EVSC 1450 Lecture Notes - Lecture 2: Instrumental Temperature Record, Urban Heat Island, Global Temperature Record

• School: University of Virginia
• Department: Environmental Sciences
• Course: EVSC 1450
• Professor: Lawrence Deborah

Document Summary

Is the climate changing: what you might hear in the media: a. i. Fudging/manipulating data means money for scientists -- rick perry a. i. 1. Climate has been changing forever -- rick perry. You can"t trust the data (or the experts) a. iv. 1. Average surface temperature in 2012 vs 1901-- trend of an increase over the past century a. iv. 2. a. iv. 3. But data comes from thousands of weather stations. 1880s to 2000s just reflect the change from rural to urban? a. iv. 3. b. i. Urban heat island effect a. iv. 3. b. i. 1. this is a real effect a. iv. 3. c. How can we be confident in warming of 0. 5 - 1. 0 a. iv. 4. when the data seems to be off by several degrees? . Be skeptical of arguments that rest on scientists not being very smart a. iv. 5. a. iv. 6. Can remove bias by using anomalies a. iv. 6. a. a. iv. 6. b. To avoid and correct for potential bias a. iv. 6. b. i. a. iv. 6. c. Take reference period and subtract data from it. Avoid bias, need fewer data points a. iv. 7. a. iv. 8.