In order to explore the change of 50 years’ rainfall trend and abrupt change in WeiHe Basin, we using the annual rainfall data of 21 important control stations in WeiHe basin from 1960 to 2012 to analyze the changes in the time rainfall and the change trend of the annual rainfall anomaly, and using Kendall - Mann method to test the trend of rainfall in WeiHe Basin. It shows that rainfall rate keeps decreasing during the last 50 years, and the change rate of upstream is generally greater than the midstream and downstream. For mutation years, it occurs in 1970s in downstream, in1970s and 1980s in midstream and in 1990s and after 2000 in upstream. It shows that the change of rainfall in different regions have different performance. From the tendency analysis, we can predict that the whole WeiHe basin will keep a decreasing trend of annual rainfall in the future.
| Published in | Earth Sciences (Volume 4, Issue 6) |
| DOI | 10.11648/j.earth.20150406.12 |
| Page(s) | 228-234 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2015. Published by Science Publishing Group |
WeiHe Basin, Tendency Analysis of Precipitation, Mann—Kendall, Abrupt Analysis
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APA Style
Li Zhi, Sun Dongyong. (2015). Trend and Abrupt Analysis of Rainfall Change During Last 50 Years in the WeiHe Basin. Earth Sciences, 4(6), 228-234. https://doi.org/10.11648/j.earth.20150406.12
ACS Style
Li Zhi; Sun Dongyong. Trend and Abrupt Analysis of Rainfall Change During Last 50 Years in the WeiHe Basin. Earth Sci. 2015, 4(6), 228-234. doi: 10.11648/j.earth.20150406.12
AMA Style
Li Zhi, Sun Dongyong. Trend and Abrupt Analysis of Rainfall Change During Last 50 Years in the WeiHe Basin. Earth Sci. 2015;4(6):228-234. doi: 10.11648/j.earth.20150406.12
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Download@article{10.11648/j.earth.20150406.12,
author = {Li Zhi and Sun Dongyong},
title = {Trend and Abrupt Analysis of Rainfall Change During Last 50 Years in the WeiHe Basin},
journal = {Earth Sciences},
volume = {4},
number = {6},
pages = {228-234},
doi = {10.11648/j.earth.20150406.12},
url = {https://doi.org/10.11648/j.earth.20150406.12},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20150406.12},
abstract = {In order to explore the change of 50 years’ rainfall trend and abrupt change in WeiHe Basin, we using the annual rainfall data of 21 important control stations in WeiHe basin from 1960 to 2012 to analyze the changes in the time rainfall and the change trend of the annual rainfall anomaly, and using Kendall - Mann method to test the trend of rainfall in WeiHe Basin. It shows that rainfall rate keeps decreasing during the last 50 years, and the change rate of upstream is generally greater than the midstream and downstream. For mutation years, it occurs in 1970s in downstream, in1970s and 1980s in midstream and in 1990s and after 2000 in upstream. It shows that the change of rainfall in different regions have different performance. From the tendency analysis, we can predict that the whole WeiHe basin will keep a decreasing trend of annual rainfall in the future.},
year = {2015}
}
TY - JOUR T1 - Trend and Abrupt Analysis of Rainfall Change During Last 50 Years in the WeiHe Basin AU - Li Zhi AU - Sun Dongyong Y1 - 2015/12/05 PY - 2015 N1 - https://doi.org/10.11648/j.earth.20150406.12 DO - 10.11648/j.earth.20150406.12 T2 - Earth Sciences JF - Earth Sciences JO - Earth Sciences SP - 228 EP - 234 PB - Science Publishing Group SN - 2328-5982 UR - https://doi.org/10.11648/j.earth.20150406.12 AB - In order to explore the change of 50 years’ rainfall trend and abrupt change in WeiHe Basin, we using the annual rainfall data of 21 important control stations in WeiHe basin from 1960 to 2012 to analyze the changes in the time rainfall and the change trend of the annual rainfall anomaly, and using Kendall - Mann method to test the trend of rainfall in WeiHe Basin. It shows that rainfall rate keeps decreasing during the last 50 years, and the change rate of upstream is generally greater than the midstream and downstream. For mutation years, it occurs in 1970s in downstream, in1970s and 1980s in midstream and in 1990s and after 2000 in upstream. It shows that the change of rainfall in different regions have different performance. From the tendency analysis, we can predict that the whole WeiHe basin will keep a decreasing trend of annual rainfall in the future. VL - 4 IS - 6 ER -
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