Modelling the climate response to astronomical and CO2 forcing.

Type of article: Article

Summary

A few experiments have been made to test the response of the Louvain-la-Neuve two-dimensional northern hemisphere climate model (LLN 2-D model) to both the insolation and CO2 forcings. For the future 130,000 years, analysis of the insolation shows that the present interglacial might last particularly long (50,000 years). The small insolation variation over this period is indeed quite exceptional, a situation occurring only 5 times over the last 3 million years. The scenarios taking into account the climatic impact of man's activities over the next 2 centruries lead, in the LLN 2-D model, to a highly probable melting of the Greenland ice sheet over the next 6,000 to 10,000 years, the northern hemisphere ice volume returning to its natural behaviour only after 50,000 to 75,000 years.

Details

Original title: Modelling the climate response to astronomical and CO2 forcing.
Record ID : 1997-1157
Languages: English
Subject: Environment, General information
Source: C. R. Acad. Sci., Sér. II, A - vol. 323 - n. 1
Publication date: 1996/07
Document available for consultation in the library of the IIR headquarters only.

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Indexing

Themes: General information on environment (climate change, ozone depletion…)
Keywords: Ice; Prediction; Greenhouse effect; Melting; CO2; Climate