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DOI | 10.1007/s00382-018-4153-z |
The sensitivity of the atmospheric branch of the global water cycle to temperature fluctuations at synoptic to decadal time-scales in different satellite- and model-based products | |
Nogueira, Miguel | |
2019 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
卷号 | 52页码:617-636 |
文章类型 | Article |
语种 | 英语 |
国家 | Portugal |
英文摘要 | Spectral analysis of global-mean precipitation, P, evaporation, E, precipitable water, W, and surface temperature, T-s, revealed significant variability from sub-daily to multi-decadal time-scales, superposed on high-amplitude diurnal and yearly peaks. Two distinct regimes emerged from a transition in the spectral exponents, . The weather regime covering time-scales<10days with 1; and the macroweather regime extending from a few months to a few decades with 0<<1. Additionally, the spectra showed a generally good statistical agreement amongst several different model- and satellite-based datasets. Detrended cross-correlation analysis (DCCA) revealed three important results which are robust across all datasets: (1) Clausius-Clapeyron (C-C) relationship is the dominant mechanism of W non-periodic variability at multi-year time-scales; (2) C-C is not the dominant control of W, P or E non-periodic variability at time-scales below about 6months, where the weather regime is approached and other mechanisms become important; (3) C-C is not a dominant control for P or E over land throughout the entire time-scale range considered. Furthermore, it is suggested that the atmosphere and oceans start to act as a single coupled system at time-scales>1-2 years, while at time-scales<6months they are not the dominant drivers of each other. For global-ocean and full-globe averages, (DCCA) showed large spread of the C-C importance for P and E variability amongst different datasets at multi-year time-scales, ranging from negligible (<0.3) to high (0.6-0.8) values. Hence, state-of-the-art climate datasets have significant uncertainties in the representation of macroweather precipitation and evaporation variability and its governing mechanisms. |
英文关键词 | Global water cycle Clausius-Clapeyron Multiscale analysis Climate sensitivity Detrended cross-correlation analysis Climate variability |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000460619200036 |
WOS关键词 | HYDROLOGICAL CYCLE ; WIDE-RANGE ; PRECIPITATION ; CLIMATE ; VARIABILITY ; MOISTURE ; TRENDS ; OCEAN |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/35879 |
专题 | 气候变化 |
作者单位 | Univ Lisbon, Fac Ciencias, Inst Dom Luiz, P-1749016 Lisbon, Portugal |
推荐引用方式 GB/T 7714 | Nogueira, Miguel. The sensitivity of the atmospheric branch of the global water cycle to temperature fluctuations at synoptic to decadal time-scales in different satellite- and model-based products[J]. CLIMATE DYNAMICS,2019,52:617-636. |
APA | Nogueira, Miguel.(2019).The sensitivity of the atmospheric branch of the global water cycle to temperature fluctuations at synoptic to decadal time-scales in different satellite- and model-based products.CLIMATE DYNAMICS,52,617-636. |
MLA | Nogueira, Miguel."The sensitivity of the atmospheric branch of the global water cycle to temperature fluctuations at synoptic to decadal time-scales in different satellite- and model-based products".CLIMATE DYNAMICS 52(2019):617-636. |
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