Vaisala IRIS, Руководство пользователя

Страница: 198 / 394

The ">60" in the example means greater than 10 km (6.2 mi).
METAR reports have a maximum value of "greater than 10 km", so you there are many ">60"
on the displays.
Table 19 METAR Visibility Codes
Code Value Meaning
00 Less than 100 meters (328 ft)
01 ... 50 Code * 100 meters (100 to 5000 meters (328 to 16 404 ft))
51 ... 55 Unused
56 ... 80 (Code-50) * 1000 meters (3280 ft) (6 to 30 km (3.7 to 18.6 mi))
81 ... 88 (Code-74) * 5000 meters (16 404 ft) (25 to 70 km (15.5 to 43.5 mi))
89 >70 km (43.5 mi)
90 ... 99 Unused for land stations
#5 Temperature
Temperature (°C).
#6 Cloud Height
There can be up to 3 levels of clouds plotted in the format O/HH .
• The lowest level clouds are drawn below the station, in this case " 3/40 "
• The second level of clouds is drawn above the station, which is " 6/60 " in the example
• There can be a third level drawn above the second, not shown in this example.
The first number is the oktas of coverage, and the second number is a code value for the
height. These code values are similar to the visibility code values, except the units are feet,
as shown in the following table.
The example shows 3/8 coverage of clouds at 1219 m (4000 feet), and 6/ 8 coverage at
3048 m (10000 feet). SYNOP reports contain only 1 level of cloud height, so the others are
not seen.
Table 20 Cloud Height Codes for SWS
Code Value Meaning
00 Less than 100 feet
01 ... 50 Code * 100 feet (100 to 5000 feet)
51 ... 55 Unused
56 ... 75 (Code-50) * 1000 feet (6000 to 25000 feet)
76 ... 99 Unused
IRIS Product and Display User Guide M211319EN-H
196 RESTRICTED