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Huang, Chin-Chien; Chen, Min-Te; Lee, Meng-Yang; Wei, Kuo-Yen; Huang, Chi-Yue (2003): Sea Surface temperatures of warm and cold seasons calculated from planktic foraminifera in sediment core MD97-2151. PANGAEA, https://doi.org/10.1594/PANGAEA.114675, Supplement to: Huang, C-C et al. (2002): Planktic foraminifer faunal sea surface temperature records of the past two glacial terminations in the South China Sea near Wan-An shallow (IMAGES core MD972151). Western Pacific Earth Sciences, 2(1), 1-14, hdl:10013/epic.37314.d001

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Abstract:
The South China Sea is the largest marginal sea of southeastern Asia, lying presently under the influences of the Western Pacific Warm Pool and Asian monsoon systems. Sediment cores from this area provide high-resolution records for interpreting millennial- to centennial-scales paleoclimatic changes expressed in the western Pacific. Here we present results of high-resolution paleoceanographic data including planktic foraminifer fauna sea surface temperature (SST) anddepth of thermocline (DOT) estimates along with foraminifer stable isotopes, alkenone SST estimates analyzed froma core takenfrom the southern South China Sea (SCS) near Wan-An Shallow (IMAGES III 1997 cruise core MD97-2151). The intervals of the record presented here cover the past two glacial Terminations (centering at ab. 12,000 and 128,000 yrs B.P.). Our analyses of SST estimates by using planktic foraminifer transfer functions with paralleling measurements of alkenone SST methods all show events of rapid cooling reversals occurrring during the Termination I concurrent with the Younger Dryas (ab. 13-11 kyr B.P.), and Heinrich events reported previously from GISP2 ice core and North Atlantic core studies. Our reconstructions indicate also that theTermination I inthe southern SCS is characterized by a change of monsoon wind systems, with probably much stronger winter monsoon winds in the glacial period. We also found that during the Termination II, there was no such climatic reversal analogous to the Younger Dryas. During oxygen isotope stage 5, our estimates of SST and DOT, and abundances of deep-dwelling planktic foraminifer species all show large-amplitude variations, indicating an instability of monsoon climate during the interglacial period. Our studies also highlight the climatic teleconnections shown by the linkage of the SCS and other regional records for examples from the East China Sea and Chinese loess.
Project(s):
International Marine Global Change Study (IMAGES)
Coverage:
Latitude: 8.728000 * Longitude: 109.869000
Minimum DEPTH, sediment/rock: 0.04 m * Maximum DEPTH, sediment/rock: 26.66 m
Event(s):
MD97-2151 (MD972151) * Latitude: 8.728000 * Longitude: 109.869000 * Elevation: -1598.0 m * Recovery: 26.72 m * Location: South China Sea * Campaign: MD106 (IMAGES III - IPHIS) * Basis: Marion Dufresne * Device: Calypso Corer (CALYPSO)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1DEPTH, sediment/rockDepthmGeocode
2Sea surface temperature, summerSST sum°CChen, Min-TeTransfer function, Mix et al, 1999
3Sea surface temperature, winterSST win°CChen, Min-TeTransfer function, Mix et al, 1999
Size:
654 data points

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