The regional aerosol-climate model REMO-HAM

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.

Schlagwörter

Fachgebiet (DDC)

550 - Geowissenschaften
500 - Naturwissenschaften und Mathematik

Projekt

Veranstaltung

Startdatum der Ausstellung

Enddatum der Ausstellung

Startdatum der Konferenz

Enddatum der Konferenz

Datum der letzten Prüfung

ISBN

ISSN

1991-9603
1991-959X

Sprache

Englisch

Während FHNW Zugehörigkeit erstellt

Nein

Zukunftsfelder FHNW

Publikationsstatus

Veröffentlicht

Begutachtung

Peer-Review der ganzen Publikation

Open Access-Status

Gold

Lizenz

Zitation

PIETIKÄINEN, Joni-Pekka, Denis O’DONNELL, Christopher TEICHMANN, Ute KARSTENS, Samuel PFEIFER, Jan KAZIL, Ralf PODZUN, Susann FIEDLER, Harri KOKKOLA, Wolfram BIRMILI, Colin D. O’DOWD, Urs BALTENSPERGER, Ernest WEINGARTNER, Robert GEHRIG, Gerald SPINDLER, Markku KULMALA, Johann FEICHTER, Daniela JACOB und Aatto LAAKSONEN, 2012. The regional aerosol-climate model REMO-HAM. Geoscientific Model Development. 1 November 2012. Bd. 5, Nr. 6, S. 1323–1339. DOI 10.5194/gmd-5-1323-2012. Verfügbar unter: https://doi.org/10.26041/fhnw-9366

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