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Puerto Rico African Dust and Clouds Study (PRADACS)

Puerto Rico African Dust and Clouds Study (PRADACS). Olga L. Mayol-Bracero Institute for Tropical Ecosystem Studies University of Puerto Rico, Río Piedras Campus Planning Meeting for IFP 2011 4.February.2011. Plans for Summer / Fall 2011. AEROSOLS – UPR-RP. UPR-RP Aerosols:

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Puerto Rico African Dust and Clouds Study (PRADACS)

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  1. Puerto Rico African Dust and Clouds Study (PRADACS) Olga L. Mayol-Bracero Institute for Tropical Ecosystem Studies University of Puerto Rico, Río Piedras Campus Planning Meeting for IFP 2011 4.February.2011

  2. PlansforSummer/Fall 2011

  3. AEROSOLS – UPR-RP

  4. UPR-RP Aerosols: Hypothesis 2: LRTAD has unique chemical and physical properties which influence cloud properties and precipitation processes. Samplers: Aerosols – Stacked-filter units, low-pressure impactors (DLPI and MOUDI), Hi Vol Daily Aerosol Optical Thickness Satellite Images from NOAA / NESDIS Air Mass Backward Trajectories NOAA ARL HYSPLIT model (HYbrid Single-Particle Lagrangian Integrated Trajectory) NADP Data Online Measurements: CN counter, SMPS, aethalometer, nephelometer, CIMEL sunphotometer, PSAP, OPC Analyses: Gravimetric Thermal/optical analysis (TC, OC, EC) Total Organic Carbon and Total Nitrogen Analyzer (TOC, DOC, TN) Ion Chromatography (Na+, NH4+, Ca2+, K+, Mg2+, Cl-, NO3- SO42-, acetate, formate, oxalate, and MSA) ICP (P, K, Mn, Fe, Ca, Mg, Na, Al) H-NMR

  5. LISA Univ of Paris 12 - The FENNEC Project – Paola Formenti – JUNE 2011 Joint French-British initiative, funded by French CNRS, ANR and British NERC. In collaboration with the Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA, Universite Paris 7 & 12). The project will include aircraft observations by the UK FAAM BAe-146 and the FR F20 based in Morocco, and ground based observations in Mauritania, to determine the aerosol composition, size distribution, morphology and optical properties. Simultaneous aerosol measurements at PR and Mauritania (Africa, close to the AD source) to probe the chemical and physical properties of LRTAD and of freshly emitted AD.

  6. PRADACS and FENNEC at CSJ – P. Vallejo With FENNEC: How does the chemical and physical properties of African dust change during the long range transport across the Atlantic Ocean? Summer 2011 (May-June: peak of AD events) • Large part of the measurements will be performed simultaneously at PR and at Mauritania at a station close to the AD source to simultaneously probe the chemical and physical properties of LRTAD and of AD • Same and simultaneous measurements : • Inlet: isokinetic particle collector (IPC) • Filter-based: SFU, DLPI • Real-Time: Aethalometer, Nephelometer, Sunphotometer, OPC • Same Analyses: • Gravimetric, IC, ICP, XRF, XRD, TEM/SEM • Will contribute to the chemical and physical properties of LRTAD before mixing with local aerosols: control site. Very important for PRADACS H2. • Fall 2011 (November: absence of AD)

  7. CLOUDS AND RAINWATERUPR-RP

  8. Online Measurements: LWC, Belfort visibility sensor, webcam system Analyses: Thermal/optical analysis (TC, OC, EC) Total Organic Carbon and Total Nitrogen Analyzer (TOC, DOC, TN) Ion Chromatography (Na+, NH4+, Ca2+, K+, Mg2+, Cl-, NO3- SO42-, acetate, formate, oxalate, and MSA) ICP (P, K, Mn, Fe, Ca, Mg, Na, Al) H-NMR pH, cloud and rain water volumes Samplers: Cloud water - Caltech Active Strand Cloud Water Collector (CASCC) and size fractionating CASCC Rainwater - Bottle and funnel NADP Data UPR-RP Clouds and Rainwater

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