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oa Botswana Notes & Records - About global warming and Botswana temperatures

Volume 27, Issue 1
  • ISSN : 0525-5090

 

Abstract

During the last three decades Botswana temperatures have risen in unison with global warming. Although warming in Botswana seems to take place in all seasons, winter maximum temperatures have shown the greatest increase. The frequency of extreme days such as summer days with maximum temperatures exceeding 350C and winter days with ground frost is expected to change accordingly. A simple drought index model shows that with an average decadal temperature rise of around 0.2OC since 1960 the drop in available water has significantly affected the water balance, with potential evapotranspiration in the growing season up by an amount equal to about 8% of the mean rainfall.

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/content/botnotes/27/1/AJA052550590_385
1995-01-01
2019-10-14

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