Sunshine Duration Variability in Haihe River Basin, China, during 1966–2015
Abstract
:1. Introduction
2. Study Area and Methods
Study Area and Data
3. Results
3.1. Temporal Change of Sunshine Duration
3.1.1. Annual Sunshine Duration
3.1.2. Seasonal Sunshine Duration
3.1.3. Monthly Sunshine Duration
3.2. Spatial Change of Sunshine Duration
3.3. Relationship of Sunshine Duration with Temperature and Wind Speed
4. Discussion
5. Conclusions
Acknowledgments
Author Contributions
Conflicts of Interest
References
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Month | Jan. | Feb. | Mar. | Apr. | May | Jun. |
Sunshine duration | 183.99 | 182.09 | 224.74 | 241.77 | 270.30 | 246.50 |
Month | Jul. | Aug. | Sep. | Oct. | Nov. | Dec. |
Sunshine duration | 216.69 | 219.20 | 217.52 | 213.62 | 180.67 | 173.39 |
Period | Annual | Winter | Spring | Summer | Autumn | |
---|---|---|---|---|---|---|
Temperature | 1966–2015 | −0.50 b | −0.31 a | −0.04 | 0.004 | −0.37 a |
Wind speed | 1966–2015 | 0.61 b | 0.61 b | 0.38 b | 0.51 b | 0.61 b |
Low-level cloudiness | 1966–2010 | −0.29 | −0.81 b | −0.17 | −0.72 b | −0.60 b |
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Ren, J.; Lei, X.; Zhang, Y.; Wang, M.; Xiang, L. Sunshine Duration Variability in Haihe River Basin, China, during 1966–2015. Water 2017, 9, 770. https://doi.org/10.3390/w9100770
Ren J, Lei X, Zhang Y, Wang M, Xiang L. Sunshine Duration Variability in Haihe River Basin, China, during 1966–2015. Water. 2017; 9(10):770. https://doi.org/10.3390/w9100770
Chicago/Turabian StyleRen, Jing, Xiaohui Lei, Yuhu Zhang, Mingna Wang, and Liu Xiang. 2017. "Sunshine Duration Variability in Haihe River Basin, China, during 1966–2015" Water 9, no. 10: 770. https://doi.org/10.3390/w9100770