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AGU: Geophysical Research Letters

 

Index Terms

  • Atmospheric Composition and Structure: Aerosols and particles
  • Atmospheric Composition and Structure: Geochemical cycles
  • Atmospheric Composition and Structure: Transmission and scattering of radiation
  • Atmospheric Composition and Structure: Troposphere—constituent transport and chemistry

Abstract

GEOPHYSICAL RESEARCH LETTERS, VOL. 29, 1151, 4 PP., 2002
doi:10.1029/2001GL014092

Dust vertical distribution in the Caribbean during the Puerto Rico Dust Experiment

Jeffrey S. Reid

SPAWAR Systems Center-San Diego, San Diego CA USA

Douglas L. Westphal

Naval Research Laboratory, Monterey CA USA

John M. Livingston

SRI International, Menlo Park CA USA

Dennis L. Savoie

Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami FL USA

Hal B. Maring

Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami FL USA

Haflidi H. Jonsson

Naval Postgraduate School, Monterey CA USA

Daniel P. Eleuterio

Naval Postgraduate School, Monterey CA USA

James E. Kinney

SPAWAR Systems Center-San Diego, San Diego CA USA

Elizabeth A. Reid

Science & Technology Corp., Hampton VA USA

As part of Puerto Rico Dust Experiment (PRIDE), a Piper Navajo research aircraft, equipped with particle probes and an airborne Sun photometer, was deployed to Puerto Rico in July 2000. During the study, mid-visible optical depths in Puerto Rico due to dust reached 0.5. In the middle of the summer transport season, the vertical distributions of dust were similar to that commonly assumed in the region with dust concentrated in the Saharan Air Layer (SAL) aloft. However, during the first half of the study period, dust had the highest concentrations in the marine and convective boundary layers, with lower dust concentrations above the trade inversion despite the presence of a strong SAL. Supporting meteorology suggests that the state of the monsoon on the coast of Africa influences the nature of the vertical distribution of dust in the Caribbean.

Published 13 April 2002.

Citation: Reid, J. S., D. L. Westphal, J. M. Livingston, D. L. Savoie, H. B. Maring, H. H. Jonsson, D. P. Eleuterio, J. E. Kinney, and E. A. Reid (2002), Dust vertical distribution in the Caribbean during the Puerto Rico Dust Experiment, Geophys. Res. Lett., 29(7), 1151, doi:10.1029/2001GL014092.

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