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Maths > large data set > Flashcards

large data set Flashcards

1
Q

what is daily mean temperature measured in

A

degrees C

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2
Q

what is the typical range of daily mean temperature

A

5C-24C

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3
Q

what is daily total rainfall measured in

A

mm

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4
Q

what is the typical range of daily total rainfall

A

0-20mm

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5
Q

what is daily total sunshine measured in

A

hours

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6
Q

what is the typical range of daily total sunshine

A

0-14 hours

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7
Q

what is cloud cover measured in

A

oktas

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8
Q

what is the typical range for cloud cover

A

0 to 8

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9
Q

what is humidity measured in

A

%

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10
Q

what is the typical range for humidity

A

70-100%

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11
Q

what percentage humidity is associated with fog

A

95%

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12
Q

what is visibility measured in

A

decameters

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13
Q

what is the value of one decametre in meters

A

10 meters

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14
Q

what is the typical range of visibility

A

200-4000 dm

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15
Q

what is daily mean pressure measured in

A

hectopascals (hPa)

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16
Q

what is the typical range for daily mean pressure

A

990-1040kPa

17
Q

what is a trace value for rainfall

A

a value between 0 < r < 0.05

18
Q

when cleaning data what are trace values replaced with

A

0 or 0.025

19
Q

what is daily mean windspeed measured in

A

Kn (knots)

20
Q

what is the typical range of daily mean windspeed

A

3-10 kn

21
Q

what is the Beaufort conversion for windspeed

A

qualitative measure of windspeed
light, moderate, fresh, strong

22
Q

what is the typical range for Beaufort conversion

A

light to moderate

23
Q

what is daily maximum gust measured in

A

Kn (knots)

24
Q

what is the typical range of daily maximum gust

A

8-50 Kn

25
Q

what is wind gust/ direction measured in (BEARINGS)

A

bearings in degrees

26
Q

what is the typical range of wind direction (BEARINGS)

A

10-360 degrees in multiples of 10

27
Q

what is wind gust/direction measured in (CARDINAL)

A

compass direction

28
Q

what UK weather stations are coastal and therefore windier

A

leuchars and Camborne

29
Q

what are the 3 international weather stations

A

Jacksonville florida usa
Beijing china
Perth australia

30
Q

characteristics of Jacksonville Florida

A

hot summers
hurricanes in October

31
Q

characteristics of beijing china

A

hotter wetter summers
colder winders

32
Q

characteristics of Perth Australia

A

flipped seasons (southern hemisphere)

Maths (3 decks)

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