Page
4
(a)
TEMPERATURE AND
RELATIVE HUMIDITY:
Sensors should be located over an open
level turf area at least 30 feet in
diameter. The surface should be the
typical turfgrass of the area in interest.
Sensors should be located a distance
away of at least four (4) times the height
of any nearby obstruction and at least 90
feet from large paved areas. Sensors
should be protected from thermal
radiation, and adequately ventilated.
Situations to avoid include:
•
large industrial heat sources
•
rooftops
•
steep slopes
•
sheltered hollows
•
high vegetation
•
shaded areas
•
top of a hill
•
bottom of a swale
•
swamps
•
areas where snow drifts occur
•
low places holding standing
water
(b)
SOLAR RADIATION:
Pyranometers should be located to avoid
shadows on the sensor at any time.
Mounting it on the southern most
portion (northern hemisphere) of the
weather station will minimize the chance
of shading from other weather station
structures. Reflective surfaces and
sources of artificial radiation should be
avoided. The height at which the sensor
is mounted is not critical.
Summary of Contents for WS-PRO
Page 2: ......
Page 10: ...Page viii...
Page 16: ...Page 6 FIGURE 2 MAGNETIC DECLINATION FOR THE CONTIGUOUS UNITED STATE...
Page 21: ...Page 11 FIGURE 4 CONCRETE BASE DETAIL FIGURE 5 ANCHOR BOLT TEMPLATE DETAIL...
Page 24: ...Page 14 FIGURE 6 EXTERNAL WIRING DETAIL AT THE PRO SH WEATHER STATION...
Page 27: ...Page 17 FIGURE 7 EXTERNAL WIRING DETAIL AT THE PRO PH WEATHER STATION...
Page 33: ...Page 23 FIGURE 10 SOLAR PANEL INSTALLATION DETAIL...
Page 35: ...Page 25 FIGURE 11 CROSS ARM MOUNTING INSTALLATION OF 034A WIND SENSOR...
Page 48: ...Page 38 FIGURE 21 INSTALLATION AT CENTRAL COMPUTER FOR DIRECT CONNECTED WEATHER STATION...
Page 50: ...Page 40 FIGURE 22 INSTALLATION AT CENTRAL COMPUTER FOR TELEPHONE CONNECTED WEATHER STATION...
Page 73: ...Page 63 FIGURE 28 TYPICAL 3 ROD GROUNDING GRID DETAIL...
Page 75: ...Page 65 FIGURE 30 TESTING OF SOLAR RADIATION SENSOR...
Page 76: ...Page 66 FIGURE 31 TESTING OF RAIN GAGE...
Page 77: ...Page 67 FIGURE 32 TESTING OF TEMPERATURE RELATIVE HUMIDITY SENSOR...
Page 78: ...Page 68 FIGURE 33 TESTING OF AIR TEMPERATURE PROBE...