SELECT * FROM pwn_ihpcf_person_info WHERE ihpcfusername = 'Changsheng' Changsheng ChenMontgomery Charter Chair Professor,School for Marine Science and Technology,University of Massachusetts-Dartmouth

Changsheng Chen

Montgomery Charter Chair Professor,School for Marine Science and Technology,University of Massachusetts-Dartmouth

Visiting Chair Professor, College of Atmospheric Sciences, Sun Yat-Sen University, Guangzhou, P. R. China; Montgomery Charter Chair Professor, University of Massachusetts, New Bedford, MA, USA. 1992: Ph.D in Physical Oceanography, Massachusetts Institute of Technology (MIT) and Woods Hole Oceanographic Institution (WHOI) Joint Program 1989: M.S. in Physical Oceanography, MIT 1983: M.S. in Marine Meteorology, Ocean University of China.


Talk Title:

A New Earth System Model with Implementation of High-resolution Global-regional-coastal Nested FVCOM


Talk Abstract:

The oceans play a critical role in determining the earth’s climate, and recent changes in climate have made in turn unusual variability of physical, biogeographic and ecosystem conditions in the ocean. Earth System Models (ESMs) are valuable tools for understanding the complexities of the Earth’s physical states and their long-term changes due to natural and anthropogenic factors. With limitation in resolving regional air-sea, shelf-basin, and ocean-land interaction processes, it is a major challenge for an ESM to capture the multi-scale oceanic processes relevant to global climate. A global-regional-coastal-estuarine-wetland nested FVCOM model system has been developed. This system features an unstructured grid, finite-volume numerical algorithm with accurate fitting of the complex coastal geometry and resolving spatial scales up to a few hundred meters in the global ocean. An interdisciplinary collaborative effort is being made at the Sun Yat-Sen University (SYSU) to implement this high-resolution FVCOM ocean model into the global ESMs (NCAR-CESM), with an aim at using the HPC at TianHe-II to simulate a) the multi-scale responses of the ocean to climate change and b) to establish the end-to-end coupled atmospheric and ocean forecast system for the China’s coast. This new ESM contains a high-resolution (up to ~17 m) coupled ocean-wave global-regional nested forecast model system. This system has been placed into the 24/7 forecast operations since May 2017. A description will be given for this new model system, followed with demonstrations for global and regional applications.


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