Hooghiemstra, Henry; Bechler, A; Beug, Hans-Jürgen (1987): Isopollen maps for 18,000 years B.P. of the offshore of Northwest Africa: Evidence for paleowind circulation. PANGAEA, https://doi.org/10.1594/PANGAEA.692050, Supplement to: Hooghiemstra, H et al. (1987): Isopollen maps for 18,000 years B.P. of the Atlantic offshore of Northwest Africa: Evidence for paleowind circulation. Paleoceanography, 2(6), 561-582, https://doi.org/10.1029/PA002i006p00561
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Distribution patterns of the most important pollen types from southern European and northwest African source areas for the 18,000 years B.P. time slice are reconstructed from pollen records of 14 well-dated deep-sea cores located between 37° and 9°N and compared with the modern pollen distribution in this area. It is concluded that the belt with maximum African Easterly Jet transport did not shift latitudinally during the last glacial-interglacial transition but remained at about 20°N. Furthermore, it is substantiated that the trade winds did not shift latitudinally during the last glacial-interglacial transition. This evidence is not compatible with an atmospheric circulation model that assumes a zone of surface westerlies in the northern part of northwest Africa. Trade winds during glacial episodes did, however, intensify, especially from about 36° to 24° N.
Median Latitude: 14.167248 * Median Longitude: -19.427163 * South-bound Latitude: 13.876167 * West-bound Longitude: -20.541660 * North-bound Latitude: 14.458330 * East-bound Longitude: -18.312667
Date/Time Start: 1975-07-28T00:00:00 * Date/Time End: 1983-07-12T00:00:00
GIK13239-1 * Latitude: 13.876167 * Longitude: -18.312667 * Date/Time: 1975-07-28T00:00:00 * Elevation: -3156.0 m * Recovery: 6.2 m * Location: Atlantic Ocean * Campaign: VA-10/3 * Basis: Valdivia (1961) * Device: Kasten corer (KAL)
GIK16402-2 * Latitude: 14.458330 * Longitude: -20.541660 * Date/Time: 1983-07-12T00:00:00 * Elevation Start: -4234.0 m * Elevation End: 0.0 m * Location: Atlantic Ocean * Campaign: M65 (GEOTROPEX 83, NOAMP I) * Basis: Meteor (1964) * Device: Gravity corer (Kiel type) (SL) * Comment: offset to GIK16402-1 = 10.5 cm
Datasets listed in this publication series
- Hooghiemstra, H; Bechler, A; Beug, H-J (1987): (Table 2) Pollen analysis of sediment core GIK13239-1. https://doi.org/10.1594/PANGAEA.55248
- Hooghiemstra, H; Bechler, A; Beug, H-J (1987): (Table 2) Pollen analysis of sediment core GIK16402-2. https://doi.org/10.1594/PANGAEA.55247