LDS - stats

what months do we have data for in the LDS

may - oct

how many years do we have data from?

2 years

what years do we have data from?

1987

and

2015

what are we able to do if we are talking about 2 years?

compare the same months but from both years

what month(s) occupy spring

May

what month(s) occupy summer

June, July, August

what month(s) occupy autumn?

september and october

what are the 5 weather stations (in UK) from bottom towards top of map

Camborne

Hurn

Heathrow

Leeming

Leuchars

what is the way to remember the weather stations?

they go in alphabetical order from bottom to top (other than heathrow and hurn, which are flipped)

theres 1 C

2 H

and 2 L

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as we move further north during may-oct what happens to the AVERAGE hours of sunshine

decreases

what are the units for daily mean temp?

degrees celcius

what is the typical range of daily mean temp?

around ~5 - ~24 degrees celcius

what units are daily total rainfall

mm

what is the typical range for daily total rainfall

0 - ~20 mm

daily total rainfall is ___________ as there are many ________ and ________ values when it comes to daily total rainfall

is not symmetrical as many 0 and tr (trace) values when in relation to daily total rainfall

what do u do to “cleanse the data” if u have a tr value

replace tr with 0

if we have data with “N/A” then what do we have to do

discard that. we cant use it

daily total sunshine units

hours

what is the typicla range of daily total sunshine?>

0 to ~14 hours

cloud cover units

oktas

what is the typical range for cloud cover

0 - 8 oktas

can cloud cover take continuous data or is it just integers?

ONLY integers

how many options are there for cloud coverage (total number of options)

there are 9 options, as u have to include 0 as well

so:

0, 1, 2, 3, 4, 5, 6, 7, 8

what is the unit humidity is measured in

%

what is the typical range for humidity

~70% - 100%

can humidity take continous data, or is it only integers

ONLY integers

what is daily mean visibility measured in

decametre (Dm)

1 Dm is equal to how many metres

1DM = 10m

what is the typical range of daily mean visibility

~200Dm - ~4000Dm

what is daily mean visibility rounded to?

nearest 100

what is daily mean pressure measured in

hectopascals (hPa)

what is the average daily mean pressure value

1000 hPa

can daily mean pressure be measured continuously or is it only integer

ONLY an integer

what is daily mean windspeed measured in?

knots

what is the typical range for daily mean windspeed?

~3 - ~10 kn

can knots be in continuous or just integers

ONLY INTEGERS

when u convert from knots to beau fort, what happens to the data

it becomes qualitative

what is wind/gust direction (bearing) measured in

degrees, as is a bearing form the north

wind gust/direction is only measured in ________ of _______

multiples of 10

what is wind/gust direction (cardinal) measured in?

compass direction

when doing cardinal wind direction, it describes where the wind is blowing ________, not ________

says where wind is blowing FROM, not to

what are the 3 international stations (going clockwise)

i want:

city, state (if applicable), country

1. Jacksonville, Florida, USA

2. Beijing, China

3. Perth, Australia