Articles | Volume 21, issue 13
https://doi.org/10.5194/acp-21-10499-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-21-10499-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
13 Jul 2021
Research article |
| 13 Jul 2021
| 13 Jul 2021
Cloud drop number concentrations over the western North Atlantic Ocean: seasonal cycle, aerosol interrelationships, and other influential factors
Hossein Dadashazar
CORRESPONDING AUTHOR
Department of Chemical and Environmental Engineering, University of
Arizona, Tucson, AZ, USA
David Painemal
NASA Langley Research Center, Hampton, VA, USA
Science Systems and Applications, Inc., Hampton, VA, USA
Majid Alipanah
Department of Systems and Industrial Engineering, University of
Arizona, Tucson, AZ, USA
Michael Brunke
Department of Hydrology and Atmospheric Sciences, University of
Arizona, Tucson, AZ, USA
Seethala Chellappan
Rosenstiel School of Marine and Atmospheric Science, University of
Miami, Miami, FL, USA
Andrea F. Corral
Department of Chemical and Environmental Engineering, University of
Arizona, Tucson, AZ, USA
Ewan Crosbie
NASA Langley Research Center, Hampton, VA, USA
Science Systems and Applications, Inc., Hampton, VA, USA
Simon Kirschler
Institute of Atmospheric Physics, German Aerospace Center, Oberpfaffenhofen, Germany
Hongyu Liu
National Institute of Aerospace, Hampton, VA, USA
Richard H. Moore
NASA Langley Research Center, Hampton, VA, USA
Claire Robinson
NASA Langley Research Center, Hampton, VA, USA
Science Systems and Applications, Inc., Hampton, VA, USA
Amy Jo Scarino
NASA Langley Research Center, Hampton, VA, USA
Science Systems and Applications, Inc., Hampton, VA, USA
Michael Shook
NASA Langley Research Center, Hampton, VA, USA
Kenneth Sinclair
NASA Goddard Institute for Space Studies, New York, NY, USA
Universities Space Research Association, Columbia, MD, USA
K. Lee Thornhill
NASA Langley Research Center, Hampton, VA, USA
Christiane Voigt
Institute of Atmospheric Physics, German Aerospace Center, Oberpfaffenhofen, Germany
Hailong Wang
Atmospheric Sciences and Global Change Division, Pacific Northwest
National Laboratory, Richland, WA, USA
Edward Winstead
NASA Langley Research Center, Hampton, VA, USA
Science Systems and Applications, Inc., Hampton, VA, USA
Xubin Zeng
Department of Hydrology and Atmospheric Sciences, University of
Arizona, Tucson, AZ, USA
Luke Ziemba
NASA Langley Research Center, Hampton, VA, USA
Paquita Zuidema
Rosenstiel School of Marine and Atmospheric Science, University of
Miami, Miami, FL, USA
Armin Sorooshian
Department of Chemical and Environmental Engineering, University of
Arizona, Tucson, AZ, USA
Department of Hydrology and Atmospheric Sciences, University of
Arizona, Tucson, AZ, USA
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- Emission Reductions Significantly Reduce the Hemispheric Contrast in Cloud Droplet Number Concentration in Recent Two Decades Y. Cao et al. 10.1029/2022JD037417
- Overview and statistical analysis of boundary layer clouds and precipitation over the western North Atlantic Ocean S. Kirschler et al. 10.5194/acp-23-10731-2023
- High Spectral Resolution Lidar – generation 2 (HSRL-2) retrievals of ocean surface wind speed: methodology and evaluation S. Dmitrovic et al. 10.5194/amt-17-3515-2024
- Seasonal updraft speeds change cloud droplet number concentrations in low-level clouds over the western North Atlantic S. Kirschler et al. 10.5194/acp-22-8299-2022
- Pollution slightly enhances atmospheric cooling by low-level clouds in tropical West Africa V. Hahn et al. 10.5194/acp-23-8515-2023
