Analysis of temporal and spatial characteristics about surface actual Evapotranspiration in Haihe river basin based on MODIS

2016 ◽  
Author(s):  
Xinling Wu ◽  
Dan Meng
Keyword(s):  
River Basin ◽  
Actual Evapotranspiration ◽  
Haihe River Basin ◽  
Haihe River ◽  
Spatial Characteristics ◽  
Temporal And Spatial ◽  
Temporal And Spatial Characteristics

Spatio-temporal variation of actual evapotranspiration in the Haihe River Basin of the past 50 years

2013 ◽  
Vol 304 ◽  
pp. 133-141 ◽  
Author(s):  
Xiucang Li ◽  
Marco Gemmer ◽  
Jianqing Zhai ◽  
Xuefeng Liu ◽  
Buda Su ◽  
...  
Keyword(s):  
Temporal Variation ◽  
River Basin ◽  
Actual Evapotranspiration ◽  
Haihe River Basin ◽  
Haihe River ◽  
The Past ◽  
Spatio Temporal ◽  
The Haihe River Basin

Estimation of environmental flow requirements for the river ecosystem in the Haihe River Basin, China

2013 ◽  
Vol 67 (4) ◽  
pp. 699-707 ◽  
Author(s):  
Tao Yang ◽  
Jingling Liu ◽  
Qiuying Chen ◽  
Jing Zhang ◽  
Yi Yang
Keyword(s):  
Resource Allocation ◽  
River Basin ◽  
Environmental Flow ◽  
Haihe River Basin ◽  
River Ecosystem ◽  
Dry Period ◽  
Haihe River ◽  
Functional Regionalization ◽  
Temporal And Spatial ◽  
The Haihe River Basin

The temporal and spatial environmental flow requirements (EFRs) for the river ecosystem of the Haihe River Basin were analyzed based mainly on the eco-functional regionalization of available water resources. The annual EFRs for the river ecosystem of the Haihe River Basin were 47.71 × 108 m3, which accounted for 18% of the average annual flow (263.9 × 108 m3). The EFRs for river reaches, wetlands, and estuaries were 22.67, 15.32 and 9.72 × 108 m3, respectively. Moreover, the EFRs for the river ecosystem during the wet (June to October), normal (April, May, November), and dry (December to March) periods were 29.99, 9.51 and 8.21 × 108 m3, respectively. Thus, toward a more integrated water resource allocation in the Haihe River Basin, the primary effort should focus on meeting the EFRs for river systems located in protected areas during the dry period.

scholarly journals Temporal and Spatial Variation Characteristics of Precipitation in the Haihe River Basin under the Influence of Climate Change

Water ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1664
Author(s):  
Yuhang Han ◽  
Bin Liu ◽  
Dan Xu ◽  
Chaoguo Yuan ◽  
Yanan Xu ◽  
...  
Keyword(s):  
Climate Change ◽  
River Basin ◽  
Haihe River Basin ◽  
Haihe River ◽  
Temperature And Precipitation ◽  
Increasing Trend ◽  
Temporal And Spatial ◽  
The Haihe River Basin ◽  
Precipitation Changes ◽  
Spearman’S Correlation

The impact of global climate change on the temporal and spatial variations of precipitation is significant. In this study, daily temperature and precipitation data from 258 meteorological stations in the Haihe River Basin, for the period 1960–2020, were used to determine the trend and significance of temperature and precipitation changes at interannual and interseasonal scales. The Mann–Kendall test and Spearman’s correlation analysis were employed, and significant change trends and correlations were determined. At more than 90% of the selected stations, the results showed a significant increase in temperature, at both interannual and interseasonal scales, and the increasing trend was more significant in spring than in other seasons. Precipitation predominantly showed a decreasing trend at an interannual scale; however, the change trend was not significant. In terms of the interseasonal scale, the precipitation changes in spring and autumn showed an overall increasing trend, those in summer showed a 1:1 distribution ratio of increasing and decreasing trends, and those in winter showed an overall decreasing trend. Furthermore, the Spearman’s correlation analysis showed a negative correlation between temperature and precipitation in the entire Haihe River Basin, at both interannual and interseasonal scales; however, most of the correlations were weak.

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