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ODP1233.txt
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Southeast Pacific High Resolution Alkenone SST Reconstruction
-----------------------------------------------------------------------
World Data Center for Paleoclimatology, Boulder
and
NOAA Paleoclimatology Program
-----------------------------------------------------------------------
NOTE: PLEASE CITE CONTRIBUTORS WHEN USING THIS DATA!!!!!
NAME OF DATA SET: Southeast Pacific High Resolution Alkenone SST Reconstruction
LAST UPDATE: 11/2005 (Original receipt by WDC Paleo)
CONTRIBUTOR: Jérôme Kaiser, University of Bremen, <kaiserj@uni-bremen.de>
IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2005-073
SUGGESTED DATA CITATION: Kaiser, J., et al. 2005.
Southeast Pacific High Resolution Alkenone SST Reconstruction.
IGBP PAGES/World Data Center for Paleoclimatology
Data Contribution Series # 2005-073.
NOAA/NCDC Paleoclimatology Program, Boulder CO, USA.
ORIGINAL REFERENCE: Kaiser, J., F. Lamy, and D. Hebbeln. 2005.
A 70-kyr sea surface temperature record off southern Chile
(Ocean Drilling Program Site 1233).
Paleoceanography, Vol. 20, PA4009, doi:10.1029/2004PA001146
ABSTRACT:
We present the first high-resolution alkenone-derived sea surface
temperature (SST) reconstruction in the southeast Pacific (Ocean
Drilling Program Site 1233) covering the major part of the last
glacial period and the Holocene. The record shows a clear
millennial-scale pattern that is very similar to climate
fluctuations observed in Antarctic ice cores, suggesting that
the Southern Hemisphere high-latitude climate changes extended into
the midlatitudes, involving simultaneous changes in air temperatures
over Antarctica, sea ice extent, extension of the Antarctic
Circumpolar Current, and westerly atmospheric circulation.
A comparison to other midlatitude surface ocean records suggests
that this "Antarctic" millennial-scale pattern was probably a
hemisphere-wide phenomenon. In addition, we performed SST gradient
reconstructions over the complete latitudinal range of the Pacific
Eastern Boundary Current System for different time intervals during
the last 70 kyr. The main results suggest an equatorward displaced
subtropical gyre circulation during marine isotope stages 2 and 4.
GEOGRAPHIC REGION: Southeast Pacific
PERIOD OF RECORD: 70 KYrBP - present
FUNDING SOURCE: German Science Foundation grant DFG-He-3412-1-3
DESCRIPTION:
70 KYr Alkenone-based Southeast Pacific Sea Surface Temperature Reconstruction
using the calibration curve from Prahl et al. (1988) (Uk'37 = 0.034T + 0.039)
Alkenone data from ODP Site 1233: 41 deg. 0.005'S 74 deg. 26.992'W water depth 838m.
DATA:
Southeast Pacific Sea Surface Temperature Reconstruction
Column 1: Depth (mcd)
Column 2: Age (cal KYr BP 1950)
Column 3: Alkenone-based SST (°C)
Depth Age SST
0 -0.05 13.97
0.72 0.37 13.73
1.44 0.87 14.24
2.17 1.39 14.25
2.89 1.87 14.24
3.64 2.54 14.06
4.34 3.57 14.32
5.06 4.26 14.2
5.79 4.92 14.27
6.51 5.43 14.28
7.23 5.83 15
7.35 5.90 14.96
7.95 6.27 14.86
8.67 6.80 14.47
9.5 7.63 14.49
10.22 8.42 14.74
10.94 8.99 14.95
11.71 9.39 15.37
12.43 9.77 15.28
13.15 10.15 15.39
13.83 10.53 14.9
14.55 10.92 15.62
15.28 11.32 14.85
15.88 11.64 14.89
16 11.71 14.95
16.72 12.10 15.42
17.44 12.44 14.06
18.16 12.75 13.28
18.88 13.05 13.37
19.6 13.36 13.25
20.32 13.69 13.37
