Chapter 4: Climate
Only a few aspects of an area’s climate show up on remotely sensed images, for example, the distribution of snowfall. However, air photos do show several of the effects of, and responses to, climate such as the construction of shelterbelts to protect against the wind.
4.2: The Assiniboine River and Valley Near Fort Ellice in Late Winter
This late winter photograph illustrates the usefulness of a light snow cover in picking out minor relief features. The Assiniboine River 1 meanders southwards across the area. It has left behind meander scars, particularly noticeable where woodland has been removed 2, and also a series of abandoned channels 3, 4, 5, 6 which tend to collect snow. The river flows in a steep-sided, flat-floored spillway, the east side of which is dissected by gullies that collect snow 7, 8, 9, 10, 11. A small stream with a steep-sided valley 12 flows southeast to join the
The linear feature on the east side of the Assiniboine Valley 16 is the CN railway line built just above the flood plain.
Figure 4.2: The Assiniboine River and Valley Near Fort Ellice in Late Winter
Vertical air photograph: A7563-15
Flight height: 11,800 feet a.s.l.; lens focal length: 209.55 mm
Date: April 14, 1945
Scale: 1:14,600 (approx.)
Location: Townships 16 and 17; Range 28 WI
Map sheets: 1:250,000 62K Riding Mountain
1:50,000 62K/6 Birtle