Articles | Volume 11, issue 8
Development and technical paper
01 Aug 2018
Development and technical paper |  | 01 Aug 2018

Quasi-Newton methods for atmospheric chemistry simulations: implementation in UKCA UM vn10.8

Emre Esentürk, Nathan Luke Abraham, Scott Archer-Nicholls, Christina Mitsakou, Paul Griffiths, Alex Archibald, and John Pyle

Data sets

The Climate Data Guide: SST data: NOAA High-resolution (0.25 x 0.25) Blended Analysis of Daily SST and Ice, OISSTv2 V. Banzon, R. Reynolds, and National Center for Atmospheric Research Staff

Model code and software

Daily high-resolution blended analyses for sea surface temperature R. W. Reynolds, T. M. Smith, C. Liu, D. B. Chelton, K. S. Casey, K. S., and M. G. Schlax

Short summary
An integral and expensive part of coupled climate model simulations is the gas-phase chemistry which gives rise to hundreds of coupled differential equations. We propose a method which improves the convergence and robustness properties of commonly used Newton–Raphson solvers. The method is flexible and can be appended to most algorithms. The approach can be useful for a broader community of computational scientists whose interests lie in solving systems with intensive interactive chemistry.