HIBAL Hydrologic Isotopic Balance Model for Paleolake Systems
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               World Data Center for Paleoclimatology, Boulder
                                  and
                     NOAA Paleoclimatology Program
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NOTE: PLEASE CITE CONTRIBUTORS WHEN USING THIS DATA!!!!!

NAME OF DATA SET: HIBAL Hydrologic Isotopic Balance Model for Paleolake Systems

LAST UPDATE: 8/2002 (Original Receipt by WDC Paleo)

CONTRIBUTOR: Larry Benson, United States Geological Survey

IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2002-054

SUGGESTED DATA CITATION: Benson, L. and F. Paillet, 2002,
HIBAL Hydrologic Isotopic Balance Model for Paleolake Systems,
IGBP PAGES/World Data Center for Paleoclimatology 
Data Contribution Series # 2002-054.
NOAA/NGDC Paleoclimatology Program, Boulder CO, USA.

ORIGINAL REFERENCE: Benson, L. and F. Paillet, 2002, 
HIBAL: a hydrologic-isotopic-balance model for 
application to paleolake systems.
Quaternary Science Reviews, Vol. 21, Issue 12-13, July 2002, pp. 1521-1539.


GEOGRAPHIC REGION: Pyramid Lake, Nevada with global applications

PERIOD OF RECORD: Holocene

DESCRIPTION: 
Benson and Paillet, 2002, HIBAL Hydrologic Isotopic Balance Model for Paleolake Systems

ABSTRACT:
A simple hydrologic-isotopic-balance (HIBAL) model for application to paleolake 
d18O records is presented. Inputs to the model include discharge, on-lake precipitation,
evaporation, and the d18O values of these fluid fluxes. Monthly values of climatic 
parameters that govern the fractionation of d18O and d16O during evaporation have been 
extracted from historical data sets and held constant in the model. The ability of the 
model to simulate changes in the hydrologic balance and the d18O evolution of the 
mixed layer has been demonstrated using measured data from Pyramid Lake, Nevada. 
Simulations of the response in d18O to step- and periodic-function changes in fluid 
inputs indicate that the hydrologic balance and d18O values lag climate change. 
Input of reconstructed river discharges and their d18O values to Pyramid and 
Walker lakes indicates that minima and maxima in simulated d18O records correspond to 
minima and maxima in the reconstructed volume records and that the overall shape of the 
volume and d18O records is similar. The model was also used in a simulation of 
abrupt oscillations in the d18O values of paleo-Owens Lake, California.