干旱区生态环境知识资源中心(Arid): An Analysis of Spatio-Temporal Relationship between Satellite-Based Land Surface Temperature and Station-Based Near-Surface Air Temperature over Brazil

Arid

DOI	10.3390/rs14174420
	An Analysis of Spatio-Temporal Relationship between Satellite-Based Land Surface Temperature and Station-Based Near-Surface Air Temperature over Brazil
	Liu, Jiang; Hagan, Daniel Fiifi Tawia; Holmes, Thomas R.; Liu, Yi
通讯作者	Liu, Y
来源期刊	REMOTE SENSING
EISSN	2072-4292
出版年	2022
卷号	14 期号:17
英文摘要	A better understanding of the relationship between land surface temperature (Ts) and near-surface air temperature (Ta) is crucial for improving the simulation accuracy of climate models, developing retrieval schemes for soil and vegetation moisture, and estimating large-scale Ta from satellite-based Ts observations. In this study, we investigated the relationship between multiple satellite-based Ts products, derived from the Atmospheric Infrared Sounder (AIRS) and the Moderate Resolution Imaging Spectroradiometer (MODIS) onboard Aqua satellite, and Ta from 204 meteorological stations over Brazil during 2003-2016. Monthly satellite-based Ts products used in this study include: (1) AIRS Version 6 with 1 degrees spatial resolution, (2) AIRS Version 7 with 1 degrees spatial resolution, (3) MODIS Collection 6 with 0.05 degrees spatial resolution, and (4) MODIS Collection 6 with 1 degrees spatial resolution re-sampled from (3) for a direct comparison with AIRS products. We found that satellite-based Ts is lower than Ta over the forest area, but higher than Ta over the non-forest area. Nevertheless, the correlation coefficients (R) between monthly Ta and four Ts products during 2003-2016 are greater than 0.8 over most stations. The long-term trend analysis shows a general warming trend in temperatures, particularly over the central and eastern parts of Brazil. The satellite products could also observe the increasing Ts over the deforestation region. Furthermore, we examined the temperature anomalies during three drought events in the dry season of 2005, 2010, and 2015. All products show similar spatio-temporal patterns, with positive temperature anomalies expanding in areal coverage and magnitude from the 2005 to 2015 event. The above results show that satellite-based Ts is sensitive in reflecting environmental changes such as deforestation and extreme climatic events, and can be used as an alternative to Ta for climatological studies. Moreover, the observed differences between Ts and Ta may inform how thermal assumptions can be improved in satellite-based retrievals of soil and vegetation moisture or evapotranspiration.
英文关键词	land surface temperature near-surface air temperature Brazil trends anomalies
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000851731200001
WOS关键词	DAILY MAXIMUM ; TEMPORAL RELATIONSHIP ; ENERGY BALANCE ; CLIMATE-CHANGE ; MODIS LST ; PRODUCTS ; DESERTIFICATION ; DEFORESTATION ; VARIABILITY ; EVAPORATION
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Remote Sensing ; Imaging Science & Photographic Technology
WOS研究方向	Environmental Sciences & Ecology ; Geology ; 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/2XILL650/394195
推荐引用方式 GB/T 7714	Liu, Jiang,Hagan, Daniel Fiifi Tawia,Holmes, Thomas R.,et al. An Analysis of Spatio-Temporal Relationship between Satellite-Based Land Surface Temperature and Station-Based Near-Surface Air Temperature over Brazil[J],2022,14(17).
APA	Liu, Jiang,Hagan, Daniel Fiifi Tawia,Holmes, Thomas R.,&Liu, Yi.(2022).An Analysis of Spatio-Temporal Relationship between Satellite-Based Land Surface Temperature and Station-Based Near-Surface Air Temperature over Brazil.REMOTE SENSING,14(17).
MLA	Liu, Jiang,et al."An Analysis of Spatio-Temporal Relationship between Satellite-Based Land Surface Temperature and Station-Based Near-Surface Air Temperature over Brazil".REMOTE SENSING 14.17(2022).