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GL_CoastalProcesses_LittoralBarriers
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0.003
Projected
GCS_North_American_1983
Linear Unit: Meter (1.000000)
NAD_1983_Canada_Atlas_Lambert
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North American Profile of ISO19115 2003
20260427
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ItemDescription
Esri ArcGIS 13.5.5.57366
Great Lakes Nearshore Waters: Littoral Barriers
0.000000
0.000000
1
-82.936831
-77.877631
44.719414
41.292118
Littoral barriers along the Canadian Great Lakes that impede sediment transport along the coast; data is part of the Overall Assessment of the State of Nearshore Waters.
<DIV STYLE="text-align:Left;font-size:12pt"><DIV><DIV><P><SPAN>This data was derived as part of the Overall Assessment of the State of Nearshore Waters. The supply, transport and deposition of sediment are natural processes that form and maintain coastal features like wetlands and beaches. Artificial shore perpendicular structures (littoral barriers) can disrupt natural movements of sediment and affect the integrity of ecosystems. Littoral barriers is assessed by counting the number of littoral barriers (>100 m in length) in a Regional Unit. </SPAN><SPAN>Barrier is represented by the line centroid, for mapping purposes.</SPAN></P><P><SPAN>Littoral barriers were digitized using best available imagery, at a scale of approximately 1:2,000.</SPAN><SPAN> Point represents centroid of littoral barrier, for mapping purposes.</SPAN></P><P><SPAN>A littoral barrier is a shore perpendicular structure that, for purposes of the Overall Assessment of the State of Nearshore Waters, is at least 100 meters in length. </SPAN><SPAN /><SPAN>In Regional Units where littoral drift is not a dominant coastal process, the measure not apply and is tagged as "N/A'.</SPAN><SPAN /></P><P><SPAN>Low Stress: 0 littoral barriers</SPAN><SPAN>; </SPAN><SPAN>Moderate Stress: 1 littoral barrier</SPAN><SPAN>; </SPAN><SPAN>High Stress: >1 littoral barrier</SPAN></P></DIV></DIV></DIV>
Environment and Climate Change Canada - Strategic Policy Branch - RDGO
Great Lakes
Lake Superior
Lake Huron
Lake Ontario
Lake Erie
Nearshore Framework
water quality
ecosystem health
cumulative stress
Coastal Processes
Littoral Barriers
File Geodatabase Feature Class
0.003
dataset
EPSG
7.1(10.0.0)
0
Simple
FALSE
0
TRUE
TRUE
GL_CoastalProcesses_LittoralBarriers
Feature Class
0
OBJECTID
OBJECTID
OID
4
0
0
Internal feature number.
Esri
Sequential unique whole numbers that are automatically generated.
Shape
Shape
Geometry
0
0
0
Feature geometry.
Esri
Coordinates defining the features.
RegUnitID
Regional Unit ID
String
254
0
0
LengthM
Length (m)
Double
8
0
0
NearshoreAssessment
Nearshore Assessment
String
255
0
0
AssessmentYear
Assessment Year
String
4
0
0
AssessmentCategory
Assessment Category
String
50
0
0
20260427