{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T00:36:28Z","timestamp":1760142988297,"version":"build-2065373602"},"reference-count":46,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2024,1,12]],"date-time":"2024-01-12T00:00:00Z","timestamp":1705017600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["41831071","42188101"],"award-info":[{"award-number":["41831071","42188101"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>The behavior of multi-year quasi-2-day wave (Q2DW) activity in the high and middle latitudes in the mesosphere and lower thermosphere regions during 2013\u20132022 is revealed, for the first time, using two meteor radars along the 120\u00b0E longitude, which are located at Mohe (52.5\u00b0N, 122.3\u00b0E) and Wuhan (30.5\u00b0N, 114.6\u00b0E). We first describe the interannual monthly mean characteristics of the Mohe and Wuhan winds. We then determine the extraction of the Q2DWs via a least-squares method and calculate the occurrence dates, amplitudes, periods, and phases of the zonal and meridional Q2DWs. We find that the summer zonal wind speed of Mohe reached ~35 m\/s at ~94 km in 2022, and the meridional wind speed reached ~\u221220 m\/s at ~88 km in 2017. Similarly, the zonal and meridional wind speeds in Wuhan reached ~48 m\/s and ~\u221230 m\/s at ~94 km and ~90 km, respectively, in the summer of 2020. Statistical analysis shows that, in Mohe and Wuhan, the highest frequency of Q2DWs is observed between days 200 and 220. The Q2DW is mainly associated with the background mean wind and is consistent with a selective filtering mechanism. We believe that the correlation between wind shear and Q2DW amplitude is higher in summer because wind shear reaches its maximum when Q2DW starts to amplify. The wave period of the Mohe zonal Q2DW is longer than that of the Wuhan zonal Q2DW, while that of the meridional Q2DW is shorter. In addition, the zonal and meridional Q2DW amplitudes are weaker in Mohe than in Wuhan. The vertical wavelength of the Q2DW in Wuhan is shorter than that in Mohe. Solar activity F10.7 does not appear to be strongly correlated with Q2DW behavior in Mohe and Wuhan.<\/jats:p>","DOI":"10.3390\/rs16020311","type":"journal-article","created":{"date-parts":[[2024,1,12]],"date-time":"2024-01-12T03:54:34Z","timestamp":1705031674000},"page":"311","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Multi-Year Behavioral Observations of Quasi-2-Day Wave Activity in High-Latitude Mohe (52.5\u00b0N, 122.3\u00b0E) and Middle-Latitude Wuhan (30.5\u00b0N, 114.6\u00b0E) Using Meteor Radars"],"prefix":"10.3390","volume":"16","author":[{"given":"Liang","family":"Tang","sequence":"first","affiliation":[{"name":"School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China"}]},{"given":"Sheng-Yang","family":"Gu","sequence":"additional","affiliation":[{"name":"Electronic Information School, Wuhan University, Wuhan 430072, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0756-2391","authenticated-orcid":false,"given":"Ruidi","family":"Sun","sequence":"additional","affiliation":[{"name":"Electronic Information School, Wuhan University, Wuhan 430072, China"}]},{"given":"Xiankang","family":"Dou","sequence":"additional","affiliation":[{"name":"Electronic Information School, Wuhan University, Wuhan 430072, China"}]}],"member":"1968","published-online":{"date-parts":[[2024,1,12]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"210","DOI":"10.1016\/j.jastp.2017.05.002","article-title":"Climatology of the quasi-2-day waves observed in the MLS\/Aura measurements (2005\u20132014)","volume":"171","author":"Pancheva","year":"2018","journal-title":"J. Atmos. Sol. Terr. Phys."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"9917","DOI":"10.5194\/acp-15-9917-2015","article-title":"Meteor radar quasi 2-day wave observations over 10 years at Collm (51.3\u00b0N, 13.0\u00b0E)","volume":"15","author":"Lilienthal","year":"2015","journal-title":"Atmos. Chem. Phys."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"e2020JA028877","DOI":"10.1029\/2020JA028877","article-title":"Quasi-Two-Day Waves in the Northern Hemisphere Observed by TIMED\/SABER Measurements during 2002\u20132019","volume":"126","author":"Gu","year":"2021","journal-title":"J. Geophys. Res. Space Phys."