id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
727	Added new Matlab scripts	arango	arango	"Several Matlab scripts were added:

* '''4dvar/obs_extract.m''': Extracts data from input data assimilation observations NetCDF file at the requested time interval (days) and creates new observations NetCDF files at such intervals.  This script may be used to generate input observation NetCDF files for the Ensemble Kalman Filter ('''EnKF''') from '''4D-Var''' observations files. That is, they can be used for 3-dimensional First Guess at Appropriate Time ('''3D-FGAT''') data assimilation with '''EnKF'''.

* '''utility/daynum.m''': Converts requested date (year, month, day, ...) into a serial date number. It uses the Proleptic Gregorian Calendar, which extends backward the date preceding 15 October 1582 with a year length of '''365.2425''' days. It is similar to Matlab function '''datenum''' but differs on the origin ('''day=0'''), which corresponds to '''Mar 1, 0000'''.

* '''utility/dayvec.m''': Converts a given date number as computed by '''daynum''' to a date vector (year, month, day, hour, minutes, seconds).  It is the inverse function to '''daynum'''.  It is equivalent the native '''datevec''' function.

* '''utility/inferno.m''': A 256 colormap by Nathaniel J. Smith and Stefan van der Walt.

* '''utility/magma.m''': A 256 colormap by Nathaniel J. Smith and Stefan van der Walt.

* '''utility/plasma.m''': A 256 colormap by Nathaniel J. Smith and Stefan van der Walt.

* '''utility/viridis.m''': A 256 colormap by Eric Firing.

* '''utility/yearday.m''': Given (year, month, day) this function computes the day of the year.

I also updated '''4dvar/obs_read.m''', l'''andmask/uvp_masks.m''', and n'''etcdf/roms_metadata.m''' scripts.

Try the new colormap palettes.  Maybe some of you have used these palettes before."	upgrade	closed	major	Matlab Processing Scripts	Matlab	3.7	Done