Udara Amarathunga

Position
Harry H. Hess Postdoctoral Research Fellow
Role
The Sigman Laboratory at Princeton University
Title
Geochemistry
Assistant
Bio/Description

Title: Harry H. Hess Postdoctoral Research Fellow

Group: The Sigman Laboratory at Princeton University

Area(s): Geochemistry

Research Summary: 

He investigates past changes of ocean and the climate to resolve the timing and magnitude of natural climate variability, using Nitrogen and Oxygen isotope measurements. These proxy data are combined with theoretical and applied modelling to study present and past states of ocean properties and circulation. Ongoing projects are focused on:

  1. Climate-related variations in Arabian Sea denitrification over the past 200 thousand years
  2. Pliocene evolution of North African climate and the Mediterranean Sea
  3. Late Miocene evolution of Mediterranean-Atlantic gateway exchange (IODP Expedition 401)
  4. Antarctic bottom water production since the mid-Pleistocene (CANYONS Voyage, Cape Darnley, Antarctica).

Keywords: Paleoclimate, Paleoceanography, Nitrogen isotopes, Physical oceanography