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AUTHORS | == flextract reference == | ||
'''AUTHORS:''' | |||
Alexander Läderach, Harald Sodemann | Alexander Läderach, Harald Sodemann | ||
PURPOSE: | '''PURPOSE:''' | ||
Extract trajectories from FLEXPART particle binary format and convert them to LAGRANTO-format. | Extract trajectories from FLEXPART particle binary format and convert them to LAGRANTO-format. | ||
AVAILABLE DATA: | '''AVAILABLE DATA:''' | ||
5 mio. global FLEXPART-trajectories covering 1979-01-02 00:00 to | 5 mio. global FLEXPART-trajectories covering 1979-01-02 00:00 to 2019-08-30 15:00 UTC. | ||
Stored at <code>Data/gfi/met/flexpart/erainterim/global/global_corr/</code> (input-path). | |||
GET STARTED: | '''GET STARTED:''' | ||
Create a settings-file with the following structure | Create a settings-file with the following structure: | ||
<pre> | <pre> | ||
# --------------------------------------------------------- # | # --------------------------------------------------------- # | ||
# Settings to extract FLEXPART trajectories from database # # NOTE: All lines beginning with # and empty ones ignored # # --------------------------------------------------------- # | # Settings to extract FLEXPART trajectories from database # | ||
# Path to the FLEXPART trajectory files (Input) / | # NOTE: All lines beginning with # and empty ones ignored # | ||
# Path to store trajectories in LAGRANTO-format (Output) / | # --------------------------------------------------------- # | ||
# Begin time (Year Month Day Hour Min Sec) 2000 1 1 0 0 0 | # Path to the FLEXPART trajectory files (Input) | ||
# End time (Year Month Day Hour Min Sec) 2000 1 2 0 0 0 | /Data/gfi/met/flexpart/erainterim/global/global_corr/ | ||
# Timestep (hours) | |||
# Trajectory length (hours) 24 | # Path to store trajectories in LAGRANTO-format (Output) | ||
# Only consider each nth-particle only (1=each of the 5mio. particles) # NOTE: could lead to huge output if too small | /Data/gfi/work/<USERNAME>/ | ||
# Begin time (Year Month Day Hour Min Sec) | |||
# NOTE First date for which trajectories are calculated | |||
2000 1 1 0 0 0 | |||
# End time (Year Month Day Hour Min Sec) | |||
# NOTE Last date for which trajectories are calculated | |||
2000 1 2 0 0 0 | |||
# Timestep (hours) | |||
# NOTE always positive | |||
6 | |||
# Trajectory length (hours) | |||
# NOTE positive for forward trajectories, negative for backward | |||
24 | |||
# Only consider each nth-particle only (1=each of the 5mio. particles) | |||
# NOTE: could lead to huge output if too small | |||
10 | 10 | ||
# Target area (minlon maxlon minlat maxlat) 5 17 43 49 | |||
# Target area (minlon maxlon minlat maxlat) | |||
5 17 43 49 | |||
</pre> | </pre> | ||
USAGE: | '''USAGE:''' | ||
./flextract <settings-file> | ./flextract <settings-file> | ||
NOTE: | '''NOTE:''' | ||
The minimal timestep for the trajectories to be extracted is 3 hours. The timesteps 00 06 12 18 are given by the ERA-interim reanalysis and the 03 09 15 21 timesteps are given by the forecasts of the model used to produce ERA-interim. | The minimal timestep for the trajectories to be extracted is 3 hours. The timesteps 00 06 12 18 are given by the ERA-interim reanalysis and the 03 09 15 21 timesteps are given by the forecasts of the model used to produce ERA-interim. | ||
Revision as of 21:55, 20 April 2020
flextract reference
AUTHORS:
Alexander Läderach, Harald Sodemann
PURPOSE:
Extract trajectories from FLEXPART particle binary format and convert them to LAGRANTO-format.
AVAILABLE DATA:
5 mio. global FLEXPART-trajectories covering 1979-01-02 00:00 to 2019-08-30 15:00 UTC.
Stored at Data/gfi/met/flexpart/erainterim/global/global_corr/ (input-path).
GET STARTED:
Create a settings-file with the following structure:
# --------------------------------------------------------- # # Settings to extract FLEXPART trajectories from database # # NOTE: All lines beginning with # and empty ones ignored # # --------------------------------------------------------- # # Path to the FLEXPART trajectory files (Input) /Data/gfi/met/flexpart/erainterim/global/global_corr/ # Path to store trajectories in LAGRANTO-format (Output) /Data/gfi/work/<USERNAME>/ # Begin time (Year Month Day Hour Min Sec) # NOTE First date for which trajectories are calculated 2000 1 1 0 0 0 # End time (Year Month Day Hour Min Sec) # NOTE Last date for which trajectories are calculated 2000 1 2 0 0 0 # Timestep (hours) # NOTE always positive 6 # Trajectory length (hours) # NOTE positive for forward trajectories, negative for backward 24 # Only consider each nth-particle only (1=each of the 5mio. particles) # NOTE: could lead to huge output if too small 10 # Target area (minlon maxlon minlat maxlat) 5 17 43 49
USAGE:
./flextract <settings-file>
NOTE:
The minimal timestep for the trajectories to be extracted is 3 hours. The timesteps 00 06 12 18 are given by the ERA-interim reanalysis and the 03 09 15 21 timesteps are given by the forecasts of the model used to produce ERA-interim.