Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.rse.2016.07.032 |
Continuous calibration improvement in solar reflective bands: Landsat 5 through Landsat 8 | |
Mishra, Nischal1; Helder, Dennis1; Barsi, Julia2; Markham, Brian3 | |
通讯作者 | Mishra, Nischal |
来源期刊 | REMOTE SENSING OF ENVIRONMENT
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ISSN | 0034-4257 |
EISSN | 1879-0704 |
出版年 | 2016 |
卷号 | 185页码:7-15 |
英文摘要 | Launched in February 2013, the Operational Land Imager (OLI) on-board Landsat 8 continues to perform exceedingly well and provides high quality science data globally. Several design enhancements have been made in the OLI instrument relative to prior Landsat instruments: pushbroom imaging which provides substantially improved Signal-to-Noise Ratio (SNR), spectral bandpasses refinement to avoid atmospheric absorption features, 12 bit data resolution to provide a larger dynamic range that limits the saturation level and increases SNR, a set of well-designed onboard calibrators to monitor the stability of the sensor. Some of these changes, such as refinements in spectral bandpasses compared to earlier Landsats and a well-designed on-board calibrator have a direct impact on the improved radiometric calibration performance of the instrument from both the stability of the response and the ability to track the changes. The on-board calibrator lamps and diffusers indicate that the instrument drift is generally <0.1% per year across the bands. The refined bandpasses of the OLI indicate that temporal uncertainty of better than 0.5% is possible when the instrument is trended over vicarious targets such as Pseudo Invariant Calibration Sites (PICS), a level of precision that was never achieved with the earlier Landsat instruments. With three years of data available, the stability measurements indicated by on-board calibrators and PICS agree to 0.5%, which is much better compared to the earlier Landsats, which is very encouraging and bodes well for the future Landsat missions too. (C) 2016 Elsevier Inc. All rights reserved. |
英文关键词 | Landsat Operation land imager (OLI) Enhanced thematic mapper plus (ETM plus ) Thematic mapper (TM) Radiometric calibration |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000386321900002 |
WOS关键词 | RADIOMETRIC CALIBRATION ; THEMATIC MAPPER ; IMAGER ; PERFORMANCE ; STABILITY ; DESERT ; SITES |
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/2XILL650/196011 |
作者单位 | 1.SDSU, Engn Off Res, Brookings, SD 57007 USA; 2.Sci Syst & Applicat Inc, NASA GSFC, Code 618, Greenbelt, MD 20771 USA; 3.NASA GSFC, Biospher Sci Lab, Code 618, Greenbelt, MD 20771 USA |
推荐引用方式 GB/T 7714 | Mishra, Nischal,Helder, Dennis,Barsi, Julia,et al. Continuous calibration improvement in solar reflective bands: Landsat 5 through Landsat 8[J],2016,185:7-15. |
APA | Mishra, Nischal,Helder, Dennis,Barsi, Julia,&Markham, Brian.(2016).Continuous calibration improvement in solar reflective bands: Landsat 5 through Landsat 8.REMOTE SENSING OF ENVIRONMENT,185,7-15. |
MLA | Mishra, Nischal,et al."Continuous calibration improvement in solar reflective bands: Landsat 5 through Landsat 8".REMOTE SENSING OF ENVIRONMENT 185(2016):7-15. |
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