_:genid1 "Free to use with credit to the original figure source."^^ . "carve-ngee-arctic-campaigns" . "3.21"^^ . "CARVE and NGEE Arctic campaigns"^^ . "Main photo and left inset: J. Bryan Curtis, Lawrence Berkeley National Laboratory. Right insets: Stan Wullschleger, Oak Ridge National Research Laboratory"^^ . "The NASA CARVE and DOE NGEE-Arctic projects are combining airborne and ground-based campaigns to understand the importance of natural emissions from the Alaskan tundra. (Source: J. B. Curtis, LBNL [main photo and left inset]; S. Wullschleger, ORNL [right insets])"^^ . _:genid1 . . . . . . _:genid2 . _:genid2 . _:genid2 . _:genid2 . _:genid2 . _:genid3 . _:genid3 . _:genid3 . _:genid3 . _:genid3 .