GEO E111 Lecture Notes - Lecture 15: Blotting Paper
Document Summary
The rate and amount of evaporation is measured using piche and tank evaporimeters. When there is a lot of sunshine water evaporates from the blotting paper. The level of water in the glass tube reduces. The rate and amount of evaporation is got by looking at the scale on the outside of the glass tube. The tank with water is put in the open. Water evaporates when there is a lot of sunshine. The rate and amount of evaporation is got from calibrations in the inner side of the tank in mm. The amount of cloud cover is observed using eyes. Okta=approximately 1/8 of sky is covered with clouds. Prediction of the conditions of the atmosphere for a given place for a certain period. Prediction of weather based on traditional beliefs and facts. Migration of butterflies also indicates it will rain. Croaking of frogs during dry season indicate its going to rain.
