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Special issue: MILAGRO/INTEX-B 2006
Special issue: Megacities: air quality and climate impacts from local to...
Research article 15 May 2013
Research article | 15 May 2013
Aerosol mixing state, hygroscopic growth and cloud activation efficiency during MIRAGE 2006
S. Lance et al.
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cloud seeding). The particles, usually released from an aircraft, are expected to enhance cloud droplet growth, but its practical feasibility is somewhat uncertain. To improve upon this, we simulate the seeding effects with a numerical model. The model reproduces the main features seen in field observations, with a strong sensitivity to the total mass of the injected particle material.
chemical regimeof PM sensitivity to ammonia and nitric acid availability.
sweet spotand is sensitive to fluctuations in cloud condensation nuclei concentration alone.
lightalkene (ethene, propene and butene) fluxes from a ponderosa pine forest using a novel relaxed eddy accumulation method, revealing much larger emissions than previously estimated and accounting for a significant fraction of OH reactivity. Emissions have a diurnal cycle related to sunlight and temperature, and the forest canopy appears to be the source.