Changes between Version 10 and Version 11 of doc/app/virtual_measurement_parameters

Timestamp:

Feb 11, 2020 6:21:05 PM (5 years ago)

Author:

suehring

Comment:

--

doc/app/virtual_measurement_parameters

@@ -5 +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. 
 
-For different measurement sites the variables which should be sampled can be prescribed individually. Variables will be sampled at each model time step at all given coordinates and adjacent grid points.
-The sampled data is written into binary files. PALM-4U comes with a post-processor (please see https://palm.muk.uni-hannover.de/trac/browser/palm/trunk/UTIL/combine_virtual_measurements), which merges data from the binary files and gives a single NetCDF file with all virtually sampled data for each prescribe site. 
+For different measurement sites the variables which should be sampled can be prescribed individually. 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. As parallel NetCDF output does not allow unlimited dimensions, the time dimension needs to be defined at the beginning of a simulation. In case the number of sampled timesteps exceeds the number of defined timesteps, PALM forces a restart run, so that you need to set the activation string {{{palmrun ... -a "d3# restart"}}}.
 
-In order to setup the measurement locations, a measurement setup file is required. This file contains all information about the measurement coordinates, the type of the measurement, and further attributes. For a description of required attributes and variables, as well as an example input file, please see [../iofiles/pids#virtual_measurement_input here].    
 
+In order to setup the measurement locations, a measurement setup file is required. This file contains all information about the measurement coordinates, the measured variables, the type of the measurement (timeseries- profile-, or trajectory measurements), as well as further attributes such as site names, etc.. For a description of required attributes and variables, as well as an example input file, please see [../iofiles/pids#virtual_measurement_input here]. 
+Since revision -r4400 PALM comes with a preprocessor script {{{palm_cvd}}} (you can find it under /palm/current_version/trunk/SCRIPTS), which is a python3 script and setup the input file according to your prescribed observation locations.     
+
+preprocessor script
 \\