# Ocean Modeling Discussion

ROMS/TOMS

Search for:
 It is currently Wed Sep 18, 2019 7:35 am

 Page 1 of 1 [ 1 post ]
 All times are UTC
Author Message
 Post subject: question on VstretchingPosted: Fri Nov 09, 2012 2:03 pm

Joined: Wed Mar 31, 2010 3:29 pm
Posts: 87
Location: SKLEC,ECNU,Shanghai,China
Hi roms's friends

Simplified: How to give the values for theta_s and theta_b according to different kinds of Vstretching = 1,2,3,4? Here and follows i would use 1,2,3,4 to represent.

Narrate: Now there are four schemes for we to choose on vertical stretching, and as i know the 2 and 4 were hingly recommended either on the forum or in some documents/literatures. Frankly, i have no idea that which one was suitable to a particular case, and how to choose one from the four,especially how to specify the values related to them.

Here,https://www.myroms.org/forum/viewtopic.php?f=13&t=1233&hilit=Vstretching, Hernan told we to use 3 in very shallow sediment applications(<200m). If we have more shallow than that, say 5~50 m, the 3? Do we have any thumb rule to follow to use the formular which tells the most reasonable under that particular situation?

With regard to theta_s and friend, i have saw so many different values gaven to them within the range given by https://www.myroms.org/wiki/index.php/Vertical_S-coordinate.

What i want to clarify:

1. How to choose the stretching scheme if i take the followings into account: surface boundary layer(SBL)/bottom boundary layer(BBL)/water depth(topography)(or any other condition which might affected by different stretching formular).

2. How to specify the values for theta_s,theta_b when one of the stretching schemes was used. I have tested the values within the range of meaningful given by the roms's manual(P121) and have found significant difference based on what values i choosed for them, say theta_s = 10.0(0.00001) and theta_b = 0.00001(4.0).

3. Something related to Tcline.

-shou

Top

 Display posts from previous: All posts1 day7 days2 weeks1 month3 months6 months1 year Sort by AuthorPost timeSubject AscendingDescending
 Page 1 of 1 [ 1 post ]

 All times are UTC

#### Who is online

Users browsing this forum: No registered users and 1 guest

 You cannot post new topics in this forumYou cannot reply to topics in this forumYou cannot edit your posts in this forumYou cannot delete your posts in this forumYou cannot post attachments in this forum

Search for:
 Jump to:  Select a forum ------------------ News, Events & Job Opportunities    Meetings/Workshops    Job Opportunities    Ocean News ROMS/TOMS    ROMS Adjoint    ROMS Benchmarks    ROMS Bugs    ROMS Discussion    ROMS Documentation    ROMS Ecosystem    ROMS FAQ    ROMS Ice    ROMS Information    ROMS Installation    ROMS Known Problems    ROMS Messages    ROMS Problems    ROMS Releases    ROMS Results    ROMS Sediment    ROMS Source    ROMS Tips    ROMS Tools and Techniques    ROMS Trivia    ROMS Usage    ROMS Webinar    ROMS Wish List ROMS/TOMS Applications    User Applications    Adriatic Sea Ocean Modeling    Ocean Modeling FAQ