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Geology 112
2.2 Fluid Environments
Question | Answer |
---|---|
Climate is.... | Average weather over period of 30+ years |
Areas of zonal distribution are....(6) | Polar, temperate, equatorial, mediterranian, dry topics, wet tropics |
Zonal distribution doesnt work because....(3) | Rotating globe complicates circulation, Uneven distribution of land and sea, complications of orography |
Earth's climate system is unique beause... | mainly having H2O in all 3 states |
The Earth rotates every year on the..... | plane of the ecliptic |
Earths orbit is..... | elliptical |
When Earth is closest to sun... | perihelion |
When Earth is furthers from the sun..... | aphelion |
Rotates on axis which is..... | 23.5 degrees off verticle, which points at Polaris all year |
Important dates.... | 2 solstices 2 equinoxes |
Solar intensity is greatest at.... | sub-solar point |
Precession.... | axis "wobbles" like spinning top (24 ka cycle) effect which hemisthere has perhelion |
Precession proposed by | Milankovitch 1920 |
Greenhouse gasses are.... | transparent to short wave but absorb long wave, amoujnts to 33+ K |
Greenhouse gas compositions are.... | 66% H2O, 33% carbon dioxide |
The termal structure of earths atmosphere.....(TSMT) | Troposhere (<, 12km), Stratoshpete (> cause of ozone, 50km), Mesosphere (<, 85km) Thermoshpere(>) |
Changing H20 requires..... | reuires energy or releases energy (latent heat) |
The hydrologic cycle is..... | the movement of H20 around the system |