Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/20.500.11765/11650
Predicting the mineral composition of dust aerosols: Insights from elemental composition measured at the Izaña Observatory
Título : Predicting the mineral composition of dust aerosols: Insights from elemental composition measured at the Izaña Observatory
Autor : Pérez García-Pando, CarlosMiller, Ron L.Perlwitz, Jan P.Rodríguez González, Sergio ORCID RESEARCHERID Autor AEMETProspero, Joseph M.
Palabras clave : Mineral dust; Mineral aerosols; Izaña observatory; Soil particles
Fecha de publicación : 2016
Editor: American Geophysical Union
Citación : Geophysical Research Letters. 2016, 43(19), p. 10520-10529
Versión del editor: https://dx.doi.org/10.1002/2016GL069873
Resumen : Regional variations of dust mineral composition are fundamental to climate impacts but generally neglected in climate models. A challenge for models is that atlases of soil composition are derived from measurements following wet sieving, which destroys the aggregates potentially emitted from the soil. Aggregates are crucial to simulating the observed size distribution of emitted soil particles. We use an extension of brittle fragmentation theory in a global dust model to account for these aggregates. Our method reproduces the size-resolved dust concentration along with the approximately size-invariant fractional abundance of elements like Fe and Al in the decade-long aerosol record from the Izaña Observatory, off the coast of West Africa. By distinguishing between Fe in structural and free forms, we can attribute improved model behavior to aggregation of Fe and Al-rich clay particles. We also demonstrate the importance of size-resolved measurements along with elemental composition analysis to constrain models.
Patrocinador: This research was supported by the Department of Energy (DE-SC0006713), the NASA Modeling, Analysis and Prediction Program, and the Aerosol Global Atmospheric Watch program of Izaña Observatory, which has been funded by AEMET and several research projects of the Ministry of Economy and Competitiveness of Spain and the European Regional Development Fund (ERDF) including POLLINDUST (CGL2011-26259) and AEROATLAN (CGL2015-66229-P).
URI : http://hdl.handle.net/20.500.11765/11650
ISSN : 0094-8276
1944-8007
Colecciones: Artículos científicos 2015-2018


Ficheros en este ítem:
  Fichero Descripción Tamaño Formato  
2016GL069873.pdf
535,11 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo del ítem



Los ítems de Arcimis están protegidos por una Licencia Creative Commons, salvo que se indique lo contrario.

Repositorio Arcimis
Nota Legal Contacto y sugerencias