Arid
DOI10.1016/j.rse.2006.03.011
Changes in land surface temperatures and NDVI values over Europe between 1982 and 1999
Julien, Yves; Sobrino, Jose A.; Verhoef, Wout
通讯作者Sobrino, Jose A.
来源期刊REMOTE SENSING OF ENVIRONMENT
ISSN0034-4257
出版年2006
卷号103期号:1页码:43-55
英文摘要

We used land surface temperature (LST) algorithms and NDVI values to estimate changes in vegetation in the European continent between 1982 and 1999 from the Pathfinder AVHRR Land (PAL) dataset. These two parameters are monitored through HANTS (Harmonic ANalysis of Time Series) software, which allows the simultaneous observation of mean value, first harmonic amplitude and phase behaviors in the same image. These results for each complete year of data show the effect of volcanic aerosols and orbital drift on PAL data. Comparison of time series of HANTS cloud-free time series with the original time series for various land cover proves that this software is useful for LST analysis, although primarily designed for NDVI applications. Comparison of yearly averages of HANTS LST over the whole Europe with air temperature confirms the validity of the results. Maps of the evolution for both parameters between periods 1982/1986 and 1995/1999 have been elaborated: NDVI data show the well confirmed trend of increase over Europe (up to 0.1 in NDVI), Southern Europe seeing a decrease in NDVI (-0.02). LST averages stay stable or slightly decrease (up to -1.5 K) over the whole continent, except for southern areas for which the increase is up to 2.5 K. These results evidence that and and semi-arid areas of Southern Europe have become more arid, the rest of Europe seeing an increase in its wood land proportion, while seasonal amplitude in Northern Europe has decreased. (c) 2006 Elsevier Inc. All rights reserved.


英文关键词NDVI LST Europe pathfinder AVHRR land dataset HANTS
类型Article
语种英语
国家Spain ; Netherlands
收录类别SCI-E
WOS记录号WOS:000238901000004
WOS关键词AVHRR DATA ; VEGETATION INDEX ; COMPOSITE IMAGES ; TIME-SERIES ; NOAA-AVHRR ; FOREST ; CLIMATE ; TRENDS
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/2XILL650/152941
作者单位(1)Univ Valencia, Global Change Unit, E-46003 Valencia, Spain;(2)Natl Aerosp Lab, Amsterdam, Netherlands
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GB/T 7714
Julien, Yves,Sobrino, Jose A.,Verhoef, Wout. Changes in land surface temperatures and NDVI values over Europe between 1982 and 1999[J],2006,103(1):43-55.
APA Julien, Yves,Sobrino, Jose A.,&Verhoef, Wout.(2006).Changes in land surface temperatures and NDVI values over Europe between 1982 and 1999.REMOTE SENSING OF ENVIRONMENT,103(1),43-55.
MLA Julien, Yves,et al."Changes in land surface temperatures and NDVI values over Europe between 1982 and 1999".REMOTE SENSING OF ENVIRONMENT 103.1(2006):43-55.
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