Difference between revisions of "IsoMet Tools"

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(Created page with "flextract reference AUTHORS Alexander Läderach, Harald Sodemann PURPOSE: Extract trajectories from FLEXPART particle binary format and convert them to LAGRANTO-format. A...")
 
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flextract reference
 
  
AUTHORS
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== 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 2013-12-31 15:00 UTC. Stored at /tempest/sdisk/alexander/flexpart/global_corr/(input-path).
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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 (smaller, bold font):
+
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 # # --------------------------------------------------------- #
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# Settings to extract FLEXPART trajectories from database #  
# Path to the FLEXPART trajectory files (Input) /tempest/sdisk/alexander/flexpart/global_corr/
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# NOTE: All lines beginning with # and empty ones ignored #  
# Path to store trajectories in LAGRANTO-format (Output) /home/alaedera/progs/flextract/
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# --------------------------------------------------------- #
# Begin time (Year Month Day Hour Min Sec) 2000 1 1 0 0 0
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# Path to the FLEXPART trajectory files (Input)  
# End time (Year Month Day Hour Min Sec) 2000 1 2 0 0 0
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/Data/gfi/met/flexpart/erainterim/global/global_corr/
# Timestep (hours) 3
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# Trajectory length (hours) 24
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# 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
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/Data/gfi/work/<USERNAME>/
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 +
# 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
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 +
# 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 23:55, 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.