Gradation of complexity and predictability of hydrological processes | |
Sang, Yan-Fang1; Singh, Vijay P.2,3; Wen, Jun4; Liu, Changming1 | |
刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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2015-06-16 | |
卷号 | 120期号:11页码:5334-5343 |
关键词 | hydrological processes complexity predictability climate change modeling |
ISSN号 | 2169-897X |
DOI | 10.1002/2014JD022844 |
通讯作者 | Sang, Yan-Fang(sangyf@igsnrr.ac.cn) |
英文摘要 | Quantification of the complexity and predictability of hydrological systems is important for evaluating the impact of climate change on hydrological processes, and for guiding water activities. In the literature, the focus seems to have been on describing the complexity of spatiotemporal distribution of hydrological variables, but little attention has been paid to the study of complexity gradation, because the degree of absolute complexity of hydrological systems cannot be objectively evaluated. Here we show that complexity and predictability of hydrological processes can be graded into three ranks (low, middle, and high). The gradation is based on the difference in the energy distribution of hydrological series and that of white noise under multitemporal scales. It reflects different energy concentration levels and contents of deterministic components of the hydrological series in the three ranks. Higher energy concentration level reflects lower complexity and higher predictability, but scattered energy distribution being similar to white noise has the highest complexity and is almost unpredictable. We conclude that the three ranks (low, middle, and high) approximately correspond to deterministic, stochastic, and random hydrological systems, respectively. The result of complexity gradation can guide hydrological observations and modeling, and identification of similarity patterns among different hydrological systems. |
收录类别 | SCI |
WOS关键词 | MULTISCALE ENTROPY ANALYSIS ; TIME-SERIES ; INFORMATION-THEORY ; PRACTICAL GUIDE ; WAVELET ; VARIABILITY ; BASIN ; CHINA |
WOS研究方向 | Meteorology & Atmospheric Sciences |
WOS类目 | Meteorology & Atmospheric Sciences |
语种 | 英语 |
出版者 | AMER GEOPHYSICAL UNION |
WOS记录号 | WOS:000356975700003 |
内容类型 | 期刊论文 |
URI标识 | http://www.corc.org.cn/handle/1471x/2555571 |
专题 | 寒区旱区环境与工程研究所 |
通讯作者 | Sang, Yan-Fang |
作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China 2.Texas A&M Univ, Dept Biol & Agr Engn, College Stn, TX USA 3.Texas A&M Univ, Zachry Dept Civil Engn, College Stn, TX USA 4.Chinese Acad Sci, Key Lab Land Surface Proc & Climate Change Cold &, Lanzhou, Peoples R China |
推荐引用方式 GB/T 7714 | Sang, Yan-Fang,Singh, Vijay P.,Wen, Jun,et al. Gradation of complexity and predictability of hydrological processes[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2015,120(11):5334-5343. |
APA | Sang, Yan-Fang,Singh, Vijay P.,Wen, Jun,&Liu, Changming.(2015).Gradation of complexity and predictability of hydrological processes.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,120(11),5334-5343. |
MLA | Sang, Yan-Fang,et al."Gradation of complexity and predictability of hydrological processes".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 120.11(2015):5334-5343. |
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