Southwest New Brunswick Basemaps Information

Basemap Series

The data collected by several platforms is presented in the form of basemaps, with each map covering 2' of latitude and 2' of longitude. Data are gridded at a resolution of 1 metre. For perusal via the web portal, images are created in which depths are colour coded (based on the range of depths in the mapsheets) and the terrain is sun-illuminated. Grid files are available for download in ESRI grid format (.flt and .hdr files for each mapsheet, downloaded as a zipped .tgz archive file).

Map Projection

The New Brunswick Double Stereographic projection is used for the Basemap series of mapsheets.

Datums

Horizontal datum: NAD83
Vertical datum: Vertical reduction of soundings is poorly documented (and often in error) as many of the source data were compiled by students. In the future, application of tides from the WebTide model may be considered.

For more information, please contact Ian Church.

Last modified: January 9th, 2007, by J. Beaudoin 45_00_N_66_50_W 45_00_N_67_00_W 45_10_N_67_00_W 45_10_N_67_10_W 44_50_N_67_00_W 45_10_N_66_30_W 45_10_N_66_40_W 45_10_N_66_50_W 44_50_N_66_50_W 45_00_N_67_10_W 45_10_N_66_10_W 45_10_N_66_20_W 45_20_N_66_10_W