NCAR Proposal 2008-283 (104715) ARC-0838871
“Applying ice cores, instrumental climate records and climate modeling towards a mechanistic understanding of Antarctic climate variability on interannual to multidecadal time scales”
Dr. Clara Deser, Principal Investigator
Dr. Yuko Okumura and Dr. David Schneider, Co-Principal Investigators
More than 50% completed
Description of Jobs/Created Retained:
(a) Retained: Visiting Scientist to work on modeling aspects of the proposal including experimental design strategies, analysis, and dissemination of results in the form of oral presentations and peer-reviewed journal articles.
(b) Retained: Visiting Scientist to work on observational aspects of the proposal including analysis of ice core records, temperature reconstructions, and global historical climate data sets, as well as dissemination of results in the form of oral presentations and peer-reviewed journal articles.
(c) Retained: Associate Scientist III to provide technical support including running model experiments, post-processing output files, and assisting with analyses.
The overall purpose of this award is to better understand the physical mechanisms controlling climate variability in the southern polar region on interannual, multidecadal and longer time scales over approximately the past 250 years using a range of observational, modeling and proxy (e.g., ice core) information. This quarter has seen continued progress towards our goals. In addition to a published paper in Climate Dynamics on the interpretation of post-1979 Antarctic climate trends, we are nearly finished with two additional manuscripts addressing the nature of the connection between tropical and
Antarctic climate variability and the physical mechanisms responsible for this linkage. Our analyses incorporate a broad suite of observational records, including ice cores and weather records from automated observing stations and temperature reconstructions for Antarctica, as well as historical climate data from tropical marine records and tropical corals. Oral presentations on this work have been given at a number of venues.