Spatial and Temporal Evolution of Precipitation and Runoff in Mississippi River Basin in Recent 40 Years

Lanshu Jing, Lanshu Jing, Lanshu Jing, Hongjing Yu, Hongjing Yu, Baisha Weng, Baisha Weng, Qinghua Luan, Shanjun Zhang

2021

Abstract

As the fourth largest river in the world, the spatial and temporal evolution characteristics of precipitation and runoff of the Mississippi River can provide basic support for the global water cycle. Different from the analysis of single factor characteristics, this paper comprehensively analysed the spatial distribution characteristics of annual precipitation, runoff into the sea, runoff of each typical station and runoff coefficient in the Mississippi River Basin. Long-series precipitation and runoff data were analysed by statistical methods from three aspects of trend, mutation and periodicity. The results indicated that the annual precipitation increased from northwest to Southeast, with great spatial differences. The annual precipitation trend increased from the eastern and western edge areas to the middle. The annual precipitation mutation time generally delayed from high and low longitude areas to middle longitude areas. The annual precipitation periodicity was characterized by a longer period in the eastern and western edge areas and a shorter period in the central area. The runoff of the Missouri River, Kansas river and Illinois River showed a decreasing trend, which was inconsistent with the trend of precipitation. Overall, the spatial distribution of runoff variation amplitude showed the characteristics of increasing from the east and west to the middle. The amount of discharge into the sea generally showed a decreasing trend. From 1970 to 2013, the sudden change fluctuation was large, the main period was 5a and the secondary period was 10a. The runoff coefficient increased from the west to the East. The Ohio basin was severely affected by human activities. This study can provide a reference for the study of large-scale watershed water cycle and even global water cycle.

Paper Citation

in Harvard Style

Jing L., Yu H., Weng B., Luan Q. and Zhang S. (2021). Spatial and Temporal Evolution of Precipitation and Runoff in Mississippi River Basin in Recent 40 Years. In Proceedings of the 7th International Conference on Water Resource and Environment - Volume 1: WRE, ISBN 978-989-758-560-9, pages 58-64

in Bibtex Style

@conference{wre21,
author={Lanshu Jing and Hongjing Yu and Baisha Weng and Qinghua Luan and Shanjun Zhang},
title={Spatial and Temporal Evolution of Precipitation and Runoff in Mississippi River Basin in Recent 40 Years},
booktitle={Proceedings of the 7th International Conference on Water Resource and Environment - Volume 1: WRE,},
year={2021},
pages={58-64},
publisher={SciTePress},
organization={INSTICC},
doi={},
isbn={978-989-758-560-9},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 7th International Conference on Water Resource and Environment - Volume 1: WRE,
TI - Spatial and Temporal Evolution of Precipitation and Runoff in Mississippi River Basin in Recent 40 Years
SN - 978-989-758-560-9
AU - Jing L.
AU - Yu H.
AU - Weng B.
AU - Luan Q.
AU - Zhang S.
PY - 2021
SP - 58
EP - 64
DO -