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Ground-based assessment of Total Ozone Mapping Spectrometer (TOMS) data for dust transport over the northeastern Mediterranean
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Date
2005-03-16
Author
Kubilay, N
Oguz, T
Koçak, Mustafa
Torres, O
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[ 1] 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 mu 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 mu 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 mu 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.
Subject Keywords
Mineral dust
,
Levantine Basin
,
Aerosol Index
,
Atlantic
,
Variability
,
Phosphorus
,
Deposition
,
Africa
,
Export
,
Sea
URI
https://hdl.handle.net/11511/31801
Journal
GLOBAL BIOGEOCHEMICAL CYCLES
DOI
https://doi.org/10.1029/2004gb002370
Collections
Graduate School of Marine Sciences, Article
Citation Formats
IEEE
ACM
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MLA
BibTeX
N. Kubilay, T. Oguz, M. Koçak, and O. Torres, “Ground-based assessment of Total Ozone Mapping Spectrometer (TOMS) data for dust transport over the northeastern Mediterranean,”
GLOBAL BIOGEOCHEMICAL CYCLES
, vol. 19, no. 1, pp. 0–0, 2005, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/31801.