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 Instrument:: HAI

 Partner:: PTB Uni-Braunschweig, FZ-Juelich
 PI:: Ebert, Krämer
 email:: volker.ebert@ptb.de, m.kraemer@fz-juelich.de
 tel:: 0531-592-3200, 02461-61-3238
 DesignOrganisation::
 DesiredPosition:: ApT-4
 DesiredCabinPosition:: 3
 ModificationNumber::
 AdditionalRequirements::

 Weight:: 67

 Type:: insitu

 Summary:: The Hygrometer for Atmospheric Investigations (HAI) is a new development for HALO instrumentation in cooperation of University Heidelberg, Forschungszentrum Jülich and KIT, supported by the HALO-SPP. It is based on tuneable diode laser spectroscopy and primarily designed for measurement of gas-phase water in an open-path cell and thus a complement to the total water measurement of FISH. The instrument is using two lasers at 1.4 µm and 2.6 µm in order provide a large sensitivity range for water measurements in the UTLS.

 Status:: 1