Climate change, Climate variability, Heating degree days, Cooling degree days
Results of a global climate model that simulates climate under a doubling of atmospheric carbon dioxide (estimated to occur by the latter half of the twenty first century) have been interpolated to Iowa. Summer temperatures under such a doubling are projected to rise by 4 to 7°F (2.2 to 3.9°C) and winter temperatures by 10 to 11° (5.6 to 6.1°C). Estimates of space heating and cooling demands from these data suggest a 30 to 35% decrease in space heat demand and a 200 to 300% increase in space cooling demand. Temperature variability is projected to decrease. Precipitation estimates from global climate models are not considered very reliable. For the model used, total annual precipitation for Iowa increases by about 3% which is well within the natural year-to-year variability.
Journal of the Iowa Academy of Science
© Copyright 1991 by the Iowa Academy of Science, Inc.
Takle, E. S. and Zhong, S.
"Iowa's Climate as Projected by the Global Climate Model of the Goddard Institute for Space Studies for a Doubling of Atmospheric Carbon Dioxide,"
The Journal of the Iowa Academy of Science: JIAS: Vol. 98:
, Article 3.
Available at: http://scholarworks.uni.edu/jias/vol98/iss4/3