A new dataset from the Atmospheric Carbon and Transport - America (ACT-America) airborne campaign provides profile-based estimates of the planetary boundary layer (PBL) height in meters above mean sea level, where the height of the first maximum in the potential temperature gradient was used to mark the PBL top height. The meteorological measurements were acquired during ascending or descending vertical profile flight segments over the central and eastern United States seasonally from 2016 to 2019 from two aircraft platforms, the NASA Langley Beechcraft B200 King Air and the NASA Goddard Space Flight Center's C-130H Hercules.
The ACT-America project is a NASA Earth Venture Suborbital-2 mission to study the transport and fluxes of atmospheric carbon dioxide and methane across three regions in the eastern United States. Each flight campaign will measure how weather systems transport these greenhouse gases. Ground-based measurements of greenhouse gases were also-collected. Better estimates of greenhouse gas sources and sinks are needed for climate management and for prediction of future climate. See all ORNL DAAC data from ACT-America.
Data Citation: Pal, S. 2019. ACT-America: Profile-based Planetary Boundary Layer Heights, Eastern USA. ORNL DAAC, Oak Ridge, Tennessee, USA. https://doi.org/10.3334/ORNLDAAC/1706
Data Center: ORNL DAAC