Next Article in Journal
Surrogate Models for Sub-Region Groundwater Management in the Beijing Plain, China
Previous Article in Journal
Application of Hydrological Model PRMS to Simulate Daily Rainfall Runoff in Zamask-Yingluoxia Subbasin of the Heihe River Basin
Article Menu
Issue 10 (October) cover image

Export Article

Open AccessArticle
Water 2017, 9(10), 770; https://doi.org/10.3390/w9100770

Sunshine Duration Variability in Haihe River Basin, China, during 1966–2015

1
College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China
2
Department of Water Resources, China Institute of Water Resources and Hydropower Research, Beijing 100038, China
*
Author to whom correspondence should be addressed.
Received: 17 July 2017 / Revised: 1 October 2017 / Accepted: 1 October 2017 / Published: 9 October 2017
Full-Text   |   PDF [5396 KB, uploaded 11 October 2017]   |  

Abstract

Sunshine can have a profound impact on the systematic change in climate elements, such as temperature and wind speed, and in turn affects many aspects of the human society. In recent years, there has been a substantial interest in the variation of sunshine duration due to the dramatic global climate change. Hence, there is a need to better understand the variation of sunshine duration in order to cope with climate change. This study aimed to analyze the variation of sunshine duration in Haihe River basin, China, and its relationship with temperature, wind speed and low-level cloudiness. The annual, seasonal and monthly changes of sunshine duration were analyzed based on the data collected from 33 meteorological stations over the Haihe River basin during 1966–2015. It is evident that the annual, seasonal and monthly sunshine duration shows a decreasing trend over time. In addition, the annual sunshine duration is lower with a higher climate tendency rate in the southern and eastern coastal regions than that in the northwestern regions. It is negatively correlated with temperature (r = −0.50) and low-level cloudiness (r = −0.29), but positively with wind speed (r = 0.61). Wind speed may be one of the important causes of the decrease of sunshine duration in the Haihe River basin during 1966–2015. These changes may have significant implications for the hydrological cycle in the area. View Full-Text
Keywords: sunshine duration; Haihe River basin; temperature; wind speed sunshine duration; Haihe River basin; temperature; wind speed
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

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.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Water EISSN 2073-4441 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top