variation of java upwelling based on variability of water mass
TRANSCRIPT
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8/19/2019 Variation of Java Upwelling based on variability of water mass
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Identification of Java
upwelling based onstability of water mass
Setiawan, A.1 G.E. Noor, !. "renggono#, !.$. %utri, ".Agustiadi#, &.%riyono#, '.(u), and *.'ang)
1 $ + -entre for !arine and is/eries "ec/nology, Agency for !arine and is/eries $ + , &alitbang 0% nd &ld. t/ l.
Jalan %asir %uti/ 1, Ancol, Ja2arta 1))#3, Indonesia. "el. 456165)7118# E9t. ))3), a9. 456165)71131, E6mail:
agus.setiawan;22p.go.id
$esearc/ Group of
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Background of JUVO "/e J=>< program outlines an effort to measure t/e magnitude and variability of
t/e Java upwelling by deploying a subsurface A-% mooring system at location?135.7@E, 8.@S and a surface buoy system at location ?133@E, 8@S.
• "/e upwelling of t/e Sout/ern coast of
Java is /ypot/esiBed to play a maCor
role in t/e Indian
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Background
Stratification
Differences of oceanographic
parameters:
>Temperature >Pressure>Radiance >Nutrient>Salinity >Density
Stability ofWaterasses
form
Stable
!nstable"ertical mo#ement tofind stable position
causes
inuence
Neutral
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Data
Year Cruise/Date Instrument Oceanografic Parameters Depth
2008-2009 1(26 Dec – 9 Sept) RBR Temperature, Salinity, Depth 150-400m
2009-2010 2(10 Sept-20 ei) RBR Temperature, Salinity, Depth
2008-2010 26 Dec-20 ei RD! 150 " #urrent(u,$,%) 24-1&0 m
2011-2012 2& 'e-1& an RBR*#TD Temperature, Salinity, Depth 200-500m
2012-2013 26 'e - 22 'e
RBR Temperature, Salinity, Depth 400-650m
RD! 150 " #urrent(u,$,%) 115-&5m
2013 .pril - 6 Dec
RBR Temperature, Salinity, Depth &50-550m
RD! 150 " #urrent(u,$,%) .$ailale /nly
56,59
Additional data: sea water temperature data from *(-
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Salinity
Temp $%bser#ation & odel'
())*+(),)
Temperature
B"-
&> value 1 9136) s61
decreased to 5 9 136s61In 3386313, upwelling occurred during mid
!ei6AugustFSeptember, indicated by:• decreasing &> value ?from 19136) to
59136• vertical current wit/ speed 1, cmFs
brings isot/erm layer 1o- and iso/aline
layer #).8 psu rise from m to 13m
and 13m, respectively• s/allower !H ?from 3m to #3m
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Temperature
())*+(),)
S/allower !H
was found
?from 3m to#3m
ue to divergence
caused by Sout/
Java -urrent ?SJ- 6
eastward and
Sout/ Euatorial
-urrent ?SE- 6westward
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B"-
Temperature
5,8
7,8
8,8
./0)/
.10*
/
.102/Salinity
(),,I until
6)9 136
s61
(),( (),.
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(),(+(),.
=pwelling occurred due to
interaction between t/e
monsoon and I
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B"- (),.
Salinity
Temperature
1,7 9 136 decreases to 1,) 9 136
#.3
#.3
In 31#, upwelling occurred in June6
September, indicated by:
• decreased &> from 1,79136 to
1,)9 136
• isot/erm 8,#o- and iso/aline
#,3psu rise from 3m to )7m
and )33m, respectively
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"erima2asi/