ISOTOPIC ANALYSIS OF A CATCHMENT IN MĀNOA, HAWAIʻI
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2024
Authors
Koeroessy, Rebecca
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Exploring the isotopic weather dynamics within the Mānoa catchment of Hawaiʻi reveals insights into the region’s hydrological processes and atmospheric-water interactions through isotopic analysis of rainwater and streamwater. This study uses δ²H and δ18O isotopes as natural tracers, showing the seasonal fluctuations and underlying mechanisms governing precipitation and steam flow from February to December 2023. Seasonal isotopic patterns are clearly defined, reflecting the direct influence of local climatic conditions on water sources. This research emphasizes the variable isotopic signatures of precipitation, which underscore the impact of shifting weather patterns. Anomalies were detected, specially marked isotopic enrichment in June’s stream water, and signal deviations possibly tied to altered hydrological pathways, such as increased evaporation or modified groundwater influxes. Here, one can see the interplay between rainwater characteristics and streamflow dynamics, but it also furnishes critical insights into the nuanced interplay of tropical island hydrology.
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Koeroessy, Rebecca
Koeroessy, Rebecca
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