. Dry farming in western Canada . Fig. 16.—Hours of Possible Sunshine Daily in Summer. 26a. The Effect of Latitude and Altitude on Tempera- ture.—Where no other factors interfere the average de- crease in temperature is approximately three degrees for every 100 miles one goes in a northerly direction. It is seldom, however, that this ratio is not affected by changes in altitude or relation to forests or large bodies of water. The lowering of temperature as a result of increase in elevation averages one degree for every 300 feet. The effect of latitude and altitude is clearly shown by the heigh
. Dry farming in western Canada . Fig. 16.—Hours of Possible Sunshine Daily in Summer. 26a. The Effect of Latitude and Altitude on Tempera- ture.—Where no other factors interfere the average de- crease in temperature is approximately three degrees for every 100 miles one goes in a northerly direction. It is seldom, however, that this ratio is not affected by changes in altitude or relation to forests or large bodies of water. The lowering of temperature as a result of increase in elevation averages one degree for every 300 feet. The effect of latitude and altitude is clearly shown by the height of the permanent snow line above sea level. At the north pole this line is at sea level. At the southern
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdryfarm, bookyear1921
