Hi, I want to get three years of hourly wind speed data at 50 meters height for specific locations in Turkey. Unfortunately, I couldn't find any good websites for this. Do you know any online sources for this?
I doubt you can find any public-domain measurement at that height. Public data from airport are normally done at 10 m. Wind developers might have that kind of data from their wind resource stations, but this is typically proprietary. Your best solution would be to use data from reanalysis and correct the modeled wind speed to take the height difference into consideration.
Check https://power.larc.nasa.gov/
The height may be corrected using the wind shear exponent method.
Thanks for the answer, Chris Gueymard . And thank you Mohamed EL-Shimy , I was using that webiste, but there is no hourly data there, so that's why I was searching around for hourly wind speed data.
https://power.larc.nasa.gov/data-access-viewer/
look for wind speed
You'll will obtain the wind speed you need.
On Nasa website, point your location on the map using the pinter from the left side ( or you can introduce direct your lat/lon .
After that choose the time period for informations, and below choose meteorology - wind at 50m.
After that you have to calculate the wind speed probability... it is more laborious.
If you have this probability, you can look for a wind turbine :)
Hope to be on service,
Sorin
Nearly all long-term, wind speed, airport data sets around the world are collected by anemometers at 10 metres above the local terrain (or adjusted to 10 metres in reporting) which is generally defined as "open country". The United States NCDC (National Climatic Data Centre) has an excellent, publicly-available data set for airport anemometers all over the world. These data are available on CDs and, I believe, their website. Once you have found the airport in Turkey (each numbered separately for all international anemometers; many with decades of record) and confirmed that the approach conditions are open-country you may adjust the data from 10 m to 50 m using an open-country boundary-layer profile (via either a gust profile, or conversion to a mean velocity, via Durst curve or similar, and use a power-law mean profile - exponent typically about 0.14). Three years of hourly gust data (perhaps multiple three years segments) should not be hard to find on the NCDC data set. Good luck. LC
Hi, Rasul Akbarov , of course. I will be using this data to estimate Weibull parameters of some new and old methods and compare these methods by measuring their accuracy.
Got it, thanks. I thought that the height for the main wind processes is several hundred meters.
Ahmet Emre Onay, You can click any location and select the data type (Hourly, daily etc.), select dates, then click process, download result. this will give 10m height data, use power law or logarithmic law to convert to 50 m. Also, you can check Global wind atlas
http://www.soda-pro.com/web-services/meteo-data/merra
https://globalwindatlas.info/
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