气候变化领域集成服务门户(CCPortal): Comparison of long-term solar radiation trends from CM SAF satellite products with ground-based data at the Iberian Peninsula for the period 1985

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DOI	10.1016/j.atmosres.2019.104839
	Comparison of long-term solar radiation trends from CM SAF satellite products with ground-based data at the Iberian Peninsula for the period 1985–2015
	Montero-Martín J.; Antón M.; Vaquero-Martínez J.; Sanchez-Lorenzo A.
发表日期	2020
ISSN	0169-8095
卷号	236
英文摘要	The aim of this work is to analyse the quality of long-term trends of surface incoming shortwave solar radiation (SIS) derived from two satellite datasets from the EUMETSAT Satellite Application on Climate Monitoring (CM SAF): the SIS Data Set from the Advanced Very High-Resolution Radiometer (AVHRR) data, Edition 2 (CLARA-A2), and the SIS Data Set-Heliosat, Edition 2 (SARAH-2). In order to achieve this goal, reference ground-based SIS measurements recorded at 12 stations over the Iberian Peninsula for the period 1985–2015 are used in this study. Firstly, the two satellite datasets have been compared against ground-based SIS measurements at 12 surface sites, showing a good agreement (i.e., R = 0.83 in SARAH-2 and R = 0.80 in CLARA-A2 on an annual basis). However, the two satellite datasets substantially underestimate the SIS trends found for the ground-based measurements. Thus, while the ground-based SIS data reported trends between −0.5 and + 6.5 Wm−2decade−1 (with statistical significance at 95% level at most stations), the satellite datasets gave trends lower for all locations (without statistical significance); between −0.4 and + 3.8 Wm−2decade−1 for CLARA-A2, and between +0.2 and + 2.8 Wm−2decade−1 for SARAH-2. It is worth to mention that the seasonal analysis of the SIS trends for both ground-based and satellite data displays a reasonably good agreement in spring (i.e., high positive trends), in accordance with the notable decline in the cloudiness for this season in the study region. By contrast, satellite products exhibit smaller SIS anomalies than ground-based data in summer, particularly from the beginning 2000s, which could be related to well-known decrease in the aerosol load over the study region. © 2019 Elsevier B.V.
英文关键词	CLARA-A2; Iberian Peninsula; SARAH-2; Surface solar radiation; Trend
学科领域	Advanced very high resolution radiometers (AVHRR); Solar radiation; CLARA-A2; Iberian Peninsula; SARAH-2; Surface solar radiation; Trend; Satellites; aerosol; annual variation; data set; ground-based measurement; satellite imagery; seasonal variation; solar radiation; trend analysis; Iberian Peninsula
语种	英语
scopus关键词	Advanced very high resolution radiometers (AVHRR); Solar radiation; CLARA-A2; Iberian Peninsula; SARAH-2; Surface solar radiation; Trend; Satellites; aerosol; annual variation; data set; ground-based measurement; satellite imagery; seasonal variation; solar radiation; trend analysis; Iberian Peninsula
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/120465
作者单位	Departamento de Física, Universidad de Extremadura, Badajoz, 06006, Spain
推荐引用方式 GB/T 7714	Montero-Martín J.,Antón M.,Vaquero-Martínez J.,等. Comparison of long-term solar radiation trends from CM SAF satellite products with ground-based data at the Iberian Peninsula for the period 1985–2015[J],2020,236.
APA	Montero-Martín J.,Antón M.,Vaquero-Martínez J.,&Sanchez-Lorenzo A..(2020).Comparison of long-term solar radiation trends from CM SAF satellite products with ground-based data at the Iberian Peninsula for the period 1985–2015.Atmospheric Research,236.
MLA	Montero-Martín J.,et al."Comparison of long-term solar radiation trends from CM SAF satellite products with ground-based data at the Iberian Peninsula for the period 1985–2015".Atmospheric Research 236(2020).