GroMoPo Metadata for Ejina Basin model

Authors:

GroMoPo Sacha Ruzzante

Owners:

gromopo_admin

Type:

Resource

Storage:

The size of this resource is 1.8 KB

Created:

Feb 08, 2023 at 9:51 p.m.

Last updated:

Feb 08, 2023 at 9:52 p.m.

Citation:

See how to cite this resource

Sharing Status:	Public
Views:	1491
Downloads:	218
+1 Votes:	Be the first one to this.
Comments:	No comments (yet)

Abstract

Surface water-groundwater interactions in arid zones are characterized by water exchange processes in a complex system comprising intermittent streams/terminal lakes, shallow aquifers, riparian zone evapotranspiration, and groundwater withdrawal. Notable challenges arise when simulating such hydrological systems; for example, field observations are scarce, and hydrogeological parameters exhibit considerable spatial heterogeneity. To reduce the simulation uncertainties, in addition to groundwater head and river discharge measurements, we adopted remote sensing-based evapotranspiration data and lake area dynamics as known conditions to calibrate the model. We chose the Ejina Basin, located in the lower reaches of the Heihe River Basin in arid northwest China, as the study area to validate our modelling approach. The hydrological system of this basin is characterized by intensive, spatiotemporally variable surface water-groundwater interactions. The areas of the terminal lakes into which all river runoff flows vary significantly depending on the ratio between river runoff and lake evaporation. Simulation results with a monthly time step from 2000 to 2017 indicate that river leakage accounted for approximately 61% of the total river runoff. Our study shows that for areas where surface water and groundwater observations are sparse, combining remote sensing product data of surface water areas and evapotranspiration can effectively reduce the uncertainty in coupled surface water and groundwater simulations.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

Place/Area Name:

China

North Latitude

42.5000°

East Longitude

101.7000°

South Latitude

41.0000°

West Longitude

100.0000°

Streets Terrain Satelite

Spatial Extent

Content

Learn more about the BagIt download

Select a file to see file type metadata.

Additional Metadata

Name	Value
DOI	10.3390/rs14071657
Depth	500
Scale	10 001 - 100 000 kmÂ²
Layers	3
Purpose	Groundwater resources
GroMoPo_ID	464
IsVerified	True
Model Code	MODFLOW
Model Link	https://doi.org/10.3390/rs14071657
Model Time	2000-2017
Model Year	2022
Model Authors	Vasilevskiy, P; Wang, P; Pozdniakov, S; Wang, TY; Zhang, YC; Zhang, XJ; Yu, JJ
Model Country	China
Data Available	Report/paper only
Developer Email	valenciacf@mail.ru; wangping@igsnrr.ac.cn; sppozd@mail.ru; wangtianye@zzu.edu.cn; zhangych@lreis.ac.cn; zhangxj@mail.sustech.edu.cn; yujj@igsnrr.ac.cn
Dominant Geology	Unconsolidated sediments
Developer Country	Russia; Peoples R China
Publication Title	Simulating River/Lake-Groundwater Exchanges in Arid River Basins: An Improvement Constrained by Lake Surface Area Dynamics and Evapotranspiration
Original Developer	No
Additional Information
Integration or Coupling	Surface water
Evaluation or Calibration	Dynamic water levels;River runoff; lake area
Geologic Data Availability	No

How to Cite

GroMoPo, S. Ruzzante (2023). GroMoPo Metadata for Ejina Basin model, HydroShare, http://www.hydroshare.org/resource/0c89106904384a7d963af2567fa0d77e

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/

Comments

There are currently no comments

	Name:
	Organization:
	Email:
	Address:
	Phone:
	Homepage:
	Author Identifiers: