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The study of the connection between isotopic depletion in precipitation and stratiform rains is limited. This study reports the relationship between the temporal characterization of stable isotopes in precipitation in Lucknow of Central India that has been lacking up to the present. Stable isotope analyses were carried out on collected precipitation samples from three locations in the city of Lucknow in northern India, from July 2018 to September 2018 is reported here. A least-squares regression of the isotope data was used to obtain the local meteoric water line (LMWL), and the obtained LMWL was δD = 7.75 δ18O + 7.2 (R2 = 0.99). The average δ18O values of the samples ranged from − 16.27 to 0.45‰ while δD values varied from − 112.42 to 10.51‰ respectively.

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Temporal Patterns and Intra-seasonal Isotopic Characteristics of Indian Summer Monsoon Precipitation in Lucknow, India

  • 会议论文

  • 发表日期：

    2025年

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  • K. Prasanna,
  • Anurag Kumar,
  • Anupam Sharma,
  • Supriyo Chakraborty,
  • Ravi Rangarajan

摘要

The study of the connection between isotopic depletion in precipitation and stratiform rains is limited. This study reports the relationship between the temporal characterization of stable isotopes in precipitation in Lucknow of Central India that has been lacking up to the present. Stable isotope analyses were carried out on collected precipitation samples from three locations in the city of Lucknow in northern India, from July 2018 to September 2018 is reported here. A least-squares regression of the isotope data was used to obtain the local meteoric water line (LMWL), and the obtained LMWL was δD = 7.75 δ18O + 7.2 (R2 = 0.99). The average δ18O values of the samples ranged from − 16.27 to 0.45‰ while δD values varied from − 112.42 to 10.51‰ respectively.