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RISUpper-Tropospheric Low Richardson Number in Tropical Cyclones: Sensitivity to Cyclone Intensity and the Diurnal Cycle
Publisher: American Meteorological Society
Abstract: igh-vertical-resolution rawinsondes were used to document the existence of low?bulk Richardson number (Rb) layers in tropical cyclones. The largest frequency of low Rb existed in the inner 200 km at the 13.5-km level. This ...
Tropopause Evolution in a Rapidly Intensifying Tropical Cyclone: A Static Stability Budget Analysis in an Idealized Axisymmetric Framework
Publisher: American Meteorological Society
Abstract: Upper-level static stability (N2) variations can influence the evolution of the transverse circulation and potential vorticity in intensifying tropical cyclones (TCs). This paper examines these variations during the rapid ...
Dramatic Inner-Core Tropopause Variability during the Rapid Intensification of Hurricane Patricia (2015)
Publisher: American Meteorological Society
Abstract: AbstractDropsondes with horizontal spacing as small as 4 km were released from the stratosphere in rapidly intensifying Hurricane Patricia (2015) during the Office of Naval Research Tropical Cyclone Intensity experiment. ...
Low Richardson Number in the Tropical Cyclone Outflow Layer
Publisher: American Meteorological Society
Abstract: ropsondes from the NOAA G-IV aircraft were used to examine the presence of low bulk Richardson numbers RB in tropical cyclones. At least one 400-m layer above z = 7.5 km exhibited RB < 1 in 96% of the sondes and RB ≤ 0.25 ...
Observation of the Tropical Cyclone Diurnal Cycle Using Hyperspectral Infrared Satellite Sounding Retrievals
Publisher: American Meteorological Society
A View of Tropical Cyclones from Above: The Tropical Cyclone Intensity (TCI) Experiment
Publisher: American Meteorological Society
Abstract: gh-resolution observations of Hurricanes Patricia, Joaquin and Marty in 2015 provide new insight into tropical cyclone structure and intensity change as part of the Tropical Cyclone Intensity field program.