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Does temperature vary with height and aspect across The Devil's Kneading Trough.

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Introduction

David Deregowski                      Geography Coursework            10.05.2007                          

Geography Coursework

Question of the course work:

Does temperature vary with height and aspect across The Devil’s Kneading Trough

Identification of the Question:

In my opinion there should be a relationship temperature varies with height and aspect. The theory behind those temperature varies is that cold air sinks down the valley during the night. To be more precisely it is the ground temperature which have been cooled down by the ground and so it became more dense than the rest of the air. As the ground air has now a high density it sinks down the valley. So the bottom of the valley should be colder than the rest of it. But during the day when the shortwave radiation of the sun starts to have an impact the bottom of the valley becomes warmer than the top because the bottom has more surrounded land which gets heated up. So my theory would be that temperature falls during the morning or night but rises during the day.

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Middle

-34

20

11\12.8

F

-32

20

10\13.5

G

-25

20

10.6\13.8

H

3

20

11.1\14.4

I

32

20

11\17.4

J

33

20

12.1\18.9

K

31

20

13.2\16.9

L

26

20

15\16.3

M

23

20

13\17.5

N

20

20

14\20.8

O

11

20

12.3\20

P

20

14.2\16.5

Second Transect:

Point

Angle

(in degrees)

Distance

(in metres)

Temperature

(in celsius)

A

-31

10

Ground:12.6\Air:22.3

B

-34

10

12.3\20.3

C

-32

20

12.4\21.1

...read more.

Conclusion

I couldn’t  prove that cold air sinks down with the results I got because the coldest point of the valley is not the bottom. I am also very dissapointed about that after using the Spearman Rank formula the results showed no corolation between height temperature. Maybe the first transect had been started too late so that the bottom could warm up during the morning and it is also possible that to prove my theory I would had to think about factors that could have an influence on it i.e. vegetation and soil.

Therefore the air temperature at the bottom is the warmest  but the ground temperature is still lower than the ground temperature of the west sloap. This could be because the surfaces is goalt clay and it takes more time to heat it up.

  The air temperatur is higher than the ground temperature. This could be affected by the longwave radiation of the ground.

...read more.

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