Climate
The climate of Lop Desert is extremely arid, a study in 1984 gives a mean annual precipitation of generally less than 20 mm, in another study in 2008 it was recorded as 31.2 mm. In the depression centre below 800 m in elevation, aridity can be expected to be much more extreme. Relative humidity of the atmosphere frequently dropped to zero, with air temperature as high as 50°C. Annual evaporation was estimated in 1984 to be between 1,000 and 1,500 mm in 1984, meaning that a lake with about 2 m in water depth will dry out within less than two years if cut off entirely from its feeding source. In 2008 the annual evaporation was reported as 2,901 mm.
Historically they were periods when the area was more favorable to farming and settlement than today. Studies showed that the area experienced seven major climate changes since the end of the Pleistocene.
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Famous quotes containing the word climate:
“The climate has been described as “ten months winter and two months mighty late in the fall.””
—Administration in the State of Colo, U.S. public relief program (1935-1943)
“A positive learning climate in a school for young children is a composite of many things. It is an attitude that respects children. It is a place where children receive guidance and encouragement from the responsible adults around them. It is an environment where children can experiment and try out new ideas without fear of failure. It is an atmosphere that builds children’s self-confidence so they dare to take risks. It is an environment that nurtures a love of learning.”
—Carol B. Hillman (20th century)