Classification of Dust/Non-dust Particle from the Asian Dust Plumes and Retrieval of Microphysical Properties using Raman Lidar System

During the 18-month Central Asian Dust Experiment we conducted continuous lidar measurements at the Physical Technical Institute of the Academy of Sciences of Tajikistan in Dushanbe between 2015 and 2016. Mineral dust plumes from various source regions have been observed and characterized in terms of their occurrence, and their optical and microphysical properties with the Raman lidar PollyXT. Currently a new container-based lidar system is constructed which will be installed for continuous long-term measurements in Dushanbe.

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Study on the Variation of Optical Properties of Asian Dust Plumes according to their Transport Routes and Source Regions using Multi-wavelength Raman LIDAR System

Korean Journal of Remote Sensing ◽

10.7780/kjrs.2014.30.2.7 ◽

2014 ◽

Vol 30 (2) ◽

pp. 241-249 ◽

Cited By ~ 1

Author(s):

Sung-Kyun Shin ◽

Youngmin Noh ◽

Kwonho Lee ◽

Dongho Shin ◽

KwanChul Kim ◽

...

Keyword(s):

Optical Properties ◽

Asian Dust ◽

Raman Lidar ◽

Lidar System ◽

Source Regions ◽

Multi Wavelength

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Multi-wavelength Raman lidar, sunphotometric and aircraft measurements in combination with inversion models for the estimation of the aerosol optical and physico-chemical properties over Athens, Greece

Atmospheric Measurement Techniques Discussions ◽

10.5194/amtd-5-589-2012 ◽

2012 ◽

Vol 5 (1) ◽

pp. 589-625

Author(s):

R. E. Mamouri ◽

A. Papayannis ◽

V. Amiridis ◽

D. Müller ◽

P. Kokkalis ◽

...

Keyword(s):

Water Vapor ◽

Chemical Properties ◽

Urban Site ◽

Aircraft Measurements ◽

Raman Lidar ◽

Lidar System ◽

Aerosol Composition ◽

Microphysical Properties ◽

Multi Wavelength

Abstract. A novel procedure has been developed to retrieve, simultaneously, the optical, microphysical and chemical properties of tropospheric aerosols with a multi-wavelength Raman lidar system in the troposphere over an urban site (Athens, Greece: 37.9° N, 23.6° E, 200 m a.s.l.) using data obtained during the European Space Agency (ESA) THERMOPOLIS project which took place between 15–31 July 2009 over the Greater Athens Area (GAA). We selected to apply our procedure for a case study of intense aerosol layers occurred on 20–21 July 2009. The National Technical University of Athens (NTUA) EOLE 6-wavelength Raman lidar system has been used to provide the vertical profiles of the optical properties of aerosols (extinction and backscatter coefficients, lidar ratio) and the water vapor mixing ratio. An inversion algorithm was used to derive the mean aerosol microphysical properties (mean effective radius – reff), single-scattering albedo (ω) and mean complex refractive index (m) at selected heights in the 2–3 km height region. We found that reff was 0.3–0.4 μm, ω at 532 nm ranged from 0.63 to 0.88 and m ranged from 1.45 + 0.015i to 1.56 + 0.05i, in good accordance with in situ aircraft measurements. The final data set of the aerosol microphysical properties along with the water vapor and temperature profiles were incorporated into the ISORROPIA model to infer an in situ aerosol composition consistent with the retrieved m and ω values. The retrieved aerosol chemical composition in the 2–3 km height region gave a variable range of sulfate (0–60%) and organic carbon (OC) content (0–50%), although the OC content increased (up to 50%) and the sulfate content dropped (up to 30%) around 3 km height; in connection with the retrieved low ω value (0.63), indicates the presence of absorbing biomass burning smoke mixed with urban haze. Finally, the retrieved aerosol microphysical properties were compared with column-integrated sunphotometer data.

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Retrieval of Vertical Single-scattering albedo of Asian dust using Multi-wavelength Raman Lidar System

Korean Journal of Remote Sensing ◽

10.7780/kjrs.2013.29.4.7 ◽

2013 ◽

Vol 29 (4) ◽

pp. 415-421 ◽

Cited By ~ 3

Author(s):

Youngmin Noh ◽

Chulkyu Lee ◽

Kwanchul Kim ◽

Sungkyun Shin ◽

Dongho Shin ◽

...

Keyword(s):

Single Scattering ◽

Asian Dust ◽

Single Scattering Albedo ◽

Raman Lidar ◽

Lidar System ◽

Multi Wavelength

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Retrieval of the Variation of Optical Characteristics of Asian Dust Plume according to their Vertical Distributions using Multi-wavelength Raman LIDAR System

Korean Journal of Remote Sensing ◽

10.7780/kjrs.2014.30.5.5 ◽

2014 ◽

Vol 30 (5) ◽

pp. 597-605 ◽

Cited By ~ 4

Author(s):

Sung-Kyun Shin ◽

Young-San Park ◽

Byoung-Choel Choi ◽

Kwonho Lee ◽

Dongho Shin ◽

...

Keyword(s):

Asian Dust ◽

Optical Characteristics ◽

Raman Lidar ◽

Lidar System ◽

Vertical Distributions ◽

Multi Wavelength

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Multi-wavelength Raman lidar, sun photometric and aircraft measurements in combination with inversion models for the estimation of the aerosol optical and physico-chemical properties over Athens, Greece

Atmospheric Measurement Techniques ◽

10.5194/amt-5-1793-2012 ◽

2012 ◽

Vol 5 (7) ◽

pp. 1793-1808 ◽

Cited By ~ 27

Author(s):

R. E. Mamouri ◽

A. Papayannis ◽

V. Amiridis ◽

D. Müller ◽

P. Kokkalis ◽

...

