scholarly journals WITHDRAWN: Correction to “Multi-instrumental observation of an exceptionally strong Saharan dust outbreak over Portugal”

2012 ◽  
Vol 117 (D24) ◽  
pp. n/a-n/a
Author(s):  
J. Preißler ◽  
F. Wagner ◽  
S. N. Pereira ◽  
J. L. Guerrero-Rascado
Keyword(s):  
Saharan Dust ◽  
Instrumental Observation

scholarly journals Multi-instrumental observation of an exceptionally strong Saharan dust outbreak over Portugal

2011 ◽  
Vol 116 (D24) ◽  
pp. n/a-n/a ◽  
Author(s):  
J. Preißler ◽  
F. Wagner ◽  
S. N. Pereira ◽  
J. L. Guerrero-Rascado
Keyword(s):  
Saharan Dust ◽  
Instrumental Observation

scholarly journals Correction to “Multi-instrumental observation of an exceptionally strong Saharan dust outbreak over Portugal”

2012 ◽  
Vol 117 (D3) ◽  
pp. n/a-n/a
Author(s):  
J. Preißler ◽  
F. Wagner ◽  
S. N. Pereira ◽  
J. L. Guerrero-Rascado
Keyword(s):  
Saharan Dust ◽  
Instrumental Observation

Regional modelling of Saharan dust and biomass-burning smoke Part I: Model description and evaluation

Tellus B ◽  
2011 ◽  
Vol 63 (4) ◽  
Author(s):  
Bernd Heinold ◽  
Ina Tegen ◽  
Kerstin Schepanski ◽  
Matthias Tesche ◽  
Michael Esselborn ◽  
...  
Keyword(s):  
Biomass Burning ◽  
Saharan Dust ◽  
Model Description ◽  
Regional Modelling

Solar radiative effects of a Saharan dust plume observed during SAMUM assuming spheroidal model particles

Tellus B ◽  
2009 ◽  
Vol 61 (1) ◽  
Author(s):  
Sebastian Otto ◽  
Eike Bierwirth ◽  
Bernadett Weinzierl ◽  
Konrad Kandler ◽  
Michael Esselborn ◽  
...  
Keyword(s):  
Saharan Dust ◽  
Radiative Effects ◽  
Spheroidal Model

Numerical simulations of optical properties of Saharan dust aerosols with emphasis on lidar applications

Tellus B ◽  
2009 ◽  
Vol 61 (1) ◽  
Author(s):  
M. Wiegner ◽  
J. Gasteiger ◽  
K. Kandler ◽  
B. Weinzierl ◽  
K. Rasp ◽  
...  
Keyword(s):  
Optical Properties ◽  
Numerical Simulations ◽  
Saharan Dust ◽  
Dust Aerosols

Airborne measurements of dust layer properties, particle size distribution and mixing state of Saharan dust during SAMUM 2006

Tellus B ◽  
2009 ◽  
Vol 61 (1) ◽  
Author(s):  
Bernadett Weinzierl ◽  
Andreas Petzold ◽  
Michael Esselborn ◽  
Martin Wirth ◽  
Katharina Rasp ◽  
...  
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Saharan Dust ◽  
Mixing State ◽  
Dust Layer ◽  
Airborne Measurements

Investigation of Saharan dust influence on PM10 concentration using two methods in Gabès, Tunisia

2021 ◽  
Vol 14 (10) ◽  
Author(s):  
Houda Chtioui ◽  
Karim Bouchlaghem ◽  
Mohamed Hichem Gazzah
Keyword(s):  
Pm10 Concentration ◽  
Saharan Dust

scholarly journals The Potential of GRASP/GARRLiC Retrievals for Dust Aerosol Model Evaluation: Case Study during the PreTECT Campaign

2021 ◽  
Vol 13 (5) ◽  
pp. 873
Author(s):  
Dimitra Konsta ◽  
Alexandra Tsekeri ◽  
Stavros Solomos ◽  
Nikolaos Siomos ◽  
Anna Gialitaki ◽  
...  
Keyword(s):  
Model Evaluation ◽  
Dust Concentration ◽  
Saharan Dust ◽  
North Coast ◽  
Concentration Profiles ◽  
Future Studies ◽  
Aerosol Model ◽  
The North ◽  
Sun Photometer

We use the Generalized Retrieval of Aerosol Surface Properties algorithm (GRASP) to compare with dust concentration profiles derived from the NMME-DREAM model for a specific dust episode. The GRASP algorithm provides the possibility of deriving columnar and vertically-resolved aerosol properties from a combination of lidar and sun-photometer observations. Herein, we apply GRASP for analysis of a Saharan dust outburst observed during the “PREparatory: does dust TriboElectrification affect our ClimaTe” campaign (PreTECT) that took place at the North coast of Crete, at the Finokalia ACTRIS station. GRASP provides column-averaged and vertically resolved microphysical and optical properties of the particles. The retrieved dust concentration profiles are compared with modeled concentration profiles derived from the NMME-DREAM dust model. To strengthen the results, we use dust concentration profiles from the POlarization-LIdar PHOtometer Networking method (POLIPHON). A strong underestimation of the maximum dust concentration is observed from the NMME-DREAM model. The reported differences between the retrievals and the model indicate a high potential of the GRASP algorithm for future studies of dust model evaluation.

scholarly journals Radiative Effect and Mixing Processes of a Long-Lasting Dust Event over Athens, Greece, during the COVID-19 Period

Atmosphere ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 318
Author(s):  
Panagiotis Kokkalis ◽  
Ourania Soupiona ◽  
Christina-Anna Papanikolaou ◽  
Romanos Foskinis ◽  
Maria Mylonaki ◽  
...  
Keyword(s):  
Atmospheric Pollutants ◽  
Saharan Dust ◽  
Radiative Effect ◽  
Atmospheric Conditions ◽  
Dust Event ◽  
Mixing Processes ◽  
Hysplit Model ◽  
European Continent ◽  
Dust Layer ◽  
Ground Based Lidar

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 observations and model simulations over Athens, Greece. The dust measurements (11–20 May 2020), performed during the confinement period due to the COVID-19 pandemic, revealed interesting features of the aerosol dust properties in the absence of important air pollution sources over the European continent. During the event, moderate aerosol optical depth (AOD) values (0.3–0.4) were observed inside the dust layer by the ground-based lidar measurements (at 532 nm). Vertical profiles of the lidar ratio and the particle linear depolarization ratio (at 355 nm) showed mean layer values of the order of 47 ± 9 sr and 28 ± 5%, respectively, revealing the coarse non-spherical mode of the probed plume. The values reported here are very close to pure dust measurements performed during dedicated campaigns in the African continent. By utilizing Libradtran simulations for two scenarios (one for typical midlatitude atmospheric conditions and one having reduced atmospheric pollutants due to COVID-19 restrictions, both affected by a free tropospheric dust layer), we revealed negligible differences in terms of radiative effect, of the order of +2.6% (SWBOA, cooling behavior) and +1.9% (LWBOA, heating behavior). Moreover, the net heating rate (HR) at the bottom of the atmosphere (BOA) was equal to +0.156 K/d and equal to +2.543 K/d within 1–6 km due to the presence of the dust layer at that height. On the contrary, the reduction in atmospheric pollutants could lead to a negative HR (−0.036 K/d) at the bottom of the atmosphere (BOA) if dust aerosols were absent, while typical atmospheric conditions are estimated to have an almost zero net HR value (+0.006 K/d). The NMMB-BSC forecast model provided the dust mass concentration over Athens, while the air mass advection from the African to the European continent was simulated by the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model.

Sign in / Sign up

Export Citation Format

Share Document