While measurements of the isotopic composition of water in snow snow and ice have long been used in climate studies, optical spectroscopic techniques now allow measurements in water vapor directly and open up their use for understanding atmospheric processes. We review recent satellite and in-situ observations, describe new measurement capabilities, and show modeling results that suggest that water isotopic measurements can aid in diagnosing many aspects of the atmospheric water cycle. Science questions that can be informed by water isotopic measurements range from the mid-troposphere to the tropical tropopause and include study of moisture transport and mixing, convective detrainment, cirrus origin and persistence, and the microphysics of ice nucleation and growth. Transport studies must occur in-situ, but microphysics studies can be informed by laboratory studies, and KIT is currently leading studies of isotopic tracers in cold cirrus through the ISOCLOUD campaign at the AIDA chamber.

Diese Veranstaltung ist Teil der Reihe Karlsruher Meteorologisches Kolloquium

Referent/in
Prof. Dr. Elisabeth Moyer

University of Chicago
Department of Geophysical Science

Veranstalter
Institut für Meteorologie und Klimaforschung
Karlsruher Institut für Technologie (KIT)
Hermann von Helmholtz Platz 1
76344 Eggenstein-Leopoldshafen
Tel: 0721-608-0
E-Mail: sekretariat ∂does-not-exist.imk-asf kit edu

Zielgruppe
Wissenschaftliche Mitarbeitende