Question

Read graphs a and b and answer the following questions. Locate the places on the map:

1. 
   
   
   
2. 
   

1. Note the values of the axes. How different are these graphs from the earlier ones?
2. Note the highest and the lowest temperatures and their months
3. Note the highest and the lowest rainfall and their months.
4. Why does not a place from Southern Hemisphere appear here?
5. What factors are responsible for this climate?

Answer 1

1. The values of Taiga or Sub-Arctic regions show the mean annual temperature below freezing point (0°C) that is from 0° to -35° C. These values are not observed in the rest of the graphs.
2. In Whitehorse, the highest temperature recorded is around 20.0°C in the month of July, whereas January is the coldest month with an average temperature of -23°C. In Arkhangelsk, the highest temperature is in the month of July around 20°C, and the lowest in the month of January around -18°C.
3. The highest rainfall recorded is about 35 to 37 mm in the months of July, August in Whitehorse, and the lowest is in the month of April with just 9 mm. In Arkhangelsk, the greatest amount of precipitation occurs in August with an average of 66 mm. The lowest amount of rainfall occurs in February. The average is this month at 27 mm.
4. There isn't much land at higher latitudes in the hemisphere (until inside the Antarctic circle where it is permanently ice-covered) and most of that land is fairly close to oceans and it has the effect of marine warming
5. Located in a large continental landmass between 55° to 65° latitude, the Sub-Arctic climate is removed from any moderating influence of an ocean. It, therefore, experiences a very large range in annual temperature. During the summer it is dominated by the westerlies and cyclonic activity the winter it is the polar hight and Easterlies. The Sub-Arctic climate has continental polar air masses.