Computer Science
Scientific paper
Aug 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995gecoa..59.3099r&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 59, Issue 15, pp.3099-3107
Computer Science
22
Scientific paper
A field calibration of the U K 37 index with sea surface temperature is discussed, through analysis of an extensive suite of surface sediments ( n = 109) from the northeastern Atlantic (2°S-75°N). Values of U K 37 are compared with sea surface temperatures for overlying waters measured at different depths and seasons, to obtain a correlation suitable for palaeotemperature reconstructions. The best fit is obtained using surface (0 m) temperatures corresponding to caloric winter and autumn months. However, the annual average, spring and summer surface temperature equations also have high correlation coefficients, and are also appropriate for climatic studies. The results further validate the general applicability of the U K 37 as a climatic proxy, because the calibration equations are valid over a wide range of surface water temperatures (0-28°C) for different algal populations and are representative of the average contribution of alkenones to sediments, as found in sediment cores.
Eglinton Geoffrey
Pflaumann Uwe
Rosell-Melé Antoni
Sarnthein Michael
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