shanewind
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Hi WAsP Thanks for your reply. Have you any further information in relation to what is required as inputs for WAsP 12 tall profile? The 3D sonic anemometer manufacturers require to know the following: *what parameters/variables are required to be recorded *at what sampling frequency is this data required to be recorded (ie. very high frequency in the sonic "Online calculation" @ high frequency, or normal frequency in logger eg @ 1 second frequency) *what timestep is the data required at *what manner of data is required ie. timestep average / st. dev / mode of data? We will need to order our sonic anemometry soon as the masts are due to go up soon, therefore it would be ideal to ensure that the correct sonic anemometer and logger setup is installed to ensure that the data will be useful for use with WAsP 12 tall profile. Thanks, Shane
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I presume since a sonic anemometer can record air temperature, there is no need for a top mounted temperature sensor for option 1 (single top mounted 3D sonic anemometer)?
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Hi Thanks for the reply. I presume then these are the two minimum alternatives then for an onshore wind site? 1. a top mounted 3D sonic anemometer (recording what exact measurements?) 2. temperature, pressure, relative humidity and wind speed recorded at the same heights for 2 heights; one near the bottom of the mast and one near the top Any further guidance would be great, just to ensure the measurements will be sufficient for WAsP 12, thanks!
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I am currently writing the specification for some new masts that would be for quite tall hub height wind turbines. I am aware that WAsP 12 should have the “tall profile” option in the WAsP project parameters. I suspect that this will then require inputs from a sonic anemometer(s), or will temperature readings at mast height and close to the ground be sufficient to gauge the temperature profile? I want to ensure that the new masts will have all the required data and instrumentation for the new WAsP version. Any guidance for mast specification would be greatly appreciated.