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Quiet time ionospheric variability over Arecibo during sudden stratospheric warming events
(American Geophysical Union, 2010-09-11)
We present observations of the F‐region ionosphere over Arecibo, Puerto Rico (18.34°N, 66.75°W), during the January–February 2008 and January–February 2009 sudden stratospheric warming (SSW) events. For the first period ...
The 2019 southern hemisphere stratospheric polar vortex weakening and its impacts
(Amer Meteorological, 2021)
This study offers an overview of the low-frequency (i.e., monthly to seasonal) evolution, dynamics, predictability, and surface impacts of a rare Southern Hemisphere (SH) stratospheric warming that occurred in austral ...
Ionospheric response to the 2009 sudden stratospheric warming over the equatorial, low, and middle latitudes in the South American sector
(American Geophysical Union, 2015-09)
The present study investigates the ionospheric total electron content (TEC) and F-layer response in the Southern Hemisphere equatorial, low, and middle latitudes due to major sudden stratospheric warming (SSW) event, which ...
Equatorial ionospheric electrodynamic perturbations during Southern Hemisphere stratospheric warming events
(American Geophysical Union, 2013-03)
We use ground-based and satellite measurements to examine, for the first time, the characteristics of equatorial electrodynamic perturbations measured during the 2002 major and 2010 minor Southern Hemisphere sudden ...
Stratospheric and mesospheric data assimilation: the role of middle atmospheric dynamics
(Springer, 2016)
The middle atmosphere refers to the stratosphere and mesosphere and features dynamics and circulationsthat are fundamentally different from those of the troposphere. The large-scale meridional circulations inthe middle ...
SOUTHTRAC-GW: An Airborne Field Campaign to Explore Gravity Wave Dynamics at the World’s Strongest Hotspot
(American Meteorological Society, 2021-05)
The southern part of South America and the Antarctic peninsula are known as the world's strongest hotspot region of stratospheric gravity wave (GW) activity. Large tropospheric winds are deflected by the Andes and the ...
Evaluation of antarctic ozone profiles derived from omps‑lp by using balloon‑borne ozonesondes
(Nature Research, Germany, 2021)
Predicting radiative forcing due to Antarctic stratospheric ozone recovery requires detecting changes in the ozone vertical distribution. In this endeavor, the Limb Profiler of the Ozone Mapping and Profiler Suite (OMPS-LP), ...