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|a The Atlantic multidecadal oscillation and extreme daily precipitation over the US and Mexico during the hurrican season |h [electronic resource]. |
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|a [S.l.] : |b Springer, |c 2007. |
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|a Please contact the owning institution for licensing and permissions. It is the user's responsibility to ensure use does not violate any third party rights. |
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|a The tail of the distribution of daily precipitation
for August–September–October was examined over the
United States and Mexico in relation to the Atlantic
Multidecadal Oscillation (AMO). As expected from
previous studies linking the AMO to hurricane activity,
Florida and the coastal Southeast US showed an increase in
precipitation intensity when the Atlantic was in a warm
phase (AMO+). Also during AMO+ Northwest Mexico
was dry and exhibited a reduction of extreme events and
the Mid-Atlantic Appalachian Mountains showed evidence
of an increase in heavy precipitation compared to when the
Atlantic was cool. It is proposed that the aforementioned
decadal variations in extreme rainfall are forced by changes
in the large-scale surface winds and air temperature in
conjunction with the AMO. Namely, an anomalous
cyclonic circulation is observed off the Southeast coast,
leading to a reduction of moisture flux into the decaying
North American monsoon, and an increase in moisture flux
into the Mid-Atlantic. Further, the Mid-Atlantic shows a
relatively strong increase in the mid-tropospheric lapse
rate. Thus, the unique combination of low-level humidity,
potential instability, and elevated topography are consistent
with an enhanced risk of intense rainfall during AMO+. |
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|a Electronic reproduction. |c Florida International University, |d 2015. |f (dpSobek) |n Mode of access: World Wide Web. |n System requirements: Internet connectivity; Web browser software. |
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|a Precipitation (Meteorology). |
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|a dpSobek |c Sea Level Rise |
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|u http://dpanther.fiu.edu/dpService/dpPurlService/purl/FI15042699/00001 |y Click here for full text |
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|a http://dpanther.fiu.edu/sobek/content/FI/15/04/26/99/00001/FI15042699_thm.jpg |