- Aerosol and precipitation composition at a coastal New England site (Acadia National Park): implications for air quality and aerosol composition during cold air outbreaks A. Seckar-Martinez et al. 10.1039/D4EA00119B
- Dilution of Boundary Layer Cloud Condensation Nucleus Concentrations by Free Tropospheric Entrainment During Marine Cold Air Outbreaks F. Tornow et al. 10.1029/2022GL098444
- Spatially coordinated airborne data and complementary products for aerosol, gas, cloud, and meteorological studies: the NASA ACTIVATE dataset A. Sorooshian et al. 10.5194/essd-15-3419-2023
- The occurrence of lower-than-expected bulk NCCN values over the marginal seas of China - Implications for competitive activation of marine aerosols J. Gong et al. 10.1016/j.scitotenv.2022.159938
- Untangling the influence of Antarctic and Southern Ocean life on clouds M. Mallet et al. 10.1525/elementa.2022.00130
- Relationships between supermicrometer particle concentrations and cloud water sea salt and dust concentrations: analysis of MONARC and ACTIVATE data M. Gonzalez et al. 10.1039/D2EA00049K
- Investigating the development of clouds within marine cold-air outbreaks R. Murray-Watson et al. 10.5194/acp-23-9365-2023
- Wintertime Synoptic Patterns of Midlatitude Boundary Layer Clouds Over the Western North Atlantic: Climatology and Insights From In Situ ACTIVATE Observations D. Painemal et al. 10.1029/2022JD037725
- Machine-Learning Based Analysis of Liquid Water Path Adjustments to Aerosol Perturbations in Marine Boundary Layer Clouds Using Satellite Observations L. Zipfel et al. 10.3390/atmos13040586
- Aircraft Observations of Turbulence in Cloudy and Cloud‐Free Boundary Layers Over the Western North Atlantic Ocean From ACTIVATE and Implications for the Earth System Model Evaluation and Development M. Brunke et al. 10.1029/2022JD036480
- Aerosol first indirect effect of African smoke at the cloud base of marine cumulus clouds over Ascension Island, southern Atlantic Ocean M. de Graaf et al. 10.5194/acp-23-5373-2023
- Analysis of the cloud fraction adjustment to aerosols and its dependence on meteorological controls using explainable machine learning Y. Jia et al. 10.5194/acp-24-13025-2024
- Polarimeter + Lidar–Derived Aerosol Particle Number Concentration J. Schlosser et al. 10.3389/frsen.2022.885332
- Variations in Cloud Concentration Nuclei Related to Continental Air Pollution Control and Maritime Fuel Regulation over the Northwest Pacific Ocean L. Sun et al. 10.3390/atmos15080972
- Analysis of MONARC and ACTIVATE Airborne Aerosol Data for Aerosol-Cloud Interaction Investigations: Efficacy of Stairstepping Flight Legs for Airborne In Situ Sampling H. Dadashazar et al. 10.3390/atmos13081242
- Organic enrichment in droplet residual particles relative to out of cloud over the northwestern Atlantic: analysis of airborne ACTIVATE data H. Dadashazar et al. 10.5194/acp-22-13897-2022
- Long-range transported continental aerosol in the eastern North Atlantic: three multiday event regimes influence cloud condensation nuclei F. Gallo et al. 10.5194/acp-23-4221-2023
- A comprehensive analysis of new particle formation across the northwest Atlantic: Analysis of ACTIVATE airborne data S. Namdari et al. 10.1016/j.atmosenv.2024.120831
- Attribution of Observed Recent Decrease in Low Clouds Over the Northeastern Pacific to Cloud‐Controlling Factors H. Andersen et al. 10.1029/2021GL096498
23 citations as recorded by crossref.
