Dataset Edition

Présentation générale
Nom du jeu de donnéesAEROCLO-sA PEGASUS supermicron particle number size distribution
Créé le2019-04-03
Date de début (yyyy-mm-dd)2017-08-20Date de fin (yyyy-mm-dd)2017-09-13
Accès aux données Dataset as provided by the Principal Investigator


Description du jeu de données
RésuméAerosol particle number size distribution between 0.25 and 32 micrometers measured at the surface level by the PEGASUS mobile platform located at the SANUMARC research center in Henties Bay, Namibia.
Strategie d'observationThe aerosol particle number size distribution at diameters larger than 0.3 micrometers was measured by a GRIMM optical particle counter (model 1.129, GRIMM) operated in the PEGASUS mobile platform. Air was taken into the instrument from one of the two custom-built high volume wind-orientable inlet of the mobile platform. Data were acquired continuously at 6 seconds time resolution.
RéférencesFormenti, P., B. D’Anna, C. Flamant, M. Mallet, S.J. Piketh, K. Schepanski, F. Waquet, F. Auriol, G. Brogniez, F. Burnet, J. Chaboureau, A. Chauvigné, P. Chazette, C. Denjean, K. Desboeufs, J. Doussin, N. Elguindi, S. Feuerstein, M. Gaetani, C. Giorio, D. Klopper, M.D. Mallet, P. Nabat, A. Monod, F. Solmon, A. Namwoonde, C. Chikwililwa, R. Mushi, E.J. Welton, and B. Holben, 2019: The Aerosols, Radiation and Clouds in Southern Africa Field Campaign in Namibia: Overview, Illustrative Observations, and Way Forward. Bull. Amer. Meteor. Soc., 100, 1277–1298,
Description de l'instrument
Type d'instrumentIn Situ/Laboratory Instruments > Chemical Meters/Analyzers > PMS > Particle Measuring System
FabricantGRIMM Technologies Inc.
Observation frequency6 seconds
Horizontal coveragePoint measurement
Longitude (°)-22.1Latitude (°)14.5
Height above ground (m)2
Information géographique
Site 1
SiteHenties Bay
Type de plateformeIn Situ Land-based Platforms > GROUND STATIONS
Instrument environmentThe instrument was located inside the PEGASUS mobile platform. PEGASUS was installed at the Sam Nujoma Marine and Coastal Resources Research Centre (SANUMARC) of the University of Namibia in Henties Bay (22°S, 14°05’E), Namibia. Henties Bay is a small town in an arid environment with no vegetation, no industrial activity and very little traffic. The site on the University campus, is located on the coast approximately 20 m from the shore line. To the east are the Namibian Gravel Plains, at 3 km to the south of the campus is the town of Henties Bay, and to the north is the Omaruru Riverbed (river mouth approximately 100 m from SANUMARC). The population of Henties Bay ranges between 4 600 and 6 000 inhabitants, according to the Namibia 2011 population and housing census.
Paramètre mesuré
Nom du paramètreAerosol Particle Properties
Mot-clé du paramètreAtmosphere > Aerosols > Aerosol Particle Properties
Méthodologie d'acquisition et qualitéNumber size distribution were measured by the GRIMM OPC model 1.109 every 6 seconds. Time is expressed in UTC. Data have been averaged every 2 minutes and are presented as number of particles per size bin (dN, cm-3). The nominal acquisition diameters corresponding to the refractive index of dolomite dust (1.56 - 0i) have been corrected to mean refractive index of the aerosol observed during the field campaign(n=1.60-0.002). Following that, the measured particle concentrations per size bin were corrected for particle losses through the pipelines using the procedure presented in von Der Weiden et al. (2009), Atmos. Meas. Tech., 2, 479–494, 2009
Date de début (yyyy-mm-dd)Date de fin (yyyy-mm-dd)
Précision du capteur / Incertitude
Information sur l'utilisation des données
Conditions d'utilisation des donnéesThe Principal Investigator(s) of the AEROCLO-sA campaign is Paola Formenti. If you intend to use the following data please contact her by e-mail: Data were acquired with the support of Anaïs Feron (LISA) and of the Technical Department of the LISA. The LISA ( is a joint research unit of the CNRS, University Paris-Est Créteil and University of Paris).
Charte d'accès aux donnéesAEROCLO data policy
Base de donnéesAEROCLO-sA on BAOBAB
Format des fichiers de donnéesascii text