Solar-Blind Ultraviolet Upwelling Radiance Diurnal Variation Led by Observation Geometry Factors on Geostationary Attitude Sensor Limb Viewing
In this satellite autonomous navigation feasibility study on geostationary orbit using the ultraviolet (UV) attitude sensor, the solar-blind UV (SBUV) upwelling radiance spatial distributions from the Earth surface points or the limb viewing path are simulated every two hours in all seasons based on...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Springer
2016-01-01
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| Series: | Terrestrial, Atmospheric and Oceanic Sciences |
| Online Access: |
http://tao.cgu.org.tw/media/k2/attachments/v276p943.pdf
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| _version_ | 1818160568665636864 |
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| author | Chun-guang Lyu Jia Tian Wen-bo Yang Qing-jiu Tian Ying-hao Lin Zong-ming Liu Han-mo Zhang |
| author_facet | Chun-guang Lyu Jia Tian Wen-bo Yang Qing-jiu Tian Ying-hao Lin Zong-ming Liu Han-mo Zhang |
| author_sort | Chun-guang Lyu |
| collection | DOAJ |
| description | In this satellite autonomous navigation feasibility study on geostationary orbit using the ultraviolet (UV) attitude sensor, the solar-blind UV (SBUV) upwelling radiance spatial distributions from the Earth surface points or the limb viewing path are simulated every two hours in all seasons based on the MODTRAN4 model. The target points are arranged from where the sensor can receive the Earth’s radiance, including eight limb viewing points in the 0 - 90 km altitude range with an interval of 5 km and nine surface points. A hypothetical UV attitude sensor with 9.6° field of view is set at a geostationary orbit, 3.6 × 107 m away from Equator sea level. The nadir point of which is considered to be located at 102°E and the Equator. The results show that SBUV (200 - 280 nm) upwelling radiance from the limb viewing points can increase to a maximum and then decrease with the increase in limb points altitude. The average SBUV radiance on the observation plane presents a regular bright crescent or ring, which has the maximum at about 0.433 W m-2 sr-1 μm-1 at 50 - 60 km altitude. The maximum upwelling radiance in the 242 - 267 nm spectra has the optimal characteristic considering the contrast and maximum altitude radiance continuity at the limb points. |
| first_indexed | 2024-12-11T16:03:57Z |
| format | Article |
| id | doaj.art-b5137207756a41ebbe8c22895bbe64c7 |
| institution | Directory Open Access Journal |
| issn | 1017-0839 2311-7680 |
| language | English |
| last_indexed | 2024-12-11T16:03:57Z |
| publishDate | 2016-01-01 |
| publisher | Springer |
| record_format | Article |
| series | Terrestrial, Atmospheric and Oceanic Sciences |
| spelling | doaj.art-b5137207756a41ebbe8c22895bbe64c72022-12-22T00:59:15ZengSpringerTerrestrial, Atmospheric and Oceanic Sciences1017-08392311-76802016-01-0127694310.3319/TAO.2016.05.11.01(AA)Solar-Blind Ultraviolet Upwelling Radiance Diurnal Variation Led by Observation Geometry Factors on Geostationary Attitude Sensor Limb ViewingChun-guang LyuJia TianWen-bo YangQing-jiu TianYing-hao LinZong-ming LiuHan-mo ZhangIn this satellite autonomous navigation feasibility study on geostationary orbit using the ultraviolet (UV) attitude sensor, the solar-blind UV (SBUV) upwelling radiance spatial distributions from the Earth surface points or the limb viewing path are simulated every two hours in all seasons based on the MODTRAN4 model. The target points are arranged from where the sensor can receive the Earth’s radiance, including eight limb viewing points in the 0 - 90 km altitude range with an interval of 5 km and nine surface points. A hypothetical UV attitude sensor with 9.6° field of view is set at a geostationary orbit, 3.6 × 107 m away from Equator sea level. The nadir point of which is considered to be located at 102°E and the Equator. The results show that SBUV (200 - 280 nm) upwelling radiance from the limb viewing points can increase to a maximum and then decrease with the increase in limb points altitude. The average SBUV radiance on the observation plane presents a regular bright crescent or ring, which has the maximum at about 0.433 W m-2 sr-1 μm-1 at 50 - 60 km altitude. The maximum upwelling radiance in the 242 - 267 nm spectra has the optimal characteristic considering the contrast and maximum altitude radiance continuity at the limb points. http://tao.cgu.org.tw/media/k2/attachments/v276p943.pdf |
| spellingShingle | Chun-guang Lyu Jia Tian Wen-bo Yang Qing-jiu Tian Ying-hao Lin Zong-ming Liu Han-mo Zhang Solar-Blind Ultraviolet Upwelling Radiance Diurnal Variation Led by Observation Geometry Factors on Geostationary Attitude Sensor Limb Viewing Terrestrial, Atmospheric and Oceanic Sciences |
| title | Solar-Blind Ultraviolet Upwelling Radiance Diurnal Variation Led by Observation Geometry Factors on Geostationary Attitude Sensor Limb Viewing |
| title_full | Solar-Blind Ultraviolet Upwelling Radiance Diurnal Variation Led by Observation Geometry Factors on Geostationary Attitude Sensor Limb Viewing |
| title_fullStr | Solar-Blind Ultraviolet Upwelling Radiance Diurnal Variation Led by Observation Geometry Factors on Geostationary Attitude Sensor Limb Viewing |
| title_full_unstemmed | Solar-Blind Ultraviolet Upwelling Radiance Diurnal Variation Led by Observation Geometry Factors on Geostationary Attitude Sensor Limb Viewing |
| title_short | Solar-Blind Ultraviolet Upwelling Radiance Diurnal Variation Led by Observation Geometry Factors on Geostationary Attitude Sensor Limb Viewing |
| title_sort | solar blind ultraviolet upwelling radiance diurnal variation led by observation geometry factors on geostationary attitude sensor limb viewing |
| url |
http://tao.cgu.org.tw/media/k2/attachments/v276p943.pdf
|
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