环境污染与气候变化

抽象的

Drought and Its types

Ranganamaina J

A drought is an occasion of drawn out deficiencies within the water supply, whether climatic (below-average precipitation), surface water or ground water. A dry spell can final for months or a long time, or may be pronounced after as few as 15 days. It can have a significant affect on the biological system and agribusiness of the influenced locale and hurt to the neighborhood economy. Annual dry seasons within the tropics essentially increment the chances of a dry spell creating and consequent bush fires. Periods of warm can essentially compound dry spell conditions by rushing dissipation of water vapor. Calculation of the AQI requires an air poison fixation over a predefined averaging period, gotten from an air screen or model.