Constant extinction at lower altitudes #241
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Why should the extinction at lower altitudes be constant, as in this line: And why not use, in such a case, the overlap corrected extinction and backscatter? |
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Replies: 1 comment
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@ZPYin: Overlap correction is not perfect. Overlap function relies on the laser pointing and can be unstable even at a short period of time. If overlap function is wrong, it can bring large error and will be propagated to other modules. So (at the beginning of the code development) we don't want use the overlap corrected extinction for quantitative assessment. In order to compensate the aerosol attenuation at the low-level range bins, we take the extinction to be constant with the value at the first range bin with full overlap. |
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@ZPYin: Overlap correction is not perfect. Overlap function relies on the laser pointing and can be unstable even at a short period of time. If overlap function is wrong, it can bring large error and will be propagated to other modules. So (at the beginning of the code development) we don't want use the overlap corrected extinction for quantitative assessment. In order to compensate the aerosol attenuation at the low-level range bins, we take the extinction to be constant with the value at the first range bin with full overlap.