Lecture Notes for ATOC 4750 - Desert Meteorology and Climate with Cassano at Colorado (CU)

Notes Information

Material Type:Note 2
Class:ATOC 4750 - Desert Meteorology and Climate
Subject:Atmospheric & Oceanic Sciences
University:University of Colorado - Boulder
  • Water Balance Concept
  • Precipitation
  • In/on/at a Place
  • Either...or
  • Distinction
  • Evapotranspiration
  • Concentrated
  • Combination
  • Evaporation
  • Temperature
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The Definition of "Desert" A Place May Be Defined As Desert Based on - ? Climate - amount of precipitation only; or combination of meteorological variables that affect the water balance ? Vegetation type or amount ? Type of surface/soil/substrate ? Water drainage (similar areas regardless of how defined) Consider Climate What aspects of climate control the dryness of the soil, and therefore the water available for vegetation? ? Annual amount of precipitation Is this all? Many definitions of desert are based only on precipitation amount. Simple Precipitation Thresholds for Defining a Place Desert ? 25 cm (10 inches) annually- common geographer's definition ? 5 cm annually ? 25 cm annually in cold climates and 50 cm in warm climates (why the distinction?) ? Have experienced 12 consecutive months without precipitation ? Number of precipitation days (> 2.5 mm) per month, regardless of amount But only considering precipitation is an oversimplification Consider Two Locations With A...

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