GroMoPo Metadata for Glacial Lake Agassiz Peatlands MODFLOW model

Authors:

GroMoPo Sacha Ruzzante

Owners:

gromopo_admin

Type:

Resource

Storage:

The size of this resource is 1.5 KB

Created:

Feb 08, 2023 at 3 p.m.

Last updated:

Feb 08, 2023 at 3:01 p.m.

Citation:

See how to cite this resource

Sharing Status:	Public
Views:	774
Downloads:	220
+1 Votes:	Be the first one to this.
Comments:	No comments (yet)

Abstract

Three-dimensional ground-water modeling experiments were done to test the hypothesis that regional ground-water flow is an important component of the water budget in the Glacial Lake Agassiz Peatlands of northern Minnesota. Previous data collected from the Glacial Lake Agassiz Peatlands suggest that regional ground-water flow discharges to these peatlands, maintaining saturation, controlling the peat pore-water chemistry, and driving ecological change. To test this hypothesis, steady-state MODFLOW models were constructed that encompassed an area of 10,160 km(2). Data used in this modeling project included surface-water and water-table elevations measured across the study area, digital elevation data, and well logs from scientific test wells and domestic water wells drilled in the study area. Numerical simulations indicate that the Itasca Moraine, located to the south of the peatland, acts as a recharge area for regional ground-water flow. Ground water recharged at the Itasca Moraine did not discharge to the Red Lake Peatlands, but rather was intercepted by the Red Lakes or adjacent rivers. Simulations suggest that ground-water flow within the peatlands consists of local-flow systems with streamlines that are less than 10 km long and that ground water from distant recharge areas does not play a prominent role in the hydrology of these peatlands. Ground-water flow reversals previously observed in the Red Lake Peatlands are either the result of interactions between local and intermediate-scale flow systems or the transient release of water stored in glacial sediments when the watertable is lowered. (C) 2001 Elsevier Science B.V. All rights reserved.

Subject Keywords

Coverage

Spatial

Coordinate System/Geographic Projection:

WGS 84 EPSG:4326

Coordinate Units:

Decimal degrees

Place/Area Name:

United States

North Latitude

48.6490°

East Longitude

-93.8240°

South Latitude

47.6960°

West Longitude

-95.2370°

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	10.1016/S0022-1694(00)00402-9
Depth
Scale	10 001 - 100 000 kmÂ²
Layers	4
Purpose	Groundwater resources
GroMoPo_ID	292
IsVerified	True
Model Code	MODFLOW
Model Link	https://doi.org/10.1016/S0022-1694(00)00402-9
Model Time	SS
Model Year	2001
Model Authors	Reeve, AS; Warzocha, J; Glaser, PH; Siegel, DI
Model Country	United States
Data Available	Report/paper only
Developer Email	asreeve@maine.maine.edu
Dominant Geology	Unconsolidated sediments
Developer Country	USA
Publication Title	Regional ground-water flow modeling of the Glacial Lake Agassiz Peatlands, Minnesota
Original Developer	No
Additional Information
Integration or Coupling	None of the above
Evaluation or Calibration	Static water levels
Geologic Data Availability	No

How to Cite

GroMoPo, S. Ruzzante (2023). GroMoPo Metadata for Glacial Lake Agassiz Peatlands MODFLOW model, HydroShare, http://www.hydroshare.org/resource/f0636facdc954ea38ed4cfe605aa3c84

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: