English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Global ocean [in "State of the Climate 2021"]

Johnson, G. C., & Lumpkin, R. (Eds.). (2022). Global ocean [in "State of the Climate 2021"]. Bulletin of the American Meteorological Society, 103(8, Spec. Suppl.), S143-S191. doi:10.1175/BAMS-D-21-0012.1.

Item is

Files

show Files
hide Files
:
bams-BAMS-D-22-0072.1.pdf (Publisher version), 3MB
Name:
bams-BAMS-D-22-0072.1.pdf
Description:
-
OA-Status:
Miscellaneous
Visibility:
Public
MIME-Type / Checksum:
application/pdf / [MD5]
Technical Metadata:
Copyright Date:
2022
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Johnson, Gregory C., Editor
Lumpkin, Rick, Editor
Boyer, Tim, Contributor
Bringas, Francis, Contributor
Cetinić, Ivona, Contributor
Chambers, Don P., Contributor
Cheng, Lijing, Contributor
Dong, Shenfu, Contributor
Feely, Richard A., Contributor
Fox-Kemper, Baylor, Contributor
Frajka-Williams, Eleanor, Contributor
Franz, Bryan A., Contributor
Fu, Yao, Contributor
Gao, Meng, Contributor
Garg, Jay, Contributor
Gilson, John, Contributor
Goni, Gustavo, Contributor
Hamlington, Benjamin D., Contributor
Hewitt, Helene T., Contributor
Hobbs, William R., Contributor
Hu, Zeng-Zhen, ContributorHuang, Boyin, ContributorJevrejeva, Svetlana, ContributorJohns, William E., ContributorKatsunari, Sato, ContributorKennedy, John J., ContributorKersalé, Marion, ContributorKillick, Rachel E., ContributorLeuliette, Eric, ContributorLocarnini, Ricardo, ContributorLozier, M. Susan, ContributorLyman, John M., ContributorMerrifield, Mark A., ContributorMishonov, Alexey, ContributorMitchum, Gary T., ContributorMoat, Ben I., ContributorNerem, R. Steven, ContributorNotz, Dirk1, Contributor                 Perez, Renellys C., ContributorPurkey, Sarah G., ContributorRayner, Darren, ContributorReagan, James, ContributorSchmid, Claudia, ContributorSiegel, David A., ContributorSmeed, David A., ContributorStackhouse, Paul W., ContributorSweet, William, ContributorThompson, Philip R., ContributorVolkov, Denis L., ContributorWanninkhof, Rik, ContributorWeller, Robert A., ContributorWen, Caihong, ContributorWestberry, Toby K., ContributorWidlansky, Matthew J., ContributorWillis, Josh K., ContributorYu, Lisan, ContributorZhang, Huai-Min, Contributor more..
Affiliations:
1MPI for Meteorology, Max Planck Society, Bundesstraße 53, 20146 Hamburg, DE, ou_913545              

Content

show
hide
Free keywords: -
 Abstract: During spring 2020, the COVID-19 pandemic caused massive reductions in emissions from industry, ground and airborne transportation. To explore the resulting atmospheric composition changes, we conducted the BLUESKY campaign with two research aircraft and measured trace gases, aerosols, and cloud properties from the boundary layer to the lower stratosphere. From 16 May to 9 June 2020, we performed 20 flights in the early COVID-19 lockdown phase over Europe and the Atlantic Ocean. We found up to 50% reductions in boundary layer nitrogen dioxide concentrations in urban areas from GOME-2B satellite data, along with carbon monoxide reductions in the pollution hot spots. We measured 20 to 70% reductions in total reactive nitrogen, carbon monoxide and fine mode aerosol concentration in profiles over German cities compared to a 10-year data set from passenger aircraft. The total aerosol mass was significantly reduced below 5 km altitude, and the organic aerosol fraction also aloft, indicative of decreased organic precursor gas emissions. The reduced aerosol optical thickness caused a perceptible shift in sky color towards the blue part of the spectrum (hence BLUESKY) and increased shortwave radiation at the surface. We find that the 80% decline in air traffic led to substantial reductions in nitrogen oxides at cruise altitudes, in contrail cover, and in resulting radiative forcing. The light extinction and depolarization by cirrus were also reduced in regions with substantially decreased air traffic. General circulation-chemistry model simulations indicate good agreement with the measurements when applying a reduced emission scenario. The comprehensive BLUESKY dataset documents the major impact of anthropogenic emissions on the atmospheric composition.

Details

show
hide
Language(s): eng - English
 Dates: 2022-03-30
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1175/BAMS-D-21-0012.1
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Bulletin of the American Meteorological Society
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: American Meteorological Society
Pages: - Volume / Issue: 103 (8, Spec. Suppl.) Sequence Number: - Start / End Page: S143 - S191 Identifier: ISSN: 0003-0007
CoNE: https://pure.mpg.de/cone/journals/resource/954925377920