The 1997 PMSE season ‐ Its relation to wind, temperature and water vapour

Kirkwood, S.; Barabash, Victoria; Chilson, Phillip B.; Réchou, Anne; Stebel, K.; Espy, P. J.; Witt, G.; Stegman, J.

doi:10.1029/98gl01243

Cited by 27 publications

(21 citation statements)

References 15 publications

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“…The main characteristics are that the steep increase during end of May/beginning of June, rather high level approaches 90% in the middle of June until the middle/end of July, and a gradually decrease during August (Bremer et al, 2003). The observations are in general agreement with independent observations from different radars located at almost the same geographical latitude (Balsley and Huaman, 1997;Kirkwood et al, 1998).…”

Section: The Seasonal Variations Of Pmse-essupporting

confidence: 79%

Study on mesosphere summer echoes observed by digital ionosonde at Zhongshan Station, Antarctica

Liu

et al. 2007

Earth Planet Sp

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The irregular characteristics of E and Es layers are studied with data from 1995 to 2002 observed by a Digisonde Portable Sounder-4 (DPS-4) ionosonde at Zhongshan Station, Antarctica. Because they have much similar characteristics with Polar Mesosphere Summer Echoes (PMSE), two criteria are proposed to study PMSE at MF and HF bands in Southern hemisphere. The phenomena of irregular E and Es layer are called as PMSElike or Polar Mesosphere Summer Echoes-Es (PMSE-Es) here. The occurrence rate variations of PMSE-Es show similarity to those of PMSE at multi-scales, such as seasonal, diurnal, and semidiurnal variation. Finally, the discrepancies between diurnal, semidiurnal and seasonal variation between PMSE and PMSE-Es are discussed respectively.

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Section: The Seasonal Variations Of Pmse-essupporting

confidence: 79%

Study on mesosphere summer echoes observed by digital ionosonde at Zhongshan Station, Antarctica

Liu

et al. 2007

Earth Planet Sp

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“…The local solar time at the radar site is 84 min later than UT. In a separate study by Kirkwood et al (1998) using ES-RAD, it was shown that the prevalence of PMSE reached almost saturation (24 h present) during the period between 28 May and 24 July 1997. This period was also characterized by the lowest mesospheric temperatures and a stable westward wind pattern.…”

Section: Mst Radar Datamentioning

confidence: 99%

Are variations in PMSE intensity affected by energetic particle precipitation?

2002

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Abstract.The correlation between variations in Polar Mesosphere Summer Echoes (PMSE) and variations in energetic particle precipitation is examined. PMSE were observed by the Esrange VHF MST Radar (ESRAD) at 67 • 53 N, 21 • 06 E. The 30 MHz riometer in Abisko (68 • 24 N, 18 • 54 E) registered radio wave absorption caused by ionization changes in response to energetic particle precipitation. The relationship between the linear PMSE intensity and the square of absorption has been estimated using the Pearson linear correlation and the Spearman rank correlation. The mean diurnal variation of the square of absorption and the linear PMSE intensity are highly correlated. However, their day-to-day variations show significant correlation only during the late evening hours. The correlation in late evening does not exceed 0.6. This indicates that varying ionization cannot be considered as a primary source of varying PMSE, and the high correlation found when mean diurnal variations are compared is likely a by-product of daily variations caused by other factors.

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“…Siskind et al [2003] have investigated the detailed effects of this on the summer mesopause region. Kirkwood et al [1998] applied these ideas to discuss the seasonal behavior of polar mesosphere summer echoes in the NH. As described above, the SH winter stratosphere is less variable than the NH due to little planetary wave activity.…”

Section: Introductionmentioning

confidence: 99%

Intra- and inter-hemispheric coupling effects on the polar summer mesosphere

Gumbel

Karlsson

2011

Geophys. Res. Lett.

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The state of the mesosphere is connected to the lower atmosphere through various dynamical coupling processes. Nine years of Odin satellite observations of noctilucent clouds (NLC) have been analyzed as tracers for such processes. Inter‐hemispheric coupling from the winter stratosphere and troposphere is confirmed to have a major influence on the summer mesosphere. Intra‐hemispheric coupling from the spring/summer stratosphere, on the other hand, can control the onset of the NLC season. Most prominently, the southern NLC season 2010–2011 started with a delay of more than 20 days as compared to other years, which coincides with an exceptionally persistent polar vortex in the Antarctic stratosphere. Proposed mechanisms for the above teleconnections are based on the effect of lower atmospheric circulation on gravity wave filtering and, thus, on the dynamical forcing of the mesospheric circulation. Both intra‐ and inter‐hemispheric coupling processes are needed for an understanding of the overall seasonal behavior of the summer mesosphere.

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The 1997 PMSE season ‐ Its relation to wind, temperature and water vapour

Cited by 27 publications

References 15 publications

Study on mesosphere summer echoes observed by digital ionosonde at Zhongshan Station, Antarctica

Study on mesosphere summer echoes observed by digital ionosonde at Zhongshan Station, Antarctica

Are variations in PMSE intensity affected by energetic particle precipitation?

Intra- and inter-hemispheric coupling effects on the polar summer mesosphere

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