First common volume ground‐based and space measurements of the mesospheric front in noctilucent clouds

Dalin, Peter; Connors, Martin; Schofield, Ian; Dubietis, A.; Pertsev, N. N.; Perminov, V. I.; Zalcik, Mark; Zadorozhny, A. M.; McEwan, Tom; McEachran, I.; Grønne, Jesper; Hansen, O.; Andersen, Henrik L.; Frandsen, S.; Melnikov, D.V.; Romejko, V.; Grigoryeva, I. G.

doi:10.1002/2013gl058553

Cited by 21 publications

(30 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2009Thurairajah et al, 2012]. Fronts structures have also been observed in NLCs using ground-based images [Dubietis et al, 2011;Dalin et al, 2013].…”

Section: Introductionmentioning

confidence: 86%

“…Other than the known Type I, II, and IV types (i.e., Veils, Bands, and Whirls) of NLCs [ Gadsden and Parviainen , ], structures such as “Voids,” “Ice Rings,” “Fronts,” and “Vortex‐like structures” have also been identified in these space‐based images [ Rusch et al ., ; Thurairajah et al ., ]. Fronts structures have also been observed in NLCs using ground‐based images [ Dubietis et al ., ; Dalin et al ., ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Concentric gravity waves in polar mesospheric clouds from the Cloud Imaging and Particle Size experiment

et al. 2014

View full text Add to dashboard Cite

Five concentric atmospheric gravity wave (AGW) events have been identified in Polar MesosphericCloud (PMC) images of the summer mesopause region (~82-84 km) made by the Cloud Imaging and Particle Size (CIPS) instrument on board the Aeronomy of Ice in the Mesosphere satellite during the Northern Hemisphere 2007 and 2009 PMC seasons. The AGWs modulate the PMC albedo, ice water content, and particle size, creating concentric ring patterns. On only one occasion (13 July 2007), the concentric AGWs in PMCs were aligned with AGWs with similar shapes observed in 4.3 μm radiance in the lower stratosphere, as measured by Atmospheric Infrared Sounder (AIRS). Coincident AIRS and Infrared Atmospheric Sounding Interferometer nadir measurements of 8.1 μm radiance reveal a region of deep convection in the troposphere close to the estimated centers of the AGWs in the stratosphere, strongly suggesting that convection is the wave source. The AGWs in CIPS on 13 July 2007 were~1000 km away from the observed deep convection. Three other concentric AGWs in PMCs were 500-1000 km away from deep convection in the troposphere, while no convection was observed related to the wave on 29 July 2009. We perform a 2-D ray tracing study for the AGW event on 13 July 2007. The calculated propagation distance is much shorter than the distance between the AGWs in PMCs and the observed convection. The 2-D ray tracing study indicates that the AGWs in PMCs and in the stratosphere are probably excited by different tropospheric convective systems.

show abstract

“…2009Thurairajah et al, 2012]. Fronts structures have also been observed in NLCs using ground-based images [Dubietis et al, 2011;Dalin et al, 2013].…”

Section: Introductionmentioning

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Concentric gravity waves in polar mesospheric clouds from the Cloud Imaging and Particle Size experiment

et al. 2014

View full text Add to dashboard Cite

show abstract

“…Second, strong temporal and spatial variability exists in the vertical temperature profile (with short‐term variability primarily due to small‐scale gravity waves and tides; e.g., see Chen et al, ; Dalin et al, ; Fritts & Alexander, ; Kutepov et al, ; Lu, Chen, et al, ; Lu, Chu, et al, ; Lu et al, ; Lübken et al, ; Mertens et al, ; Rapp et al, ; Stevens et al, ; Zhao et al, ): Unless the satellite and lidar instruments are perfectly collocated, there are likely to be substantial differences in the resulting temperature profiles as a result of this natural variability. Figure illustrates the nature of the short‐term variability in the vertical temperature profile, with all available nighttime profiles at the Arecibo lidar low‐latitude location shown for 19 December 2003.…”

