Observations from 2 optical ground stations and 3 MF radars at high and mid-latitudes have been combined to describe "springtime transitions" in atomic oxygen and the mesopause wind fields and waves for eight years (1991-1998). The typical signature in the Stockholm (60degreesN, 20degreesE) OI 558 nm 'green-line' emission involves a rapid (circa) 2-days rise in the nighttime value by factors of 2 or so, with a subsequent decrease by factors of 3-10. There is considerable inter-annual variability in these green-line emissions, and also the hydroxyl airglow (intensities and temperatures) at Bear Lake Observatory (Utah, 42degreesN, 115degreesW), but the 6-8 year means do show a characteristic airglow "springtime transition" (AST) near the end ...
From April, 1995 to January, 1996 a nightglow imager and an airglow photometer were colocated near A...
International audienceAirglow observations with a Spectral Airglow Temperature Imager (SATI), instal...
In the middle atmosphere, spring transition is the time period where the zonal circulation reverses ...
Airglow emission observations by the wind imaging interferometer (WINDII) on the Upper Atmosphere Re...
International audienceObservations from three optical ground stations and the wind imaging interfero...
Using ground-based measurements of the hydroxyl (OH) Meinel (3,1) band nightglow near 1500 nm, night...
Airglow emission and temperature observations by the wind imaging interferometer (WINDII) on the upp...
International audienceThe spring of 1997 has represented a stable period of operation for the joint ...
In the middle atmosphere, spring transition is the time period where the zonal circulation reverses ...
The 13th Symposium on Polar Science/Interdisciplinary sessions [IW] Whole atmosphere, Fri. 18 Nov
Abstract In the middle atmosphere, spring transition is the time period where the zonal circulation...
The upper mesosphere lower thermosphere region is well known for enhanced gravity wave breaking. Air...
The hydroxyl (OH) rotational temperature and band emission rate have been derived using year-round, ...
In January and February 2016, the OH airglow camera system FAIM (Fast Airglow Imager) measured durin...
Internal waves and atmospheric tides, which propagate into the upper mesosphere and lower thermosphe...
From April, 1995 to January, 1996 a nightglow imager and an airglow photometer were colocated near A...
International audienceAirglow observations with a Spectral Airglow Temperature Imager (SATI), instal...
In the middle atmosphere, spring transition is the time period where the zonal circulation reverses ...
Airglow emission observations by the wind imaging interferometer (WINDII) on the Upper Atmosphere Re...
International audienceObservations from three optical ground stations and the wind imaging interfero...
Using ground-based measurements of the hydroxyl (OH) Meinel (3,1) band nightglow near 1500 nm, night...
Airglow emission and temperature observations by the wind imaging interferometer (WINDII) on the upp...
International audienceThe spring of 1997 has represented a stable period of operation for the joint ...
In the middle atmosphere, spring transition is the time period where the zonal circulation reverses ...
The 13th Symposium on Polar Science/Interdisciplinary sessions [IW] Whole atmosphere, Fri. 18 Nov
Abstract In the middle atmosphere, spring transition is the time period where the zonal circulation...
The upper mesosphere lower thermosphere region is well known for enhanced gravity wave breaking. Air...
The hydroxyl (OH) rotational temperature and band emission rate have been derived using year-round, ...
In January and February 2016, the OH airglow camera system FAIM (Fast Airglow Imager) measured durin...
Internal waves and atmospheric tides, which propagate into the upper mesosphere and lower thermosphe...
From April, 1995 to January, 1996 a nightglow imager and an airglow photometer were colocated near A...
International audienceAirglow observations with a Spectral Airglow Temperature Imager (SATI), instal...
In the middle atmosphere, spring transition is the time period where the zonal circulation reverses ...