Jurgen Aschoff (1913-98): Pioneer in biological rhythms

Article Abstract:

Jurgen Aschoff, regarded as the founder of the study of biological rhythms, died in October at the age of 85. Jurgen studied medicine at the University of Bonn and started his scientific career at the University of Gottingen. He discovered spontaneous 24-hour variations in human heat loss while at the Max Planck Institute for Medical Research in Heidelberg. He built a department studying biological timing at the Max Planck Institute of Behavioural Physiology. He had a talent for lecturing and produced many publications on the human sense of time.

Obituary, Appreciation, Physicians, Medical professions, Aschoff, Jurgen

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Reassessment of ice-age cooling of the tropical ocean and atmosphere

Article Abstract:

Sensitivity tests with an atmospheric general circulation model have been used to assess the impact on tropical climate of a new reconstruction, designated OSU, of the sea surface temperature field for the Last Glacial Maximum (LGM). The LGM cooling in the OSU simulation was found to agree well with recent ocean and atmosphere-ocean model simulations over the eastern Pacific, regions of Africa and Asia and the equatorial Atlantic. This agreement indicates convergence of data and models in these regions.

Models, Natural history, Glacial epoch, Ice age, Ocean temperature

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