id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
943	IMPORTANT: Condolidation and refactoring due to new 2D Kernels and WEC	arango		"The **ROMS** source code was consolidated due to changes for new developments:

 * Major update to **ROMS** barotropic kernel (**step2d**) using the Generalized Forward-Backward 3rd-order Adams-Bashforth /4th-order Adams-Moulton (**FB AB3-AM4**) time stepping algorithm (Shchepetkin and !McWilliams, 2005; 2009)

 * Implementation of the adaptive, Courant-number-dependent implicit scheme for vertical advection (Shchepetkin, 2015), which splits **omega** vertical velocity into explicit (**W**) and implicit (**Wi**) components. 

 * Porting the Waves Effect on Currents (**WEC**) based on the Vortex Force formulation of Uchiyama ''et al.'' (2010) and Kumar ''et al.'' (2012) based on **COAWST** implementation.

The actual algorithms are not released yet. However, it will be available soon in the ** ROMS !GitHub** repository in [[span(style=color: #0000FF, **feature/kernel**)]] and [[span(style=color: #0000FF, **feature/wec**)]] branches.

[[span(style=color: #0000FF,The feature branches are intended for superusers, advanced users, and beta testers)]].

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== [[span(style=color: #FF0000, **WARNING**)]] ==

* All the standard input files [[span(style=color: #0000FF, **roms_*.in**)]] were modified to add new output fields to **HISTORY**, **QUICKSAVE**, **AVERAGES**, and **DIAGNOTIC** files.

* The [[span(style=color: #0000FF, **varinfo.yaml**)]] metadata file was updated for the new variables.

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Many thanks to Sasha Shchepetkin and John Warner for their help designing and implementing these algorithms."	upgrade	closed	major	Release ROMS/TOMS 4.2	Nonlinear	4.2	Done