histórico da variabilidade e mudança climática da...
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Histórico da Variabilidade e Mudança Climática da TerraHistórico da Variabilidade e Mudança Climática da Terra
What is the Relationship between Climate Change and Weather??What is the Relationship between Climate Change and Weather??
B13 Core collected during the MPI cruse (April 2005)B13 Core collected during the MPI cruse (April 2005)
Rein et al., 2005
-20.6ess
-1
-1.5
VPD
B)
0.40.50 6
r thi
ckn
m)
0
-0.5
δ18 O
(V
0 10.20.3
ual l
ayer
(mm
9 9 2 9 4 9 6 9 8 10 10 2
0.50
0.1
Ann
u9 9.2 9.4 9.6 9.8 10 10.2
Age (kyr B.P.)
Registros de alta resolução temporal
Fleitmann et al., 2003, Science
g
Datação U/Thδ18O =(18O/16O)sample – 18O/16O)VPD
Datação U/Th
s p(18O/16O)VPDB
δ13C =(13C/12C)amostra – 13C/12C)VPDB(18O/16O)VPDB
Taxa de crescimentoTaxa de crescimento
Elementos traços: çMg, Sr, Ba, U, P
Fonte: Decifrando a terra/Teixeira et al. 2000
860
840
820
Inso
Último Período GlacialEstalagmite Bt2 Botuverá-SC
900
880
860 lation Feb960
940
920
b. 30S (W
/23 ky-2
-1980
960
m2)23 ky
-3
δ18O
-5
-4
0 10 20 30 40 50 60 70 80 90 100 110 120Age (ky B.P.) Cruz et al., Nature, 2005
-38
-36
-42
-40
NG
RIP δ
0-44
-42
δ18O
Heinrich events-1
-46
Frio Hemisfério Norte Heinrich events
-3
-2
Bt2
δ18
O
5
-4 Intensificação d õ d ã50 60 70 80 90 100 110 120 130
-5
Age (ky B.P.) das monções de verão
Cruz et al., QSR, 2006
0Lake level
+-
Lagoa do Boqueirão
Lake level (m)
Lagoa do Caço
Lake level (m)
Lagoa do Acuelo
0
1000
2000 (3). Haug et al., 2001B3000
4000
5000
(4). Sifeddine et al., en préparation1 2 3 4 5
(5). Lac BoqueirãoA6000
7000
ENSO event/century 8000
Age Cal BP
ENSO event/century Ti (%)
(2). Moy et al., 2002
(1) J t l 2002(1). Jenny et al., 2002
Sifeddine et al., PPP. Submitted
Peruvian continental margin characteristicsPeruvian continental margin characteristics Sediments Sediments without bioturbationwithout bioturbation
0°
* Lima
30°
N
60°90°120°60°
W longitude6090120
0 20 40 60 80 100 120Chlorophyll a 0 20 40 60 80 100 120
Dissolved oxygen (% saturation)100 m depth
Chlorophyll-aconcentration
(mg m-3)
0 50 100 150 200 250 300600
650
0 1000 2000 3000 4000 5000 6000
Al (peak area) Fe (peak area)
LIA650
700
750
800
850
900
MCA (1100-1200 AD)
950
1000
1050
1100
1150
1200
1250
1300 Age Cal yrs BP13000 100 200 300 400 500 600 700 0 1000 2000 3000 4000
Ca (peak area)Ti (peak area)
g y
PC1PC1 Intense Intense
ProductivityProductivityTerrigenous inputTerrigenous input
Projection of the variables on the factor-plane ( 1 x 2)
-6 -4 -2 0 2 4 6800
900
PC1PC1Terrigenous inputTerrigenous inputHumid conditionsHumid conditions
1 cm
j p ( )
0,5
1,0 1000
1100 MCAMCA
Al
CA
FeTi
0,0
acto
r 2 :
17,4
5%
1200
1300
1400
Mo
Cd
Ti TOC
-0,5
Fa
1500
1600
-1,0 -0,5 0,0 0,5 1,0
Factor 1 : 59,36%
-1,01700
1800
1900ProductivityProductivityR d C ditiR d C diti 1900
2000
2100
Redox ConditionsRedox Conditions
2200
Sifeddine et al., Progress In Oceanography. Submitted
Wet
-2.5
-3.0
-3.5
rdes
te
LIALIA NE Brasil
-1.0
-1.5
-2.0
δ18O
FN1
Nor
MCAMCA
DDW
-8.2
-8.4600 800 1000 1200 1400 1600 1800 2000
-0.5DryDry
-7.8
-8.0
δ18O
China
China
-5.0
-4.5
-4.0
Dr
zil
-7.6DryDry
-6.5
-6.0
-5.5
δ18O
Sout
hern
Bra
z
600 800 1000 1200 1400 1600 1800 2000-7.5
-7.0
Years A.D
SE Brasil
Wet
-2.5
-3.0
-3.5
rdes
te
LIALIA NE Brasil
-1.0
-1.5
-2.0
δ18O
FN1
Nor
MCAMCA
W
-8.2
-8.4600 800 1000 1200 1400 1600 1800 2000
-0.5DryDry
-7.8
-8.0
δ18O
China
China
-4.5
-4.0
Dr
-7.6DryDry
-6.0
-5.5
-5.0
Sout
hern
Bra
zil
600 800 1000 1200 1400 1600 1800 2000-7.5
-7.0
-6.5
δ18O
S
SE Brasil