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- Title
An automatic collector to monitor insoluble atmospheric deposition: an application for mineral dust deposition.
- Authors
Laurent, B.; Losno, R.; Chevaillier, S.; Vincent, J.; Roullet, P.; Bon Nguyen, E.; Ouboulmane, N.; Triquet, S.; Fornier, M.; Raimbault, P.; Bergametti, G.
- Abstract
Deposition is one of the key processes controlling the mass budget of the atmospheric mineral dust concentration. However, dust deposition remains poorly constrained in transport models simulating the atmospheric dust cycle. This is mainly due to the limited number of relevant deposition measurements. This paper aims at presenting an automatic collector (CARAGA), specially developed to sample the total (dry and wet) atmospheric deposition of insoluble dust in remote areas. The autonomy of the CARAGA can range from 25 days to almost 1 year depending on the programed sampling time step (1 day and 2 weeks sampling time steps, respectively). This collector is used to sample atmospheric deposition on Frioul Island which is located in the Gulf of Lions in the Western Mediterranean Basin over which Saharan dust can be transported and deposited. To quantify the mineral dust mass in deposition samples, a weighing and ignition protocol is applied. Two years of continuous deposition measurements performed on a weekly time step sampling on Frioul Island are presented and discussed with in-situ measurements, air mass trajectories and satellite observations of dust.
- Subjects
MASS budget (Geophysics); ATMOSPHERIC deposition; MINERAL dusts; AIR masses; TRAJECTORIES (Mechanics)
- Publication
Atmospheric Measurement Techniques Discussions, 2015, Vol 8, Issue 3, p2299
- ISSN
1867-8610
- Publication type
Article
- DOI
10.5194/amtd-8-2299-2015