N. M. Pedatella
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View article: Linking Long-term Arctic Surface Variability and Changes in the Stratosphere, Mesosphere, and Lower Thermosphere
Linking Long-term Arctic Surface Variability and Changes in the Stratosphere, Mesosphere, and Lower Thermosphere Open
View article: Linking Long-term Arctic Surface Variability and Changes in the Stratosphere, Mesosphere, and Lower Thermosphere
Linking Long-term Arctic Surface Variability and Changes in the Stratosphere, Mesosphere, and Lower Thermosphere Open
View article: Signatures of Polar Vortex Weakening in the MLTI: A Review
Signatures of Polar Vortex Weakening in the MLTI: A Review Open
This paper is a collaborative effort that originated at the International Space Science Institute Workshop on “Physical links between Weather and Climate in Space and the Lower Atmosphere” held 22–26 January 2024. Many scientists attended …
View article: Impact of Terrestrial Weather on the Space Weather of the Ionosphere-Thermosphere: Initial Results from a NASA Living with a Star Focused Science Topic
Impact of Terrestrial Weather on the Space Weather of the Ionosphere-Thermosphere: Initial Results from a NASA Living with a Star Focused Science Topic Open
The ionosphere-thermosphere (IT) is a convergence point of energy and processes that interconnect Earth’s atmosphere with space. Processes generated by terrestrial weather in the lower atmosphere (i.e., troposphere and stratosphere, altitu…
View article: Impact of Increasing Greenhouse Gases on the Ionosphere and Thermosphere Response to a May 2024‐Like Geomagnetic Superstorm
Impact of Increasing Greenhouse Gases on the Ionosphere and Thermosphere Response to a May 2024‐Like Geomagnetic Superstorm Open
The Community Earth System Model (CESM) Whole Atmosphere Community Climate Model with thermosphere‐ionosphere eXtension (WACCM‐X) is used to investigate how the ionosphere‐thermosphere response to a May 2024‐like geomagnetic storm changes …
View article: The NCAR-TIEGCM Version 3.0
The NCAR-TIEGCM Version 3.0 Open
A new version of the US National Science Foundation National Center for Atmospheric Research (NSF NCAR) thermosphere-ionosphere-electrodynamics general circulation model (TIEGCM) has been developed and released. This paper describes the ch…
View article: Linking Arctic Variability and Changes in the Stratosphere, Mesosphere, and Lower Thermosphere
Linking Arctic Variability and Changes in the Stratosphere, Mesosphere, and Lower Thermosphere Open
View article: Behaviors of Interhemispheric Coupling in Different Boreal Winter Subseasons During Major SSWs
Behaviors of Interhemispheric Coupling in Different Boreal Winter Subseasons During Major SSWs Open
View article: Concurrent GOLD and SABER Observations of Thermosphere Composition and Temperature Responses to the April 23–24, 2023 Geomagnetic Storm
Concurrent GOLD and SABER Observations of Thermosphere Composition and Temperature Responses to the April 23–24, 2023 Geomagnetic Storm Open
The Global‐scale Observations of Limb and Disk (GOLD) and Sounding of the Atmosphere using Broadband Emission Radiometry (SABER) instruments were used to investigate the thermospheric composition and temperature responses to the geomagneti…
View article: Expanding the Horizons of Space Weather Forecasting through a Generic Framework: Insights from the JEDI Space Weather Data Assimilation Workshop
Expanding the Horizons of Space Weather Forecasting through a Generic Framework: Insights from the JEDI Space Weather Data Assimilation Workshop Open
View article: Nonlinear Interaction of the Lunar Tide M<sub>2</sub> and the Diurnal Variation of Electron Density in the Ionosphere
Nonlinear Interaction of the Lunar Tide M<sub>2</sub> and the Diurnal Variation of Electron Density in the Ionosphere Open
Ground‐based observations of time series of ionospheric electron density indicated the existence of spectral components at the periods of the lunar tidal constituents (25.82 hr) and (8.18 hr). It was unclear whether these variations are ex…
View article: Impact of Arctic and Antarctic Sudden Stratospheric Warmings on Thermospheric Composition
Impact of Arctic and Antarctic Sudden Stratospheric Warmings on Thermospheric Composition Open
Using the Global‐scale Observations of the Limb and Disk (GOLD) and the Global Ultraviolet Imager (GUVI), we examine the impact of sudden stratospheric warmings (SSWs) on the changes of thermospheric composition during the 2018–2019 and 20…
