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SUMMARY:Constraining the representation of the atmospheric hydrological cy
 cle in General Circulation Models using water isotopes and what would be n
 eeded to directly compare ice core water isotope records with model simula
 tions - Hans Christian\, University of Bergen
DTSTART:20181204T143000Z
DTEND:20181204T153000Z
UID:TALK111013@talks.cam.ac.uk
CONTACT:Dr Maria Vittoria Guarino
DESCRIPTION:Water isotopes in the atmospheric hydrological cycle as rain\,
  snow and water vapor offers a direct proxy for the physical processes con
 trolling the water cycle. This is due to the individual isotopes’ molecu
 lar structure\, which offers a fingerprint of conditions during phase chan
 ge\, such as during evaporation from the ocean and condensation in the clo
 uds. Water vapor isotopes can now be measured continuously in the atmosphe
 re thanks to the advent of commercially available laser spectrometers. Thi
 s has given an exciting possibility to benchmark the treatment of the hydr
 ological cycle in General Circulation Models equipped with water isotopes.
  Furthermore\, with the possibility to simulate the isotopes in the hydrol
 ogical cycle we can also use General Circulation Models to interpret past 
 variations in the hydrological cycle by combining simulations with ice cor
 e isotope records.\nIn my seminar I will present the latest research on us
 ing water vapor isotopes to benchmark isotope-enabled General Circulation 
 Models and the possibilities and challenges for merging ice core water iso
 tope records with simulations using isotope-enabled General Circulation Mo
 dels.\n
LOCATION:British Antarctic Survey\, Seminar Room 187
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