REMOTE SENSING PILOT PROJECT REPORT
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Thursday 17th October

 

Table 3            Results for 17th October

 

Time

17-10-02

Cardiff (C)

Cardiff weather

Offwell (C)

Offwell weather

07:00

4

Dark, no wind, dry

Part cloud

7.2

Clear

09:00

7

Some sun

Dry, no wind, thin cloud

7.6

Little cloud

11:00

9

Thin cloud, sun, no wind, dry

11.3

Very thin cloud

13:00

10.25

Thin cloud

11.7

Scattered cloud

15:00

9.75

Thin cloud, pale sun, gentle breeze.

11.4

Light cloud

17:00

9

Blue sky, sunny, cirrus clouds, slight breeze.

10.1

Clear

19:00

5.5

 Dark, dry, breezy, Clear

7.8

Clear

 


Graph 3

 

The first reading of the day at Cardiff was 4C, the coldest temperature recorded during the experiment. At 09:00hr there was some sun and the temperature rose to 7C. By 11:00hr there was cloud and pale sun; the temperature was 9C. There was a further rise to 10.25C by 13:00hr with just thin cloud overhead. The temperature dropped 0.5C to 9.75C by 15:00hr with cloud, pale sun and a gentle breeze. At 17:00hr there was blue sky, cirrus cloud and a light breeze; the temperature had dropped to 9C. At 19:00hr it was dark, dry with clear sky and breezy and the temperature had fallen to 5.5C.

            Offwell also started with its coldest temperature recorded in the experiment, 7.2C. At 09:00hr there was little cloud but the temperature had risen by only 0.4C, perhaps because the sensor was still in shade. By 11:00hr there was thin cloud and the temperature had increased to 11.3C an increase of 2.7C; by now, the sensor was in sun. The temperature reached its peak of 11.7C at 13:00 hours, with only scattered cloud. By 15:00hr some thin cloud had returned and the temperature decreased to 11.4C. At 17:00hr there was no apparent cloud cover and the temperature had dropped to 10.1C. By 19:00hr the temperature dropped to 7.8C as darkness set in, with clear sky.

            The temperature range at Cardiff on this day were from 4C to 10.25C, that is 6.25C and at Offwell from 7.2C to 11.7C, that is 4.5C. The greatest difference was observed in Cardiff though both sites showed the greatest temperature range of the three -day period. This day also had the thinnest cloud cover of the three days and both sites had some sunshine during the day.

 

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