Stable isotopes of oxygen and hydrogen in the Truckee River–Pyramid Lake surface‐water system. 2. A predictive model of δ18O and 182H in Pyramid Lake

S. W. Hostetler; L. V. Benson

doi:10.4319/lo.1994.39.2.0356

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Stable isotopes of oxygen and hydrogen in the Truckee River–Pyramid Lake surface‐water system. 2. A predictive model of δ18O and 182H in Pyramid Lake

S. W. Hostetler·L. V. Benson

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Abstract

A physically based model of variations in δ 18 O and δ 2 H in Pyramid Lake is presented. For inputs, the model uses measurements of liquid water inflows and outflows and their associated isotopic compositions and a set of meteorological data (radiative fluxes, air temperature, relative humidity, and windspeed). The model simulates change of lake volume, thermal and isotopic stratification, evaporation, and the isotopic composition of evaporation. A validation of the model for 1987–1989 and 1991 indicates that it can reproduce measured intra‐ and interannual variations of δ 18 O and δ 2 H. Three applications of the model demonstrate its ability to simulate longer term responses of δ 18 O to change in the hydrologic balance and hydrologic characteristics (opening and closing) of the lake.

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Limnology and Oceanography Article

Source-reported bounding extent: 39.8401771327549° to 40.212440718286466° latitude; -119.7784423828125° to -119.3939208984375° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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S. W. Hostetler, L. V. Benson. 2003-12-22. Stable isotopes of oxygen and hydrogen in the Truckee River–Pyramid Lake surface‐water system. 2. A predictive model of δ18O and 182H in Pyramid Lake. https://doi.org/10.4319/lo.1994.39.2.0356

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