PWS100 Present Weather Sensor - Campbell Scientific
PWS100 Present Weather Sensor - Campbell Scientific
PWS100 Present Weather Sensor - Campbell Scientific
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Section 7. Operation<br />
NOTE<br />
The <strong>PWS100</strong> only measures particles / visibility 90% of the time<br />
so precipitation intensity is scaled appropriately.<br />
7.4.1.15 Message Field 41 Precipitation Accumulation<br />
This field will output the precipitation accumulation (mm) calculated over the<br />
Message_Interval defined.<br />
NOTE<br />
The <strong>PWS100</strong> only measures particles / visibility 90% of the time<br />
so precipitation totals are scaled appropriately.<br />
7.4.1.16 Message Field 42 Drop Size Distribution<br />
This field will output the drop size distribution table which is output as 300<br />
values, starting with the 0 to 0.1 mm bin, in steps of 0.1 mm up to 30 mm. This<br />
is calculated over the Message_Interval defined.<br />
7.4.1.17 Message Field 43 Average Velocity (ms -1 ) and Average Size (mm)<br />
This field will output the average velocity and average size values ignoring any<br />
particle type classifications.<br />
7.4.1.18 Message Field 44 Type Distribution<br />
This field will output the type distribution which is a series of 11 values for<br />
each particle type which shows the number of each type of particle classified.<br />
The order of the output is: drizzle, freezing drizzle, rain, freezing rain, snow<br />
grains, snow flakes, ice pellets, hail, graupel, error, unknown.<br />
7.4.1.19 Message Field 45 Size / Velocity Type Map 1 (20 x 20)<br />
This field will output a size and velocity map with the following classes:<br />
Particle diameter class<br />
Class Diameter [mm] Class width [mm]<br />
*1 =>0.00 0.24<br />
2 =>0.24 0.12<br />
3 =>0.36 0.14<br />
4 =>0.50 0.25<br />
5 =>0.75 0.25<br />
6 =>1.00 0.25<br />
7 =>1.25 0.25<br />
8 =>1.50 0.25<br />
9 =>1.75 0.25<br />
10 =>2.00 0.50<br />
11 =>2.50 0.50<br />
12 =>3.00 0.50<br />
13 =>3.50 0.50<br />
14 =>4.00 0.50<br />
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