View article: The Semidiurnal Tidal Response of the Low Latitude Ionosphere to Northern Hemisphere Polar Vortex Strength (2020–2023) From COSMIC‐2 Global Ionospheric Specification
The Semidiurnal Tidal Response of the Low Latitude Ionosphere to Northern Hemisphere Polar Vortex Strength (2020–2023) From COSMIC‐2 Global Ionospheric Specification Open
This paper investigates the day‐to‐day global tidal variability in the ionosphere/thermosphere system due to fluctuations in the strength of the northern hemisphere stratospheric polar vortex. Using COSMIC‐2 (Constellation Observing System…
View article: Equinox Transitions of Thermosphere O/N<sub>2</sub> and Meridional Circulation in the Northern Hemisphere as Observed by NASA's GOLD and ICON Missions
Equinox Transitions of Thermosphere O/N<sub>2</sub> and Meridional Circulation in the Northern Hemisphere as Observed by NASA's GOLD and ICON Missions Open
Leveraging the unique perspective enabled by Global‐scale Observations of the Limb and Disk, we examined the characteristics of equinox transitions in the thermospheric column integrated ratio of atomic oxygen to molecular nitrogen (O/N 2 …
View article: Assessing the Impacts of Assimilating GOLD Disk O/N<sub>2</sub> Observations on the Thermosphere‐Ionosphere System
Assessing the Impacts of Assimilating GOLD Disk O/N<sub>2</sub> Observations on the Thermosphere‐Ionosphere System Open
The Global‐scale Observations of Limb and Disk (GOLD) imagers scan the Earth's Thermosphere‐Ionosphere (TI) in the far ultraviolet wavelengths. Measurements from GOLD daylit spectrum are used to retrieve the column integrated atomic oxygen…
View article: Modeling the Post‐Midnight Equatorial Plasma Bubbles With SAMI3/SD‐WACCM‐X: Large‐Scale Wave Structure
Modeling the Post‐Midnight Equatorial Plasma Bubbles With SAMI3/SD‐WACCM‐X: Large‐Scale Wave Structure Open
This study investigates the relative significance of gravity wave and gravity dynamo effects in large‐scale wave structure (LSWS) development using the coupled Sami3 is Also a Model of the Ionosphere (SAMI3) and Specified Dynamics Whole At…
View article: On the Abnormally Strong Westward Phase of the Mesospheric Semiannual Oscillation at Low Latitudes During March Equinox 2023
On the Abnormally Strong Westward Phase of the Mesospheric Semiannual Oscillation at Low Latitudes During March Equinox 2023 Open
Different meteor radars at low latitudes observed abnormally strong westward mesospheric winds around the March Equinox of 2023, that is, during the first phase of the Mesospheric Semiannual Oscillation. This event was the strongest of at …
View article: Impact of the Polar Vortex on Sub‐Seasonal O/N<sub>2</sub> Variability in the Lower Thermosphere Using GOLD and WACCM‐X
Impact of the Polar Vortex on Sub‐Seasonal O/N<sub>2</sub> Variability in the Lower Thermosphere Using GOLD and WACCM‐X Open
We provide observational evidence that the stability of the stratospheric Polar vortex (PV) is a significant driver of sub‐seasonal variability in the thermosphere during geomagnetically quiet times when the PV is anomalously strong or wea…
View article: GOLD plasma bubble observations comparison with geolocation of plasma irregularities by back propagation of the high-rate FORMOSA7/COSMIC 2 scintillation data
GOLD plasma bubble observations comparison with geolocation of plasma irregularities by back propagation of the high-rate FORMOSA7/COSMIC 2 scintillation data Open
Using the high-rate phase and amplitude scintillation data from FORMOSA7/COSMIC two mission and back-propagation method, we geolocate plasma irregularities that cause scintillations. The results of geolocation are compared with the NASA GO…
View article: Impact of Arctic and Antarctic Sudden Stratospheric Warmings on Thermospheric Composition
Impact of Arctic and Antarctic Sudden Stratospheric Warmings on Thermospheric Composition Open
Using the Global-scale Observations of the Limb and Disk (GOLD) and the Global Ultraviolet Imager (GUVI), we examine the impact of sudden stratospheric warmings (SSWs) on the changes of thermospheric composition during the 2018-2019 and 20…
View article: Impacts of the Sudden Stratospheric Warming on Equatorial Plasma Bubbles: Suppression of EPBs and Quasi-6-Day Oscillations
Impacts of the Sudden Stratospheric Warming on Equatorial Plasma Bubbles: Suppression of EPBs and Quasi-6-Day Oscillations Open
