In the middle and greater Himalaya, natural springs are the main source of domestic water consumption, but their discharge does not remain constant with time. Erratic rainfall directly affects the recharging of the spring catchment. In this communication, the behaviour of a perennial spring with rainfall variation is analysed from eight years

During the earliers days, hilly villages used to have their own ponds, which served the community. The ponds were desilted by the community. But over the period of time, bond of the villagers over such common property is getting weak.

Lake Oussudu, which is the largest wetland in the Union Territory of Pondicherry, is one of the most important bird sanctuaries in India. Apart from being an important water resource and a heritage site, Oussudu watershed also caters to the other needs of the people living around the lake; notably fishing, grazing of the domestic livestock and harvesting of reeds.

A model is developed to understand the relationship between satellite-derived NDVI and rainfall data in a large tropical catchment. Two Fourier-based modeling techniques with a seasonal component, viz. a seasonal model (SM) and a linear perturbation model (LPM) are tested, and their performance in reproducing the observed NDVI was evaluated. The methodology makes use of 15 years of 10-day composite time series data of rainfall and NDVI, which is estimated from NOAA-AVHRR data, both of which constitute concurrent data from 1982-96.