The Next Generation AVIRIS (AVIRIS-NG) has been conducting an airborne survey of methane sources in California.  Last week there was a coordinated flight with the Scientific Aviation Mooney aircraft (Tail Number N2123X) over sites in SF Bay Area.   The Mooney aircraft has in situ methane gas analyzers and performed low level spirals above methane sources, while the King Air flew at 10,000 ft with the AVIRIS-NG to remotely sense the sources areas.