GroMoPo Metadata for Redland Peatland flowpath model

Authors:

GroMoPo Kyle Compare

Owners:

gromopo_admin

Type:

Resource

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The size of this resource is 1.6 KB

Created:

Feb 08, 2023 at 8:33 p.m.

Last updated:

Feb 08, 2023 at 8:34 p.m.

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Abstract

Transient numerical simulations of the Glacial Lake Agassiz Peatland near the Red Lakes in Northern Minnesota were constructed to evaluate observed reversals in vertical ground-water flow. Seasonal weather changes were introduced to a ground-water flow model by varying evapotranspiration and recharge over time. Vertical hydraulic reversals, driven by changes in recharge and evapotranspiration were produced in the simulated peat layer. These simulations indicate that the high specific storage associated with the peat is an important control on hydraulic reversals. Seasonally driven vertical flow is on the order of centimeters in the deep peat, suggesting that seasonal vertical advective fluxes are not significant and that ground-water flow into the deep peat likely occurs on decadal or longer time scales. Particles tracked within the ground-water flow model oscillate over time, suggesting that seasonal flow reversals will enhance vertical mixing in the peat column. The amplitude of flow path oscillations increased with increasing peat storativity, with amplitudes of about 5 cm occurring when peat specific storativity was set to about 0.05 m(-1). (c) 2005 Elsevier 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

48.5157°

East Longitude

-94.4664°

South Latitude

48.1867°

West Longitude

-94.8844°

Streets Terrain Satelite

Spatial Extent

Content

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Additional Metadata

Name	Value
DOI	10.1016/j.jhydrol.2005.05.005
Depth
Scale	101 - 1 000 kmÂ²
Layers	10
Purpose	Scientific investigation (not related to applied problem)
GroMoPo_ID	417
IsVerified	True
Model Code	MODFLOW
Model Link	https://doi.org/10.1016/j.jhydrol.2005.05.005
Model Time
Model Year	2006
Model Authors	Reeve, AS; Evensen, R; Glaser, PH; Siegel, DI; Rosenberry, D
Model Country	United States
Data Available	Report/paper only
Developer Email	asreeve@maine.edu
Dominant Geology	Unconsolidated sediments
Developer Country	USA
Publication Title	Flow path oscillations in transient ground-water simulations of large peatland systems
Original Developer	No
Additional Information	MODFLOW model of wetlands in Minnesota, USA to better understand periodic reversals of hydrologic gradient.
Integration or Coupling	None of the above
Evaluation or Calibration	Static water levels
Geologic Data Availability	No

How to Cite

GroMoPo, K. Compare (2023). GroMoPo Metadata for Redland Peatland flowpath model, HydroShare, http://www.hydroshare.org/resource/2d3ee06d4bc24520980acf45c3a615ea

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

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

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