21.05 14.24 12.72
21.84 14.82 13.52
22.56 15.36 12.8
23.31 15.91 12.6
24.03 16.45 12.86
24.75 16.98 12.1
25.47 17.43 12.35
26.15 17.78 11.15
26.87 18.16 10.06
27.47 18.47 10.34
27.59 18.53 9.95
28.3 18.90 9.02
29.02 19.27 8.89
29.86 19.70 9.51
30.46 20.00 9.62
31.21 20.36 9.84
31.93 20.71 9.95
32.68 21.08 9.92
33.4 21.43 9.53
34 21.65 9.31
34.12 21.69 9.44
34.84 21.93 9.01
35.44 22.13 7.78
35.56 22.17 7.96
36.28 22.42 9.61
37.77 23.07 8.98
38.49 23.40 10.64
39.09 23.67 10.83
39.22 23.73 10.98
39.82 24.03 10.91
39.94 24.09 10.07
40.67 24.47 9.42
41.27 24.78 9.31
41.39 24.84 9.3
42.11 25.21 10.09
42.84 25.59 10.09
43.59 25.98 8.97
44.19 26.42 8.94
44.31 26.51 8.83
44.43 26.61 8.73
44.91 26.99 10.11
45.03 27.08 9.5
45.75 27.65 9.91
46.47 28.22 11.23
47.17 28.77 10.74
47.89 29.06 10.57
48.61 29.33 10.38
49.11 29.51 10.83
49.83 29.63 10.21
50.55 29.75 10.3
50.91 29.89 10.22
51.15 30.04 10.71
51.27 30.11 10.57
51.39 30.18 10.32
51.82 30.43 10.96
52 30.54 10.65
52.79 31.01 9.61
53.39 31.37 8.70
53.5 31.44 8.56
54.22 31.86 10.05
54.94 32.29 10.34
55.67 32.99 9.70
56.42 33.74 10.23
57.32 34.65 10.05
58.03 35.36 9.64
58.75 36.08 10.21
59.45 36.69 10.21
60.17 37.24 10.34
60.89 37.80 8.64
61.61 38.36 9.56
62.38 38.96 10.01
63.1 39.30 11.42
63.74 39.57 11.1
63.86 39.62 10.78
64.46 39.87 11.22
64.58 39.92 11.07
64.94 40.06 10.62
65.18 40.14 9.42
65.3 40.18 9.50
65.66 40.30 8.98
66.02 40.42 8.52
66.79 40.67 8.62
67.4 40.87 9.20
67.52 40.91 9.20
67.76 40.99 8.92
68.24 41.13 9.98
68.85 41.31 9.71
68.97 41.34 9.6
69.81 41.59 10.87
69.93 41.63 9.98
70.05 41.66 9.56
70.65 41.84 10.63
71.33 42.04 9.43
71.37 42.05 9.52
72.06 42.26 9.05
72.1 42.27 9.77
72.46 42.37 9.77
72.82 42.48 10.3
73.54 42.69 11.47
74.26 42.90 10.61
74.62 43.01 10.48
75.3 43.45 8.98
75.67 43.69 8.27
76.03 43.92 8.6
76.35 44.13 8.35
76.71 44.37 8.53
77.07 44.60 9.21
77.39 44.81 10.39
77.75 45.04 10.55
78.11 45.27 10.62
78.48 45.51 11.19
78.8 45.72 11.82
79.16 45.95 11.65
79.5 46.18 10.4
79.86 46.41 10.34
80.22 46.64 9.48
80.89 47.08 10.27
81.25 47.31 10.75
81.97 47.76 10.96
82.66 48.18 9.82
83.38 48.63 9.11
84.08 49.06 9.63
84.76 49.48 9.69
85.48 49.93 9.41
86.85 50.78 9.91
87.58 51.23 11.11
88.26 51.65 10.96
88.98 51.92 10.69
89.66 52.17 12.6
90.37 52.43 11.46
91.07 52.69 10.21
92.45 53.20 10.04
93.17 53.47 11.57
93.85 53.72 9.85
94.57 53.99 10.82
95.27 54.25 11.95
95.95 54.50 11.11
96.66 54.76 11.79
97.36 55.07 11.11
98.06 55.39 10.38
98.78 55.71 10.83
99.47 56.02 10.52
100.15 56.32 10.38
101.55 56.95 12.27
102.25 57.12 10.41
102.97 57.29 11.8
103.66 57.46 12.44
104.38 57.63 11.7
105.07 57.80 11.91
105.75 57.96 12.34
106.48 58.14 12.58
107.16 58.30 11.89
107.89 58.48 11.55
108.57 58.64 11.42
109.26 58.80 11.61
109.96 58.97 13.53
111.36 59.31 13.44
112.08 59.63 12.92
112.76 59.94 10.49
113.45 60.25 12.95
114.17 60.57 9.81
114.87 60.88 10.05
115.55 61.19 11.87
116.28 61.51 12.89
116.96 61.82 9.59
117.62 62.11 9.73
118.37 62.45 9.39
119.05 62.75 7.88
119.78 63.08 8.59
120.46 63.38 8.2
121.17 63.70 8.65
121.9 64.06 9.72
122.58 64.40 8.51
123.26 64.73 8.89
123.95 65.07 8.49
124.67 65.43 10.32
125.37 65.77 8.69
126.05 66.11 8.07
126.77 66.46 7.9
127.45 66.80 7.97
128.16 67.15 8.88
128.88 67.50 8.37
129.56 67.84 8.69
130.28 68.08 10.29
130.96 68.30 10.51
131.67 68.53 12.69
132.35 68.75 12.3
133.07 68.99 13.51
133.75 69.21 13.29
134.47 69.45 14.68
135.18 69.68 12.18
135.7 69.85 10.73