Welcome to CGD's Climate Analysis Section
CAS Research
The mission of the Climate Analysis Section is to increase the understanding of the
atmosphere and climate system through empirical studies and diagnostic analyses of the atmosphere and its interactions with the Earth's surface and oceans on a wide range of
scales with a particular goal of contributing to the building of a climate information system.
Emphasis of research is on the atmospheric and oceanic general circulations, meteorological phenomena such as tropical cyclones, global warming, the hydrological cycle, and climate variations over several time scales. Research has focused on interannual variations, such as the El Nino-Southern Oscillation and the North Atlantic Oscillation phenomena; decadal variations, such as the Pacific Decadal Oscillation; and longer-period trends, and their climate forcings. Attribution and mitigation of climate change are also topics of in-depth research.
Data Access
CAS Data Catalog Download data derived by or located at CAS. Documentation and links are provided, as well as information on related data sets and references.
Featured Topics
NCAR Scientists to Present Latest Findings on Climate Change, Weather at New Orleans Meeting.
Climate shift. "The mid-1970s climate shift in the Pacific and the relative roles of forced versus inherent decadal variability", Speaker: Gerald Meehl.
Worldwide runoff. "Changes and variations in continental freshwater discharge from 1949-2004", Speaker: Aiguo Dai.
Volcanoes to cool climate? Get real, say experts.
Rivers run dry... Trenberth and his colleague Dr Aiguo Dai found just such a pronounced drop in precipitation, seen in terms of the world's stream and river flows, after the 1991 eruption. There was a "singular decrease" in river discharges into the oceans, says Trenberth, whose work is published in the journal Geophysical Research Letters.