Search Results - "PAPAYANNIS, Alexandros"

Application and Testing of the Extended-Kalman-Filtering Technique for Determining the Planetary Boundary-Layer Height over Athens, Greece by Kokkalis, Panagiotis, Alexiou, Dimitrios, Papayannis, Alexandros, Rocadenbosch, Francesc, Soupiona, Ourania, Raptis, Panagiotis-Ioannis, Mylonaki, Maria, Tzanis, Chris G., Christodoulakis, John

“…We investigate the temporal evolution of the planetary boundary-layer (PBL) height over the basin of Athens, Greece, during a 6-year period (2011–2016), using…”
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Biomass-burning impact on CCN number, hygroscopicity and cloud formation during summertime in the eastern Mediterranean by Bougiatioti, Aikaterini, Bezantakos, Spiros, Stavroulas, Iasonas, Kalivitis, Nikos, Kokkalis, Panagiotis, Biskos, George, Mihalopoulos, Nikolaos, Papayannis, Alexandros, Nenes, Athanasios

“…This study investigates the concentration, cloud condensation nuclei (CCN) activity and hygroscopic properties of particles influenced by biomass burning in…”
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Canadian Biomass Burning Aerosol Properties Modification during a Long-Ranged Event on August 2018 by Papanikolaou, Christina-Anna, Giannakaki, Elina, Papayannis, Alexandros, Mylonaki, Maria, Soupiona, Ourania

“…The aim of this paper is to study the spatio-temporal evolution of a long-lasting Canadian biomass burning event that affected Europe in August 2018. The event…”
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The Influence of the Planetary Boundary Layer on the Atmospheric State at an Orographic Site at the Eastern Mediterranean by Romanos Foskinis, Kunfeng Gao, Maria I. Gini, Evangelia Diapouli, Stergios Vratolis, Konstantinos Granakis, Olga Zografou, Panagiotis Kokkalis, Mika Komppula, Ville Vakkari, Konstantinos Eleftheriadis, Athanasios Nenes, Alexandros Papayannis

“…We studied the influence of the Planetary Boundary Layer (PBL) on the air masses sampled at the mountaintop Hellenic Atmospheric Aerosol and Climate Change…”
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Set of Algorithms and Techniques for Accurate 3D, Single Beam – Single Pointing, Lidar Measurements for Slant Range Visibility, Planetary Boundary Layer Height and Wind Speed Retrieval, Atmospheric Layers Spatial Distribution and Categorization in Real Time by Pantazis, Alexandros, Papayannis, Alexandros

“…In this work, a full set of recently developed algorithms and techniques is presented, for a single beam-single pointing lidar to be able to perform…”
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Optical and Microphysical Properties of Aged Biomass Burning Aerosols and Mixtures, Based on 9-Year Multiwavelength Raman Lidar Observations in Athens, Greece by Mylonaki, Maria, Papayannis, Alexandros, Anagnou, Dimitra, Veselovskii, Igor, Papanikolaou, Christina-Anna, Kokkalis, Panagiotis, Soupiona, Ourania, Foskinis, Romanos, Gidarakou, Marilena, Kralli, Eleni

“…Mean optical and microphysical aerosol properties of long-range transported biomass burning (BB) particles and mixtures are presented from a 9-year (2011–2019)…”
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EARLINET correlative measurements for CALIPSO: First intercomparison results by Pappalardo, Gelsomina, Wandinger, Ulla, Mona, Lucia, Hiebsch, Anja, Mattis, Ina, Amodeo, Aldo, Ansmann, Albert, Seifert, Patric, Linné, Holger, Apituley, Arnoud, Alados Arboledas, Lucas, Balis, Dimitris, Chaikovsky, Anatoli, D'Amico, Giuseppe, De Tomasi, Ferdinando, Freudenthaler, Volker, Giannakaki, Elina, Giunta, Aldo, Grigorov, Ivan, Iarlori, Marco, Madonna, Fabio, Mamouri, Rodanthi-Elizabeth, Nasti, Libera, Papayannis, Alexandros, Pietruczuk, Aleksander, Pujadas, Manuel, Rizi, Vincenzo, Rocadenbosch, Francesc, Russo, Felicita, Schnell, Franziska, Spinelli, Nicola, Wang, Xuan, Wiegner, Matthias

“…A strategy for European Aerosol Research Lidar Network (EARLINET) correlative measurements for Cloud‐Aerosol Lidar and Infrared Pathfinder Satellite…”
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Long-Term Ground-Based Measurements of Aerosol Optical Depth over Kuwait City by Kokkalis, Panagiotis, K. Al Jassar, Hala, Solomos, Stavros, Raptis, Panagiotis-Ioannis, Al Hendi, Hamad, Amiridis, Vassilis, Papayannis, Alexandros, Al Sarraf, Hussain, Al Dimashki, Marwan

“…We analyze ten years (2008–2017) of ground-based observations of the Aerosol Optical Depth (AOD) in the atmosphere of Kuwait City, in Middle East. The…”
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Optical and Microphysical Properties of the Aerosols during a Rare Event of Biomass-Burning Mixed with Polluted Dust by Gidarakou, Marilena, Papayannis, Alexandros, Kokkalis, Panagiotis, Evangeliou, Nikolaos, Vratolis, Stergios, Remoundaki, Emmanouella, Groot Zwaaftink, Christine, Eckhardt, Sabine, Veselovskii, Igor, Mylonaki, Maria, Argyrouli, Athina, Eleftheriadis, Konstantinos, Solomos, Stavros, Gini, Maria I.