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"9462","DOI":"10.1029\/2019JA026918","article-title":"Quasi Two-, Three-, and Six-Day Planetary-Scale Wave Oscillations in the Upper Atmosphere Observed by TIMED\/SABER over ~17 Years during 2002\u20132018","volume":"124","author":"Liu","year":"2019","journal-title":"J. Geophys. Res. Space Phys."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"12061","DOI":"10.5194\/acp-18-12061-2018","article-title":"Long-term observation of midlatitude quasi 2-day waves by a water vapor radiometer","volume":"18","author":"Lainer","year":"2018","journal-title":"Atmos. Chem. Phys."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"7886","DOI":"10.1002\/2013JA018858","article-title":"Long-term observations of the quasi two-day wave by Hawaii MF radar","volume":"118","author":"Gu","year":"2013","journal-title":"J. Geophys. Res. Space Phys."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"D11103","DOI":"10.1029\/2010JD014567","article-title":"Zonal wave numbers of the summertime 2 day planetary wave observed in the mesosphere by EOS Aura Microwave Limb Sounder","volume":"116","author":"Tunbridge","year":"2011","journal-title":"J. Geophys. Res. Atmos."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"D16121","DOI":"10.1029\/2010JD015390","article-title":"Meteor radar observations of short-term variability of quasi 2 day waves and their interaction with tides and planetary waves in the mesosphere\u2013lower thermosphere region over Thumba (8.5\u00b0N, 77\u00b0E)","volume":"116","author":"John","year":"2011","journal-title":"J. Geophys. Res. Atmos."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"728","DOI":"10.1175\/1520-0469(1996)053<0728:EAEOTQ>2.0.CO;2","article-title":"Excitation and Evolution of the Quasi-2-Day Wave Observed in UARS\/MLS Temperature Measurements","volume":"53","author":"Wu","year":"1996","journal-title":"J. Atmos. Sci."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"1401","DOI":"10.1016\/0021-9169(95)00120-4","article-title":"Global study of northern hemisphere quasi-2-day wave events in recent summers near 90 km altitude","volume":"58","author":"Meek","year":"1996","journal-title":"J. Atmos. Terr. Phys."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"17495","DOI":"10.5194\/acp-21-17495-2021","article-title":"Eastward-propagating planetary waves in the polar middle atmosphere","volume":"21","author":"Tang","year":"2021","journal-title":"Atmos. Chem. Phys."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"4094","DOI":"10.1029\/2018JA025365","article-title":"Quasi-6-Day Wave Modulation of the Equatorial Electrojet","volume":"123","author":"Yamazaki","year":"2018","journal-title":"J. Geophys. Res. Space Phys."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"4764","DOI":"10.1002\/2017JA023954","article-title":"The quasi-6 day wave and its interactions with solar tides","volume":"122","author":"Forbes","year":"2017","journal-title":"J. Geophys. Res. Space Phys."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"26","DOI":"10.1016\/j.jastp.2009.10.005","article-title":"Global distribution and climatological features of the 5\u20136-day planetary waves seen in the SABER\/TIMED temperatures (2002\u20132007)","volume":"72","author":"Pancheva","year":"2010","journal-title":"J. Atmos. Sol. Terr. Phys."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"26141","DOI":"10.1029\/96JD04011","article-title":"Radar observations of a 3-day Kelvin wave in the equatorial mesosphere","volume":"102","author":"Riggin","year":"1997","journal-title":"J. Geophys. Res. Atmos."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"420","DOI":"10.1175\/1520-0469(1997)054<0420:TDWAOF>2.0.CO;2","article-title":"The 4-Day Wave as Observed from the Upper Atmosphere Research Satellite Microwave Limb Sounder","volume":"54","author":"Allen","year":"1997","journal-title":"J. Atmos. Sci."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"18899","DOI":"10.1029\/95JD01168","article-title":"The 4-Day Wave in the Antarctic Mesosphere","volume":"100","author":"Lawrence","year":"1995","journal-title":"J. Geophys. Res.-Atmos."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"2496","DOI":"10.1175\/1520-0469(1991)048<2496:DOTDWI>2.0.CO;2","article-title":"Dynamics of the 4-Day Wave in the Southern Hemisphere Polar Stratosphere","volume":"48","author":"Randel","year":"1991","journal-title":"J. Atmos. Sci."