Development of ozone climatology in KIM (Korean Integrated Model) using MLS data

Development of ozone climatology in KIM (Korean Integrated Model) using MLS data

Ozone plays an important role in earth weather and climate system. Due to its wide ranges of absorption spectra and its spatial and temporal distributions, ozone modifies radiative transfer in the atmosphere and interacts with the thermal system in the numerical weather prediction models. The KIM currently includes ozone climatology as a simple statistics of Global Modeling and Assimilation Office (GMAO) ozone data and new ozone climatology is needed to apply to global weather forecast systems. We developed new ozone climatology by nudging Micro Lim Sounder (MLS) observation data on the linear photochemical parameterization (LPP) of ozone in the KIM.

The KIM consists of a spectral-element non-hydrostatic dynamical core on a cubed sphere grid and a state-of-the-art physics parameterization package (Hong et al., 2018). In order to produce 3D prognostic ozone, the LPP (Cariolle and Teyssèdre, 2007) was implemented to KIM physics module. The MLS v3.3 are 3D global distribution data from August 2004 to December 2013 (5º x 5º x 55 layer by 2.7 km). MLS nudging on LPP by every 6 hours produces the assimilated ozone data to make ozone climatology of 3D global ozone distributions. New climatology was compared with the other ozone climatology and ozone sonde data.