# three imposed boundary

**URL:** <https://opentelemac.org/forum/t/three-imposed-boundary/5710>\
**Category:** TOMAWAC\
**Created:** [July 30, 2019, 5:24am UTC](https://opentelemac.org/forum/t/three-imposed-boundary/5710 "2019-07-30T05:24:08Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![user\_9297](https://opentelemac.org/forum/letter_avatar_proxy/v4/letter/u/ac91a4/32.png) [@user\_9297](https://opentelemac.org/forum/u/user_9297)\
**Post date:** [July 30, 2019, 5:24am UTC](https://opentelemac.org/forum/t/three-imposed-boundary/5710/1 "2019-07-30T05:24:08Z")

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in my oceanic and coastal domains, there are three open boundaries which need spectrum information from oceanic mesh to the coastal mesh. how can I setup in my cas file?

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**Author:** ![user\_8473](https://opentelemac.org/forum/letter_avatar_proxy/v4/letter/u/8c91f0/32.png) [@user\_8473](https://opentelemac.org/forum/u/user_8473)\
**Post date:** [July 31, 2019, 9:58am UTC](https://opentelemac.org/forum/t/three-imposed-boundary/5710/2 "2019-07-31T09:58:53Z")

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This is done in test case impose\_spectra, just change with your data and it should work.