GEOG 2050 Chapter : GEOG 2
Document Summary
Earth"s energy budget: solar radiation varies, output from sun, distance of earth from sun, daily, seasonally, latitudes, atmospheric functions as a filter absorbs, gamma rays, x-rays, and uv, allows visible light to reach earth"s surface. Short wave energy from sun: sun- short wave energy from sun moving through atmosphere. Long wave energy from earth: earth radiates long wave energy back to space. Transmission: passage of energy through atmosphere or water: different forms of transmission of energy, insolation input, all radiation received at earth"s surface, direct and indirect, inside contour- 280& up/ outside- 280& down. Insolation in atmosphere encounters gases, dust, clouds, and smoke. 50% of insolation makes it to the earth"s surface (energy) particles can either (fig. Smaller molecules: longer wavelengths less scattering (orange to red. More heat produced: july and january albedo. Nh winter- more snow (polar up to ~80%: aerosols. Volcanic eruptions: increased albedo, reduces earth"s surface temp, pinatubo reduced global average annual temp. by 0. 5degc.
