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The regional aerosol-climate model REMO-HAM
- Source :
- Geoscientific Model Development, Geoscientific Model Development, 5 (6), Pietikaeinen, J.-P.; O´Donnell, D.; Teichmann, C.; Karstens, U.; Pfeifer, S.; Kazil, J.; Podzun, R.; Fiedler, S.; Kokkola, H.; Birmili, W.; O´Dowd, C.; Baltensperger, U.; Weingartner, E.; Gehrig, R.; Spindler, G.; Kulmala, M.; Feichter, J.; Jacob, D.; Laaksonen, A.: The regional aerosol-climate model REMO-HAM. In: Geoscientific Model Development. Vol. 5 (2012) 6, 1323-1339. (DOI: 10.5194/gmd-5-1323-2012), Geoscientific Model Development, Vol 5, Iss 6, Pp 1323-1339 (2012)
- Publication Year :
- 2012
-
Abstract
- REMO-HAM is a new regional aerosol-climate model. It is based on the REMO regional climate model and includes most of the major aerosol processes. The structure for aerosol is similar to the global aerosol-climate model ECHAM5-HAM, for example the aerosol module HAM is coupled with a two-moment stratiform cloud scheme. On the other hand, REMO-HAM does not include an online coupled aerosol-radiation nor a secondary organic aerosol module. In this work, we evaluate the model and compare the results against ECHAM5-HAM and measurements. Four different measurement sites were chosen for the comparison of total number concentrations, size distributions and gas phase sulfur dioxide concentrations: Hyytiälä in Finland, Melpitz in Germany, Mace Head in Ireland and Jungfraujoch in Switzerland. REMO-HAM is run with two different resolutions: 50 × 50 km2 and 10 × 10 km2. Based on our simulations, REMO-HAM is in reasonable agreement with the measured values. The differences in the total number concentrations between REMO-HAM and ECHAM5-HAM can be mainly explained by the difference in the nucleation mode. Since we did not use activation nor kinetic nucleation for the boundary layer, the total number concentrations are somewhat underestimated. From the meteorological point of view, REMO-HAM represents the precipitation fields and 2 m temperature profile very well compared to measurement. Overall, we show that REMO-HAM is a functional aerosol-climate model, which will be used in further studies.
- Subjects :
- 010504 meteorology & atmospheric sciences
Meteorology
Nucleation mode
0207 environmental engineering
Nucleation
02 engineering and technology
general-circulation model
cloud microphysics
010501 environmental sciences
Atmospheric sciences
01 natural sciences
Gas phase
back trajectories analysis
Precipitation
020701 environmental engineering
dry deposition parameterization
stratospheric conditions
Physics::Atmospheric and Oceanic Physics
0105 earth and related environmental sciences
particle formation
lcsh:QE1-996.5
boundary-layer
Aerosol
lcsh:Geology
nucleation events
Boundary layer
small implicit diffusion
number concentrations
13. Climate action
Environmental science
Climate model
Subjects
Details
- ISSN :
- 1991959X
- Database :
- OpenAIRE
- Journal :
- Geoscientific Model Development, Geoscientific Model Development, 5 (6), Pietikaeinen, J.-P.; O´Donnell, D.; Teichmann, C.; Karstens, U.; Pfeifer, S.; Kazil, J.; Podzun, R.; Fiedler, S.; Kokkola, H.; Birmili, W.; O´Dowd, C.; Baltensperger, U.; Weingartner, E.; Gehrig, R.; Spindler, G.; Kulmala, M.; Feichter, J.; Jacob, D.; Laaksonen, A.: The regional aerosol-climate model REMO-HAM. In: Geoscientific Model Development. Vol. 5 (2012) 6, 1323-1339. (DOI: 10.5194/gmd-5-1323-2012), Geoscientific Model Development, Vol 5, Iss 6, Pp 1323-1339 (2012)
- Accession number :
- edsair.doi.dedup.....99e57435b690c651b71ca6b117d5f654