Description: These coastal areas are periodically inundated or subject to inundation by Great Lakes waters under different conditions of standing water levels and storminess. The layers provided here show areas subject to inundation under average standing water levels, high standing water levels, and high surge water levels (high standing water levels during a coastal storm resulting in storm surge inundation).
Name: Hydrologically connected Great Lakes coastal wetlands
Display Field:
Type: Group Layer
Geometry Type: null
Description: These layers combine areas that are periodically inundated by Great Lakes waters under different conditions of standing water level and storm surge with the locations of known wetlands, showing by definition the locations of hydrologically connected Great Lakes coastal wetlands.
Description: Locations of known coastal wetlands within land areas subject to inundation by Great Lakes water under average standing water level conditions.
Service Item Id: 1410628c39a2402d8218957b0371fd15
Copyright Text: Mary Ellen Miller: memiller@mtu.edu, Laura Bourgeau-Chavez, Michael Battaglia, Michigan Tech Research Institute Guy Meadows Michigan Tech Great Lakes Research Center
Description: Locations of known coastal wetlands within land areas subject to inundation by Great Lakes water under average standing water level conditions.
Service Item Id: 1410628c39a2402d8218957b0371fd15
Copyright Text: Mary Ellen Miller: memiller@mtu.edu, Laura Bourgeau-Chavez, Michael Battaglia, Colin Brooks, Amanda Grimm Michigan Tech Research Institute
Guy Meadows
Michigan Tech Great Lakes Research Center
Description: Locations of known coastal wetlands within land areas subject to inundation by storm surge and standing water under high standing water level conditions during a storm event.
Service Item Id: 1410628c39a2402d8218957b0371fd15
Copyright Text: Mary Ellen Miller: memiller@mtu.edu, Laura Bourgeau-Chavez, Michael Battaglia, Colin Brooks, Amanda Grimm Michigan Tech Research Institute
Guy Meadows
Michigan Tech Great Lakes Research Center
Description: Locations of known wetlands within all hydrologically connected coastal shoreland areas (up to and including lands inundated by storm surge during high standing water levels), organized by wetland type.
Emergent – Areas dominated by hydrophytes (sedges, rushes, grasses, etc.) where the water table is at or near the earth’s surface. This class includes invasives such as Phragmites australis.
Aquatic bed - Areas dominated by rooted (lily pad, milfoil, etc.) or floating (lemna, coontail, etc.) vascular plants that exist at or just below the surface of the water. These areas typically remain inundated most of the time with <2 m water depth. Shrub wetland – Areas dominated by woody vegetation <6 m in height (buttonbush, willow, dogwood, etc.) where soil is saturated at least part of the year. Forested wetland – Areas dominated by woody vegetation >6 m in height (ash, elm, red maple, etc.) where soil is saturated at least part of the year.
Service Item Id: 1410628c39a2402d8218957b0371fd15
Copyright Text: Mary Ellen Miller: memiller@mtu.edu, Laura Bourgeau-Chavez, Michael Battaglia, Colin Brooks, Amanda Grimm Michigan Tech Research Institute Guy Meadows Michigan Tech Great Lakes Research Center
Description: Near-shore coastal zones subject to dynamic physical processes can be conceptualized in different ways. These layers present two approaches to conceptualizing and mapping Great Lakes ZDCIs, including one based on physical conditions evident on the ground and the second based on water level elevations.
Description: Land areas subject to highly dynamic coastal processes in the past based on the evidence of the presence of Great Lakes waters in the relatively recent past, characterized primarily by the absence of trees and other long-lived woody vegetation.
Description: Land areas potentially subject to highly dynamic coastal processes in the future based on the potential elevation of Great Lakes standing water during high water level / storm surge conditions, layered upon existing shoreland conditions using best available digital elevation models and data from Great Lakes buoys.