基于GRACE时变重力场模型研究印度河-恒河流域水储量变化

温志强; 黄征凯

doi:10.13442/j.gnss.1008-9268.2020.05.018

基于GRACE时变重力场模型研究印度河-恒河流域水储量变化

doi: 10.13442/j.gnss.1008-9268.2020.05.018

温志强¹,
黄征凯^1,2,

1.
华东交通大学土木建筑学院,江西南昌 330013
2.
东华理工大学江西省数字国土重点实验室,江西南昌 330013

详细信息

作者简介:
温志强 (1997—),男,研究方向为卫星重力的水文学应用.

通信作者:
黄征凯 E-mail:hzkai202@163.com

计量
- 文章访问数: 472
- HTML全文浏览量: 107
- PDF下载量: 25
- 被引次数: 0
出版历程
- 刊出日期: 2021-02-24

A research on water storage changes in the Indus-Ganges river basin based on GRACE time-varying gravity field

WEN Zhiqiang¹,
HUANG Zhengkai^{1,2
,}

1.
School of Civil Engineering and Architecture,East China Jiaotong University,Nanchang 330013 China
2.
Jiangxi Key Laboratory of Digital Land,East China University of Technology,Nanchang 330013,China

摘要

摘要: 印度河和恒河是亚洲的重要河流,流经区域也是印度次大陆人口最集中的地区,研究该区域水储量变化对于保障当地生态环境和经济发展有重要意义.本文利用GRACE_RL05时变重力场模型反演2002-2016年的印度河-恒河流域内陆地水储量变化,并结合GLDAS水文模型获取区域地下水储量变化.研究发现:2002-2016年印度河和恒河流域陆地水储量和地下水储量均呈下降趋势,其中两流域的地下水下降的速率(分别为-7.2 mm／a和-4.7 mm／a)超过整体水储量的下降趋势;综合水文模型数据分析表明:该区域水储量下降的原因是蒸发量上升和降水持续减少的背景下,农业灌溉过程中过度抽采地下水导致的.
- 重力恢复和气候实验卫星 /
- 全球陆面数据同化系统 /
- 印度河-恒河流域 /
- 陆地水储量 /
- 地下水储量
Abstract: The Indus and Ganges rivers are important rivers in Asia,and the two basins the two rivers passed are also the most populous areas in Indian subcontinent.It is of great significance to study the water storage changes in this region to ensure the local ecological environment and economic development.In this paper, the GRACE_RL05 Time-varying gravity field model was used to calculate the change of total water storages of Indus-Ganges River Basin from 2002s to 2016s,and the GLDAS hydrological model was used to calculate the changes of groundwater storages.The study found that,the Total Water Storages (TWS) and Groundwater Water Storages (GWS) of the Indus and Ganges showed a downward trend from 2002s to 2016,and the rate of groundwater decline (respectively-7.2 mm／year and-4.7 mm／year) in both basins exceeded the TWS decline rate.Comprehensive hydrological model data analysis shows that the reason for the decline in water reserves in this area is caused by excessive pumping pipelines in excessive agricultural irrigation against the background of rising evaporation and continuous reduction of precipitation.
- gravity recovery and climate experimental satellite /
- global land data assimilation system /
- Indus-Ganges basin /
- total water storage /
- groundwater storages

HTML全文

参考文献(9)

[1]	廖梦思.基于GRACE和GLDAS数据反演近十年洞庭湖流域水储量变化［D］.长沙:湖南师范大学,2015.
[2]	罗志才,李琼,钟波.利用GRACE时变重力场反演黑河流域水储量变化［J］.测绘学报.2012,41(5):676-681.
[3]	CHEN J L,LI J,ZHANG Z Z, et al.Long-term groundwater variations in northwest india from satellite gravity measurements［J］.Global and planetary Change,2014(116):130-138.DOI: 10.16／j.gloplac-ha.2014.02.007.
[4]	VISSA N K,ANANDH P C,BEHERA M M,et al.ENSO induced groundwater changes in India derived from GRACE and GLDAS［J］.Journal of earth system science,2019,128(5):115-128.DOI: 10.1007／s120 40-019-1148-z.
[5]	TIWARI V M,WAHR J,SWENSON J.Dwindling groundwater resources in northern india,from satellite gravity observations［J］.Geophysical research letters,2009,36(18):184-201.DOI:10.1029／2009 GL039401.
[6]	钟敏,段建宾,许厚泽,等.利用卫星重力观测研究近5年中国陆地水储量中长空间尺度的变化趋势［J］.科学通报,2009,54(9):1290-1294.
[7]	XIANG L W,WANG H S,STEFFEN H,et al.Groundwater storage changes in the Tibetan Plateau and adjacent aeras revealed from GRACE satellite gravity data［J］.Earth and planetary science letters,2016(449):228-239.DOI: 10.1016／j.epsl.2016.06.002.
[8]	IQBAL N,HOSSAIN F,LEE H,et al.Satellite gravimetric estimation of groundwater storage variations over Indus basin in Pakistan［J］.IEEE journal of eleted topic in applied earth observations and remote sensing,2016,9(8):3524-3534.DOI: 10.1109/JSTARS.2016.2574378.
[9]	SHAMSUDDUHA M,PANDA D K.Spatio-temporal changes in terrestrial water storage in the Himalayan river basins and risks to water security in the region: A review［C］//International Journal of Disaster Risk Reduction,2019(35):8.DOI: 10.1016／j.ijdrr.2019.101068.