|
|
|
Boginfo |
|
|
|
|
|
|
Museum Tusculanums Forlag bruger cookies for at huske dine indstillinger. Ved at bruge sitet accepterer du dette. Accepter cookies
|
|
Johnsen, Sigfus J., Henrik B. Clausen, Willi Dansgaard, Niels S. Gundestrup, Margareta Hansson, Peter Jonsson, Jørgen P. Steffensen & Arny E. Sveinbjørnsdottir
A "deep" ice core from East Greenland
1992, 22 sider Illustreret 19 x 26,5 cm
ISBN 978-87-635-1215-2
Serie:
Monographs on Greenland | Meddelelser om Grønland, vol. 288
ISSN 0025-6676
Serie:
Geoscience, vol. 29
ISSN 0106-1046
|
|
Vejl. pris66 DKK 10 $ 9 € 8 £
|
Onlinepris52 DKK 8 $ 7 € 6 £
|
|
|
Må du bare eje denne bog?
Man kan desværre ikke købe direkte i vores webshop lige nu da den betalingsløsning vi tidligere har anvendt, er lukket.
En ny – og bedre – hjemmeside er på vej, men den er ikke helt klar endnu.
Indtil den lanceres, kan du bestille bøger på den gammeldags maner, ved at skrive til order@mtp.dk. Så sender vi dig bøgerne med en faktura.
Husk at angive navn og adresse til forsendelsen i din mail.
Bestillinger sendes som udgangspunkt som pakker til afhentning; læs mere her. Hvis du behøver levering til døren, så angiv også det i din bestilling.
|
Pilot studies on the Renland peninsula in Scoresbysund Fjord, East Greenland, indicated that the relatively small and separate Renland ice cap meets most of the criteria defining a favourable ice-core drill-site. In 1988, a Nordic expedition recovered a continuous surface-to-bedrock ice core from the summit. This relatively short core reaches deep into the past, probably throughout the last glaciation and through most of the preceding interglacial, Eem, 125,000 years B.P. The core contains detailed information on temporal changes of the coastal environment, and serves as a valuable complement to the new deep ice cores being drilled in Central Greenland. Core analyses suggest that (1) during Eemian time the East Greenland climate was at least 5ÔC warmer than now, and the precipitation 20% higher; (2) during the last glacial period, the precipitation decreased to a minimum, perhaps only 20% of the present value; (3) the post-glacial climatic optimum was 2,5ÔC warmer than now; (4) the long-term variability of the record is relatively low, due to isostatic movements in the area; and (5) from 70,000 years B.P. the Greenland glacial climate alternated between two quasi-stable stages. The latter point may reflect a chaotic feature of climate. If so, climate predictions will be difficult to access.
|
|
|
|
|
|
|
|
|
|