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@ARTICLE{Chang:858700,
author = {Chang, Kai-Lan and Cooper, Owen R. and West, J. Jason and
Serre, Marc L. and Schultz, Martin G. and Lin, Meiyun and
Marécal, Virginie and Josse, Béatrice and Deushi, Makoto
and Sudo, Kengo and Liu, Junhua and Keller, Christoph A.},
title = {{A} new method ({M}$^3${F}usion-v1) for combining
observations and multiple model output for an improved
estimate of the global surface ozone distribution},
journal = {Geoscientific model development discussions},
volume = {183},
issn = {1991-962X},
address = {Katlenburg-Lindau},
publisher = {Copernicus},
reportid = {FZJ-2018-07545},
pages = {1 - 34},
year = {2018},
abstract = {We have developed a new statistical approach (M3Fusion) for
combining surface ozone observations from thousands of
monitoring sites around the world with the output from
multiple atmospheric chemistry models to produce a global
surface ozone distribution with greater accuracy than can be
provided by any individual model. The ozone observations
from 4766 monitoring sites were provided by the Tropospheric
Ozone Assessment Report (TOAR) surface ozone database which
contains the world's largest collection of surface ozone
metrics. Output from six models was provided by the
participants of the Chemistry-Climate Model Initiative
(CCMI) and NASA's Global Modeling and Assimilation Office
(GMAO). We analyze the 6-month maximum of the maximum daily
8-hour average ozone value (DMA8) for relevance to ozone
health impacts. We interpolate the irregularly-spaced
observations onto a fine resolution grid by using integrated
nested Laplace approximations, and compare the ozone field
to each model in each world region. This method allows us to
produce a global surface ozone field based on TOAR
observations, which we then use to select the combination of
global models with the greatest skill in each of 8 world
regions; models with greater skill in a particular region
are given higher weight. This blended model product is
bias-corrected within two degrees of observation locations
to produce the final fused surface ozone product. We show
that our fused product has an improved mean squared error
compared to the simple multi-model ensemble mean.},
cin = {JSC},
ddc = {910},
cid = {I:(DE-Juel1)JSC-20090406},
pnm = {512 - Data-Intensive Science and Federated Computing
(POF3-512) / Earth System Data Exploration (ESDE)},
pid = {G:(DE-HGF)POF3-512 / G:(DE-Juel-1)ESDE},
typ = {PUB:(DE-HGF)16},
doi = {10.5194/gmd-2018-183},
url = {https://juser.fz-juelich.de/record/858700},
}