Weather and Climate Flashcards
(50 cards)
Main ocean current in the Northern Hemisphere
Gulf Stream - North Atlantic Drift
North Atlantic Drift
Surface current carried by the South Westerlies - makes the UK winter milder.
Milankovitch cycles
Eccentricity, axial tilt and precession - changes in the Earth’s orbit around the Sun or changes in its axis, leading to changes in the Earth’s climate or seasonal variation.
High pressure vs low pressure
Little rainfall vs high rainfall.
South Westerlies
Warm, moist prevailing wind for the UK - hits the west first, causing more rainfall in the west than the east.
Volcanism
Big volcanic eruptions produce ash and sulfur dioxide that block and sunlight reflect it back into space, cooling the planet.
Solar variation
More black sunspots = higher temperature.
Climate
Average conditions of the atmosphere in an area over a long period of time (e.g. temperature, rainfall).
Weather
The short day to day conditions of the atmosphere.
Coriolis effect
Deflection of wind due to the spinning of the Earth on its axis.
Tropical cyclone weather hazards
High winds, intense rainfall, storm surges, coastal flooding, landslides.
Hurricane Sandy date
Made landfall in New Jersey on 29/08/12.
Hurricane Sandy - Social impacts
150 people dead, subway stations and road tunnels flooded, schools closed, no power, temporary homelessness.
Hurricane Sandy - Economic impacts
$65 billion in property damage, $3.3 billion in insurance claims, NY Marathon cancelled, NY stock exchange closed for several days.
Hurricane Sandy - Environmental impacts
NJ beaches damaged, raw sewage released into waters, oil spills destroyed habitats, nature reserves damaged.
Hurricane Sandy - Responses by individuals
Social media used to co-ordinate aid, most people had home insurance and rebuilt quickly, people moved in with relatives and into shelters.
Hurricane Sandy - Responses to environmental impacts
NJ beaches reopened, farmland and floodplains repaired, nature reserves restored.
Hurricane Sandy - Responses by organisations
NGOs sent relief workers and volunteers to hard-hit areas with food and supplies, charity concerts, telethons, corporate donations.
Hurricane Sandy - Responses by the government
$60.3 billion in aid, $6.2 million for emergency food assistance, flood-prone homes bought out by government.
Typhoon Haiyan date
Hit Philippines on 7/11/13 as a Category 5 cyclone.
Typhoon Haiyan - Social impacts
6,000 dead, 25,000 injured, 1500 missing, widespread destruction in Tacloban city, power cut off, looting, transport networks cut off.
Typhoon Haiyan - Economic impacts
$2 billion worth of damage, $85 million worth of farm related damage, coconut and rice plantations destroyed.
Typhoon Haiyan - Environmental impacts
Chemical leaks, forests destroyed, mangroves destroyed, drinking water contaminated by sea water, lack of sanitation.
Typhoon Haiyan - Responses to environmental impacts
Water tanks installed in some areas, work on restoring public sanitation systems began a month after.