Difference between revisions of "HIP:wind"
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* [[http://www.ofcm.gov/fmh-1/fmh1.htm Federal Meteorological Handbook No. 1]] - Surface Weather Observations and Reports | * [[http://www.ofcm.gov/fmh-1/fmh1.htm Federal Meteorological Handbook No. 1]] - Surface Weather Observations and Reports | ||
** [[http://www.ofcm.gov/fmh-1/pdf/E-CH5.pdf Wind Section in Handbook]] | ** [[http://www.ofcm.gov/fmh-1/pdf/E-CH5.pdf Wind Section in Handbook]] | ||
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=== Indiana State Climate Office === | === Indiana State Climate Office === | ||
* 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. | ||
| + | === METAR === | ||
| + | * http://metar.noaa.gov/ | ||
| + | * METAR is the international standard code format for hourly surface weather observations which is analogous to the SA coding currently used in the US. | ||
| + | === World Meteorological Organization === | ||
| + | * http://www.wmo.ch/index-en.html | ||
== Databases == | == Databases == | ||
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* Lists wind direction, speed, and gust. | * Lists wind direction, speed, and gust. | ||
| − | == | + | == Damping Techniques == |
* 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. | ||
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==External Links== | ==External Links== | ||
Revision as of 15:52, 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.
METAR
- http://metar.noaa.gov/
- METAR is the international standard code format for hourly surface weather observations which is analogous to the SA coding currently used in the US.
World Meteorological Organization
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.
External Links
- International Weather Watchers Observer Handbook
- CWOP Weather Station Siting, Performance, and Data Quality Guide
- Averaging Wind Speed and Direction
- Wind Energy Resource Atlas of the United States
- Vector vs. Scalar Averaging of Wind Data
- http://www.ndbc.noaa.gov/wndav.shtml
- http://www.windustry.org/resources/WIND%20PROSPECTING_Monitoring%20at%20Site_FEB05.pdf
