# Free boundary condition in tomawac

**URL:** <https://opentelemac.org/forum/t/free-boundary-condition-in-tomawac/5122>\
**Category:** TOMAWAC\
**Created:** [August 1, 2018, 6:28am UTC](https://opentelemac.org/forum/t/free-boundary-condition-in-tomawac/5122 "2018-08-01T06:28:50Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![user\_11919](https://opentelemac.org/forum/letter_avatar_proxy/v4/letter/u/47e85d/32.png) [@user\_11919](https://opentelemac.org/forum/u/user_11919)\
**Post date:** [August 1, 2018, 6:28am UTC](https://opentelemac.org/forum/t/free-boundary-condition-in-tomawac/5122/1 "2018-08-01T06:28:50Z")

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Dear [name removed],

I have wind file (.slf) varying in both time and space.

With this wind forcing, I would like to run TOMAWAC and validate the spectral parameters of the model (HM0 and Tp) with ECMWF data.

In this regard I need to give the boundary condition but i don’t know how to give the boundary condition.

Any help is highly appreciated.

Thanks in advance,

G. Uma