Can models of abrupt climate change be tested from sea level reconstructions?
نویسندگان
چکیده
منابع مشابه
Sea-ice switches and abrupt climate change.
We propose that past abrupt climate changes were probably a result of rapid and extensive variations in sea-ice cover. We explain why this seems a perhaps more likely explanation than a purely thermohaline circulation mechanism. We emphasize that because of the significant influence of sea ice on the climate system, it seems that high priority should be given to developing ways for reconstructi...
متن کاملAbrupt change in climate and climate models
First, we review the evidence that abrupt climate changes have occurred in the past and then demonstrate that climate models have developing capacity to simulate many of these changes. In particular, the processes by which changes in the ocean circulation drive abrupt changes appear to be captured by climate models to a degree that is encouraging. The evidence that past changes in the ocean hav...
متن کاملAbrupt climate changes for Iceland during the last millennium: Evidence from high resolution sea ice reconstructions
a Petroleum and Environmental Geochemistry Group, Centre for Chemical Sciences, School of Earth, Ocean and Environmental Sciences, University of Plymouth, Drake Circus, Plymouth, Devon, PL4 8AA, UK b Laboratoire des Sciences du Climat et de l'Environnement, Domaine du CNRS, Avenue de la Terrasse, Bat.12, 91198 Gif-sur-Yvette Cedex, France c Institut des Sciences de la Terre d'Orléans, UMR 6113,...
متن کاملAbrupt climate change and collapse of deep-sea ecosystems.
We investigated the deep-sea fossil record of benthic ostracodes during periods of rapid climate and oceanographic change over the past 20,000 years in a core from intermediate depth in the northwestern Atlantic. Results show that deep-sea benthic community "collapses" occur with faunal turnover of up to 50% during major climatically driven oceanographic changes. Species diversity as measured b...
متن کاملAbrupt climate change.
Large, abrupt, and widespread climate changes with major impacts have occurred repeatedly in the past, when the Earth system was forced across thresholds. Although abrupt climate changes can occur for many reasons, it is conceivable that human forcing of climate change is increasing the probability of large, abrupt events. Were such an event to recur, the economic and ecological impacts could b...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: PAGES news
سال: 2006
ISSN: 1563-0803,1563-0803
DOI: 10.22498/pages.14.2.24