气候变化领域集成服务门户(CCPortal): On the geometric accuracy and stability of MSG SEVIRI images

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DOI	10.1016/j.atmosenv.2021.118645
	On the geometric accuracy and stability of MSG SEVIRI images
	Debaecker V.; Kocaman S.; Saunier S.; Garcia K.; Bas S.; Just D.
发表日期	2021
ISSN	1352-2310
卷号	262
英文摘要	Monitoring the geometric quality and temporal stability of Earth Observation satellite sensors is a major task of satellite vendors. As an owner and operator of widely used meteorological satellites, EUMETSAT (European Organisation for the Exploitation of Meteorological Satellites) carries out operational activities and scientific studies on the radiometric and geometric quality assessments of geostationary Meteosat satellites among others. As part of Level 1 Product Monitoring - Evolution Studies initiated by EUMETSAT, a new methodology has been developed and implemented as a prototype software, namely the Geometric Quality Assessment (GQA) Tool; which enhances image local texture, extracts prominent features and matches them via area-based least squares, and eliminates possible outliers using a set of rules. This article presents the results of algorithm validation activities carried out by using time series images of the Spinning Enhanced Visible and InfraRed Imager (SEVIRI) sensor aboard Meteosat Second Generation (MSG) satellites and MEdium Resolution Imaging Spectrometer (MERIS) global mosaics as reference to evaluate short- and long-term geometric temporal stability. Meteosat-11 SEVIRI time series data from a full-day and one year were employed for this purpose. In addition, the geometric quality of Meteosat-8 over Indian Ocean and Meteosat-10 in rapid scan mode was assessed for single acquisitions. The results show that the geometric accuracy of the evaluated datasets yield to the mean shifts up to one km in East-West (x) and North-South (y) directions, with larger errors in the y direction. The image inner geometric accuracy assessments revealed displacement errors with strip pattern in the three spectral bands (i.e. high-resolution visible, infra-red 10.8 and visible 0.8) evaluated within the framework. © 2021 Elsevier Ltd
关键词	Geometric quality MSG SEVIRI Sub-pixel localization Temporal stability Validation
语种	英语
scopus关键词	Geometry; Geostationary satellites; Image enhancement; Software prototyping; Stability; Textures; Geometric accuracy; Geometric quality; Localisation; Meteosat second generation spinning enhanced visible and infrared imager; Meteosat second generations; Spinning Enhanced Visible and Infrared Imager; Sub-pixel localization; Sub-pixels; Temporal stability; Validation; Time series
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248273
作者单位	Telespazio France SAS, Toulouse, France; Department of Geomatics Engineering, Hacettepe University, Ankara, Turkey; European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT), Darmstadt, Germany
推荐引用方式 GB/T 7714	Debaecker V.,Kocaman S.,Saunier S.,et al. On the geometric accuracy and stability of MSG SEVIRI images[J],2021,262.
APA	Debaecker V.,Kocaman S.,Saunier S.,Garcia K.,Bas S.,&Just D..(2021).On the geometric accuracy and stability of MSG SEVIRI images.ATMOSPHERIC ENVIRONMENT,262.
MLA	Debaecker V.,et al."On the geometric accuracy and stability of MSG SEVIRI images".ATMOSPHERIC ENVIRONMENT 262(2021).