GroMoPo Metadata for Ammer Catchment model

Authors:

GroMoPo Sacha Ruzzante

Owners:

gromopo_admin

Type:

Resource

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The size of this resource is 1.6 KB

Created:

Feb 08, 2023 at 3:17 a.m.

Last updated:

Feb 08, 2023 at 3:17 a.m.

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Abstract

In large mountainous catchments, shallow unconfined alluvial aquifers play an important role in conveying Subsurface runoff to the foreland. Their relatively small extent poses a serious problem for ground water flow models on the river basin scale. River basin scale models describing the entire water cycle are necessary in integrated water resources management and to study the impact of global climate change on ground water resources. Integrated regional-scale models must use a coarse, fixed discretization to keep computational demands low and to facilitate model Coupling. This can lead to discrepancies between model discretization and the geometrical properties of natural systems. Here. an approach to overcome this discrepancy is discussed using the example of the German-Austrian Upper Danube catchment, where a coarse ground water flow model was developed using MODFLOW. The method developed uses a modified concept from a hydrological catchment drainage analysis in order to adapt the aquifer geometry such that it respects the numerical requirements of the chosen discretization, that is, the width and the thickness of cells as well as gradients and connectivity of the catchment. In order to show the efficiency of the developed method, it was tested and compared to a finely discretized ground water model of the Ammer subcatchment. The results of the analysis prove the applicability of the new approach and contribute to the idea of using physically based ground water models in large catchments.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

Place/Area Name:

Germany

North Latitude

47.8884°

East Longitude

11.2359°

South Latitude

47.4734°

West Longitude

10.8929°

Streets Terrain Satelite

Spatial Extent

Content

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Additional Metadata

Name	Value
DOI	10.1111/j.1745-6584.2008.00456.x
Depth	approx. 500
Scale	101 - 1 000 kmÂ²
Layers	1 layer
Purpose	Scientific investigation (not related to applied problem)
GroMoPo_ID	159
IsVerified	True
Model Code	MODFLOW
Model Link	https://doi.org/10.1111/j.1745-6584.2008.00456.x
Model Time	1995-1997
Model Year	2008
Model Authors	Wolf, J; Barthel, R; Braun, J
Model Country	Germany
Data Available	Report/paper only
Developer Email	jenswwolf@web.de
Dominant Geology	Unconsolidated sediments
Developer Country	Germany
Publication Title	Modeling ground water flow in alluvial mountainous catchments on a watershed scale
Original Developer	No
Additional Information	Coarse and fine resolution models of the Ammer Subcatchment
Integration or Coupling
Evaluation or Calibration	Dynamic water levels
Geologic Data Availability

How to Cite

GroMoPo, S. Ruzzante (2023). GroMoPo Metadata for Ammer Catchment model, HydroShare, http://www.hydroshare.org/resource/2dc3765039f24879910b4d1deee6170d

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

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

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