Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1117/12.2236942 |
Radiometric evaluation of the SNPP VIIRS reflective solar band sensor data records via inter-sensor comparison with Aqua MODIS | |
Chu, Mike1,2; Sun, Junqiang1,3; Wang, Menghua1 | |
通讯作者 | Chu, Mike |
会议名称 | Conference on Earth Observing Systems XXI |
会议日期 | AUG 30-SEP 01, 2016 |
会议地点 | San Diego, CA |
英文摘要 | The Visible Infrared Imaging Radiometer Suite (VIIRS) in the Suomi National Polar-orbiting Partnership (SNPP) satellite has been on orbit for nearly five years since its launch on 28 October 2011. The NOAA Ocean Color (OC) Team through the investigations of Sun and Wang has recently achieved robust calibration of the VIIRS reflective solar bands (RSBs) and generated its own version of the sensor data records (SDRs) with accuracy sufficient for ocean color applications. For the purpose of making a direct evaluation of the SDR performance, for both the OC version and the official Interface Processing Data Segment (IDPS) version, we utilize an inter-sensor radiometric comparison of SNPP VIIRS against the MODerate-resolution Imaging Spectroradiometer (MODIS) onboard the Aqua satellite for the spectrally matching RSBs. The VIIRS RSBs M1-M8, from 410 to 1238 nm in the spectral range, are tested. Except for the VIIRS M1 versus MODIS Band 8 result, the radiance comparison time series shows that the OC SDRs demonstrate good agreement with Aqua MODIS and overall better results than the IDPS SDRs, such as less variation, no large discrepancy at the beginning of the VIIRS mission, and no long-term drift. The VIIRS M1 versus MODIS Band 8 trend is the lone exception showing a drift in the OC SDR-based trends, but eventually a downward drift of 1% in Aqua MODIS Band 8 is identified to be the cause. It is readily concluded that the inter-comparison result directly demonstrates the OC SDRs to be correct within statistics, especially considering that the ocean color products derived from the OC SDRs have already matured and demonstrated good agreement with in situ data. On the other hand, the IDPS SDR results demonstrably expose the known inherent growing bias in RSB calibration that affects any versions of the SNPP VIIRS SDRs not using the correctly mitigated calibration baseline. The inter-comparison of two moderate-resolution sensors is also an exercise in statistics, and we briefly discuss key points of the pixel-based analysis that establishes the precision and the reliability of the result. |
英文关键词 | VIIRS MODIS Aqua RSB Inter-sensor comparison Intercalibration SNO |
来源出版物 | EARTH OBSERVING SYSTEMS XXI |
ISSN | 0277-786X |
EISSN | 1996-756X |
出版年 | 2016 |
卷号 | 9972 |
ISBN | 978-1-5106-0336-3 |
EISBN | 978-1-5106-0335-6 |
出版者 | SPIE-INT SOC OPTICAL ENGINEERING |
类型 | Proceedings Paper |
语种 | 英语 |
国家 | USA |
收录类别 | CPCI-S |
WOS记录号 | WOS:000389369500052 |
WOS关键词 | ON-ORBIT CALIBRATION ; SUOMI-NPP VIIRS ; STABILITY ; DIFFUSER ; PERFORMANCE ; DESERT |
WOS类目 | Instruments & Instrumentation ; Remote Sensing ; Optics ; Imaging Science & Photographic Technology |
WOS研究方向 | Instruments & Instrumentation ; Remote Sensing ; Optics ; Imaging Science & Photographic Technology |
资源类型 | 会议论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/305452 |
作者单位 | 1.Ctr Statellite Applicat & Res, NOAA Natl Environm Satellite Data & Informat Ser, E-RA3,5830 Univ Res Ct, College Pk, MD 20740 USA; 2.Colorado State Univ, Cooperat Inst Res Atmosphere, Ft Collins, CO 80523 USA; 3.Global Sci & Technol, 7855 Walker Dr,Suite 200, Greenbelt, MD 20770 USA |
推荐引用方式 GB/T 7714 | Chu, Mike,Sun, Junqiang,Wang, Menghua. Radiometric evaluation of the SNPP VIIRS reflective solar band sensor data records via inter-sensor comparison with Aqua MODIS[C]:SPIE-INT SOC OPTICAL ENGINEERING,2016. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。