Advice 1: How to draw a compass rose

Rose of the winds is a vector diagram, which characterizes the wind regime in a particular area, the result of long-term observations. It looks like a polygon, the lengths of the rays which diverge in different directions and which are proportional to the frequency of winds from these directions. It is often used by builders in the planning of communities, runways of airfields, the solution of many agronomic and environmental problems.
Wind rose is a way to visually see where the wind blows
You will need
  • Calendar weather, a pencil, a ruler, a notebook in a cage
Instruction
1
The first written mention of the rose of the winds belong to the XII century Is a vector diagram describing the wind regime in a given place for long-term observations. The real rose of the winds, built on the basis of the number of observations may have significant differences of the lengths of different rays. It was widely used by builders, sailors of long ago. Today, almost every student draws a rose on a lesson of geography for educational purposes, but often it is used when building a house, parachute jumps or other practical problems.
2
Draw in notebooks intersecting lines showing main and intermediate sides of the horizon. Sign the names of the parties to the horizon. For this purpose, both Russian and international oboznacheniya: North (Nord) - S/N, North-East (Nord-OST) NE/NE, the East (OST) - B/E, South-East (Zuid-Oost) - SE/SE, South (Zuid) - u/S, South-West (South-West), SW/SW, the West (West) - S/W, North-West (Nord-vest) - NW/NW. Schedule should be similar to a coordinate system with additional diagonals for intermediate directions of the eight rays.
3
According to the results of observations on these lines from the center of the chart put in the scale
(1 cell (0.5 cm) — 1 day) number of days during which the prevailing wind of a particular direction. For example, a month the North wind direction blew 3 times, that is, from the center of the graph by a line pointing to the North, you need to set aside 3 boxes and call it a day. Repeat this action for all directions. Mark these dots of bright color.
4
The resulting points of the winds in the neighboring areas connect line. It is better to use colored pasta. In the middle of the graph and label the number of windless days. The rose of the winds you will be able to determine the prevailing winds in your city or region.
Note
To obtain reliable data required long-term monitoring of winds.
Useful advice
Also the wind rose in heraldry is called a symbol in the form of a stylized star. He used the emblems of various organizations: NATO (four beam), CIA (16 rays), the Ministry of emergency situations and the Ministry of transport of the Russian Federation (8 rays), as well as on the arms of the city etc.

Advice 2: How to draw a wind rose

Rose of the winds is a circular vector diagram that shows the frequency of occurrence of wind in different directions for a certain period of time. Built rose of the winds are usually on the average long-term data for year, season, month.
How to draw a wind rose
You will need
  • - a sheet of paper;
  • pencil or pen;
  • - calendar weather.
Instruction
1
In order to draw the rose of the winds, you will need the data of daily wind direction for some time. For example, you can observe the weather for one month, recording daily information about wind direction in the weather Calendar".
2
Draw on a sheet of paper intersecting lines (according to the principle coordinate system), which will specify the principal directions, otherwise they are called Rumba horizon (North–South, West–East). Then swipe through the center of the two lines (North-West, South-West, North-East, South-East). All you should have eight directions (compass points). Sign their names on your drawing (S; u; W; V; s-Z; s-V; SW; se ).
3
Using data from "Calendar, weather", in each direction from the center in the direction where the wind blows, check the scale of the number of days during which the prevailing wind is a certain direction. You can choose any convenient scale, e.g. 1 day to take 0.5 cm If, for example, wind South-West blew in a month 5 days it is required from the centre of the graph by a line, which is oriented to the South-West, to defer 2.5 cm and make a mark.
4
In the same way mark winds on each of the eight directions.
5
Of the mark consistently connect straight lines. In the center of a rose of winds near or specify the number of days with calm weather.
6
Ray rose of the winds you can make a conclusion about the prevailing winds in your area during the month.
Note
Wind direction is the direction (point) of the horizon, where the wind blows. Accordingly, the South wind always blows to the North, West to East, South-West to North-East, etc. In meteorology, wind direction is determined by 8 or 16 rhumbs.
Useful advice
The first written mention of the rose of the winds belong to the TWELFTH century.

Graphs of the wind rose in mandatory are made when designing construction projects to account for the effects of the prevailing winds in a particular region in the construction of housing, objects socially-cultural appointment and industry.
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