Not logged in
Data Publisher for Earth & Environmental Science

Liu, Yi; Lo, Li; Shi, Zhengguo; Wei, Kuo-Yen; Chou, Chien-Ju; Chen, Yi-Chi; Chuang, Chih-Kai; Wu, Chung-Che; Mii, Horng-Sheng; Peng, Zicheng; Amakawa, Hiroshi; Burr, George S; Lee, Shih-Yu; Elderfield, Henry; Shen, Chuan-Chou (2019): Age model and Nd/Ca ratio of planktonic foraminifera from sediment core MD05-2925 off the Solomon Sea. PANGAEA,, Supplement to: Liu, Y et al. (2015): Obliquity pacing of the western Pacific Intertropical Convergence Zone over the past 282,000 years. Nature Communications, 6(1),

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract: The Intertropical Convergence Zone (ITCZ) encompasses the heaviest rain belt on the Earth. Few direct long-term records, especially in the Pacific, limit our understanding of long-term natural variability for predicting future ITCZ migration. Here we present a tropical precipitation record from the Southern Hemisphere covering the past 282,000 years, inferred from a marine sedimentary sequence collected off the eastern coast of Papua New Guinea. Unlike the precession paradigm expressed in its East Asian counterpart, our record shows that the western Pacific ITCZ migration was influenced by combined precession and obliquity changes. The obliquity forcing could be primarily delivered by a cross-hemispherical thermal/pressure contrast, resulting from the asymmetric continental configuration between Asia and Australia in a coupled East Asian-Australian circulation system. Our finding suggests that the obliquity forcing may play a more important role in global hydroclimate cycles than previously thought.
Intertropical Convergence Zone; Monsoon; Orbital pacing; Western Pacific Warm Pool
Latitude: -9.343500 * Longitude: 151.460200
Date/Time Start: 2005-06-22T00:00:00 * Date/Time End: 2005-06-22T00:00:00
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 15.10 m
MD05-2925 (MD052925) * Latitude: -9.343500 * Longitude: 151.460200 * Date/Time: 2005-06-22T00:00:00 * Elevation: -1661.0 m * Recovery: 28.43 m * Location: Egum * Campaign: MD148 (IMAGES XIII - PECTEN) * Basis: Marion Dufresne (1995) * Method/Device: Calypso Corer II (CALYPSO2)
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DEPTH, sediment/rockDepth sedmLo, LiGeocode
2AGEAgeka BPLo, LiAfter Lo et al. 2017Geocode
3Globigerinoides ruber, Neodymium/Calcium ratioG. ruber Nd/Caµmol/molLo, Li250-300 µm
4DEPTH, sediment/rockDepth sedmLo, LiGeocode
5AGEAgeka BPLo, LiAfter Lo et al. 2017Geocode
6Globigerinoides sacculifer, Neodymium/Calcium ratioG. sacculifer Nd/Caµmol/molLo, Li300-355 µm
7DEPTH, sediment/rockDepth sedmLo, LiGeocode
8AGEAgeka BPLo, LiAfter Lo et al. 2017Geocode
9Pulleniatina obliquiloculata, Neodymium/Calcium ratioP. obliquiloculata Nd/Caµmol/molLo, Li355-425 µm
548 data points

Download Data

Download dataset as tab-delimited text — use the following character encoding:

View dataset as HTML