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A description of the air intake valve used to collect air samples while in flight.

This is an external inlet called a HIML that we use on the aircraft. There are 8 locations on the airplane that we can use, there are 2 lower and 6 upper. And in this case, it will mount to this plate here and extend down like this. This allows us to bring airflow into the airplane for sampling in the aircraft.


HIPPO is a landmark study for many reasons, not the least of which is it is the first time scientists have systematically mapped global distribution of carbon dioxide and other greenhouse gases in the atmosphere, covering the full troposphere in all seasons and multiple years.

  • HIPPO I :: 8 January-30 January 2009
  • HIPPO II :: 31 October-22 November 2009
  • HIPPO III :: 24 March-16 April 2010
  • HIPPO IV :: 14 June-11 July 2011
  • HIPPO V :: 9 August-9 September 2011