chapter 10 Flashcards
Climate
the consistent, long-term behaviour of weather over time, including its variability; in contrast to weather, which is the condition of the atmosphere at any given place and time
Climatology
the scientific study of climate and climatic patterns and the consistent behaviour of weather, including its variability and extremes, over time in one place or region; includes the effects of climate change on human society and culture
Climate region
an area of homogenous climate that features characteristic regional weather and air mass patterns
Biogeography
the science that describe distinct regions of broadly similar flora (plants) and fauna (animals)
Ecozone
(sometimes called A biogeographic realm) is a geographic region where a group of associated plant and animal species evolved
Classification
the process of ordering or grouping data or phenomena in related classes; results in a regular distribution of information; a taxonomy
Genetic classification
a climate classification that uses causative factors to determine climatic regions; for example, an analysis of the effect of interacting air masses
Empirical classification
a climate classification based on weather statistics or other data; used to determine general climate categories
Climograph
a graph that plots daily, monthly, or annual temperature and precipitation values for a selected station; may also include additional weather information
Biomes
broad regions, with their associated soil, plant, and animal communities
Classification of climatic regions is based on what
temperature and precipitation
Six basic climate categories
1- tropical (tropical latitudes: 23.5° N -23.5° S)
2- Mesothermal (midlatitudes, mild winter)
3- Microthermal (mid and high latitudes, cold winters)
4- Polar (high latitudes and polar regions
5- Highland (high elevations at all latitudes)
6- Dry (permanent moisture deficits)
Tropical rain forest climate
Tropical rain forest climates are constantly moist and warm, convectional thunderstorms, triggered by local heating and trade-wind convergence, peak each day from mid-afternoon to late evening inland and earlier in the day where marine influence is strong along coastlines, huge canopies and sparse vegetation cover near ground
what affects the tropical rain forest climate region throughout the year
the ITCZ
Tropical Monsoon Climates
-Experiment dry season that lasts 1 or more months, when the ITCZ has moved away from the region
-lie principally along coastal areas within the tropical rain forest climatic realm and experience seasonal variation of wind and precipitation
Tropical savanna climates
Tropical savanna climates are poleward (toward the north pole or south pole) of the tropical rain forest climates, ITCZ reaches these climate regions for about 6 months or less, summers are wetter than winters
why can the Tropical savanna climates have two temperature maximums during the year
because the sun’s direct rays are overhead twice, before and after the summer solstice in each hemisphere as the subsolar point moves between the equator and the tropics
Mesothermal
middle temperature, have warm and temperature climates, where true seasonality begins, mild winter
the 4 climates of mesothermal
- humid subtropical hot-summer climates
- Humid subtropical winter-dry climate
- Marine west coast climates (warm to cool summers)
- Mediterranean dry-summer climates (dry summers)
Humid subtropical hot-summer climates
Humid subtropical hot-summer climates either are moist all year or have a pronounced winter-dry period. in fall, winter, and spring, maritime tropical and continental polar air masses interact, generating frontal activity and frequent midlatitude cyclonic storms. These two mechanisms produce year-round precipitation
what influences the Humid subtropical hot-summer climates during summer
Maritime tropical air masses generated over warm waters off eastern coasts
Humid subtropical winter-dry climates
Humid subtropical winter-dry climates are related to the winter-dry, seasonal pulse of the monsoons. The extend poleward from tropical savanna climates and have a summer month that receives 10 times more precipitation than their driest winter month, flooding, thunderstorms, and tornadoes can happen
Marine west coast climates
featuring mild winters and cool summers, maritime polar air masses, cool, moist, unstable, dominate marine west coast climates, marine west coast climate are unusually mild for their latitude
The mediterranean dry-summer climate
designation specifies that at least 70% of annual precipitation occurs during the winter months. This shifting of stable, warm to hot, dry air over an area in summer and away from that area in winter created a pronounced dry-summer and wet-winter pattern