ENV100H1 Lecture Notes - Lecture 47: Halocarbon, Keeling Curve, Subtropics

• School: UTSG
• Department: School of Environment
• Course: ENV100H1
• Professor: Barbara Murck

Document Summary

Tools for studying climatic change: direct observational method, geoligcal record, proxies. Want to get ice cores from high altitude glaciers in tropics and sub-tropics. Construct them when things are too complicated to go out and study. Simplified model to see how system will react to changes. General circulation models: 3d mathematical models, purposes link all processes together with geo and altitude improve weather forecasting run simulations of present-day climate patterns as a way of testing climate models, predict future global climatic changes. 40 some groups that feed directly into ipcc. How to we validate the models entering data from past to see if it replicates the present: got a good model if it does red is observed temp. Blue are models forcing = processes that affect net irradiance crucial word is trend. We need to understand long term trends to understand impact of human activity extremely strong consensus looks at everything trend: a pattern.