Keyword(s):

Water Vapor ◽

Chemical Properties ◽

Urban Site ◽

Aircraft Measurements ◽

Raman Lidar ◽

Lidar System ◽

Aerosol Composition ◽

Microphysical Properties ◽

Multi Wavelength

Abstract. A novel procedure has been developed to retrieve, simultaneously, the optical, microphysical and chemical properties of tropospheric aerosols with a multi-wavelength Raman lidar system in the troposphere over an urban site (Athens, Greece: 37.9° N, 23.6° E, 200 m a.s.l.) using data obtained during the European Space Agency (ESA) THERMOPOLIS project, which took place between 15–31 July 2009 over the Greater Athens Area (GAA). We selected to apply our procedure for a case study of intense aerosol layers that occurred on 20–21 July 2009. The National Technical University of Athens (NTUA) EOLE 6-wavelength Raman lidar system has been used to provide the vertical profiles of the optical properties of aerosols (extinction and backscatter coefficients, lidar ratio) and the water vapor mixing ratio. An inversion algorithm was used to derive the mean aerosol microphysical properties (mean effective radius (reff), single-scattering albedo ω) and mean complex refractive index (m)) at selected heights in the 2–3 km height region. We found that reff was 0.14–0.4 (±0.14) μm, ω was 0.63–0.88 (±0.08) (at 532 nm) and m ranged from 1.44 (±0.10) + 0.01 (±0.01)i to 1.55 (±0.12) + 0.06 (±0.02)i, in good agreement (only for the reff values) with in situ aircraft measurements. The water vapor and temperature profiles were incorporated into the ISORROPIA II model to propose a possible in situ aerosol composition consistent with the retrieved m and ω values. The retrieved aerosol chemical composition in the 2–3 km height region gave a variable range of sulfate (0–60%) and organic carbon (OC) content (0–50%), although the OC content increased (up to 50%) and the sulfate content dropped (up to 30%) around 3 km height; the retrieved low ω value (0.63), indicates the presence of absorbing biomass burning smoke mixed with urban haze. Finally, the retrieved aerosol microphysical properties were compared with column-integrated sun photometer CIMEL data.

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Climatology and classification of the optical and microphysical properties of aerosols using ground-based remote sensing techniques

10.12681/eadd/45104 ◽

2018 ◽

Author(s):

Νικόλαος Σιώμος

Keyword(s):

Remote Sensing ◽

Raman Lidar ◽

Microphysical Properties ◽

Remote Sensing Techniques

Στη διατριβή αυτή μελετήθηκε η κλιματολογία και η ταξινόμηση των οπτικών και μικροφυσικών ιδιοτήτων των αιωρούμενων σωματιδίων με τη χρήση μεθόδων επίγειας τηλεπισκόπησης. Οι τεχνικές αυτές περιλαμβάνουν κατά βάση μία διάταξη lidar και ένα φωτόμετρο. Αν και η ανάλυση στο μεγαλύτερό της μέρος αφορά μετρήσεις του εργαστηρίου Φυσικής της Ατμόσφαιρας στην Θεσσαλονίκη, εντούτοις, στο πλαίσιο της διατριβής αξιοποιήθηκαν επίσης μετρήσεις του Ευρωπαϊκού δικτύου των lidar, European Lidar Network (EARLINET). Η ανάλυση συνοψίζεται σε τέσσερις κύριες θεματολογίες. Αρχικά, γίνεται παρουσίαση των διεργασιών συντήρησης και βελτιστοποίησης ενός συστήματος depolarization Raman lidar. Στη συνέχεια, περιγράφονται εκτενώς η μεθοδολογία και τα αποτελέσματα της κλιματολογικής ανάλυσης των μετρήσεων της χρονοσειράς του lidar και του φωτόμετρου στην περιοχή της Θεσσαλονίκης. Επιπρόσθετα, γίνεται υπολογισμός κάποιων μικροφυσικών ιδιοτήτων των αεροζόλ με τη συνδυαστική χρήση των δύο οργάνων και τα αποτελέσματα χρησιμοποιούνται για την αξιολόγηση ενός μοντέλου ποιότητας αέρα στην περιοχή της Θεσσαλονίκης. Τέλος, κάποια από τα προϊόντα τα οποία προέκυψαν από την ανάλυση, μαζί με μετρήσεις της βάσης δεδομένων του EARLINET αξιοποιήθηκαν στην αξιολόγηση δορυφορικών παρατηρήσεων.

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Retrieval of Dust Microphysical Properties

EPJ Web of Conferences ◽

10.1051/epjconf/202023708019 ◽

2020 ◽

Vol 237 ◽

pp. 08019

Author(s):

Böckmann Christine ◽

Samaras Stefanos ◽

Haarig Moritz

Keyword(s):

Long Range ◽

Long Range Transport ◽

Raman Lidar ◽

Dust Event ◽

Lidar System ◽

Microphysical Properties ◽

Range Transport ◽

Multi Wavelength ◽

Lidar Ratio ◽

Analyze Data

An intense mineral dust event from the Saharan desert was observed over the Island of Barbados after a long-range transport over the Atlantic Ocean during SALTRACE Campaign in June 2014. We analyze data from a multi-wavelength Raman-lidar system of Leibniz Institute for Tropospheric Research (TROPOS) called BERTHA (Back- scatter Extinction lidar Ratio Temperature Humidity profiling Apparatus) to derive the aerosol microphysical properties of the inspected layer via regularization using the software SphInX (Spheroidal Inversion eXperiments). These parameters were found to be within credible ranges.

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