Changes between Version 16 and Version 17 of doc/app/virtual_measurement_parameters


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Timestamp:
Feb 25, 2020 11:19:29 AM (5 years ago)
Author:
suehring
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  • doc/app/virtual_measurement_parameters

    v16 v17  
    33
    44Since -r3707 a virtual-measurement module is available in PALM. The module enables an easy setup of virtual measurements in the model domain emulating 'real-world' observations. Virtual measurement locations are placed within the model domain according to the UTM coordinates of the 'real-world' observations. This way, not only point and profile measurements can be emulated in the model, but also complex trajectories such as spiral-shaped flight measurements or bicycle/pedestrian measurements. With masked data output this would be hardly possible.
    5 Please note, to correctly setup the virtual measurement locations the origin UTM coordinates of the lower-left edge of the model domain ([../iofiles/pids#origin_x origin_x], [../iofiles/pids#origin_y origin_y]) within the static input file should be as accurate as possible.
     5Please note, to correctly setup the virtual measurement locations the origin UTM coordinates of the lower-left edge of the model domain ([../iofiles/pids#origin_x origin_x], [../iofiles/pids#origin_y origin_y]) within the static input file should be as accurate as possible since these are used to place the virtual site. Note, only sites that are located within the model domain will be setup, for sites outside your domain no NetCDF will be created.
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    77For different measurement sites the variables which should be sampled can be prescribed individually for each site. Variables will be sampled at each model time step at all given coordinates and adjacent grid points. Virtually sampled data is output using parallel NetCDF.