“…A rare event of mixed biomass-burning and polluted dust aerosols was observed over Athens, Greece (37.9° N, 23.6° E), during 21–26 May 2014. This event was…”
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Radiative Effect and Mixing Processes of a Long-Lasting Dust Event over Athens, Greece, during the COVID-19 Period by Kokkalis, Panagiotis, Soupiona, Ourania, Papanikolaou, Christina-Anna, Foskinis, Romanos, Mylonaki, Maria, Solomos, Stavros, Vratolis, Stergios, Vasilatou, Vasiliki, Kralli, Eleni, Anagnou, Dimitra, Papayannis, Alexandros

“…We report on a long-lasting (10 days) Saharan dust event affecting large sections of South-Eastern Europe by using a synergy of lidar, satellite, in-situ…”
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Corrigendum: Towards reliable retrievals of cloud droplet number for non-precipitating planetary boundary layer clouds and their susceptibility to aerosol by Foskinis, Romanos, Nenes, Athanasios, Papayannis, Alexandros, Georgakaki, Paraskevi, Eleftheriadis, Konstantinos, Vratolis, Stergios, Gini, Maria I., Komppula, Mika, Vakkari, Ville, Kokkalis, Panos

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Vertical Profiling of Fresh Biomass Burning Aerosol Optical Properties over the Greek Urban City of Ioannina, during the PANACEA Winter Campaign by Papanikolaou, Christina-Anna, Papayannis, Alexandros, Mylonaki, Maria, Foskinis, Romanos, Kokkalis, Panagiotis, Liakakou, Eleni, Stavroulas, Iasonas, Soupiona, Ourania, Hatzianastassiou, Nikolaos, Gavrouzou, Maria, Kralli, Eleni, Anagnou, Dimitra

“…Vertical profiling of aerosol particles was performed during the PANhellenic infrastructure for Atmospheric Composition and climatE chAnge (PANACEA) winter…”
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Aerosol Typing Based on Multiwavelength Lidar Observations and Meteorological Model Data by Mylonaki, Maria, Giannakaki, Elina, Papayannis, Alexandros, Floca, Elena, Komppula, Mika

“…Three different aerosol classification methods have been used to characterize lidar observations: Mahalanobis distance automatic aerosol type classification,…”
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Australian Bushfires (2019–2020): Aerosol Optical Properties and Radiative Forcing by Papanikolaou, Christina-Anna, Kokkalis, Panagiotis, Soupiona, Ourania, Solomos, Stavros, Papayannis, Alexandros, Mylonaki, Maria, Anagnou, Dimitra, Foskinis, Romanos, Gidarakou, Marilena

“…In the present study, we present the aerosol optical properties and radiative forcing (RF) of the tropospheric and stratospheric smoke layers, observed by the…”
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Unraveling ice multiplication in winter orographic clouds via in-situ observations, remote sensing and modeling by Georgakaki, Paraskevi, Billault-Roux, Anne-Claire, Foskinis, Romanos, Gao, Kunfeng, Sotiropoulou, Georgia, Gini, Maria, Takahama, Satoshi, Eleftheriadis, Konstantinos, Papayannis, Alexandros, Berne, Alexis, Nenes, Athanasios

“…Recent years have shown that secondary ice production (SIP) is ubiquitous, affecting all clouds from polar to tropical regions. SIP is not described well in…”
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Lower-free tropospheric ozone dial measurements over Athens, Greece by Mytilinaios, Michail, Papayannis, Alexandros, Tsaknakis, Georgios

“…A compact ozone differential absorption lidar (DIAL) was implemented at the Laboratory of Laser Remote Sensing of the National Technical University of Athens…”
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Towards reliable retrievals of cloud droplet number for non-precipitating planetary boundary layer clouds and their susceptibility to aerosol by Foskinis, Romanos, Nenes, Athanasios, Papayannis, Alexandros, Georgakaki, Paraskevi, Eleftheriadis, Konstantinos, Vratolis, Stergios, Gini, Maria I., Komppula, Mika, Vakkari, Ville, Kokkalis, Panos

“…Remote sensing has been a key resource for developing extensive and detailed datasets for studying and constraining aerosol-cloud-climate interactions…”
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Novel lidar algorithms for atmospheric slantrange visibility, planetary boundary layer height, meteorogical phenomena and atmospheric layering measurements by Pantazis, Alexandros, Papayannis, Alexandros, Georgoussis, Georgios

“…In this paper we present a development of novel algorithms and techniques implemented within the Laser Remote Sensing Laboratory (LRSL) of the National…”
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CCN Activity, Variability and Influence on Droplet Formation during the HygrA-Cd Campaign in Athens by Bougiatioti, Aikaterini, Argyrouli, Athina, Solomos, Stavros, Vratolis, Stergios, Eleftheriadis, Konstantinos, Papayannis, Alexandros, Nenes, Athanasios

“…Measurements of cloud condensation nuclei (CCN) concentrations (cm−3) at five levels of supersaturation between 0.2–1%, together with remote sensing profiling…”
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Design and Development of a Raman Lidar for Cherenkov Gamma Array Experiments by Vasileiadis, George, Brun, Patrick, Gabella, Omar, Rivoire, Stephane, Avdikos, George, Louridas, Alexandros, Georgoussis, George, Papayannis, Alexandros

“…Future Cherenkov Gamma Ray (CGR) experiments will reach a sensitivity and energy resolution never obtained until now by any other high energy gamma–ray…”
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