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contributor authorKönnen, G. P.
contributor authorJones, P. D.
contributor authorKaltofen, M. H.
contributor authorAllan, R. J.
date accessioned2017-06-09T15:40:43Z
date available2017-06-09T15:40:43Z
date copyright1998/09/01
date issued1998
identifier issn0894-8755
identifier otherams-5048.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4190045
description abstractPressure data from Indonesia and Tahiti for years before 1866 are used to extend the Southern Oscillation index (SOI) back to 1841, with a gap between 1861 and 1865. Further extension is possible using an index of Jakarta rainday counts back to 1829. Rainday counts correlate (r = ?0.60) with average Jakarta pressure for the June?November dry season over the 1876?1944 period. Although low, this correlation is still better than the correlation of tree rings with pressure or SOI. After 1950 the rainday count?pressure relationship alters, and by the 1990s 18% more raindays (an increase of seven per dry season) occur than the pressure would indicate. The dramatic increase in the size and population of Jakarta since 1950 is considered the most likely reason.
publisherAmerican Meteorological Society
titlePre-1866 Extensions of the Southern Oscillation Index Using Early Indonesian and Tahitian Meteorological Readings
typeJournal Paper
journal volume11
journal issue9
journal titleJournal of Climate
identifier doi10.1175/1520-0442(1998)011<2325:PEOTSO>2.0.CO;2
journal fristpage2325
journal lastpage2339
treeJournal of Climate:;1998:;volume( 011 ):;issue: 009
contenttypeFulltext


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