The global aerosol–climate model ECHAM6.3–HAM2.3 – Part 1: Aerosol evaluation
We introduce and evaluate aerosol simulations with the global aerosol–climate model ECHAM6.3–HAM2.3, which is the aerosol component of the fully coupled aerosol–chemistry–climate model ECHAM–HAMMOZ. Both the host atmospheric climate model ECHAM6.3 and the aerosol model HAM2.3 were updated from previ...
主要な著者: | , , , , , , , , , , , , , , , , , |
---|---|
フォーマット: | Journal article |
出版事項: |
Copernicus Publications
2018
|
_version_ | 1826288406287613952 |
---|---|
author | Tegen, I Neubauer, D Ferrachat, S Siegenthaler-Le Drian, C Bey, I Schutgens, N Stier, P Watson-Parris, D Stanelle, T Schmidt, H Rast, S Kokkola, H Schultz, M Schroeder, S Daskalakis, N Barthel, S Heinold, B Lohmann, U |
author_facet | Tegen, I Neubauer, D Ferrachat, S Siegenthaler-Le Drian, C Bey, I Schutgens, N Stier, P Watson-Parris, D Stanelle, T Schmidt, H Rast, S Kokkola, H Schultz, M Schroeder, S Daskalakis, N Barthel, S Heinold, B Lohmann, U |
author_sort | Tegen, I |
collection | OXFORD |
description | We introduce and evaluate aerosol simulations with the global aerosol–climate model ECHAM6.3–HAM2.3, which is the aerosol component of the fully coupled aerosol–chemistry–climate model ECHAM–HAMMOZ. Both the host atmospheric climate model ECHAM6.3 and the aerosol model HAM2.3 were updated from previous versions. The updated version of the HAM aerosol model contains improved parameterizations of aerosol processes such as cloud activation, as well as updated emission fields for anthropogenic aerosol species and modifications in the online computation of sea salt and mineral dust aerosol emissions. Aerosol results from nudged and free-running simulations for the 10-year period 2003 to 2012 are compared to various measurements of aerosol properties. While there are regional deviations between the model and observations, the model performs well overall in terms of aerosol optical thickness, but may underestimate coarse-mode aerosol concentrations to some extent so that the modeled particles are smaller than indicated by the observations. Sulfate aerosol measurements in the US and Europe are reproduced well by the model, while carbonaceous aerosol species are biased low. Both mineral dust and sea salt aerosol concentrations are improved compared to previous versions of ECHAM–HAM. The evaluation of the simulated aerosol distributions serves as a basis for the suitability of the model for simulating aerosol–climate interactions in a changing climate. |
first_indexed | 2024-03-07T02:13:13Z |
format | Journal article |
id | oxford-uuid:a15a1e39-1b0b-426e-a22e-c1beac926d9e |
institution | University of Oxford |
last_indexed | 2024-03-07T02:13:13Z |
publishDate | 2018 |
publisher | Copernicus Publications |
record_format | dspace |
spelling | oxford-uuid:a15a1e39-1b0b-426e-a22e-c1beac926d9e2022-03-27T02:12:40ZThe global aerosol–climate model ECHAM6.3–HAM2.3 – Part 1: Aerosol evaluationJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a15a1e39-1b0b-426e-a22e-c1beac926d9eSymplectic Elements at OxfordCopernicus Publications2018Tegen, INeubauer, DFerrachat, SSiegenthaler-Le Drian, CBey, ISchutgens, NStier, PWatson-Parris, DStanelle, TSchmidt, HRast, SKokkola, HSchultz, MSchroeder, SDaskalakis, NBarthel, SHeinold, BLohmann, UWe introduce and evaluate aerosol simulations with the global aerosol–climate model ECHAM6.3–HAM2.3, which is the aerosol component of the fully coupled aerosol–chemistry–climate model ECHAM–HAMMOZ. Both the host atmospheric climate model ECHAM6.3 and the aerosol model HAM2.3 were updated from previous versions. The updated version of the HAM aerosol model contains improved parameterizations of aerosol processes such as cloud activation, as well as updated emission fields for anthropogenic aerosol species and modifications in the online computation of sea salt and mineral dust aerosol emissions. Aerosol results from nudged and free-running simulations for the 10-year period 2003 to 2012 are compared to various measurements of aerosol properties. While there are regional deviations between the model and observations, the model performs well overall in terms of aerosol optical thickness, but may underestimate coarse-mode aerosol concentrations to some extent so that the modeled particles are smaller than indicated by the observations. Sulfate aerosol measurements in the US and Europe are reproduced well by the model, while carbonaceous aerosol species are biased low. Both mineral dust and sea salt aerosol concentrations are improved compared to previous versions of ECHAM–HAM. The evaluation of the simulated aerosol distributions serves as a basis for the suitability of the model for simulating aerosol–climate interactions in a changing climate. |
