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Simultaneous and common‐volume observations of noctilucent clouds and polar mesosphere summer echoes
Author(s) -
von Zahn U.,
Bremer J.
Publication year - 1999
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/1999gl900206
Subject(s) - mesosphere , lidar , atmospheric sciences , polar , mesopause , rayleigh scattering , latitude , radar , environmental science , climatology , volume (thermodynamics) , meteorology , geology , geodesy , physics , remote sensing , stratosphere , astronomy , optics , telecommunications , quantum mechanics , computer science
Joint operations of the ALOMAR Rayleigh/Mie/Raman (RMR) lidar and ALOMAR SOUSY radar (located at 69°N latitude) let us obtain a first series of simultaneous and common‐volume observations of noctilucent clouds (NLC) and polar mesosphere summer echoes (PMSE). We present the results of 22 examples of simultaneous NLC and PMSE observations made during the summers 1994 until 1997. These observations show a strong correlation of NLC with PMSE and they lead us to a classification (3 types) of the observed events. Furthermore, we conclude that, in all probability, there are common causes for the two types of layers.