A physically based model of variations in δ18O and δ2H 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 δ18O and δ2H. Three applications of the model demonstrate its ability to simulate longer term responses of δ18O to change in the hydrologic balance and hydrologic characteristics (opening and closing) of the lake.
|Publication Subtype||Journal Article|
|Title||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|
|Series title||Limnology and Oceanography|
|Publisher||Association for the Sciences of Limnology and Oceanography|
|Contributing office(s)||Northern Rocky Mountain Science Center|
|Other Geospatial||Pyramid Lake|
|Google Analytic Metrics||Metrics page|