A. Mapping C0₂ distribution across the globe

Britton Stephens, NCAR scientist and HIPPO co-principal investigator, describes the field project’s flight path and how the flights will help researchers determine carbon dioxide's influence in different regions of the globe.

(©UCAR, video by Carlye Calvin, animation by Steve Deyo.) News media terms of use*

C. HIPPO’s flight path from the Arctic to the Antarctic across the Pacific Ocean

During the 20-day mission, the NSF/NCAR Gulfstream V research aircraft will fly at altitudes ranging from 1,000 to 47,000 feet as it samples atmospheric greenhouse gases. The jet aircraft, called HIAPER, flies out of Boulder, Colorado, to the Arctic and across the Pacific Ocean to Antarctica via Anchorage, Alaska; Honolulu, Hawaii; Pago Pago, American Samoa; Christchurch, New Zealand; Tahiti, French Polynesia; and Easter Island, Chile.

(©UCAR, animation by Steve Deyo.) News media terms of use*

E. Britton Stephens

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Britton Stephens, NCAR Scientist and HIPPO co-principal investigator.(©UCAR, photo by Carlye Calvin.) News media terms of use*

G. A flying environmental laboratory

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The HIPPO missions rely on a specially equipped Gulfstream V aircraft known as HIAPER (High-performance Instrumented Airborne Platform for Environmental Research). HIAPER is owned by the National Science Foundation and operated by the National Center for Atmospheric Research. Specialized instruments for measuring atmospheric gases are mounted in pods under the wings, on the mainframe of the aircraft, and inside the cabin. (©UCAR, photo by Carlye Calvin.) News media terms of use*

I. Flying over the Arctic

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This photo of the Arctic was taken from the HIAPER aircraft during the HIPPO mission. (©UCAR.) News media terms of use*