emissivity |
| title_full_unstemmed | An Automatic Instrument to Study the Spatial Scaling Behavior of Emissivity |
| title_short | An Automatic Instrument to Study the Spatial Scaling Behavior of Emissivity |
| title_sort | automatic instrument to study the spatial scaling behavior of emissivity |
| topic | surface emissivity scaling instrument remote sensing |
| url | http://www.mdpi.com/1424-8220/8/2/800/ |
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