Attached to the basket are instruments measuring GPS, altitude, wind speed and direction. |
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We used this same technique when the instrument measuring the solar wind speed was still working. |
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An automatic weather station was also installed to record rainfall, wind speed and wind direction. |
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At the height of the gale, the harbourmaster radioed a coastguard on the spot and asked him to estimate the wind speed. |
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Offering four different models, these handheld digital instruments quickly and easily read wind speed via a sturdy impeller. |
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These are poles at the side of the road to measure temperature, wind speed, rainfall and fog density. |
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Specifically, westerly winds blow stronger, but changes in wind speed and direction occur all over the planet. |
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I would imagine that it only works well uphill, since it cannot know the wind speed and the rider's aerodynamic drag. |
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The same computer also takes constant note of the current wind speed, from an anemometer mounted next to the wind vane. |
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Look at hodographs derived from 8 a.m. wind speed and direction data for Flint and Peoria. |
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After wind speed is accounted for, ammonia emissions are then calculated via a micrometeorological method. |
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Although some gusts were as strong as a hurricane the average wind speed was only sufficient to classify the storm as a severe gale. |
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In addition to measuring wind speed it also measures temperature, wind chill, dew point, humidity, and heat stress. |
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Near the ground, thunderstorms sometimes create quick changes in wind speed and direction, called wind shear, which has caused several crashes. |
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Across much of the Great Plains, the annual average wind speed is about 13.4 miles per hour. |
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With a sustained wind speed of 165 mph for 12 hours, with occasional gusts measured at between 185 to 200 mph, the building swayed alarmingly. |
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Airscrew performance depends on the wind speed as well as the rotational speed. |
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There had been a storm warning at 1.15 p.m., with the wind speed touching 50 knots and the waves rising up to 25 feet. |
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One day last winter, the tiny cups on an anemometer that measures wind speed on the turbine began gathering ice. |
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First, the study investigated model fit using all of the meteorological variables at various points of time, cross products of wind speed and direction, and traffic. |
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Gradually, the wind speed slacks, skies clear and temperatures moderate. |
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If a geostrophic wind, with pressure gradient force balanced by the Coriolis force, were to encounter a rough surface, the wind speed would decrease. |
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Such lows usually form when a strong wind speed maximum riding along the main belt of westerly jet stream winds dives into a deep upper-level trough or dip in the jet. |
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A 14 percent increase in wind speed is an almost 50 percent increase in destructiveness. |
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Neither of the values of wind speed is measured directly, both the Indian and US-based groups estimate the wind speed from satellite images. |
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It also hosts solar panels and an array of anemometers to measure wind speed and direction. |
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It features a number of sensor specifications, including rain gauge, wind speed and direction, temperature, humidity, and total solar radiation. |
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The speed of peak gusts and mean wind speed follow a similar pattern throughout the year. |
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Evolving from tropical depressions, they turn into tropical storms, then hurricanes, as they increase in wind speed. |
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The primary determinants of wind power availability are wind speed statistics, consisting of mean wind speeds and gustiness. |
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A mean annual wind speed of 18 kmph and 22 kmph respectively is considered as the minimum required for feasible generation of electricity. |
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Wind shear affects sailboats in motion by presenting a different wind speed and direction at different heights along the mast. |
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How closely a boat can sail into the wind depends on the boat's design, sail shape and trim, the sea state, and the wind speed. |
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As the wind speed increases the crew should progressively reduce the amount of sail. |
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Where v is the equivalent wind speed at 10 metres above the sea surface and B is Beaufort scale number. |
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The data provides details of wind speed and direction, air temperature, cloud type and tops, and other features. |
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Conversely, a large generator would cost more but generate little extra power and, depending on the type, may stall out at low wind speed. |
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Unlike 'static' wind speed atlases which give a single average speed across multiple years, tools such as Renewables. |
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To assess prospective wind power sites a probability distribution function is often fit to the observed wind speed data. |
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Wind turbines are classified by the wind speed they are designed for, from class I to class IV, with A or B referring to the turbulence. |
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When a turbine is mounted on a rooftop the building generally redirects wind over the roof and this can double the wind speed at the turbine. |
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As long as the waves propagate slower than the wind speed just above the waves, there is an energy transfer from the wind to the waves. |
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A given wind speed has a matching practical limit over which time or distance will not produce larger waves. |
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Since the wind speed profile is logarithmic to the water surface, the curvature has a negative sign at this point. |
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Collection of site specific data for wind speed and direction is crucial to determining site potential in order to finance the project. |
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Specific criteria were also set for wind speed, visibility, and cloud cover. |
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The Carnot perspective provides an upper bound on the maximum wind speed that a storm can attain. |
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This fact leads to the existence of a theoretical upper bound on the strongest wind speed that a tropical cyclone can attain. |
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This feedback is offset when frictional dissipation, which increases with the cube of the wind speed, becomes sufficiently large. |
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It is the site of the second highest recorded wind speed on Earth, and has the reputation of having the world's most severe weather. |
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It is an empirical measure for describing wind speed based mainly on observed sea conditions. |
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First, the wind speed closest to the midpoint of range has the greatest effect on the projectile. |
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Wind shear is a sudden change in wind speed or direction and can be dangerous, especially for planes near the ground. |
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There has been no change to the policy of showing wind speed and direction when the wind is the main story and isobars would be displayed where they were helpful to viewers. |
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Just outside the termination shock is the heliosheath, where the solar wind continues to slow, reaching a stagnation region where solar wind speed drops to zero. |
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They have also been learning about the importance the weather has in their own community and have made rain gauges and discussed measuring wind speed in Norton. |
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In addition, for measuring of wind speed used from four-cup-anemometer. |
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The flag method is the most common method used to estimate wind speed. |
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There he became acquainted with the civil engineer John Smeaton, who during the course of his studies on windmills had devised a descriptive scale for grading wind speed. |
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The mountains can also cause wide variation in local wind speed and direction due to their sheltering and channeling effects adding to the climatic variation. |
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A wind rose is a graphic tool used by meteorologists to give a succinct view of how wind speed and direction are typically distributed at a particular location. |
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Different locations will have different wind speed distributions. |
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