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Titre : |
Temperature depression in the lowland tropics in glacial times
|
Auteur(s) : |
P.A. Colinvaux
K.B. Liu P. de Oliveira M.B. Bush M.C. Miller M. Steinitz Kannan |
Type de document : | Tiré à part |
Résumé : |
Equatorial air temperatures at low elevations in the New World tropics are shown by pollen and other data to have been significantly lowered in long intervals of the last glaciation. These new data show that long recognized evidence for cooling at high elevations in the tropics were symptomatic of general tropical cooling and that they did not require appeal to altered lapse rates or other special mechanisms to be made to conform with conclusions that equatorial sea surface temperatures (SSTs) were scarcely changed in glacial times. The new data should be read in conjonction with recent findings that Caribbean (SSTs) were lowered in the order of 5°C, contrary to previous interpretations. Thus these accumulating data show that low latitudes as well as high were cooled in glaciations. i[...]
Equatorial air temperatures at low elevations in the New World tropics are shown by pollen and other data to have been significantly lowered in long intervals of the last glaciation. These new data show that long recognized evidence for cooling at high elevations in the tropics were symptomatic of general tropical cooling and that they did not require appeal to altered lapse rates or other special mechanisms to be made to conform with conclusions that equatorial sea surface temperatures (SSTs) were scarcely changed in glacial times. The new data should be read in conjonction with recent findings that Caribbean (SSTs) were lowered in the order of 5°C, contrary to previous interpretations. Thus these accumulating data show that low latitudes as well as high were cooled in glaciations. in part the earlier failure to find evidence of low elevation cooling in the lowland tropics resulted from the data being masked by strong signals for aridity given by old lake |
Editeur(s) : | Kluwer academic publishers |
Date de publication : | 1996 |
Format : | pp. 19-33., nb réf. |
Langue(s) : | Anglais |
Lien vers la notice : | https://infodoc.agroparistech.fr/index.php?lvl=notice_display&id=151453 |
Exemplaires (1)
Localisation | Emplacement | Pôle | Section | Cote | Support | Disponibilité |
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Kourou | AgroParisTech-Kourou | SI TP18519 | Papier | Empruntable Disponible |