Doğu Akdeniz bölgesindeki aerosollerin iklimsel önemi

Download

TVRBME5EZzQ.pdf

Date

2009

Author

Kubilay, Nilgün
Koçak, Mustafa

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

180
views

115
downloads

The current study considers the spatial and temporal variability in aerosol water soluble ions (Na+ , NH4 + , K+ , Mg2+, Ca2+, Cl- , NO3 - , SO4 2-, C2O4 2 ) concentrations and aerosol optical measurements in the eastern Mediterranean, utilizing an extensive data library collected in 2003 at two stations along the Turkish (Erdemli) and Cretan (Finokalia) coastline. In addition, aerosol samples were collected aboard the research vessel’s BILIM II cruising the eastern Mediterranean, Aegean Sea, the Sea of Marmara and Black Sea during two periods in March-May 2008 (Cruise I) and September-October 2008 (Cruise II). During Cruise II aerosol sampling was performed both on board and at the Erdemli station simultaneously. The ionic concentrations of aerosols collected in 2003 at both stations indicated that the seasonal variability were related to precipitation events. The atmospheric concentrations of measured species (except those of marine origin) decreases to minimum values during winter, whereas, during dry summer months the lack of precipitation resulted in their accumulation in the atmosphere. During the transition periods, although there was still precipitation, crustal ions exhibited sporadic but intense concentration peaks due to the intrusion of dust from the Sahara and the Arabian Peninsula. Ground based aerosol optical measurements were conducted within framework of the Aerosol Robotic Network (AERONET)I program both at Erdemli and Finokolia. The measurements were used to identify and define predominant regional aerosol optical properties. A relationship between aerosol sulfate (nss-SO4 -2) and aerosol optical thickness (AOT440) at both stations denoted that sulfate particles are the main components of the optical thickness derived at 440 nm. Geometric mean concentrations of PM10, aerosol water soluble ions and elemental compositions determined in samples collected on board are at similar level with the concentrations reported for the coastal stations of Erdemli and Finokalia. High concentrations of aerosols (especially for crustal elements) collected during Cruise I relative to Cruise II corresponded to incursions of Saharan dust. The relative contribution of mineral dust, sea salt, ionic mass, organic and black carbon on PM10 mass concentrations was calculated and compared with Finokalia data.

Subject Keywords

Aerosol, Eastern Mediterranean, Chemical composition, Optical properties, Seasonal variation, Long-range transport

URI

https://app.trdizin.gov.tr/publication/project/detail/TVRBME5EZzQ
https://hdl.handle.net/11511/50004

Collections

Graduate School of Marine Sciences, Project and Design

Suggestions

OpenMETU
Core

A 15-YEAR CLIMATOLOGY OF AEROSOL OPTICAL AND PHYSICAL PROPERTIES AND NEAR-REAL TIME MEASUREMENTS OF WATER-SOLUBLE IONS IN PM2.5 AND THEIR PRECURSOR GASES IN THE ATMOSPHERE OVER THE EASTERN MEDITERRANEAN Tutsak, Ersin; Koçak , Mustafa; Department of Oceanography (2018-7-26) Long-term aerosol optical and micro physical properties obtained from AERONET sun/sky radiometer situated at the rural coastal site of Eastern Mediterranean between January 2000 and December 2014 were analyzed. Moreover, concentrations of SO42-, NH4+, NO3- (in PM2.5) and their precursor gases (SO2, NH3 and HNO3) were measured with a near real-time Ambient Ion Monitor-Ion Chromatography instrument in winter and summer of 2015. Air flow arriving at 1 km and 4 from Eastern Europe and Western Europe showed a ne...
Akdeniz ve Karadeniz’deki kirletici Düzeylerini etkileyen kaynak bölgelerinin Belirlenmesi. Güllü, Gülen; Günaydın, Gamze; Tuncel, Süleyman Gürdal (2001-10-01) Potential source regions of trace elements and major ions measured in the Mediterranean atmosphere were investigated by combining trajectory statistics with emission data reported in the literature. The frequency of air mass transport from different wind sectors was investigated at three selected sites in the eastern Mediterranean, western Mediterranean and Black Sea basins. The upper air mass movements showed fairly similar general features at all three sites, with very small eastern, southeastern and sout...
Seasonal variability of optical properties of aerosols in the Eastern Mediterranean Vrekoussis, M; Liakakou, E; Koçak, Mustafa; Kubilay, N; Oikonomou, K; Sciare, J; Mihalopoulos, N (2005-12-01) The aerosol optical properties (scattering and absorption coefficients) were investigated at two remote locations in the Eastern Mediterranean in conjunction with aerosol ion composition measurements: Finokalia in the Crete Island in Greece (March 2001-June 2002) and Erdemli in Turkey (July 1999-June 2000). Ambient light-scattering coefficient (sigma(sp-532 nm)) at Finokalia had a mean value of 50 +/- 23 Mm(-1) while at Erdemli this value was 90 +/- 160 Mm(-1), due to a severe dust event that occurred from ...
Study of Sorption of Alcohols on High Silica ZSM-35 Babuçcuoğlu, Yurdaer; Yücel, Hayrettin; Department of Chemical Engineering (2007) This study investigated the equilibrium sorption capacities and rates of sorption of some alcohols on Na- and/or H- form of ZSM-35 at different temperatures by gravimetric method using an electrobalance. The alcohols studied were methanol, ethanol, propan-1-ol, propan-2-ol, n-butanol. The ZSM-35 sample used in sorption experiments resulted from a study for synthesis of high silica ZSM-35 zeolite. This ZSM-35 sample was called as NaZSM-35. The influence of ion-exchange on the sorption capacity and kinetics w...
Effect of meteorology and transport on particle concentrations and size distribution in Eastern Mediterranean atmosphere Uzunpınar, Elif Sena; Tuncel, Süleyman Gürdal; İmamoğlu, İpek; Department of Environmental Engineering (2022-3-25) This study aims to examine the relationship between particle sizes and processes in the atmosphere and the effect of dust transport on particle size distribution. Number (0.2 μm to 32 μm) and mass (PM1, PM2.5, and PM10) concentrations were collected at rural (Mediterranean coast - Marmaris) and suburban (Central Anatolia - Ankara) stations between April 1, 2017, and October 31, 2018. The coarse particles were more dominant in the Ankara while the Marmaris contained relatively smaller-sized particles. The lo...

Citation Formats

N. Kubilay and M. Koçak, “Doğu Akdeniz bölgesindeki aerosollerin iklimsel önemi,” 2009. Accessed: 00, 2020. [Online]. Available: https://app.trdizin.gov.tr/publication/project/detail/TVRBME5EZzQ.