- Emission Reductions Significantly Reduce the Hemispheric Contrast in Cloud Droplet Number Concentration in Recent Two Decades Y. Cao et al. 10.1029/2022JD037417
- Overview and statistical analysis of boundary layer clouds and precipitation over the western North Atlantic Ocean S. Kirschler et al. 10.5194/acp-23-10731-2023
- High Spectral Resolution Lidar – generation 2 (HSRL-2) retrievals of ocean surface wind speed: methodology and evaluation S. Dmitrovic et al. 10.5194/amt-17-3515-2024
- Seasonal updraft speeds change cloud droplet number concentrations in low-level clouds over the western North Atlantic S. Kirschler et al. 10.5194/acp-22-8299-2022
- Pollution slightly enhances atmospheric cooling by low-level clouds in tropical West Africa V. Hahn et al. 10.5194/acp-23-8515-2023
- Aerosol and precipitation composition at a coastal New England site (Acadia National Park): implications for air quality and aerosol composition during cold air outbreaks A. Seckar-Martinez et al. 10.1039/D4EA00119B
- Dilution of Boundary Layer Cloud Condensation Nucleus Concentrations by Free Tropospheric Entrainment During Marine Cold Air Outbreaks F. Tornow et al. 10.1029/2022GL098444
- Spatially coordinated airborne data and complementary products for aerosol, gas, cloud, and meteorological studies: the NASA ACTIVATE dataset A. Sorooshian et al. 10.5194/essd-15-3419-2023
- The occurrence of lower-than-expected bulk NCCN values over the marginal seas of China - Implications for competitive activation of marine aerosols J. Gong et al. 10.1016/j.scitotenv.2022.159938
- Untangling the influence of Antarctic and Southern Ocean life on clouds M. Mallet et al. 10.1525/elementa.2022.00130
- Relationships between supermicrometer particle concentrations and cloud water sea salt and dust concentrations: analysis of MONARC and ACTIVATE data M. Gonzalez et al. 10.1039/D2EA00049K
- Investigating the development of clouds within marine cold-air outbreaks R. Murray-Watson et al. 10.5194/acp-23-9365-2023
- Wintertime Synoptic Patterns of Midlatitude Boundary Layer Clouds Over the Western North Atlantic: Climatology and Insights From In Situ ACTIVATE Observations D. Painemal et al. 10.1029/2022JD037725
- Machine-Learning Based Analysis of Liquid Water Path Adjustments to Aerosol Perturbations in Marine Boundary Layer Clouds Using Satellite Observations L. Zipfel et al. 10.3390/atmos13040586
- Aircraft Observations of Turbulence in Cloudy and Cloud‐Free Boundary Layers Over the Western North Atlantic Ocean From ACTIVATE and Implications for the Earth System Model Evaluation and Development M. Brunke et al. 10.1029/2022JD036480
- Aerosol first indirect effect of African smoke at the cloud base of marine cumulus clouds over Ascension Island, southern Atlantic Ocean M. de Graaf et al. 10.5194/acp-23-5373-2023
- Analysis of the cloud fraction adjustment to aerosols and its dependence on meteorological controls using explainable machine learning Y. Jia et al. 10.5194/acp-24-13025-2024
- Polarimeter + Lidar–Derived Aerosol Particle Number Concentration J. Schlosser et al. 10.3389/frsen.2022.885332
- Variations in Cloud Concentration Nuclei Related to Continental Air Pollution Control and Maritime Fuel Regulation over the Northwest Pacific Ocean L. Sun et al. 10.3390/atmos15080972
- Analysis of MONARC and ACTIVATE Airborne Aerosol Data for Aerosol-Cloud Interaction Investigations: Efficacy of Stairstepping Flight Legs for Airborne In Situ Sampling H. Dadashazar et al. 10.3390/atmos13081242
- Organic enrichment in droplet residual particles relative to out of cloud over the northwestern Atlantic: analysis of airborne ACTIVATE data H. Dadashazar et al. 10.5194/acp-22-13897-2022
- Long-range transported continental aerosol in the eastern North Atlantic: three multiday event regimes influence cloud condensation nuclei F. Gallo et al. 10.5194/acp-23-4221-2023
- A comprehensive analysis of new particle formation across the northwest Atlantic: Analysis of ACTIVATE airborne data S. Namdari et al. 10.1016/j.atmosenv.2024.120831
Latest update: 13 Dec 2024
Short summary
This study investigates the seasonal cycle of cloud drop number concentration (Nd) over the western North Atlantic Ocean (WNAO) using multiple datasets. Reasons for the puzzling discrepancy between the seasonal cycles of Nd and aerosol concentration were identified. Results indicate that Nd is highest in winter (when aerosol proxy values are often lowest) due to conditions both linked to cold-air outbreaks and that promote greater droplet activation.
This study investigates the seasonal cycle of cloud drop number concentration (Nd) over the...
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