A Comparison of Thermal Growing Season Indices for the Northern China during 1961–2015
Vegetation phenology is one of the most direct and sensitive indicators of terrestrial ecosystem in response to climate change. Based on daily mean air temperature at 877 meteorological stations over northern China from 1961 to 2015, the correlations and differences for different definitions of the...
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Hindawi Limited
2017-01-01
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Series: | Advances in Meteorology |
Online Access: | http://dx.doi.org/10.1155/2017/6718729 |
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doaj-4306a2e82203430bba4ea214c8a0ecfc2020-11-25T01:07:43ZengHindawi LimitedAdvances in Meteorology1687-93091687-93172017-01-01201710.1155/2017/67187296718729A Comparison of Thermal Growing Season Indices for the Northern China during 1961–2015Linli Cui0Jun Shi1Yue Ma2Shanghai Satellite Remote-Sensing and Application Centre, Shanghai 200030, ChinaShanghai Key Laboratory of Meteorology and Health, Shanghai 200030, ChinaShanghai Climate Center, Shanghai Meteorological Bureau, Shanghai 200030, ChinaVegetation phenology is one of the most direct and sensitive indicators of terrestrial ecosystem in response to climate change. Based on daily mean air temperature at 877 meteorological stations over northern China from 1961 to 2015, the correlations and differences for different definitions of the growing season parameters (start, end, and length of the growing season) were investigated, and results show that higher correlations of 0.81–0.93 are found when indices which do not consider frost are compared with those of the same length which include the frost criteria, and lower correlations of 0.63–0.79 are observed when the length of indices is different and one of the indices includes the frost criteria or EI 3 (10 d < 5°C) is included. Lower correlations and larger differences are generally observed in the eastern and northwestern parts while higher correlation and smaller difference appeared in the northeastern and southwestern parts of northern China; thus the applicability comparison and selection of different definitions have important influence on the identifying and counting of the timing and length of the growing season in the eastern and northwestern regions of northern China.http://dx.doi.org/10.1155/2017/6718729 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Linli Cui Jun Shi Yue Ma |
spellingShingle |
Linli Cui Jun Shi Yue Ma A Comparison of Thermal Growing Season Indices for the Northern China during 1961–2015 Advances in Meteorology |
author_facet |
Linli Cui Jun Shi Yue Ma |
author_sort |
Linli Cui |
title |
A Comparison of Thermal Growing Season Indices for the Northern China during 1961–2015 |
title_short |
A Comparison of Thermal Growing Season Indices for the Northern China during 1961–2015 |
title_full |
A Comparison of Thermal Growing Season Indices for the Northern China during 1961–2015 |
title_fullStr |
A Comparison of Thermal Growing Season Indices for the Northern China during 1961–2015 |
title_full_unstemmed |
A Comparison of Thermal Growing Season Indices for the Northern China during 1961–2015 |
title_sort |
comparison of thermal growing season indices for the northern china during 1961–2015 |
publisher |
Hindawi Limited |
series |
Advances in Meteorology |
issn |
1687-9309 1687-9317 |
publishDate |
2017-01-01 |
description |
Vegetation phenology is one of the most direct and sensitive indicators of terrestrial ecosystem in response to climate change. Based on daily mean air temperature at 877 meteorological stations over northern China from 1961 to 2015, the correlations and differences for different definitions of the growing season parameters (start, end, and length of the growing season) were investigated, and results show that higher correlations of 0.81–0.93 are found when indices which do not consider frost are compared with those of the same length which include the frost criteria, and lower correlations of 0.63–0.79 are observed when the length of indices is different and one of the indices includes the frost criteria or EI 3 (10 d < 5°C) is included. Lower correlations and larger differences are generally observed in the eastern and northwestern parts while higher correlation and smaller difference appeared in the northeastern and southwestern parts of northern China; thus the applicability comparison and selection of different definitions have important influence on the identifying and counting of the timing and length of the growing season in the eastern and northwestern regions of northern China. |
url |
http://dx.doi.org/10.1155/2017/6718729 |
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