spellingShingle | Tegen, I Neubauer, D Ferrachat, S Siegenthaler-Le Drian, C Bey, I Schutgens, N Stier, P Watson-Parris, D Stanelle, T Schmidt, H Rast, S Kokkola, H Schultz, M Schroeder, S Daskalakis, N Barthel, S Heinold, B Lohmann, U The global aerosol–climate model ECHAM6.3–HAM2.3 – Part 1: Aerosol evaluation |
title | The global aerosol–climate model ECHAM6.3–HAM2.3 – Part 1: Aerosol evaluation |
title_full | The global aerosol–climate model ECHAM6.3–HAM2.3 – Part 1: Aerosol evaluation |
title_fullStr | The global aerosol–climate model ECHAM6.3–HAM2.3 – Part 1: Aerosol evaluation |
title_full_unstemmed | The global aerosol–climate model ECHAM6.3–HAM2.3 – Part 1: Aerosol evaluation |
title_short | The global aerosol–climate model ECHAM6.3–HAM2.3 – Part 1: Aerosol evaluation |
title_sort | global aerosol climate model echam6 3 ham2 3 part 1 aerosol evaluation |
work_keys_str_mv | AT tegeni theglobalaerosolclimatemodelecham63ham23part1aerosolevaluation AT neubauerd theglobalaerosolclimatemodelecham63ham23part1aerosolevaluation AT ferrachats theglobalaerosolclimatemodelecham63ham23part1aerosolevaluation AT siegenthalerledrianc theglobalaerosolclimatemodelecham63ham23part1aerosolevaluation AT beyi theglobalaerosolclimatemodelecham63ham23part1aerosolevaluation AT schutgensn theglobalaerosolclimatemodelecham63ham23part1aerosolevaluation AT stierp theglobalaerosolclimatemodelecham63ham23part1aerosolevaluation AT watsonparrisd theglobalaerosolclimatemodelecham63ham23part1aerosolevaluation AT stanellet theglobalaerosolclimatemodelecham63ham23part1aerosolevaluation AT schmidth theglobalaerosolclimatemodelecham63ham23part1aerosolevaluation AT rasts theglobalaerosolclimatemodelecham63ham23part1aerosolevaluation AT kokkolah theglobalaerosolclimatemodelecham63ham23part1aerosolevaluation AT schultzm theglobalaerosolclimatemodelecham63ham23part1aerosolevaluation AT schroeders theglobalaerosolclimatemodelecham63ham23part1aerosolevaluation AT daskalakisn theglobalaerosolclimatemodelecham63ham23part1aerosolevaluation AT barthels theglobalaerosolclimatemodelecham63ham23part1aerosolevaluation AT heinoldb theglobalaerosolclimatemodelecham63ham23part1aerosolevaluation AT lohmannu theglobalaerosolclimatemodelecham63ham23part1aerosolevaluation AT tegeni globalaerosolclimatemodelecham63ham23part1aerosolevaluation AT neubauerd globalaerosolclimatemodelecham63ham23part1aerosolevaluation AT ferrachats globalaerosolclimatemodelecham63ham23part1aerosolevaluation AT siegenthalerledrianc globalaerosolclimatemodelecham63ham23part1aerosolevaluation AT beyi globalaerosolclimatemodelecham63ham23part1aerosolevaluation AT schutgensn globalaerosolclimatemodelecham63ham23part1aerosolevaluation AT stierp globalaerosolclimatemodelecham63ham23part1aerosolevaluation AT watsonparrisd globalaerosolclimatemodelecham63ham23part1aerosolevaluation AT stanellet globalaerosolclimatemodelecham63ham23part1aerosolevaluation AT schmidth globalaerosolclimatemodelecham63ham23part1aerosolevaluation AT rasts globalaerosolclimatemodelecham63ham23part1aerosolevaluation AT kokkolah globalaerosolclimatemodelecham63ham23part1aerosolevaluation AT schultzm globalaerosolclimatemodelecham63ham23part1aerosolevaluation AT schroeders globalaerosolclimatemodelecham63ham23part1aerosolevaluation AT daskalakisn globalaerosolclimatemodelecham63ham23part1aerosolevaluation AT barthels globalaerosolclimatemodelecham63ham23part1aerosolevaluation AT heinoldb globalaerosolclimatemodelecham63ham23part1aerosolevaluation AT lohmannu globalaerosolclimatemodelecham63ham23part1aerosolevaluation |