Couverture de Variability, Teleconnections and LRF of NW India Winter Precipitation
Titre du livre:

Variability, Teleconnections and LRF of NW India Winter Precipitation

Variability, Teleconnections and Long-Range Prediction of North-West India Winter Precipitation

LAP LAMBERT Academic Publishing (04-05-2011 )

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ISBN-13:

978-3-8443-3105-9

ISBN-10:
3844331050
EAN:
9783844331059
Langue du livre:
Anglais
texte du rabat:
In this book, interannual variability of North-West India winter precipitation (NWIWP) has been examined. It has been found that the simultaneous relationship with ENSO and equatorial Indian Ocean SST relationship has strengthened and the North Atlantic Oscillation (NAO) relationship has weakened in the recent decades. The convective heating anomalies of the tropical atmosphere due to increased SST over equatorial Pacific and Indian Oceans during the excess NWIWP years increase the meridional temperature gradient, which in turn intensifies and shifts the sub-tropical westerly jet-stream to lower latitudes. The jet-stream over northern India plays an important role in modulating NWIWP. While, NAO intensifies subtropical high over North Atlantic and adjoining areas. This contributes to the synoptic forcing that helps to develop the trough over Caspian Sea and hence, excess NWIWP. Also, the simultaneous relationship between NWIWP and convective maximum over warm-pool region, increases the seasonal predictability of NWIWP. Of the three empirical seasonal forecast models developed for NWIWP, the Artificial Neural Network model with 6 predictors showed better skill.
Maison d'édition:
LAP LAMBERT Academic Publishing
Site Web:
https://www.lap-publishing.com/
de (auteur) :
Ramesh Kumar Yadav
Numéro de pages:
136
Publié le:
04-05-2011
Stock:
Disponible
Catégorie:
Géographie
Prix:
59.00 €
Mots-clés:
Winter, North-West India, Long-Range Prediction, Western Disturbances, ENSO, NAO, Wintersport

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