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"9874","DOI":"10.1029\/2019JD030634","article-title":"Large-Amplitude Quasi-10-Day Waves in the Middle Atmosphere during Final Warmings","volume":"124","author":"Yamazaki","year":"2019","journal-title":"J. Geophys. Res. Atmos."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"11079","DOI":"10.1002\/2015JD023327","article-title":"Quasi-10-day wave in the atmosphere","volume":"120","author":"Forbes","year":"2015","journal-title":"J. Geophys. Res. Atmos."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"e2019JA027505","DOI":"10.1029\/2019JA027505","article-title":"Multi-instrumental Observations of the Quasi-16-Day Variations from the Lower Thermosphere to the Topside Ionosphere in the Low-Latitude Eastern Asian Sector During the 2017 Sudden Stratospheric Warming Event","volume":"125","author":"Liu","year":"2020","journal-title":"J. Geophys. Res. Space Phys."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"274","DOI":"10.26464\/epp2020033","article-title":"Characteristics of the quasi-16-day wave in the mesosphere and lower thermosphere region as revealed by meteor radar, Aura satellite, and MERRA2 reanalysis data from 2008 to 2017","volume":"4","author":"Gong","year":"2020","journal-title":"Earth Planet. Phys."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"12617","DOI":"10.1029\/2019JD031482","article-title":"A Statistical Analysis of the Propagating Quasi 16-Day Waves at High Latitudes and Their Response to Sudden Stratospheric Warmings from 2005 to 2018","volume":"124","author":"Gong","year":"2019","journal-title":"J. Geophys. Res. Atmos."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"1571","DOI":"10.5194\/acp-12-1571-2012","article-title":"Mean winds, temperatures and the 16- and 5-day planetary waves in the mesosphere and lower thermosphere over Bear Lake Observatory (42\u00b0N, 111\u00b0W)","volume":"12","author":"Day","year":"2012","journal-title":"Atmos. Chem. Phys."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"4149","DOI":"10.5194\/acp-11-4149-2011","article-title":"Aura MLS observations of the westward-propagating s = 1, 16-day planetary wave in the stratosphere, mesosphere and lower thermosphere","volume":"11","author":"Day","year":"2011","journal-title":"Atmos. Chem. Phys."},{"key":"ref_26","first-page":"585","article-title":"A discussion on D and E region winds over Europe\u2014Long-period meteor wind oscillations","volume":"271","author":"Muller","year":"1972","journal-title":"Math. Phys. Sci."},{"key":"ref_27","first-page":"D16111","article-title":"Simulation of the eastward 4-day wave in the Antarctic winter mesosphere using a gravity wave resolving general circulation model","volume":"114","author":"Watanabe","year":"2009","journal-title":"J. Geophys. Res. Atmos."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"3456","DOI":"10.1175\/1520-0469(1998)055<3456:TDWATO>2.0.CO;2","article-title":"The 4-Day Wave and Transport of UARS Tracers in the Austral Polar Vortex","volume":"55","author":"Manney","year":"1998","journal-title":"J. Atmos. Sci."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"1547","DOI":"10.1029\/93GL01707","article-title":"Eastward-moving 2\u20134 day waves in the winter Antarctic mesosphere","volume":"20","author":"Fraser","year":"1993","journal-title":"Geophys. Res. Lett."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"2016","DOI":"10.1175\/1520-0469(1979)036<2016:OOATWI>2.0.CO;2","article-title":"Observation of a 4\u2013Day Temperature Wave in the Polar Winter Stratosphere","volume":"36","author":"Venne","year":"1979","journal-title":"J. Atmos. Sci."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"283","DOI":"10.1016\/j.jastp.2005.01.017","article-title":"Quasi two-day-wave modulation of gravity wave flux and consequences for the planetary wave propagation in a simple circulation model","volume":"68","author":"Jacobi","year":"2006","journal-title":"J. Atmos. Sol. Terr. Phys."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"1017","DOI":"10.1016\/S1364-6826(01)00012-8","article-title":"Mesosphere\/lower thermosphere wind measurements over Europe in summer 1998","volume":"63","author":"Jacobi","year":"2001","journal-title":"J. Atmos. Sol. Terr. Phys."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"9142","DOI":"10.1002\/2017GL074597","article-title":"Responses of Quasi 2 Day Waves in the MLT Region to the 2013 SSW Revealed by a Meteor Radar Chain","volume":"44","author":"Ma","year":"2017","journal-title":"Geophys. Res. Lett."