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Sulphur simulations for East Asia using the MATCH model with meteorological data from ECMWF
SMHI, Research Department, Air quality.ORCID iD: 0000-0002-4695-1106
2000 (English)Report (Other academic)
Abstract [en]

As part of a model intercomparison exercise, with participants from a number of Asian, European and American institutes, sulphur transport and conversion calculations were conducted over an East Asian domain for 2 different months in 1993. All participants used the same emission inventory and simulated concentration and deposition at a number of prescribed geographic locations. The participants were asked to run their respective model both with standard parameters, and with a set of given parameters, in order to exarnine the different behaviour of the models. The study included comparison with measured data and model-to-model intercomparisons, notably source-receptor relationships.

We hereby describe the MATCH model, used in the study, and report some typical results. We find that although the standard and the prescribed set of model parameters differed significantly in terms of sulphur conversion and wet scavenging rate, the resulting change in atmospheric concentrations and surface depositions only change marginally. We show that it is often more critical to choose a representative gridbox value than selecting a parameter from the suite available.

  1. The modelled, near-surface, atmospheric concentration of sulphur in eastem China is typically 5-10 μg S m-3, with large areas exceeding 20 μg S m-3. In southem Japan the values range from 2-5 μg Sm-3. Atmospheric SO2  dominates over sulphate near the emission regions while sulphate concentrations are higher over e.g. the western Pacific. The sulphur deposition exceeds several g sulphur m-2 year-1 in large areas of China. Southem Japan receives 0.5-1 g S m-2 year-1. In January, the total wet deposition roughly equals the dry deposition, in May - when it rains more in the domain - total wet deposition is ca. 50% larger than total dry deposition.
Place, publisher, year, edition, pages
SMHI , 2000. , p. 33
Series
RMK: Report Meteorology and Climatology, ISSN 0347-2116 ; 88
Keywords [en]
MATCH, sulphur, transport modelling, acid depostion, East Asia
National Category
Meteorology and Atmospheric Sciences
Research subject
Meteorology; Climate
Identifiers
URN: urn:nbn:se:smhi:diva-2356Local ID: Meteorologi, Rapporter, Serie RMKOAI: oai:DiVA.org:smhi-2356DiVA, id: diva2:947649
Available from: 2000-05-13 Created: 2016-07-08 Last updated: 2020-05-04Bibliographically approved

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Engardt, Magnuz

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Citation style
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