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Instructor: Tim McKee Kimberley GSAR Maps. Objectives Types of maps used in SAR Identify maps by name and sheet # Using map scales Grid systems – Geographic.

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Presentation on theme: "Instructor: Tim McKee Kimberley GSAR Maps. Objectives Types of maps used in SAR Identify maps by name and sheet # Using map scales Grid systems – Geographic."— Presentation transcript:

1 Instructor: Tim McKee Kimberley GSAR Maps

2 Objectives Types of maps used in SAR Identify maps by name and sheet # Using map scales Grid systems – Geographic Coordinate System – Lat/Long – UTM (Universal Transverse Mercator System) Grid Coordinates Map legends Identify map features Interpret contour lines Map handling

3 Map Types Topographic – most commonly used by KSAR TRIM Maps Search Status Map Orthophotos Air photos Tourist/trail maps Backroads map book Forestry maps

4 Topographic Maps Scales of 1:250 000 and 1:50 000 Most often used by KSAR Produced by Natural Resources Canada conforming to National Topographic System – NTS Identified by unique map names and numbers Wealth of information

5 Map Name

6 Map Number

7 Map Scales Scale refers to the relationship between distance on a map and the corresponding distance on the ground 1:50 000 – 1cm on the map equals 50 000cms on the ground 50 000cm = 500m = 0.5km UTM Grid Lines spaced 2cm = 1km

8 UTM Grid More commonly used by SAR groups and recreational map users Uses the crossing of a north-south grid line and an east-west grid line to describe a location Easting is always given first and the northing coordinate second In the door (Easting) and up the stairs (Northing) Specify NAD27 or NAD83 when giving coordinates

9 NAD27 and NAD83 Grid Coordinates can differ by several hundred meters

10 UTM Coordinates The coordinates for this knoll are 375136 St. Mary’s Lake or Easting 11U 537500 Northing 5513600

11 Latitude and Longitude Used by pilots and aircraft personnel Measured in degrees, minutes and seconds 116° 55’ 30” N – one hundred sixteen degrees, 55 minutes and 30 seconds North 60 seconds = 1 minute 60 minutes = 1 degree Latitude given first, then longitude Longitude decreases West to East Estimate seconds to the nearest 5” or 1/12 th of a minute

12 Lat/Long Coordinates The coordinates for this knoll are 49° 46’ 30” N 116° 28’ 45” W

13 Topo Map Colors Black – buildings, railways, power lines, co-ordinates, precise elevations, border information Red – paved roads, highway #’s,urban developments Orange – unpaved roads, unclassified roads and streets Brown – contour lines, contour elevations, spot elevations, sand Blue – water, ice, UTM grid info Grey – back of map legend Green – wooded areas (platoon of troops)

14 Map Symbols

15 Contour Lines Connect points of equal elevation Contour intervals 25m or 100ft Gentle slope: wide spacing (picture 5) Steep slope: lines are close together (picture 4) Peak: circle (picture 1) Valleys: V points to a higher elevation Ridges: V points to a lower elevation Direction of flow in rivers: V always points upstream

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18 Map Handling Handle maps carefully! Use map cases in the field or photocopies Keep dry Fold properly Leave folded when possible

19 A.On a map, points A and B are separated by 4.0 cm. Points C and D are separated by 11.2 cm. What is the actual distance in km between these points for the map scales given below? ScaleA - BC - D 1 : 25 000 ____________________________________ 1 : 50 000 ____________________________________ 1 : 125 000 ____________________________________ B.Points E and F are actually 800 m apart. Points G and H are actually 3.6 km apart. What will be the separation of each pair of points on maps with the scales given below? ScaleE - FG - H 1 : 10 000 _____________________________________ 1 : 50 000 _____________________________________ 1 : 250 000 _____________________________________ C.What is the actual distance between the following pairs of points on the St. Mary’s Lake map? Summit of Mount McKay to Mount Evans ______ Knoll at 502905 to road intersectionat 480915______ Outlet of White Boar Lake to Meachen Creek Road at 461895 ______

20 A.On a map, points A and B are separated by 4.0 cm. Points C and D are separated by 11.2 cm. What is the actual distance in km between these points for the map scales given below? ScaleA - BC - D 1 : 25 000 1 km2.8 km 1 : 50 000 2 km5.6 km 1 : 125 000 5 km14 km B.Points E and F are actually 800 m apart. Points G and H are actually 3.6 km apart. What will be the separation of each pair of points on maps with the scales given below? ScaleE - FG - H 1 : 10 000 8 cm36 cm 1 : 50 000 1.6 cm7.2 cm 1 : 250 000 0.32 cm1.44 cm C.What is the actual distance between the following pairs of points on the St. Mary’s Lake map? Summit of Mount McKay to Mount Evans 6.5 km Knoll at 502905 to road intersectionat 4809152.5 km Outlet of White Boar Lake to Meachen Creek Road at 461895 2.75 km

21 D. Give the UTM grid coordinates of the following features on the map provided: Feature Grid Coordinates 1. Mount Evans Summit ________________________ 2. End of road at head of Fiddler Creek ________________________ 3. Mayo Lake ________________________ 4. Bridge on Meachen Creek Road________________________ 5. Col NW of Mount Evans ________________________ E. Identify what is located at points with the following grid coordinates on the map provided: Grid CoordinatesFeature 1.535946_________________ 2.518871_________________ 3. 476864_________________ 4. 525961__________________

22 D. Give the UTM grid coordinates of the following features on the map provided: Feature Grid Coordinates 1. Mount Evans Summit 507892 St. Mary’s Lake 2. End of road at head of Fiddler Creek 490879 82 F/9 3. Mayo Lake 448862 St. Mary’s Lake 4. Bridge on Meachen Creek Road456892 82 F/9 5. Col NW of Mount Evans 503899 St. Mary’s Lake E. Identify what is located at points with the following grid coordinates on the map provided: Grid CoordinatesFeature 1.535946Bridge 2.518871Lake 3. 476864Knoll 4. 525961Marsh/Oxbow

23 LATITUDE AND LONGITUDE F. Give, to the nearest 5 seconds, the latitude and longitude of the following points on the topographic map you have been given: LocationLatitudeLongitude Summit of Hagwilger Peak o ' "N o ' "W Sawmill by New Hazelton o ' "N o ' "W The “16” on Hwy 16 ___ o ' "N o ' "W G. Identify the most prominent feature to be found at points with the following latitude and longitude on the map provided: 1. Latitude 49° 49’ 35” N______________________________ Longitude 116° 24’ 60” W 2. Latitude 49° 50’ 5” N______________________________ Longitude 116° 27” 20” W 3. Latitude 49° 47’ 25” N______________________________ Longitude 116° 27’ 40” W

24 LATITUDE AND LONGITUDE F. Give, to the nearest 5 seconds, the latitude and longitude of the following points on the topographic map you have been given: LocationLatitudeLongitude Summit of Hagwilger Peak 55° 11’ 50” N 127° 35’ 55” W Sawmill by New Hazelton 55° 14’ 35” N127° 35’ 50” W The “16” on Hwy 16 55° 14’ 20” N127° 31’ 25” W G. Identify the most prominent feature to be found at points with the following latitude and longitude on the map provided: 1. Latitude 49° 49’ 35” NSummit of Irish Queen Mountain Longitude 116° 24’ 60” W 2. Latitude 49° 50’ 5” NIntersection of Calamity and Dewar Creek Longitude 116° 27” 20” W 3. Latitude 49° 47’ 25” NEnd of road up Copper Creek Longitude 116° 27’ 40” W

25 Questions?


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