R. E. Hibbins
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View article: A Case Study of the Solar and Lunar Semidiurnal Tide Response to the 2013 Sudden Stratospheric Warming
A Case Study of the Solar and Lunar Semidiurnal Tide Response to the 2013 Sudden Stratospheric Warming Open
This study investigates the response of the semidiurnal tide (SDT) to the 2013 major sudden stratospheric warming (SSW) event using meteor radar wind observations and mechanistic tidal model simulations. In the model, the background atmosp…
View article: A case study of the solar and lunar semidiurnal tide response to the 2013 sudden stratospheric warming
A case study of the solar and lunar semidiurnal tide response to the 2013 sudden stratospheric warming Open
This study investigates the response of the semidiurnal tide (SDT) to the 2013 major sudden stratospheric warming (SSW) event using meteor radar wind observations and mechanistic tidal model simulations. In the model, the background atmosp…
View article: Summarizing the research of the MADEIRA project - Middle atmosphere dynamics: exploiting infrasound using a multidisciplinary approach at high latitudes
Summarizing the research of the MADEIRA project - Middle atmosphere dynamics: exploiting infrasound using a multidisciplinary approach at high latitudes Open
The MADEIRA project (Middle Atmosphere Dynamics: Exploiting Infrasound Using a Multidisciplinary Approach at High Latitudes) is a four-year basic research project finishing in the spring 2023, funded by the Research Council of Norway. …
View article: Atmospheric tomography using the Nordic Meteor Radar Cluster and Chilean Observation Network De Meteor Radars: network details and 3D-Var retrieval
Atmospheric tomography using the Nordic Meteor Radar Cluster and Chilean Observation Network De Meteor Radars: network details and 3D-Var retrieval Open
Ground-based remote sensing of atmospheric parameters is often limited to single station observations by vertical profiles at a certain geographic location. This is a limiting factor for investigating gravity wave dynamics as the spatial i…
View article: Comment on amt-2021-124
Comment on amt-2021-124 Open
Abstract. Ground-based remote sensing of atmospheric parameters is often limited to single station observations by vertical profiles at a certain geographic location. This is a limiting factor for investigating gravity wave dynamics as the…
View article: Reply on AC1
Reply on AC1 Open
Abstract. Ground-based remote sensing of atmospheric parameters is often limited to single station observations by vertical profiles at a certain geographic location. This is a limiting factor for investigating gravity wave dynamics as the…
View article: Comment on amt-2021-124: On vertical velocity estimates
Comment on amt-2021-124: On vertical velocity estimates Open
Abstract. Ground-based remote sensing of atmospheric parameters is often limited to single station observations by vertical profiles at a certain geographic location. This is a limiting factor for investigating gravity wave dynamics as the…
View article: Tidal Variations in the Mesosphere and Lower Thermosphere Before, During, and After the 2009 Sudden Stratospheric Warming
Tidal Variations in the Mesosphere and Lower Thermosphere Before, During, and After the 2009 Sudden Stratospheric Warming Open
This work presents a comprehensive evaluation of tides in the mesosphere and lower thermosphere (MLT) of the Whole Atmosphere Community Climate Model with thermosphere‐ionosphere eXtension (WACCMX) and data assimilation provided by the Dat…
View article: Climatological Westward‐Propagating Semidiurnal Tides and Their Composite Response to Sudden Stratospheric Warmings in SuperDARN and SD‐WACCM‐X
Climatological Westward‐Propagating Semidiurnal Tides and Their Composite Response to Sudden Stratospheric Warmings in SuperDARN and SD‐WACCM‐X Open
Using the Super Dual Auroral Radar Network observations (clustered around 60°N) and NCAR CESM2.0 extended Whole Atmosphere Community Climate Model nudged with reanalyzes, we examine the climatology of semidiurnal tides in meridional wind a…
View article: Migrating tide climatologies measured by a high-latitude array of SuperDARN HF radars
Migrating tide climatologies measured by a high-latitude array of SuperDARN HF radars Open
This study uses hourly meteor wind measurements from a longitudinal array of 10 high-latitude SuperDARN high-frequency (HF) radars to isolate the migrating diurnal, semidiurnal, and terdiurnal tides at mesosphere–lower-thermosphere (MLT) a…
View article: Migrating tide climatologies measured by a high-latitude array of SuperDARN HF-radars
Migrating tide climatologies measured by a high-latitude array of SuperDARN HF-radars Open
This study uses hourly meteor wind measurements from a longitudinal array of 10 high-latitude SuperDARN HF-radars to isolate the migrating diurnal, semidiurnal and terdiurnal tidal modes at Mesosphere-Lower-Thermosphere (MLT) heights. The …
View article: Semidiurnal tidal signatures in microbarom infrasound array measurements
Semidiurnal tidal signatures in microbarom infrasound array measurements Open
<p>Recent studies on infrasonic signatures related to atmospheric tides are mostly focused on stratospherically ducted infrasound or on tidal signatures in recorded infrasound signal power.</p><p>In the current work, we a…
View article: Wind estimates in the mesosphere - lower thermosphere retrieved from infrasound data
Wind estimates in the mesosphere - lower thermosphere retrieved from infrasound data Open
