神戸大学附属図書館デジタルアーカイブ
入力補助
English
カテゴリ
学内刊行物
ランキング
アクセスランキング
ダウンロードランキング
https://hdl.handle.net/20.500.14094/90007237
このアイテムのアクセス数:
22
件
(
2024-04-19
19:40 集計
)
閲覧可能ファイル
ファイル
フォーマット
サイズ
閲覧回数
説明
90007237 (fulltext)
pdf
5.29 MB
17
メタデータ
ファイル出力
メタデータID
90007237
アクセス権
open access
出版タイプ
Version of Record
タイトル
Rapid reduction in black carbon emissions from China: evidence from 2009-2019 observations on Fukue Island, Japan
著者
Kanaya, Yugo ; Yamaji, Kazuyo ; Miyakawa, Takuma ; Taketani, Fumikazu ; Zhu, Chunmao ; Choi, Yongjoo ; Komazaki, Yuichi ; Ikeda, Kohei ; Kondo, Yutaka ; Klimont, Zbigniew
著者名
Kanaya, Yugo
著者ID
A1617
研究者ID
1000040399580
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/search/detail?systemId=76546041622d52ed520e17560c007669
著者名
Yamaji, Kazuyo
山地, 一代
ヤマジ, カズヨ
所属機関名
海事科学研究科
著者名
Miyakawa, Takuma
著者名
Taketani, Fumikazu
著者名
Zhu, Chunmao
著者名
Choi, Yongjoo
著者名
Komazaki, Yuichi
著者名
Ikeda, Kohei
著者名
Kondo, Yutaka
著者名
Klimont, Zbigniew
収録物名
Atmospheric Chemistry and Physics
巻(号)
20(11)
ページ
6339-6356
出版者
Copernicus Publications
刊行日
2020-06-05
公開日
2020-07-16
抄録
A long-term, robust observational record of atmospheric black carbon (BC) concentrations at Fukue Island for 2009-2019 was produced by unifying the data from a continuous soot monitoring system (COSMOS) and a Multi-Angle Absorption Photometer (MAAP). This record was then used to analyze emission trends from China. We identified a rapid reduction in BC concentrations of (−5.8±1.5) % yr(-1) or -48 % from 2010 to 2018. We concluded that an emission change of (−5.3±0.7) % yr(-1), related to changes in China of as much as -4.6 % yr(-1), was the main underlying driver. This evaluation was made after correcting for the interannual meteorological variability (IAV) by using the regional atmospheric chemistry model simulations from the Weather Research and Forecasting (WRF) and Community Multiscale Air Quality (CMAQ) models (collectively WRF/CMAQ) with the constant emissions. This resolves the current fundamental disagreements about the sign of the BC emissions trend from China over the past decade as assessed from bottom-up emission inventories. Our analysis supports inventories reflecting the governmental clean air actions after 2010 (e.g., MEIC1.3, ECLIPSE versions 5a and 6b, and the Regional Emission inventory in ASia (REAS) version 3.1) and recommends revisions to those that do not (e.g., Community Emissions Data System - CEDS). Our estimated emission trends were fairly uniform across seasons but diverse among air mass origins. Stronger BC reductions, accompanied by a reduction in carbon monoxide (CO) emissions, occurred in regions of south-central East China, while weaker BC reductions occurred in north-central East China and northeastern China. Prior to 2017, the BC and CO emissions trends were both unexpectedly positive in northeastern China during winter months, which possibly influenced the climate at higher latitudes. The pace of the estimated emissions reduction over China surpasses the Shared Socioeconomic Pathways (SSPs with reference to SSP1, specifically) scenarios for 2015-2030, which suggests highly successful emission control policies. At Fukue Island, the BC fraction of fine particulate matter (PM2.5) also steadily decreased over the last decade. This suggests that reductions in BC emissions started without significant delay when compared to other pollutants such as NOx and SO2, which are among the key precursors of scattering PM2.5.
カテゴリ
海事科学研究科
学術雑誌論文
権利
© Author(s) 2020.
This work is distributed under the Creative Commons Attribution 4.0 License.
詳細を表示
資源タイプ
journal article
言語
English (英語)
ISSN
1680-7316
OPACで所蔵を検索
CiNiiで学外所蔵を検索
eISSN
1680-7324
OPACで所蔵を検索
CiNiiで学外所蔵を検索
NCID
AA12038447
OPACで所蔵を検索
CiNiiで表示
関連情報
DOI
https://doi.org/10.5194/acp-20-6339-2020
ホームへ戻る