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Soil Temperature & Global Warming

tipo de documento Earth Sciences and Environment - Experiment/Lab

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Soil temperature varies from one month to the next depending upon such factors as solar radiation, rainfall, seasonal swings in overhead air temperature, plant cover, soil type, and depth in the earth. The temperature of the soil at the earth’s surface is very sensitive to air temperature. Global surface temperatures have increased by an average of 0.74 deg C (plus or minus 0.18 deg C) since the late 19th century. The trend over the past 50 years corresponds to an increase in temperature of 0.13 deg C (plus of minus 0.03 deg C) per decade. Is soil temperature a good indicator of global warming trends? How does soil temperature vary with depth from the surface?

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