Large data set Flashcards

1
Q

Most far North

A

Leuchars

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2
Q

Most far south

A

Perth

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3
Q

Closest to furthest from the equator

A
Jacksonville
Perth
Beijing
Camborne 
Hurn 
Heathrow 
Leeming 
Leuchars
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4
Q

In the UK

A
Camborne
Leeming
Leuchars
Heathrow 
Hurn
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5
Q

Daily mean temperature

A

The average of the hourly recordings in a 24 hours period.

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6
Q

Daily total rainfall

A

Includes snow or ice that has melted before measuring.

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7
Q

Traces (tr)

A

Less than 0.05mm of rain/water.

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8
Q

Daily total sunshine

A

Recorded to the nearest 1/10 of an hour

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9
Q

Calm on beaufort scale and knots reading

A

0 (beaufort scale)

Less than 1 knot

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10
Q

Light on the beaufort scale and knots reading

A

1-3 (beaufort scale)

1-10 knots

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11
Q

Moderate on the beaufort scale and knots reading

A

4 (beaufort scale)

11-16 knots

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12
Q

Fresh on the beaufort scale and knots reading

A

5 (beaufort scale)

17-21 knots

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13
Q

Daily maximum relative humidity

A

Given as a percentage of air saturation. Above 95% is misty and foggy.

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14
Q

Measurements overseas do?

A

Daily mean temperature
Daily total rainfall
Daily mean pressure
Daily mean windspeed

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15
Q

1 knot = …. mph

A

1.15 mph

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16
Q

Daily mean visibility

A

Measured in decametres (Dm). The greatest horizontal distance an object can be seen in daylight.

17
Q

Daily mean pressure units?

A

Measured in hectopascals (hPa)

18
Q

Large data set values?

A

Always give to 1dp

19
Q

Limitations of the large data set

A

Not all values are available (na)