Sequoia LISST-PORTABLE XR, Руководство пользователя

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LISST-Portable|XR manual 5
Row 6, element 2 Time in HH:MM:SS format
Row 6, element 3 Optical Transmission [dimensionless]. The optical transmission is the fraction of emitted laser light
power that is passing undisturbed through the sample volume, and which therefore does not contribute
to the scattering of light off of the particles.
Row 6, element 4 Total Volume Concentration [µl/l]. The Volume Concentration is the total volume of sediment within the
size ranges covered by the instrument. It is computed by summing up the volume concentration in each
of the 44 size classes.
Row 6, element 5 Total Mass Concentration [mg/l]. The Mass Concentration is computed from the volume concentration
multiplied by the density specified by the user. (see section 3.2).
Row 6, element 6 Mean Size [µm]. This is the mean size of the particle size distribution. See the FAQ (chapter 11) for
information about how it is computed.
Row 6, element 7 Standard Deviation [µm]. This is the standard deviation of the particle size distribution. See the FAQ
(chapter 11) for information about how it is computed.
Row 6, element 8 D5 [µm] is the 5
th
percentile of the cumulative percentage undersize by volume of the sediment.
Row 6, element 9 D10 [µm] is the 10
th
percentile of the cumulative percentage undersize by volume of the sediment.
Row 6, element 10 D16 [µm] is the 16
th
percentile of the cumulative percentage undersize by volume of the sediment.
Row 6, element 11 D25 [µm] is the 25
th
percentile of the cumulative percentage undersize by volume of the sediment.
Row 6, element 12 D50 [µm] is the 50
th
percentile of the cumulative percentage undersize by volume of the sediment. It is
the median diameter of the sample.
Row 6, element 13 D60 [µm] is the 60
th
percentile of the cumulative percentage undersize by volume of the sediment.
Row 6, element 14 D75 [µm] is the 75
th
percentile of the cumulative percentage undersize by volume of the sediment.
Row 6, element 15 D84 [µm] is the 84
th
percentile of the cumulative percentage undersize by volume of the sediment.
Row 6, element 16 D90 [µm] is the 90
th
percentile of the cumulative percentage undersize by volume of the sediment.
Row 6, element 17 D95 [µm] is the 95
th
percentile of the cumulative percentage undersize by volume of the sediment.
Row 6, element 18 D60/D10 [dimensionless]
is Hazen’s Uniformity Coefficient. It is a measure of the range of particle sizes
present in a given sample.
Row 6, element 19 The Surface Area [cm
2
] is the total surface area of all particles in the size range covered by the
instrument.
Row 6, element 20 Silt Volume [µl/l]. The total volume concentration of particles < 64 µm.
Row 6, element 21 Silt Ratio [dimensionless]. It is the proportion (by volume) that particles < 64µm makes up of the total
volume (Row 6, element 4).
Row 6, elements 22-65 Volume concentration [µl/l] in each of the 44 size bins.
Row 6, element 66 Sample Name
Row 6, element 67 Operator Name
Row 6, element 68 SOP Name
Row 6, element 69 SOP Note
Row 6, element 70 Optical model (Fraunhofer or Mie)