GEOL 1340 Chapter Notes - Chapter 8: United Nations Environment Programme, Nitrogen Cycle, Radiative Forcing
14 Oct 2016
School
Department
Course
Professor
Document Summary
7:06 pm: evidence for present climate change. Record setting summer daytime t being recorded. Rate of 0. 07% per year as oceans absorbed atm heat. Doesn"t contribute to sea-level rise because ice displaces own volume in seawater. Pack ice in arctic sea important due to albedo. High lat and worldwide at high elevations. Mean sea level (msl): value based on average tidal levels recorded hourly at given site over years. Rising more quickly than predicted by most climate models. Floods: causes of present climate change. Naturally produced as part of nitrogen cycle. Climate forcing describes amt which some perturbation causes earth"s e balance to deviate from zero. General circulation models (gcms): established for forecasting weather. 3d grid box for location on or above surface. Rep concentration pathway rcp id by approximate radiative forcing it predicts for. Does positive radiative forcing of t have natural or anthropogenic causes? year 2100. Low end 0. 3, high end 1. 2 m.
