Blame | Last modification | View Log | Download | RSS feed
.TH Lagrantohelp.SH NAME.B Lagranto -calculate trajectories for ECMWF analyses and forecasts.SH SYNOPSIS.B lagrantohelp [topic|tutorial|reference|future] -show this man page or the one corresponding to a specific topic. All.Iunderlinednames in this document have their own man page. If "tutorial" is chosen,a detailed tutorial for Lagranto is opened. For "reference" a PDF document with all man pages is opened. Finally, with option "future" plans for additional features will be listed..SH DESCRIPTIONLagranto is a software tool (UNIX shell-scripts and Fortran programs) to analyzeLagrangian aspects of atmospheric phenomena. It requires a time-series of3-dimensional wind fields (and if necessary further variables) on netCDF files..SH CORE PROGRAMS.TP 15.I create_startfcreate starting files.TP 15.I caltracalculate trajectory positions.TP 15.I tracetrace meteorological fields along trajectories.TP 15.I selectselect trajectories based on several criteria.TP 15.I densitycreate netCDF files with trajectory densities.SH TRAJECTORY TOOLS.TP 15.I extractextract single trajectories, times or columns from a trajectory file.TP 15.I list2lsltransform a (longitude,latitude,pressure) list into a trajectory file.TP 15.I lsl2listtransform a trajectory file into a (longitude,latitude,pressure) list.TP 15.I mergetramerge two trajectory files.TP 15.I reformatchange the format of a trajectory file.TP 15.I timereschange the time resolution of a trajectory file with interpolation.TP 15.I trainfowrite some information about a trajectory file.TP 15.I differencecalculate the difference between two trajectory files.SH NETCDF TOOLS.TP 15.I changecstchange the constants filename on a netCDF file.TP 15.I changetchange the time on a netCDF file.TP 15.I getmimaget the minimum and maximum value of a field on a netCDF file.TP 15.I getvarsget a list of fields on a netCDF file.SH GENERAL TOOLS.TP 15.I newtimeget a new date from an initial date and an offset in hours.TP 15.I gettidiffget the time difference between two dates.SH VISUALISATIONLagranto comes with two packages for visualisation of trajectories: one based on Matlab (www.mathworks.com) and one based on NCL (www.ncl.ucar.edu). Examples are provided in folder "figure" of the Lagranto installation..SH AUTHORWritten by Michael Sprenger and Heini Wernli (January 2011)