<p>We analyze dataset of infrasound observations from surface military explosions in northern Finland which occur yearly in August and September since 1988. The transient nature of these events allows for identification of returns re…
View article: Observations of migrating tides in the mid-latitude MLT using an array of SuperDARN HF-radars
Observations of migrating tides in the mid-latitude MLT using an array of SuperDARN HF-radars Open
<p>Solar thermal (migrating) atmospheric tides play an important role in shaping the day-to-day and seasonal variability of the Mesosphere-Lower-Thermosphere (MLT) region. Due the planetary scale of the migrating tides, observations …
View article: Modelled effects of temperature gradients and waves on the hydroxyl rotational distribution in ground-based airglow measurements
Modelled effects of temperature gradients and waves on the hydroxyl rotational distribution in ground-based airglow measurements Open
Spectroscopy of the hydroxyl (OH) airglow has been a commonly used way to remotely sense temperatures in the mesopause region for many decades. This technique relies on the OH rotational state populations to be thermalized through collisio…
View article: Airglow Derived Measurements of Q-Branch Transition Probabilities for Several Hydroxyl Meinel Bands
Airglow Derived Measurements of Q-Branch Transition Probabilities for Several Hydroxyl Meinel Bands Open
Spectroscopic measurements of the hydroxyl (OH) airglow emissions are often used to infer neutral temperatures near the mesopause. Correct Einstein coefficients for the various transitions in the OH airglow are needed to calculate accurate…
View article: Modelled Effects of Temperature Gradients and Waves on the Hydroxyl Rotational Distribution in Ground-Based Airglow Measurements
Modelled Effects of Temperature Gradients and Waves on the Hydroxyl Rotational Distribution in Ground-Based Airglow Measurements Open
Spectroscopy of the hydroxyl (OH) airglow has been a commonly used way to remotely sense temperatures in the mesopause region for many decades. This technique relies on the OH rotational state populations to be thermalised through collisio…
View article: Observation of Quasiperiodic Structures in the Hydroxyl Airglow on Scales Below 100 m
Observation of Quasiperiodic Structures in the Hydroxyl Airglow on Scales Below 100 m Open
Gravity waves are known to transport energy and momentum to the middle atmosphere. The breaking processes associated with divergence of fluxes of energy and momentum into the atmosphere occur on scales that cannot be resolved in models and…
View article: Toward an Improved Representation of Middle Atmospheric Dynamics Thanks to the ARISE Project
Toward an Improved Representation of Middle Atmospheric Dynamics Thanks to the ARISE Project Open
This paper reviews recent progress toward understanding the dynamics of the middle atmosphere in the framework of the Atmospheric Dynamics Research InfraStructure in Europe (ARISE) initiative. The middle atmosphere, integrating the stratos…
View article: Optimizing hydroxyl airglow retrievals from long-slit astronomical spectroscopic observations
Optimizing hydroxyl airglow retrievals from long-slit astronomical spectroscopic observations Open
Astronomical spectroscopic observations from ground-based telescopes contain background emission lines from the terrestrial atmosphere's airglow. In the near infrared, this background is composed mainly of emission from Meinel bands of hyd…
View article: Optimising hydroxyl airglow retrievals from long-slit astronomical spectroscopic observations
Optimising hydroxyl airglow retrievals from long-slit astronomical spectroscopic observations Open
Astronomical spectroscopic observations from ground-based telescopes contain background emission lines from the terrestrial atmosphere’s airglow. In the near infrared, this background is composed mainly of emission from Meinel bands of hyd…
View article: HF radar observations of a quasi‐biennial oscillation in midlatitude mesospheric winds
HF radar observations of a quasi‐biennial oscillation in midlatitude mesospheric winds Open
The equatorial quasi‐biennial oscillation (QBO) is known to be an important source of interannual variability in the middle‐ and high‐latitude stratosphere. The influence of the QBO on the stratospheric polar vortex in particular has been …
View article: Observational evidence for temporary planetary wave forcing of the MLT during fall equinox
Observational evidence for temporary planetary wave forcing of the MLT during fall equinox Open
We present direct observations of zonal wave numbers 1 and 2 planetary wave activity in the mesopause region derived from a longitudinal chain of high-latitude Northern Hemisphere (51-66$^{\circ}$N) Super Dual Auroral Radar Network radars.…
View article: QBO modulation of the mesopause gravity wave momentum flux over Tierra del Fuego
QBO modulation of the mesopause gravity wave momentum flux over Tierra del Fuego Open
The interannual variability of the mesosphere and lower thermosphere (MLT) gravity wave momentum flux over southern midlatitudes (53.7°S) has been studied using more than 7 years of meteor radar observations at Río Grande, Argentina. A mod…
View article: The impact of energetic electron precipitation on mesospheric hydroxyl during a year of solar minimum
The impact of energetic electron precipitation on mesospheric hydroxyl during a year of solar minimum Open
In 2008 a sequence of geomagnetic storms occurred triggered by high-speed solar wind streams from coronal holes. Improved estimates of precipitating fluxes of energetic electrons are derived from measurements on board the NOAA/POES 18 satel…