Articles | Volume 21, issue 13
Research article
13 Jul 2021
Research article |  | 13 Jul 2021

Cloud drop number concentrations over the western North Atlantic Ocean: seasonal cycle, aerosol interrelationships, and other influential factors

Hossein Dadashazar, David Painemal, Majid Alipanah, Michael Brunke, Seethala Chellappan, Andrea F. Corral, Ewan Crosbie, Simon Kirschler, Hongyu Liu, Richard H. Moore, Claire Robinson, Amy Jo Scarino, Michael Shook, Kenneth Sinclair, K. Lee Thornhill, Christiane Voigt, Hailong Wang, Edward Winstead, Xubin Zeng, Luke Ziemba, Paquita Zuidema, and Armin Sorooshian

Data sets

CERES Edition-2 Cloud Property Retrievals Using TRMM VIRS and Terra and Aqua MODIS Data - Part I: Algorithms ( P. Minnis, S. Sun-Mack, D. F. Young, P. W. Heck, D. P. Garber, Y. Chen, D. A. Spangenberg, R. F. Arduini, Q. Z. Trepte, W. L. Smith, J. K. Ayers, S. C. Gibson, W. F. Miller, G. Hong, V. Chakrapani, Y. Takano, K. N. Liou, Y. Xie, and P. Yang

CALIPSO LID L2 Standard HDF File - Version 3.30 CALIPSO

The CHRS Data Portal, an easily accessible public repository for PERSIANN global satellite precipitation data ( P. Nguyen, E. J. Shearer, H. Tran, M. Ombadi, N. Hayatbini, T. Palacios, P. Huynh, D. Braithwaite, G. Updegraff, K. Hsu, B. Kuligowski, W. S. Logan, and S. Sorooshian

MERRA-2 Global Modeling and Assimilation Office (GMAO)

The Two-Column Aerosol Project: Phase IOverview and impact of elevated aerosol layers on aerosol optical depth ( Berg, L. K., Fast, J. D., Barnard, J. C., et al.

ACTIVATE Falcon In Situ Aerosol Data NASA/LARC/SD/ASDC


ACTIVATE Falcon In-Situ Meteorological and Navigational Data NASA/LARC/SD/ASDC

Model code and software

Python Accumulated Local Effects package M. Jumelle, A. Kuhn-Regnier, S. Rajaratnam, and A. Mahima

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.
Final-revised paper