{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T10:27:01Z","timestamp":1753871221038,"version":"3.41.2"},"reference-count":22,"publisher":"American Geophysical Union (AGU)","issue":"D7","license":[{"start":{"date-parts":[[2008,7,18]],"date-time":"2008-07-18T00:00:00Z","timestamp":1216339200000},"content-version":"vor","delay-in-days":93,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Geophys. Res."],"published-print":{"date-parts":[[2008,4,16]]},"abstract":"<jats:p>The influence of the quasi\u2010biennial oscillation (QBO) on the tropopause pressure and temperature is studied through the application of the multitaper\u2010singular value decomposition method (MTM\u2010SVD). Reanalysis data (ERA\u201040) from the European Centre for Medium\u2010Range Weather Forecasts (ECMWF) and radiosonde data from the Integrated Global Radiosonde Archive (IGRA) covering the period 1979\u20131999 are used. The results show a strong response of the height and temperature of the tropopause to the QBO not limited to the equatorial latitudes but affecting the entire Northern Hemisphere. A cooling (warming) of the tropopause temperature over polar (equatorial) latitudes during a QBO positive phase is observed, being particularly noticeable over polar latitudes. The anomalies in the tropopause height confirm these results, with the tropopause being at higher (lower) levels in polar (equatorial) latitudes during QBO positive phase. Results for the QBO negative phase are of opposite sign. We also found that the results obtained using raw radiosonde data and reanalysis are in very good agreement. Finally, the evolution of the mass stream function through a QBO cycle is used to justify the differences observed in the evolution of the tropopause characteristics at low and high latitudes through the QBO cycle.<\/jats:p>","DOI":"10.1029\/2007jd009765","type":"journal-article","created":{"date-parts":[[2008,7,17]],"date-time":"2008-07-17T23:43:10Z","timestamp":1216338190000},"source":"Crossref","is-referenced-by-count":8,"title":["Quasi\u2010biennial modulation of the Northern Hemisphere tropopause height and temperature"],"prefix":"10.1029","volume":"113","author":[{"given":"P.","family":"Ribera","sequence":"first","affiliation":[{"name":"Departamento de Sistemas Fisicos, Quimicos y Naturales Universidad Pablo de Olavide  Seville Spain"}]},{"given":"C.","family":"Pe\u00f1a\u2010Ortiz","sequence":"additional","affiliation":[{"name":"Departamento de Sistemas Fisicos, Quimicos y Naturales Universidad Pablo de Olavide  Seville Spain"}]},{"given":"J. A.","family":"A\u00f1el","sequence":"additional","affiliation":[{"name":"CESAM, Departamento de Fisica Universidade de Aveiro  Aveiro Portugal"},{"name":"Facultad de Ciencias de Ourense Universidad de Vigo  Ourense Spain"}]},{"given":"L.","family":"Gimeno","sequence":"additional","affiliation":[{"name":"Facultad de Ciencias de Ourense Universidad de Vigo  Ourense Spain"}]},{"given":"L.","family":"de la Torre","sequence":"additional","affiliation":[{"name":"CESAM, Departamento de Fisica Universidade de Aveiro  Aveiro Portugal"},{"name":"Facultad de Ciencias de Ourense Universidad de Vigo  Ourense Spain"}]},{"given":"D.","family":"Gallego","sequence":"additional","affiliation":[{"name":"Departamento de Sistemas Fisicos, Quimicos y Naturales Universidad Pablo de Olavide  Seville Spain"}]}],"member":"13","published-online":{"date-parts":[[2008,7,18]]},"reference":[{"volume-title":"Middle Atmosphere Dynamics","year":"1987","author":"Andrews D. 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