Geography 2310A/B Lecture Notes - Lecture 2: Cool Air, Sensible Heat, Antarctic Circle

• School: Western University
• Department: Geography
• Course: Geography 2310A/B
• Professor: Mark Moscicki

Document Summary

From objects with higher temperatures toward objects with lower temperatures. Electromagnetic spectrum: wavelength = the distance between two wave crests (top of hill is crest, as energy increases, wavelength decreases, as energy increases, temperature decreases. Radiation from the sun: because the sun is so hot, it emits most of its radiation at shorter wavelengths, (cid:373) = (cid:858)(cid:373)i(cid:272)ro(cid:373)etres(cid:859) = (cid:1005) (cid:454) (cid:1005)(cid:1004)-6 m. Shortwave and longwave radiation: the sun emits shortwave radiation (visible, ultraviolet, the earth emits longwave radiation (infrared) Radiation pathways: there are two major pathways, shortwave radiation from the sun (k, longwave radiation from the earth (l) Flow of radiation: flux: the net rate of flow of radiation, rate of flow is measured in joules/sec = watts (w, flux density: the net rate of flow of radiation per unit area. It is measured in watts per m2 (w m-2: flux density = flux/area.