Accelerated Climate Modeling for Energy (ACME): Ocean and Sea-Ice Processes

A consortium of Department of Energy (DOE) laboratories have proposed to develop an Earth System modeling capability to be responsive to DOE Office of Science strategic objectives as well as broader climate change needs. The development of the Accelerated Climate Modeling for Energy (ACME) project is designed to be responsive to a suite of climate science drivers (see ACME proposal abstract) that aim, among others, to improve our understanding of how (1) the hydrological cycle and water resources, (2) biogeochemical cycles, and (3) rapid changes in cryospheric systems interact with the climate system. SIO proposes to partner with DOE Laboratory investigators to address questions related to the roles of the ocean and the cryosphere (sea-ice in the first instance) in the climate system produced by the new Earth System Model  (ESM) in which an eddy-active ocean model is coupled to a weather-scale atmospheric model.

We propose to carry out assessments of the veracity of the ocean and sea-ice components at all development stages using a suite of performance metrics and analyses that were developed by the PI over the past decade.  Emerging data sets will be included in the suite of validation analyses as they become available. We will provide alpha/beta testing of the climate model diagnostics package: UV-CDAT that is under further development as part of the DOE Laboratory effort. We will provide our analysis codes for transition into this package. The focus of our analyses will be on the representation of air-sea and upper-ocean processes responsible for the uptake of heat and carbon in the eddy active ocean component of the ESM. As well, we will examine atmosphere-ocean/sea-ice interactions in the marginal ice zones of both hemispheres and relate them to recent climate change and variability. Once land ice is implemented in the ESM, we will investigate ocean/sea-ice/land ice interactions around Greenland and over the Antarctic shelf, again in the context of climate change over the past decades.

Project Term: 
2014 to 2018
Project Type: 
University Project

Research Highlights:

Isopycnal Eddy Mixing across the Kuroshio Extension: Stable versus unstable states in an eddying model Highlight Presentation
Seasonal Cycle and Annual Reversal of the Somali Current in an Eddy-Resolving Global Ocean Model Highlight Presentation
Will High-Resolution Global Ocean Models Benefit Coupled Predictions on Short-Range to Climate Timescales? Highlight Presentation