To set the stage, the dryest parts of Saudi Arabia get only 40-80 mm/yr of rainfall. The "wettest" regions are considered those that get more than 150 mm/yr. Average annual temperatures are at least 24°C, and are 27°C in the warmest region.
So, over the last half of the two-decade period 1978-2008, researchers found that rainfall there is decreasing at 47.8 mm/decade.
The maximum, mean, and minimum temperatures are increasing at rates of 0.71, 0.60, and 0.48°C/decade, respectively.
Saudi Arabia may be rich enough for at least some of its citizens to tolerate such changes. But its southernmost region is still at 16°N. (To set the scale, Miami is just as little less than 26°N.) To northerners like most of us, 0.2°C/decade might not sound like much of a problem. But I wonder about those even near the equator.
--
For non-metric readers, here are the English numbers:
The dryest parts of Saudi Arabia get only 1.6-3.1 inches/yr of rainfall. The "wettest" regions are considered those that get more than 5.9 in/yr. Average annual temperatures are at least 75°F, and are 81°F in the warmest region.
Over the last half of the two-decade period 1978-2008, researchers found that rainfall there is decreasing at 1.9 in/decade.
The maximum, mean, and minimum temperatures are increasing at rates of 1.3, 1.1, and 0.9°F/decade, respectively.
Saudi Arabia may be rich enough for at least some of its citizens to tolerate such changes. But its southernmost region is still at 16°N. (To set the scale, Miami is just as little less than 26°N.) To northerners like most of us, 0.4°F/decade might not sound like much of a problem. But I wonder about those even near the equator.
No comments:
Post a Comment