Apparent dust size discrepancy in aerosol reanalysis in north African dust after long-range transport

Kramer, Samantha J.; Alvarez, Claudia; Barkley, Anne E.; Colarco, Peter R.; Custals, Lillian; Delgadillo, Rodrigo; Gaston, Cassandra J.; Govindaraju, Ravi; Zuidema, Paquita

doi:https://doi.org/10.5194/acp-20-10047-2020

Articles | Volume 20, issue 16

https://doi.org/10.5194/acp-20-10047-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/acp-20-10047-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 16

Research article

|

28 Aug 2020

Research article |

| 28 Aug 2020

Apparent dust size discrepancy in aerosol reanalysis in north African dust after long-range transport

Samantha J. Kramer, Claudia Alvarez, Anne E. Barkley, Peter R. Colarco, Lillian Custals, Rodrigo Delgadillo, Cassandra J. Gaston, Ravi Govindaraju, and Paquita Zuidema

Data sets

Datasets contributing to Kramer et al., 2020: Apparent dust size discrepancy in aerosol reanalysis in north African dust after long-range transport S. J. Kramer, C. A. Alvarez, A. Barkley, P. Colarco, L. Custals, R. Delgadillo, C. J. Gaston, R. Govindaraju, and P. Zuidema https://doi.org/10.17604/1b5v-h184

Data contributing to Zuidema et al., 2019: "Is summer African dust arriving earlier at Barbados? The updated long-term in-situ dust mass concentration time series from Ragged Point, Barbados and Miami, Florida" P. Zuidema https://doi.org/10.17604/q3vf-8m31

Short summary

Comparisons of sea salt and size-resolved dust mass concentration measurements over southeast Florida to those from the MERRA-2/GEOS-5 FP aerosol reanalysis show the reanalysis depicts excessive sea salt and puts too much dust in larger intermediate sizes than do the measurements. The vertical distribution of the dust mass is approximately correct. The incorrect reanalysis aerosol speciation and dust sizes have implications for the modeling of their transport, deposition, and radiative impact.