weather

Question 1

whatre the features of a stevenson screen

Answer 1

-above ground so it isnt influenced by ground temperatures
-sides of box are slanted to allow air to enter freely
-white to reflect away heat

Question 2

how is data collected in stevenson screens

Answer 2

data is collected automatically with little man input.signals are sent to computer automatically

Question 3

what does the stevenson screen contain

Answer 3

thermometer

Question 4

name the instrument and the unit that measures temperature

Answer 4

min-max thermometer in stevenson screen,in celcius

Question 5

name the instrument and the unit that measures rainfall amounts

Answer 5

rain gauge,in millimeters

Question 6

name the instrument and the unit that measures air pressure

Answer 6

barograph,in milibars

Question 7

name the instrument and the unit that measures cloud cover

Answer 7

eyes(look into sky n split in 8th),oktas

Question 8

name the instrument and the unit that measures wind speed

Answer 8

anemometer,in knots

Question 9

name the instrument and the unit that measures visibillity

Answer 9

eyes (geologists), in kilometers

Question 10

name the instrument and the unit that measures wind direction

Answer 10

wind vane in compas points

Question 11

whatre clouds made of

Answer 11

tiny water dropplets or ice crystals that settle onto dust particles in the atmosphere

Question 12

name the clouds made of ice crysyals and look like long thin white horse tails (CH)

Answer 12

cirrus clouds

Question 13

name the long artificial clouds that form behind aircrafts (CH)

Answer 13

contrails

Question 14

name the dark and grey layers of clouds that are thick enough to block out sun (CM)

Answer 14

nimbostratus

Question 15

name the CL cloud thats low and grey in colour which looks like fog

Answer 15

stratus

Question 16

name the CL cloud thats associated with thunderstorms and grows vertically

Answer 16

cumulonimbus

Question 17

name the CL cloud thats white and fluffy with a sharp outline thats associated with fair weather

Answer 17

cumulus

Question 18

where should weather stations be located (4)

Answer 18

-in fenced areas to avoid disruption and vandalism
-in open space to prevent shadeing from trees/buildings
-in flat land on grass to measure accurately
-high points to avoid wind blockage

Question 19

describe the impacts of tropical storms on people living in coastal communities (4)

Answer 19

-damaged homes and buildings which lead to homelessness
-damaged workplaces which lead to less income and workplace disruption
-contaminated water pipes which could lead to disease
-deaths
-need to evacuate

Question 20

explain how info about relative humidity can be collected for a periiod of 1 month (5)

Answer 20

• use a digital hygrometer
  -Check every day/daily;
  -Check at the same time (each day);
  -Read temperatures on wet and dry bulb;
  -Work out difference between wet and dry bulb temp./depression of wet bulb;
  -Use (relative humidity) table;
  -Read off figure displayed/statistics from data logger (if digital hygrometer)