REU: History of Southern Hemisphere Atmospheric Circulation:The Indian Ocean Record
{'Code': '06040200', 'Directorate': {'Abbreviation': 'GEO', 'LongName': 'Directorate For Geosciences'}, 'Division': {'Abbreviation': 'OCE', 'LongName': 'Division Of Ocean Sciences'}}
{'SignBlockName': 'Bilal U. Haq', 'PO_EMAI': None, 'PO_PHON': None}
This project will construct whole-Cenozoic record of eolian                     deposition from ODP Leg 121 drillsites in the eastern Indian                    Ocean.  That record will reveal the history, on tectonic                        timescales, of Southern Hemisphere atmospheric circulation                      intensity and of patterns of continental (largely Australian)                   aridity.  Further the data will link the entire late Cretaceous                 to recent eolian record to the history of the ocean and                         cryosphere based on isotopic and other proxy indicators                         determined from the same core, and sometimes the same samples.                  There are several specific questions or events to be                            investigated.  The first of these is the nature of any changes                  in atmospheric circulation across the Cretaceous-Tertiary                       boundary.  Secondly, to delineate the Southern Hemisphere                       record of the important change in atmospheric circulation that                  occurs in the Northern Hemisphere at the Paleocene-Eocene                       boundary.  Third, examine significant changes in Southern                       Hemisphere atmospheric circulation that occur in conjunction                    with the latest Eocene - early Oligocene polar cooling and                      changes in Antarctic ice volume.  In this regard the fact that                  wind intensity is another indication of the planetary                           temperature gradient means that the data will place further                                                                                                     constraints on the ice-volume vs. temperature discussions.                                                                                                      %%%                                                                                                                                                                                                                                                                                                                             The effects of paleoclimatic changes during the last 60 million                                                                                                 years on atmospheric circulation may be determined from                                                                                                         changing patterns of wind-blown particles in deep-sea                                                                                                           sediments.  This project will utilize the eolian material in                                                                                                    drill cores from the Indian Ocean to infer shifting wind                                                                                                        patterns that may be linked to climate changes.  Because the                                                                                                    atmosphere is very sensitive to climate, these paleocirculation                                                                                                 results will provide a monitor of paleoclimatic changes in the                                                                                                  Southern Hemisphere.  This information will be very important                                                                                                   in modelling studies of the Indian Ocean response to Antarctic                                                                                                  glaciation, uplift of the Tibetan Plateau, and the effect of                                                                                                    the Northern hemisphere glaciation.
{'FirstName': 'David', 'LastName': 'Rea', 'PI_MID_INIT': 'K', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'David K Rea', 'EmailAddress': 'davidrea@umich.edu', 'NSF_ID': '000205700', 'StartDate': '11/01/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
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[{'Code': '1620', 'Text': 'Marine Geology and Geophysics'}, {'Code': '9120', 'Text': 'CROSS-DIRECTORATE PROGRAMS'}]
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1988&All=true', 'xml': '8811299.xml'}