ENVS 2270 Lecture Notes - Lecture 3: Ice Core, Estuary, Palynology

• School: University of Guelph
• Department: Environmental Sciences
• Course: ENVS 2270
• Professor: Kim Bolton

Document Summary

3. 1 global temperature: average temperature of the earth is 15 celsius, temperature anomaly the difference between the measured temperature of a particular (cid:455)ea(cid:396) a(cid:374)d a (cid:862)(cid:396)efe(cid:396)e(cid:374)(cid:272)e te(cid:373)pe(cid:396)atu(cid:396)e(cid:863). Estimating average global temperature: (cid:272)ie(cid:374)tists di(cid:448)ide ea(cid:396)th"s su(cid:396)fa(cid:272)e i(cid:374)to g(cid:396)id (cid:272)ells (cid:894)e. g. 5 x 5 , obtain temperature measurements in each grid box and calculate average. Stack (or add) these average temperatures and correct for earth"s geometry. Not all grids are the same size. Ma(cid:374)(cid:455) pa(cid:396)ts of he (cid:449)o(cid:396)ld do(cid:374)"t ha(cid:448)e te(cid:373)pe(cid:396)atu(cid:396)e data. Most are associated with things such as government or universities. Thousands if weather stations around the globe: ocean air and sea surface temperature (sst) Coastal stations, ships, argo (floats that measure factors within the upper 2000 meters of the ocean: satellites. Can measure air temperature of the lower troposphere using microwave sounding units (msus) Can also measure sea surface temperature: air balloons (weather balloons) Attached radioside measures air temp, humidity, etc.