期刊
ENVIRONMENTAL EARTH SCIENCES
卷 71, 期 11, 页码 4835-4847出版社
SPRINGER
DOI: 10.1007/s12665-013-2875-0
关键词
Stable isotope of Oxygen and Hydrogen; Isotopic characterization of Precipitation; Source of moisture; Bhagirathi Basin; Uttarakhand India
资金
- National Institute of Hydrology, Roorkee
- Department of Atomic Energy through BRNS, Mumbai
River Ganges one of important rivers in the northern part of India receives water from two of its tributaries, Alaknanda and Bhagirathi. In this present study, we have tried to characterise the precipitation in the Bhagirathi River Basin. The study shows that isotopic composition of precipitation shows depleted nature during monsoon period due to moisture source from the oceanic region and from African region of Indian Ocean and enriched isotopic composition during non-monsoon period due to moisture source from westerlies and local evaporation. The study also shows that temperature and amount show expected positive and negative relationship with individual locations. A positive relationship is exhibited by amount for the entire region due to depleted isotopic composition with increase in altitude. The altitude effect shows that there is a depletion of up to -0.24 to -0.29 aEuro degrees of isotopic composition with an increase in 100 m of elevation.
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