Coral constraints on 20th century trends in central Pacific climate - ENSO and the mean state - Dr. Kim Cobb, Georgia Tech

Abstract:
In the tropical Pacific, high intrinsic variability combined with sparse instrumental climate data confounds the identification of potential anthropogenic climate trends in this key region, where ocean temperature variations have global reach via atmospheric teleconnections. In this study, Kim Cobb presents a new ensemble of monthly-resolved records of central tropical Pacific temperature and hydrology spanning the last 150 years. Taken together, the corals resolve trends in the mean state as well as changes in the character of ENSO. By combining dynamical constraints gleaned from isotope-enabled models such as CESM as well as in situ observations of temperature and isotopes over the 2015/2016 El Nino event, Dr. Cobb outlines some of the steps required to fully leverage available coral records in the quantitative reconstruction of temperature and hydrology in this poorly-observed region of the world’s ocean.

Building:

Room Number: 
Main Seminar Room

Type of event:

Will this event be webcast to the public by NCAR|UCAR?: 
Yes - ML-Main Seminar Room - http://ucarconnect.ucar.edu/live
Calendar Timing: 
Thursday, May 17, 2018 - 1:30pm to 2:30pm