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atmosphere (part 3) (data collection (historic data, proxy data, ice core…
atmosphere (part 3)
data collection
historic data
proxy data
ice core data
satellite data
monitering ocean currents
computer models
difficulties in monitoring and predicting climate change
time scales
short term - a sudden storm long term - trend of winters with increased rainfall
spatial scales
local
- local flooding
regional
- area with increased rainfall due to increased evaporation
global
- increased global temp due to increased infrared absorption
interconnected systems
natural fluctuations
time delay between cause and effect
impacts of climate change on human society
health
heat wave = health problems
disease vector may change distribution - mosquitoes
food poisoning more common = pathogens grow more rapidly in unrefrigerated food
water supplies
food supplies
change in temp and water availability may change crop species that can be grown
reduced water availability = crop irrigation more important
warmer winters = more pest insects to survive = pest damage to crops
impacts on infrastructure
road heat stress - melting of tar - roads to deform - re-laid roads
track buckling - high temp = rail track to expand and buckle - rising temp = tracks to be relaid with track resistant to higher temp
drainage - higher rainfall or periods if sudden heavy rain will increase flooding risks
landslides - heavy rain = water log ground and lubricate soil and rock particles - landslides more likely
bridge damage - heavy river flow after heavy rain = put pressure on bridge supports - esp if objects such as tree trunks hit the bridge