Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Variation of Aerosol Optical Properties and Trends over Cluj-Napoca, Romania, Based on 10 Years of AERONET Data and Satellite-Based Observations

Horatiu Ioan Stefanie
ORCID logo ,
Andrei Radovici
* ,
Alexandru Mereuta
,
Viorel Arghius
,
Horia Camarasan
,
Dan Costin
,
Camelia Sabina Botezan
,
Camelia Ginsca
,
Nicolae Ajtai
ORCID logo
Version 1 : Received: 22 April 2023 / Approved: 23 April 2023 / Online: 23 April 2023 (05:01:39 CEST)

A peer-reviewed article of this Preprint also exists.

Ștefănie, H.I.; Radovici, A.; Mereuță, A.; Arghiuș, V.; Cămărășan, H.; Costin, D.; Botezan, C.; Gînscă, C.; Ajtai, N. Variation of Aerosol Optical Properties over Cluj-Napoca, Romania, Based on 10 Years of AERONET Data and MODIS MAIAC AOD Product. Remote Sens. 2023, 15, 3072. Ștefănie, H.I.; Radovici, A.; Mereuță, A.; Arghiuș, V.; Cămărășan, H.; Costin, D.; Botezan, C.; Gînscă, C.; Ajtai, N. Variation of Aerosol Optical Properties over Cluj-Napoca, Romania, Based on 10 Years of AERONET Data and MODIS MAIAC AOD Product. Remote Sens. 2023, 15, 3072.

Abstract

Aerosols play an important role in Earth’s climate system, thus long time ground based measurements of aerosol optical properties are useful in understanding this role. 10 years of quality-assured measurements between 2010 and 2020 are used to investigate the aerosol climatology in the Cluj-Napoca area, in North-Western Romania. In this study, we analyze the Aerosol Optical Depth (AOD), Single Scattering Albedo (SSA) and Ångström exponent obtained by CIMEL sun photometer, part of the Aerosol Robotic Network (AERONET) to extract the seasonality of aerosols in the region and investigate the aerosol climatology of the area. Higher aerosol loads are found during July and August. Ångström exponent has the lowest values in April and May and the highest in August. The classification of aerosols using AERONET data is performed to separate dust, biomass burning, polluted urban, marine and continental dominant aerosol mixtures. In addition, the study presents the validation efforts of the Multi-Angle Implementation of Atmospheric Correction (MAIAC) dataset against AERONET AOD over 10 years period.

Keywords

aerosols; AERONET; Cluj-Napoca; climatology; MAIAC; AOD; MODIS

Subject

Environmental and Earth Sciences, Atmospheric Science and Meteorology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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