Section: Collocation With Available Ground‐based Lidar Temperature Damentioning

confidence: 99%

Validation of SABER v2.0 Operational Temperature Data With Ground‐Based Lidars in the Mesosphere‐Lower Thermosphere Region (75–105 km)

et al. 2018

View full text Add to dashboard Cite

The National Aeronautics and Space Administration (NASA) Thermosphere Ionosphere Mesosphere Energetics and Dynamics (TIMED) Sounding of the Atmosphere using Broadband Radiometry (SABER) instrument performs near‐global measurements of the vertical kinetic temperature (Tk) profiles and volume mixing ratios of various trace species (including O3, CO2, and H2O), with data available from 2002 to present. In this work, the first comparative study of the latest publically available SABER version 2.0 operational retrieval is reported in order to assess the performance of satellite Tk profiles relative to high‐resolution ground‐based lidar profiles. Collocated multiyear seasonal average Tk profiles were compared at nine different locations, representing a variety of different latitudes. In general, the SABER v2.0 and lidar mean seasonal Tk profiles agree well, with the smallest absolute values of ΔTk (z) (SABER minus lidar) found between 85 and 95 km, where the respective SABER and lidar uncertainties were smallest. At altitudes ≥100 km, the SABER Tk (z) typically exhibited warmer temperatures relative to the lidar Tk (z) profiles, whereas for altitudes ≤85 km, SABER Tk (z) was cooler. Relative to lidar, SABER tends to exhibit a warm bias during high‐latitude summertime, with the reasons for this currently still unclear. Overall, SABER was able to reproduce the general latitude‐ and season‐specific variations in the lidar Tk profiles and shown to be statistically similar for most seasons, at most locations, for the majority of altitudes, and with no overall bias.

show abstract

“…Unlike low-and mid-latitudes, where mesospheric fronts are a relatively common wave type and have been identified (by Taylor et al, 1995;Smith et al, 2003;Medeiros et al, 2005Medeiros et al, , 2016Fechine et al, 2005;Smith, 2014), just a few cases have been reported for sub-Antarctic latitudes (e.g., Nielsen et al, 2006;Stockwell et al, 2006;Bageston et al, 2011a, b;Dalin et al, 2013). Bageston et al (2009) in their observations at Ferraz Station, during 2007, observed more than 230 gravity wave events, but only two clear cases of mesospheric fronts were reported.…”

mentioning

confidence: 94%

Mesospheric front observations by the OH airglow imager carried out at Ferraz Station on King George Island, Antarctic Peninsula, in 2011

et al. 2018

View full text Add to dashboard Cite

Abstract. The main goals of this work are to characterize and investigate the potential wave sources of four mesospheric fronts identified in the hydroxyl near-infrared (OH-NIR) airglow images, obtained with an all-sky airglow imager installed at Comandante Ferraz Antarctic Station (EACF, as per its Portuguese acronym) located on King George Island in the Antarctic Peninsula. We identified and analyzed four mesospheric fronts in 2011 over King George Island. In addition, we investigate the atmospheric background environment between 80 and 100 km altitude and discuss the ducts and propagation conditions for these waves. For that, we used wind data obtained from a meteor radar operated at EACF and temperature data obtained from the TIMED/SABER satellite. The vertical wavenumber squared, m 2 , was calculated for each of the four waves. Even though no clearly defined duct (indicated by positive values of m 2 sandwiched between layers above and below with m 2 < 0) was found in any of the events, favorable propagation conditions for horizontal propagation of the fronts were found in three cases. In the fourth case, the wave front did not find any duct support and it appeared to dissipate near the zenith, transferring energy and momentum to the medium and, consequently, accelerating the wind in the wave propagation direction (near to south) above the OH peak (88-92 km). The likely wave sources for these four cases were investigated by using meteorological satellite images and in two cases we could find that strong instabilities were potential sources, i.e., a cyclonic activity and a large convective cloud cell. In the other two cases it was not possible to associate troposphere sources as potential candidates for the generation of such wave fronts observed in the mesosphere and secondary wave sources were attributed to these cases.

show abstract

First common volume ground‐based and space measurements of the mesospheric front in noctilucent clouds

Cited by 21 publications

References 28 publications

Concentric gravity waves in polar mesospheric clouds from the Cloud Imaging and Particle Size experiment

Concentric gravity waves in polar mesospheric clouds from the Cloud Imaging and Particle Size experiment

Validation of SABER v2.0 Operational Temperature Data With Ground‐Based Lidars in the Mesosphere‐Lower Thermosphere Region (75–105 km)

Mesospheric front observations by the OH airglow imager carried out at Ferraz Station on King George Island, Antarctic Peninsula, in 2011

Contact Info

Product

Resources

About