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"RS5009","DOI":"10.1029\/2003RS003014","article-title":"Buckland Park all-sky interferometric meteor radar","volume":"39","author":"Holdsworth","year":"2004","journal-title":"Radio Sci."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"121-1","DOI":"10.1029\/2001GL014229","article-title":"An examination of high latitude upper mesosphere dynamic stability using the Nippon\/Norway Svalbard Meteor Radar","volume":"29","author":"Hall","year":"2002","journal-title":"Geophys. Res. Lett."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"1253","DOI":"10.1016\/j.asr.2007.10.018","article-title":"Meteor radar temperatures over Collm (51.3\u00b0N, 13\u00b0E)","volume":"42","author":"Stober","year":"2008","journal-title":"Adv. Space Res."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"D14105","DOI":"10.1029\/2005JD006794","article-title":"Neutral air temperatures at 90 km and 70\u00b0N and 78\u00b0N","volume":"111","author":"Hall","year":"2006","journal-title":"J. Geophys. Res.Atmos."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"155","DOI":"10.1016\/S1364-6826(00)00138-3","article-title":"Real-time determination of meteor-related parameters utilizing modern digital technology","volume":"63","author":"Hocking","year":"2001","journal-title":"J. Atmos. Sol. Terr. Phys."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"436","DOI":"10.1002\/2017GL076282","article-title":"High- and Middle-Latitude Neutral Mesospheric Density Response to Geomagnetic Storms","volume":"45","author":"Yi","year":"2018","journal-title":"Geophys. Res. Lett."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"1117","DOI":"10.1002\/2016JA023448","article-title":"Variations of the meteor echo heights at Beijing and Mohe, China","volume":"122","author":"Liu","year":"2017","journal-title":"J. Geophys. Res. Space Phys."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"2321","DOI":"10.1029\/2012JA017976","article-title":"Tidal wind mapping from observations of a meteor radar chain in December 2011","volume":"118","author":"Yu","year":"2013","journal-title":"J. Geophys. Res. Space Phys."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"675","DOI":"10.1016\/j.jastp.2004.01.018","article-title":"First results of the tidal structure in the MLT revealed by Wuhan Meteor Radar (30\u00b040\u2032N, 114\u00b030\u2032E)","volume":"66","author":"Xiong","year":"2004","journal-title":"J. Atmos. Sol. Terr. Phys."},{"key":"ref_43","doi-asserted-by":"crossref","unstructured":"Sun, R.D., Gu, S.Y., Dou, X.K., Wei, Y.F., Qin, Y.S., and Yang, Z.L. (2023). Decadal Quasi-2-Day Wave Observations in the Equatorial Mesopause Region by a Meteor Radar over Kototabang (0.2\u00b0S, 100.3\u00b0E) and TIMED\/TIDI and Comparison with Quasi-2-Day Wave Observations at Mid-Latitudes. Remote Sens., 15.","DOI":"10.3390\/rs15041122"},{"key":"ref_44","doi-asserted-by":"crossref","unstructured":"Pancheva, D., Mukhtarov, P., Siskind, D.E., and Smith, A.K. (2016). Global distribution and variability of quasi 2\u2009day waves based on the NOGAPS-ALPHA reanalysis model. J. Geophys. Res. Space Phys., 121.","DOI":"10.1002\/2016JA023381"},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"1061","DOI":"10.5194\/angeo-31-1061-2013","article-title":"Global climatological variability of quasi-two-day waves revealed by TIMED\/SABER observations","volume":"31","author":"Huang","year":"2013","journal-title":"Ann. Geophys."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"1624","DOI":"10.1002\/jgrd.50191","article-title":"Observations of Quasi-Two-Day wave by TIMED\/SABER and TIMED\/TIDI","volume":"118","author":"Gu","year":"2013","journal-title":"J. Geophys. Res. Atmos."}],"container-title":["Remote Sensing"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2072-4292\/16\/2\/311\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T13:45:10Z","timestamp":1760103910000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2072-4292\/16\/2\/311"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,1,12]]},"references-count":46,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2024,1]]}},"alternative-id":["rs16020311"],"URL":"https:\/\/doi.org\/10.3390\/rs16020311","relation":{},"ISSN":["2072-4292"],"issn-type":[{"type":"electronic","value":"2072-4292"}],"subject":[],"published":{"date-parts":[[2024,1,12]]}}}