干旱区生态环境知识资源中心(Arid): Terra and Aqua MODIS TEB intercomparison using Himawari-8/AHI as reference

Arid

DOI	10.1117/1.JRS.13.017501
	Terra and Aqua MODIS TEB intercomparison using Himawari-8/AHI as reference
	Chang, Tiejun 1; Xiong, Xiaoxiong 2; Angal, Amit 1
通讯作者	Chang, Tiejun
来源期刊	JOURNAL OF APPLIED REMOTE SENSING
ISSN	1931-3195
出版年	2019
卷号	13 期号:1
英文摘要	Intercomparison between the two MODIS instruments is very useful for both the instrument calibration and its uncertainty assessment. Terra and Aqua MODIS have almost identical relative spectral response, spatial resolution, and dynamic range for each band, so the site-dependent effect from spectral mismatch for their comparison is negligible. Major challenges in cross-sensor comparison of instruments on different satellites include differences in observation time and view angle over selected pseudoinvariant sites. The simultaneous nadir overpasses (SNO) between the two satellites are mostly applied for comparison and the scene under SNO varies. However, there is a dearth of SNO between the Terra and Aqua. This work focuses on an intercomparison method for MODIS thermal emissive bands using Himawari-8 Advanced Himawari Imager (AHI) as a reference. Eleven thermal emissive bands on MODIS are at least to some degree spectrally matched to the AHI bands. The sites selected for the comparison are an ocean area around the Himawari-8 suborbital point and the Strzelecki Desert located south of the Himawari-8 suborbital point. The time difference between the measurements from AHI and MODIS is <5 min. The comparison is performed using 2017 collection 6.1 L1B data for MODIS. The MODIS-AHI difference is corrected to remove the view angle dependence. The Terra-Aqua MODIS difference for the selected TEB is up to 0.6 K with the exception of band 30. Band 30 has the largest difference, which is site dependent, most likely due to a crosstalk effect. Over the ocean, the band 30 difference between the two MODIS instruments is around 1.75 K, while over the desert; the difference is around 0.68 K. The MODIS precision is also compared from the Gaussian regression of the double difference. Terra bands 27 to 30 have significant extra noise due to crosstalk effects on these bands. These Terra-Aqua comparison results are used for MODIS calibration assessments and are beneficial for future calibration algorithm improvement. The impact of daytime measurements and the scene dependence are also discussed. (C) 2019 Society of Photo-Optical Instrumentation Engineers (SPIE)
英文关键词	intercomparison MODIS TEB radiometric calibration Himawari-8 AHI
类型	Article
语种	英语
国家	USA
开放获取类型	Bronze, Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000461214300001
WOS关键词	ON-ORBIT CALIBRATION ; SURFACE-TEMPERATURE ; LONG-TERM ; LAND ; PRODUCTS ; EMISSIVITY ; VIIRS
WOS类目	Environmental Sciences ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Remote Sensing ; Imaging Science & Photographic Technology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/216695
作者单位	1.Sci Syst & Applicat Inc, Lanham, MD 20706 USA; 2.NASA, Sci & Explorat Directorate, GSFC, Greenbelt, MD USA
推荐引用方式 GB/T 7714	Chang, Tiejun,Xiong, Xiaoxiong,Angal, Amit. Terra and Aqua MODIS TEB intercomparison using Himawari-8/AHI as reference[J],2019,13(1).
APA	Chang, Tiejun,Xiong, Xiaoxiong,&Angal, Amit.(2019).Terra and Aqua MODIS TEB intercomparison using Himawari-8/AHI as reference.JOURNAL OF APPLIED REMOTE SENSING,13(1).
MLA	Chang, Tiejun,et al."Terra and Aqua MODIS TEB intercomparison using Himawari-8/AHI as reference".JOURNAL OF APPLIED REMOTE SENSING 13.1(2019).