Interactive comment on “LOAC: a small aerosol optical counter/sizer for ground-based and balloon measurements of the size distribution and nature of atmospheric particles – Part 1: Principle of measurements and instrument evaluation” by J.-B. Renard et al
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چکیده
Page 9998 line 20: Indeed, we will change “typology” to “topology”. The scattering properties of particles depend on the size, on their shape and on the real and imaginary parts of their refractive index. Many laboratory studies (e.g. the Amsterdam and Granada light scattering databases, the PROGRA2 database) have shown that the imaginary part of the index, and thus the transparency of particles, strongly affect the light scattered by levitating particles.
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Interactive comment on “LOAC: a small aerosol optical counter/sizer for ground-based and balloon measurements of the size distribution and nature of atmospheric particles – Part 2: First results from balloon and unmanned aerial vehicle flights” by J.-B. Renard et al
It is no true that we have copied/pasted parts of the paper 1. A careful reading of the two texts show that no more than few tens of lines are partly in common, and they concern only the description of the instrument and some conditions of measurements. Also, it is not true that they are repetitions that occupy about 1/3 of the paper. All the photographs are necessary to show the LOAC gondolas....
متن کاملReferee report LOAC: a small aerosol optical counter/sizer for ground- based and balloon measurements of the size distribution and nature of atmospheric particles: 1. Principle of measurements and instrument evaluation
L. 4-5 p.9995: To be precise, in [Deshler et al., 2003, cited in the paper], the authors mention the value of 150 nm as smallest particle size measured by optical particle counters (OPC) at Laramie. However, these authors also measure condensation nuclei (radius ≤ 0.01 μm) by growing particle with sizes down to 0.01 μm in the sample stream. L. 5-6 p.9995: “sensitive to nature of the particl...
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The small size and mass of the LOAC instrument, as well as its wide detection range for the particle size distribution and potential to distinguish particle nature makes it a highly attractive instrument for volcanology applications. Measurements of the volcanic aerosol emission are challenging due to the difficult-to-access terrain, and can be hazardous during eruptions. The lightweight LOAC o...
متن کاملInteractive comment on “Chemical analysis of refractory stratospheric aerosol particles collected within the arctic vortex and inside polar stratospheric clouds” by Martin Ebert et al
This is a very interesting paper that presents nice results on the detection of solid particles in the stratosphere. We have two short comments: 1) Page 15 line 19 (part 4.1;7 Soot): the author proposed possible sources for soot particles in the stratosphere. The (transient) presence of soot in the middle stratosphere and their possible origins, including meteoritic material, were also obtained...
متن کاملReply to referee 1 for the first part of the LOAC paper (AMT-2015-212)
L. 4-5 p.9995: To be precise, in [Deshler et al., 2003, cited in the paper], the authors mention the value of 150 nm as smallest particle size measured by optical particle counters (OPC) at Laramie. However, these authors also measure condensation nuclei (radius ≤ 0.01 μm) by growing particle with sizes down to 0.01 μm in the sample stream. We understand the reviewer’s comment. But, strictly sp...
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