Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2017JD027849 |
Intercomparison Between VIIRS and CrIS by Taking Into Account the CrIS Subpixel Cloudiness and Viewing Geometry | |
Gong, Xinya1,2,3; Li, Zhenglong2; Li, Jun2; Moeller, Christopher C.2; Cao, Changyong4; Wang, Wenhui5; Menzel, W. Paul2 | |
2018-05-27 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES |
ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2018 |
卷号 | 123期号:10页码:5335-5345 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; USA |
英文摘要 | The Cross-track Infrared Sounder (CrIS) onboard the Suomi National Polar-orbiting Partnership (SNPP) has high radiometric accuracy, which can be used to intercompare and understand the radiometric performance of the thermal emissive bands of the Visible Infrared Imaging Radiometer Suite (VIIRS) onboard the same platform. Previous studies usually selected uniform scenes to avoid potential uncertainties due to geolocation errors. This study focuses on all scenes (including nonuniform scenes), as well as CrIS subpixel cloudiness, local zenith angle and surface type, and their impacts on VIIRS/CrIS intercomparisons. A geolocation error correction scheme is applied to mitigate the geolocation mismatch between CrIS and VIIRS. Intercomparison results of three days from 19 to 21 September 2016, a quarterly warm up/cool down calibration period, show overall good agreement in terms of radiance biases (less than 0.2K in terms of brightness temperature) between VIIRS and CrIS, for scene temperatures between 220 and 300K; however, larger biases are evident outside of this range. The three factorsCrIS subpixel cloudiness, local zenith angle, and surface typeshow weak impacts on VIIRS radiance biases. Both clear-sky and overcast conditions have slightly different radiance biases from other partially cloudy conditions because of more contributions from colder or warmer scenes. The time series show the impact of warm up/cool down and the effectiveness of the correction algorithm for reprocessing VIIRS M15 and M16 data sets. The methods and tools can be applied to monitor and validate other infrared imager/sounder duos onboard the same platform. |
英文关键词 | VIIRS CrIS SDR intercomparison subpixel cloudiness local zenith angle |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000435445600033 |
WOS关键词 | S-NPP ; SATELLITE ; PERFORMANCE ; CALIBRATION |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/33996 |
专题 | 气候变化 |
作者单位 | 1.Chinese Acad Sci, Coll Earth & Planetary Sci, Inst Atmospher Phys, Beijing, Peoples R China; 2.Univ Wisconsin Madison, Cooperat Inst Meteorol Satellite Studies, Madison, WI USA; 3.Univ Chinese Acad Sci, Beijing, Peoples R China; 4.NOAA, Ctr Satellite Applicat & Res, College Pk, MD USA; 5.Earth Resource Technol Inc, Laurel, MD USA |
推荐引用方式 GB/T 7714 | Gong, Xinya,Li, Zhenglong,Li, Jun,et al. Intercomparison Between VIIRS and CrIS by Taking Into Account the CrIS Subpixel Cloudiness and Viewing Geometry[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2018,123(10):5335-5345. |
APA | Gong, Xinya.,Li, Zhenglong.,Li, Jun.,Moeller, Christopher C..,Cao, Changyong.,...&Menzel, W. Paul.(2018).Intercomparison Between VIIRS and CrIS by Taking Into Account the CrIS Subpixel Cloudiness and Viewing Geometry.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,123(10),5335-5345. |
MLA | Gong, Xinya,et al."Intercomparison Between VIIRS and CrIS by Taking Into Account the CrIS Subpixel Cloudiness and Viewing Geometry".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 123.10(2018):5335-5345. |
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