This study investigates the day-to-day variability of equatorial plasma bubbles (EPBs) over the Atlantic–American region and their connections to atmospheric planetary waves during the sudden stratospheric warming (SSW) event of 2021. The …
View article: Evidence for SSW Triggered Q6DW‐Tide and Q6DW‐Gravity Wave Interactions Observed by Meteor Radars at 30°S
Evidence for SSW Triggered Q6DW‐Tide and Q6DW‐Gravity Wave Interactions Observed by Meteor Radars at 30°S Open
An exceptionally strong westward propagating quasi‐6‐day wave (Q6DW) with zonal wavenumber 1 in connection with the rare 2019 Southern Hemispheric Sudden Stratospheric Warming (SSW) is observed by two meteor radars at 30°S and is found to …
View article: The X‐Pattern Merging of the Equatorial Ionization Anomaly Crests During Geomagnetic Quiet Time
The X‐Pattern Merging of the Equatorial Ionization Anomaly Crests During Geomagnetic Quiet Time Open
A unique phenomenon—A geomagnetically quiet time merging of Equatorial Ionization Anomaly (EIA) crests, leading to an X‐pattern (EIA‐X) around the magnetic equator—has been observed in the night‐time ionospheric measurements by the Global‐…
View article: Quasi 6-Day Planetary Wave Oscillations in Equatorial Plasma Irregularities
Quasi 6-Day Planetary Wave Oscillations in Equatorial Plasma Irregularities Open
The influence of atmospheric planetary waves on the occurrence of irregularities in the low latitude ionosphere is investigated using Whole Atmosphere Community Climate Model with thermosphere-ionosphere eXtension (WACCM-X) simulations and…
View article: Effects of Forcing Uncertainties on the Thermospheric and Ionospheric Ensemble-based data assimilation.
Effects of Forcing Uncertainties on the Thermospheric and Ionospheric Ensemble-based data assimilation. Open
Ensemble Data assimilation is a state-of-the-art method that can combine the observation information into a numerical model and further improve the performance of numerical weather prediction of the thermosphere and ionosphere. The t…
View article: Modeling Equatorial Plasma Bubbles with SAMI3/SD-WACCM-X: Large-Scale Wave Structure
Modeling Equatorial Plasma Bubbles with SAMI3/SD-WACCM-X: Large-Scale Wave Structure Open
Large-scale wave structure (LSWS) in the bottomside F layer is pivotal in developing equatorial plasma bubbles (EPBs), potentially serving as a precursor of EPBs. Gravity waves, hypothesized to contribute through the wind dynamo mechanism,…
View article: Higher-order Tides in the Variation of Post-sunset Meridional Winds and, consequently, OI 630.0 nm nightglow emissions over Low-latitudes
Higher-order Tides in the Variation of Post-sunset Meridional Winds and, consequently, OI 630.0 nm nightglow emissions over Low-latitudes Open
Airglow emissions act as a tracer of the altitudinal region of 100 km width centred around 250 km. Various dynamical processes such as neutral, electrodynamics, and atmospheric waves modulate the atmospheric parameters, such as temperature…
View article: Interannual Variability of Winds in the Antarctic Mesosphere and Lower Thermosphere Over Rothera (67°S, 68°W) During 2005–2021 in Meteor Radar Observations and WACCM‐X
Interannual Variability of Winds in the Antarctic Mesosphere and Lower Thermosphere Over Rothera (67°S, 68°W) During 2005–2021 in Meteor Radar Observations and WACCM‐X Open
The mesosphere and lower thermosphere (MLT) plays a critical role in linking the middle and upper atmosphere. However, many General Circulation Models do not model the MLT and those that do remain poorly constrained. We use long‐term meteo…
View article: Medium-scale traveling ionospheric disturbances created by primary gravity waves generated by a winter storm
Medium-scale traveling ionospheric disturbances created by primary gravity waves generated by a winter storm Open
This study explores the meteorological source and vertical propagation of gravity waves (GWs) that drive daytime traveling ionospheric disturbances (TIDs), using the specified dynamics version of the SD-WACCM-X (Whole Atmosphere Community …
View article: Climatology of mesosphere and lower thermosphere diurnal tides over Jicamarca (12$$^\circ$$S, 77$$^\circ$$W): observations and simulations
Climatology of mesosphere and lower thermosphere diurnal tides over Jicamarca (12$$^\circ$$S, 77$$^\circ$$W): observations and simulations Open
This work shows a 3-year climatology of the horizontal components of the solar diurnal tide, obtained from wind measurements made by a multistatic specular meteor radar (SIMONe) located in Jicamarca, Peru (12 $$^\circ$$ S, 77 $$^\circ$$…