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Kubilay et al. 2005
Kubilay, N., Oguz, T., Koçak, M. and Torres, O. (2005). Ground-based assessment of Total Ozone Mapping Spectrometer (TOMS) data for dust transport over the northeastern Mediterranean. Global Biogeochemical Cycles 19: doi: 10.1029/2004GB002370. issn: 0886-6236.

Multiyear daily surface aerosol aluminum (Al) concentration and sunphotometer measurements at Erdemli (Turkey) sampling station were used to assess the performance of Absorbing Aerosol Index (AAI) and Aerosol Optical Thickness (AOT) retrieved from the daily Total Ozone Mapping Spectrometer (TOMS) over the northeastern Mediterranean. A total of 98 moderate-to-high intensity dust events with durations from 1 day to 1 week were identified by aerosol Al concentrations and/or TOMS-AAI above their threshold values of 1.0 ¿g m-3 and 0.5, respectively. Only 15 events were found to bring appreciable dust load into the northeastern Mediterranean, predominantly below the 850-hPa pressure level, and therefore were not detected effectively by TOMS. Eight of these events corresponded to short-range high intensity intrusions (Al > 3.0 ¿g m-3) from nearby dust sources of the Middle East and Arabian deserts, the rest (seven events) represented moderate-to-high intensity (Al > 1.0 ¿g m-3) long-range transport from North Africa. Given the highly complex dynamics of the region, the use of TOMS-AAI data is justified for monitoring Saharan dust transport characteristics in the northeastern Mediterranean. Moreover, the TOMS-AOT data were found to covary linearly with its counterpart obtained by the ground-based measurements (correlation coefficient 0.86, significant at <0.001), which lies within the range of estimates suggested by earlier studies.

BACKGROUND DATA FILES

Abstract

Keywords
Atmospheric Composition and Structure, Aerosols and particles (0345, 4801, 4906), Atmospheric Composition and Structure, Middle atmosphere, constituent transport and chemistry, Global Change, Remote sensing, Global Change, Atmosphere (0315, 0325), Oceanography, Biological and Chemical, Aerosols (0305, 4906), dust transport, northeastern Mediterranean, TOMS
Journal
Global Biogeochemical Cycles
http://www.agu.org/journals/gb/
Publisher
American Geophysical Union
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