You will use N.T.S. map 21 H/10, which is titled the Alma map sheet, and shows the
You will use N.T.S. map 21 H/10, which is titled the “Alma” map sheet, and shows the topography and other landscape features for the Chignecto Bay area of the upper Bay of Fundy, New Brunswick and Nova Scotia. The map is at a scale of 1:50,000. A detailed legend on the side of the map sheet identifies the various symbols used on the map. Note that all spot heights and contour values on the map sheet are in metres. The locations of features in this exercise are specified using the Universal Transverse Mercator (UTM) Military Grid. This is a rectangular or planar coordinate system printed as a light blue overlay on the map sheet.
1. Use the map legend to identify the symbol or feature located at the following map reference locations:
2. How much tidal flat is uncovered at low tide on New Horton Flat, from Mary’s Cove to the water’s edge (700635)?
3. Calculate the distance and the elevation change between Beaver Dam Lake (703399) following downstream along Sand River, to the estuary on the coast. Which direction does the Sand River flow?
4. Use these values to calculate the gradient (i.e., slope = rise/run) of the river channel between these two points in m/km and degrees. Note: To calculate slope in degrees you have to first standardize the units that you will be using and then divide the rise over the run. The resulting number is the tangent of the slope. To find the slope in degrees you will have to find the inverse tangent of your number. Think SOH CAH TOA! (tanθ = opposite/adjacent)