Station Model Used On Weather Maps
See also: Station modelWhen analyzing a weather map, a station model is plotted at each point of observation. Within the station model, the temperature, dewpoint, wind, sea level pressure, pressure tendency, and ongoing weather are plotted. The circle in the middle represents cloud cover. If completely filled in, it is overcast. If conditions are completely clear, the circle is empty. If conditions are partly cloudy, the circle is partially filled in. Outside the United States, temperature and dewpoint are plotted in degrees Celsius. Each full flag on the Wind Barb represents 10 knots (19 km/h) of wind, each half flag represents 5 knots (9 km/h). When winds reach 50 knots (93 km/h), a filled in triangle is used for each 50 knots (93 km/h) of wind. In the United States, rainfall plotted in the corner of the station model are in English units, inches. The international standard rainfall measurement unit is the millimeter. Once a map has a field of station models plotted, the analyzing isobars (lines of equal pressure), isallobars (lines of equal pressure change), isotherms (lines of equal temperature), and isotachs (lines of equal wind speed) can be easily accomplished. The abstract present weather symbols used on surface weather analyses for obstructions to visibility, precipitation, and thunderstorms were devised to take up the least room possible on weather maps.
Read more about this topic: Surface Weather Analysis
Famous quotes containing the words station, model, weather and/or maps:
“...I believe it is now the duty of the slaves of the South to rebuke their masters for their robbery, oppression and crime.... No station or character can destroy individual responsibility, in the matter of reproving sin.”
—Angelina Grimké (18051879)
“There are very many characteristics which go into making a model civil servant. Prominent among them are probity, industry, good sense, good habits, good temper, patience, order, courtesy, tact, self-reliance, many deference to superior officers, and many consideration for inferiors.”
—Chester A. Arthur (18291886)
“Is it possible
That any may find
Within one heart so diverse mind,
To change or turn as weather and wind?
Is it possible?”
—Sir Thomas Wyatt (1503?1542)
“And at least you know
That maps are of time, not place, so far as the army
Happens to be concernedthe reason being,
Is one which need not delay us.”
—Henry Reed (19141986)