How to deal with the technicalities of direct storage and groundwater recharge?
Answers
In other seasons or weather conditions, warm air sits near the ground and the air can rise easily and carry away pollutants. In a temperature inversion, cold air is trapped near the ground by a layer of warm air. ... If AQHI readings do increase in the winter, it's generally due to the temperature inversion phenomenon
Some arguments for RWH are applicable to most situations.
Bangalore is growing at an unprecedented rate, and its sprawling expansion outpaces the public utility’s ability to accommodate skyrocketing demand for water and sanitation services. It is increasingly common for new residential communities to assume total management for their own water and sanitation services through their resident welfare associations. Most of these depend on borewells and tankers, which they sooner or later realize is not a sustainable option. Rainwater harvesting, including rooftop collection for domestic use and groundwater recharge, can be instrumental in efforts to achieve long-term water security.
Some basic figures on the anticipated yields of RWH interventions can be quite persuasive. The following table describes the amount of water that can be harvested for direct storage from average-sized and larger household rooftops: