Modulation of the Precipitation Isotopes by the Dynamic and Thermodynamic Variables of the Atmosphere in Southern Parts of India

Abstract

The isotopic composition of precipitation is known to be a function of various ocean-atmospheric parameters, such as temperature, rainfall, humidity, sea surface condition, etc.

17O‐Excess in Tropical Cyclones Reflects Local Rain Re‐Evaporation More Than Moisture Source Conditions

“…We recognize that RH LT and precipitation rate are not independent variables because air is generally moister during heavier rainfall (Figure 2), which may cause biases in the predicting power of the variables (Le Duy et al, 2018). In order to decouple the effects of RH LT and precipitation rate, we perform a partial correlation analysis where one of RH LT and precipitation rate is varied while the other is kept constant (Fousiya et al, 2022;Kendall & Stuart, 1976). The partial correlation analysis shows that when the effect of precipitation rate is removed, the correlation between 17 O-excess and RH LT becomes insignificant (Table 1).…”