![]() ![]() If the color representing 30 to 35 miles (48 to 56 km) per hour moves from about halfway between the 2 circles (indicating 25 hours) to the 30 circle, then the wind spent 5 hours of time at this speed from that particular direction, as you subtract 25 from 30 hours.On the left we have the PCE-007 wind meter measuring air velocity in an. For instance, maybe the largest circle is 30 hours and the next one is 20. 1 BTMETER BT-100 Handheld Anemometer, Digital Wind Speed CFM Meter Gauge Air Flow Velocity Tester for HVAC Shooting Drone, Wind Chill, 14-113 Wind Temperature 3,769 6 offers from 30. (Wind meters to measure wind speed, temperature, humidity, dew point, wind chill).Instead, just look at the numbers on the wheel and subtract them as you did with the percentage. Some wind roses will have the circles already marked in days or hours so you don't have to calculate this number.Small, compact, and rugged, the Xplorer 1 is one of. Multiple the number of days by the percentage and then divide by 100: 16 x 14 = 224, 224 / 100 = 2.24 days. Built in Switzerland, the Skywatch Xplorer 1 windmeter is a extremely accurate way to measure the wind. You noticed that the wind blew from the north at 15 to 25 miles (24 to 40 km) 14 percent of the time. For instance, say the study was over 16 days, from April 1st to April 16th.Figure out how many hours or days the study covers by adding up the time between the dates or hours given, then calculate the percentage of that time period using the percentage from the previous step. ![]() If you need to know how long the wind was at each speed, you can use the date(s) listed and the percentage you calculated from the spoke and rings to figure it out. Calculate the percentage of time the wind blew at a certain speed. ![]()
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