English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Zendy Tools

Zendy Open

. Black carbon (BC) emissions play an important role in regional climatechange in the Arctic. It is necessary to pay attention to the impact oflong-range transport from regions outside the Arctic as BC emissions fromlocal sources in the Arctic were relatively small. The task forceHemispheric Transport of Air Pollution Phase 2 (HTAP2) set up a series ofsimulation scenarios to investigate the response of BC in a given region todifferent source regions. This study investigated the responses of Arctic BCconcentrations and surface temperature to 20 % anthropogenic emissionreductions from six regions in 2010 within the framework of HTAP2 based onensemble modeling results. Emission reductions from East Asia (EAS) had the most(monthly contributions: 0.2–1.5 ng m−3) significant impact on theArctic near-surface BC concentrations, while the monthly contributions fromEurope (EUR), Middle East (MDE), North America (NAM), Russia–Belarus–Ukraine(RBU), and South Asia (SAS) were 0.2–1.0, 0.001–0.01, 0.1–0.3, 0.1–0.7, and 0.0–0.2 ng m−3,respectively. The responses of the vertical profiles of the Arctic BC to thesix regions were found to be different due to multiple transport pathways.Emission reductions from NAM, RBU, EUR, and EAS mainly influenced the BCconcentrations in the low troposphere of the Arctic, while most of the BC in theupper troposphere of the Arctic derived from SAS. The response of the ArcticBC to emission reductions in six source regions became less significant withthe increase in the latitude. The benefit of BC emission reductions in termsof slowing down surface warming in the Arctic was evaluated by usingabsolute regional temperature change potential (ARTP). Compared to theresponse of global temperature to BC emission reductions, the response ofArctic temperature was substantially more sensitive, highlighting the needfor curbing global BC emissions.

atmospheric chemistry and physics

Responses of Arctic black carbon and surface temperature to multi-region emission reductions: a Hemispheric Transport of Air Pollution Phase 2 (HTAP2) ensemble modeling study