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Conclusions

We have examined humidity and surface soil moisture data in this study using 1969-2012. The data analysis indicates increasing trends in both surface and upper air relative humidity and specific humidity. All India averaged specific humidity is significantly increasing for all the periods while relative humidity values are significantly increasing except for the monsoon season. The increase in surface humidity and moisture content in the atmosphere is consistent with the increase in surface and air temperatures over the region (Chap. 2). Variations in annual surface soil moisture in India show general agreement with the rainfall pattern. While the hilly regions, north-east and central India and west coast, have the highest soil moisture, the lowest soil moisture is found over the western region and along the east coast of India. The results obtained in this study provide evidence of significant increase in atmospheric moisture content over India.

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