Difference between revisions of "HIP:wind"
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* http://shadow.agry.purdue.edu/sc.hly-faq.html#q11 | * http://shadow.agry.purdue.edu/sc.hly-faq.html#q11 | ||
* Measures once every second, averaged every 5 seconds. The 5 second averages are used in the 2-minute average. | * Measures once every second, averaged every 5 seconds. The 5 second averages are used in the 2-minute average. | ||
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== Databases == | == Databases == | ||
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* The mode is consisidered the prevailing wind direction. | * The mode is consisidered the prevailing wind direction. | ||
* Dividing each recording into a north-south and east-west vector, averaging them, and then reassembling the vectors. | * Dividing each recording into a north-south and east-west vector, averaging them, and then reassembling the vectors. | ||
| + | * http://www.webmet.com/met_monitoring/62.html | ||
==External Links== | ==External Links== | ||
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*http://www.ndbc.noaa.gov/wndav.shtml | *http://www.ndbc.noaa.gov/wndav.shtml | ||
*[[http://www.windustry.org/resources/WIND%20PROSPECTING_Monitoring%20at%20Site_FEB05.pdf Monitoring at Site]] | *[[http://www.windustry.org/resources/WIND%20PROSPECTING_Monitoring%20at%20Site_FEB05.pdf Monitoring at Site]] | ||
| + | * [[http://metar.noaa.gov/ METAR]] | ||
| + | * [[http://www.wmo.ch/index-en.html World Meteorological Organization]] | ||
Latest revision as of 15:31, 3 April 2006
Contents
Standards
- Three types recorded: speed, direction, and gusts.
- Instantaneous velocities are sampled every 30 seconds.
- Wind direction is recorded in degrees from true north [5.5.1].
- Average wind direction and speed is determined by averaging the values over a 2-minute period [5.4].
- Wind gusts are the maximum instantaneous speed in the past 10 minutes [5.5.4].
Documents
Federal Meteorological Handbook
- [Federal Meteorological Handbook No. 1] - Surface Weather Observations and Reports
Indiana State Climate Office
- http://shadow.agry.purdue.edu/sc.hly-faq.html#q11
- Measures once every second, averaged every 5 seconds. The 5 second averages are used in the 2-minute average.
Databases
Indiana Climate Data Access
Farmland
- http://shadow.agry.purdue.edu/cgi-bin/map_patrol/images/cd_zen.map?162,104
- Lists wind direction, speed, and gust.
Damping Techniques
- The mode is consisidered the prevailing wind direction.
- Dividing each recording into a north-south and east-west vector, averaging them, and then reassembling the vectors.
- http://www.webmet.com/met_monitoring/62.html
