Mapping the dependence of black carbon radiative forcing on emission region and season

Räisänen, Petri; Merikanto, Joonas; Makkonen, Risto; Savolahti, Mikko; Kirkevåg, Alf; Sand, Maria; Seland, Øyvind; Partanen, Antti-Ilari

doi:https://doi.org/10.5194/acp-22-11579-2022

Articles | Volume 22, issue 17

https://doi.org/10.5194/acp-22-11579-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-22-11579-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 17

Research article

|

08 Sep 2022

Research article |

| 08 Sep 2022

Mapping the dependence of black carbon radiative forcing on emission region and season

Petri Räisänen, Joonas Merikanto, Risto Makkonen, Mikko Savolahti, Alf Kirkevåg, Maria Sand, Øyvind Seland, and Antti-Ilari Partanen

Supplement

https://doi.org/10.5194/acp-22-11579-2022-supplement

Data sets

Data and code for the manuscript "Mapping the dependence of BC radiative forcing on emission region and season" by Petri Räisänen et al. (submitted to ACP) Petri Räisänen https://doi.org/10.23728/FMI-B2SHARE.37E9742A67B8415E8F8102A8D9757F6B

Model code and software

BC radiative forcing and climate response tool, version 1.0.0 Petri Räisänen https://doi.org/10.5281/zenodo.6461647

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Short summary

A climate model is used to evaluate how the radiative forcing (RF) associated with black carbon (BC) emissions depends on the latitude, longitude, and seasonality of emissions. It is found that both the direct RF (BC absorption of solar radiation in air) and snow RF (BC absorption in snow/ice) depend strongly on the emission region and season. The results suggest that, for a given mass of BC emitted, climatic impacts are likely to be largest for high-latitude emissions due to the large snow RF.