Chapter 10 Notes

Chapter 10 Notes - Chapter 10: Global Climate Systems...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 10: Global Climate Systems Climate – the weather over many years, including its variability and extremes o Patterns that are dynamic rather than static o More than consideration of simple averages of temperature and precipitation o Climatologists – analyze global climate change Record breaking global average temperatures Glacial ice melt Drying soil moisture conditions Changing crop yields Spreading of infectious disease Changing distributions of plants and animals Declining coral reef health and fisheries Thawing of high latitude lands and seas Use computer models to simulate changing complex interactions in atmosphere, hydrosphere, lithosphere, and biosphere. o So diverse that no place on Earth’s surface experience exactly same climatic conditions. Earth is vast collection of microclimates. Broad similarities among local climates permit grouping into climatic regions. Earth’s Climate System and Its Classification o Climatology – study of climate – analysis of long term weather patterns over time and space, including extreme weather events, to find areas of similar weather statistics. ( Climatic Regions ) o Climates greatly influence ecosystems. Natural self regulating communities formed by plants and animals in nonliving environment. Basic climatic regions determine to a large extent the location of the world’s major ecosystems. These regions are called biomes. o Forest o Grassland o Savanna o Tundra o Desert Ecosystems should be thought of as being in constant state of adaptation and response. o Climate Components: Insolation – energy input for climate system that varies widely over Earth’s surface by latitude. Temperature – varies diurnally (daily) and seasonally. Principal Controls: o Latitude o Altitude o Land-Water Heating Differences o Cloud Cover Variations result from coupling of dynamic forces in atmosphere to Earth’s pattern of atmospheric pressure and resulting global wind systems. Location and physical characteristics of air masses, those vast bodies of homogenous air that form over oceanic and continental source regions. Moisture Transferred by hydrologic cycle with tremendous latent heat energy. Precipitation in all of its forms. Average temperatures and day length help approximate Potential Evapotranspiration. Most desert regions are in lands dominated by subtropical high pressure cells with bordering lands grading to grasslands and to forests as precipitation increases. Most consistently wet climates on Earth straddle equator in Amazon region of South America, Congo of Africa, and Indonesia and Southeast Asia. o
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/18/2008 for the course GEOG 101 taught by Professor Thebpanya during the Fall '07 term at Towson.

Page1 / 6

Chapter 10 Notes - Chapter 10: Global Climate Systems...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online