Hello Mr. Gilbreath,
The full metadata description for “Contours_2ft" is available here: https://www1.maine.gov/megis/catalog/metadata/contours_2ft.htm
From the metadata in WKT the datum and projection information is:
PROJCS["NAD_1983_UTM_Zone_19N",GEOGCS["GCS_North_American_1983",DATUM["D_North_American_1983",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Transverse_Mercator"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",-69.0],PARAMETER["Scale_Factor",0.9996],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",26919]]
Thank you for the inquiry.
Todd Metzler
State of Maine
Office of Information Technology GIS
From: Maine GeoNews [mailto:[log in to unmask]] On Behalf Of Aaron Gilbreath
Sent: 2017-09-29 15:55
To: [log in to unmask]
Subject: sea-level in 2' contour shapefiles?
Hello Everyone,
I was wondering if anyone could tell me how sea-level is zeroed in the 2' contour layers on the Maine GIS site? Is it from low tide, high tide, or mean tide level? Thanks in advance, and I apologize in advance if this answer is obvious. I didn't see it in the metadata.
Thanks,
Aaron
Aaron Gilbreath
148 East Main St
Yarmouth, ME 04096
(207) 841-4805
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