A minor sudden stratospheric warming with a major impact: Transport and polar processing in the 2014/2015 Arctic winter

Manney, G. L.; Lawrence, Zachary D.; Santee, M. L.; Read, W. G.; Livesey, N. J.; Lambert, A.; Froidevaux, L.; Pumphrey, Hugh C.; Schwartz, M.

doi:10.1002/2015gl065864

Cited by 68 publications

(73 citation statements)

References 43 publications

(63 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Kodera et al (2015) defined the 2010 SSW as a major event while Strahan et al (2016) identified this event as a minor SSW. Manney et al (2015) reported that the onset date of the 2015 SSW was 4 January while Gupta and Upadhayaya (2017) stated that the onset date was 26 January. In the present study, the occurrence of the SSW event is determined based on the World Meteorological Organization definition that the zonal mean temperature gradient between 90°N and 60°N becomes positive, and the positive gradient lasts more than 5 days at 10 hPa level.…”

Section: Discussionmentioning

confidence: 99%

A Statistical Analysis of the Propagating Quasi 16‐Day Waves at High Latitudes and Their Response to Sudden Stratospheric Warmings From 2005 to 2018

Gong

Wang

et al. 2019

JGR Atmospheres

View full text Add to dashboard Cite

This study presents an analysis of the long‐term variations of four propagating quasi 16‐day waves with Wavenumbers 1 and 2 and investigates their association with sudden stratospheric warming (SSW) events. The study is based on the data obtained from Aura Microwave Limb Sounder satellite and Modern‐Era Retrospective Analysis for Research and Applications‐2 reanalysis data in the period from 2004 to 2018. Strong quasi 16‐day waves are found in the winter hemisphere. The propagating waves with Wavenumber 1 are prominent in the Northern Hemisphere and eastward‐propagating waves are dominant in the Southern Hemisphere. By analyzing 14 SSW events, we found that the westward‐propagating quasi 16‐day waves increase rapidly around the onset dates of the major SSWs, which is likely associated with the quickly reduced mean eastward background winds. Based on analysis of geopotential height, Ertel potential vorticity and Eliassen‐Palm flux, the propagating quasi 16‐day waves with Wavenumbers 1 and 2, (mainly from westward‐propagating components) contribute to the formation of the vortex displaced and vortex split SSWs, respectively.

show abstract

Section: Discussionmentioning

confidence: 99%

A Statistical Analysis of the Propagating Quasi 16‐Day Waves at High Latitudes and Their Response to Sudden Stratospheric Warmings From 2005 to 2018

Gong

Wang

et al. 2019

JGR Atmospheres

View full text Add to dashboard Cite

show abstract

“…SFW takes place almost during March to May in the NH every year. The onset dates of the two warming events are in middle‐to‐late March; thus, the SFW in 2015 spring is relatively early, which is closely related to only a minor SSW in 2014/2015 winter (Manney et al, ) since SFWOD tends to be earlier without a major SSW in winter (Hu et al, ; Labitzke, ). The earlier the SFW occurs, the more influence the PW has on it (Hu et al, ).…”

Section: Discussionmentioning

confidence: 99%

Quasi 10‐ and 16‐Day Wave Activities Observed Through Meteor Radar and MST Radar During Stratospheric Final Warming in 2015 Spring

Huang

Zhang

et al. 2019

JGR Atmospheres

View full text Add to dashboard Cite

By combining observations from three meteor radars and a mesosphere‐stratosphere‐troposphere radar arranged along the 120°E meridian with reanalysis data from 20 February to 20 May 2015, we study the stratospheric final warming (SFW) in 2015 spring and planetary wave activities from the troposphere to the mesosphere and lower thermosphere (MLT) at different latitudes. There are two successive warming events with the polar mean temperature rises of 24 and 9 K at 10‐hPa level. By means of the two warming events separated by only several days, the mean temperature increases by nearly 20 K, and the mean zonal wind decreases from more than 30 m/s to about −10 m/s; thus, seasonal transition of the polar circulation is completed. The investigation shows that the quasi 10‐ (Q10DW) and 16− (Q16DW)day waves occur around the SFW. In the troposphere, their amplitudes are close to 10 m/s in the wind field. At 10‐hPa level of the stratosphere, the strong wave activities arise before the SFW, while in the MLT, the waves are amplified following the SFW with the amplitude peaks about 10 days after the SFW onset. The wave amplitude in the MLT tends to increase in the zonal wind but decrease in the meridional wind with decreasing latitude, which is roughly consistent with the Hough modes. Hence, the Q10DW and Q16DW in the MLT are distinct from those in the stratosphere, and they are likely to be generated and strengthened in situ in the upper stratosphere and MLT.

show abstract

“…Hence, this event is classified as a minor SSW. Manney et al (2015) reported that a minor SSW could also have a great impact on polar processes. As shown in Figure 1b, the circumpolar westward wind appears on day 39 (8 February) in 2016, which is defined as the SSW onset date.…”

Section: Discussionmentioning

confidence: 99%

A Study on the Quarterdiurnal Tide in the Thermosphere at Arecibo During the February 2016 Sudden Stratospheric Warming Event

Gong

et al. 2018

Geophysical Research Letters

View full text Add to dashboard Cite

Using data collected from the Arecibo incoherent scatter radar during 5–10 February 2016, we present a study on the quarterdiurnal tide (QDT) from 250 to 360 km. A sudden stratospheric warming (SSW) event occurred on 8 February coincided with our observation. The maximum amplitude of the QDT, at ~37 m/s, is comparable with the diurnal tide and much larger than the semidiurnal tide. The QDT is largely evanescent. Our results manifest that the F region QDT could be as important as the diurnal and semidiurnal tides. The tidal waves show large variability before and after the commencement of the SSW. Our analysis indicates that the enhancement of the QDT is most likely due to the effect of the SSW. Nonlinear interaction of the diurnal tide with the terdiurnal tide is found to play a significant role in amplifying the QDT during the SSW event.

show abstract

A minor sudden stratospheric warming with a major impact: Transport and polar processing in the 2014/2015 Arctic winter

Cited by 68 publications

References 43 publications

A Statistical Analysis of the Propagating Quasi 16‐Day Waves at High Latitudes and Their Response to Sudden Stratospheric Warmings From 2005 to 2018

A Statistical Analysis of the Propagating Quasi 16‐Day Waves at High Latitudes and Their Response to Sudden Stratospheric Warmings From 2005 to 2018

Quasi 10‐ and 16‐Day Wave Activities Observed Through Meteor Radar and MST Radar During Stratospheric Final Warming in 2015 Spring

A Study on the Quarterdiurnal Tide in the Thermosphere at Arecibo During the February 2016 Sudden Stratospheric Warming Event

Contact Info

Product

Resources

About