Surface winds in a Himalayan valley are found to vary daily and seasonally due to factors including pressure gradient, advection, turbulent vertical mixing, and the presence of glaciers.
Journal of Geophysical Research: Atmospheres
How Brown Carbon and Coatings on Black Carbon Affect Absorption
While ambient black carbon absorption is shown largely independent of coatings, distinct types of atmospheric brown carbon coexist, deriving from primary emissions and secondary processing.
Observations Show Gravity Waves Above Antarctica Dance in Winter
Year-round observations show gravity waves above Antarctica exhibit seasonal patterns that peak in winter, which could help researchers trace the source of this mysterious phenomenon.
Managing Uncertainties in Climate Engineering
Control theory and climate engineering meet in a new special issue of JGR: Atmospheres.
Improving Retrievals for Partially Cloudy Pixels
Cloud retrievals for partly cloudy pixels might be able to be improved by using high-resolution samples in a visible to near-infrared band, which many satellite sensors offer.
What Makes a Terrestrial Gamma-Ray Flash in Thunderclouds?
Two lightning flashes were observed in the same location: One produced a bright gamma-ray flash with about 1000 counts per millisecond, but the other did not.
Greenhouse Gas Inventories Underestimate Methane Emissions
A new study in the Baltimore-Washington metropolitan area reveals prior estimates may significantly underrepresent methane emissions, particularly from landfills and natural gas systems.
Retrieving Tropospheric Ozone from Ground-based Spectroscopy
A new technique can retrieve the profile of ozone from surface to tropopause by MAX-DOS ground-based measurements.
Dropsondes Reveal Atmospheric Boundary Layers Over Antarctic
636 high-resolution dropsondes reveal four types of atmospheric boundary layer over the Antarctic, including well-mixed and convective types.
Polarization Measurements Probe the Physics of Lightning
A new measurement capability can detect the polarization of the radio frequency wave of lightning sources, which reveals different forms of lightning breakdown processes.