ROMS Adjoint

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Where to introduce obs error

Last post by xavierC « Thu Apr 02, 2020 7:09 pm
Replies: 2
by xavierC » Thu Apr 02, 2020 6:50 pm

2 Replies

75 Views

Last post by xavierC
Thu Apr 02, 2020 7:09 pm
Adjoint compilation error with define VISC4 and DIFF4

Last post by robertson « Thu Mar 05, 2020 3:14 pm
Replies: 1
by xavierC » Wed Feb 26, 2020 4:07 pm

1 Replies

163 Views

Last post by robertson
Thu Mar 05, 2020 3:14 pm
4DVAR assimilation of surface velocities destroy sst

Last post by arango « Thu Feb 06, 2020 5:20 pm
Replies: 3
by xavierC » Thu Jan 30, 2020 10:07 am

3 Replies

343 Views

Last post by arango
Thu Feb 06, 2020 5:20 pm
I4DVAR rewriting roms_ini.nc with new time unit

Last post by xavierC « Thu Jan 09, 2020 4:47 pm
Replies: 1
by xavierC » Thu Jan 09, 2020 3:30 pm

1 Replies

85 Views

Last post by xavierC
Thu Jan 09, 2020 4:47 pm
how to conduct adjoint sensitivity by ROMS ADM?

Last post by LiZhou « Mon Jan 06, 2020 1:58 am
Replies: 1
by LiZhou » Sun Jan 05, 2020 8:22 am

1 Replies

105 Views

Last post by LiZhou
Mon Jan 06, 2020 1:58 am
Adjoint Sensitivity Driver

Last post by LiZhou « Sun Jan 05, 2020 8:36 am
Replies: 1
by arango » Wed Sep 21, 2005 3:10 am

1 Replies

2263 Views

Last post by LiZhou
Sun Jan 05, 2020 8:36 am
run_roms_da data assimilation script

Last post by jpm « Fri Nov 22, 2019 1:40 am

by jpm » Fri Nov 22, 2019 1:40 am

0 Replies

206 Views

Last post by jpm
Fri Nov 22, 2019 1:40 am
W4DPSAS: not positive definite algorithm

Last post by Biswamoy_Paul « Mon Aug 26, 2019 5:02 am

by Biswamoy_Paul » Mon Aug 26, 2019 5:02 am

0 Replies

348 Views

Last post by Biswamoy_Paul
Mon Aug 26, 2019 5:02 am
How to build a adjoint modelling framework in ROMS?

Last post by LiZhou « Tue Aug 20, 2019 1:09 am
Replies: 1
by LiZhou » Tue Aug 20, 2019 12:48 am

1 Replies

227 Views

Last post by LiZhou
Tue Aug 20, 2019 1:09 am
CG_DELTA not positive OR Negative Ritz value found.

Last post by xavierC « Wed Jul 10, 2019 8:29 am

by xavierC » Wed Jul 10, 2019 8:29 am

0 Replies

232 Views

Last post by xavierC
Wed Jul 10, 2019 8:29 am
depth of assimilated data

Last post by jivica « Fri Jun 21, 2019 4:51 am
Replies: 2
by xavierC » Thu Jun 20, 2019 8:30 am

2 Replies

480 Views

Last post by jivica
Fri Jun 21, 2019 4:51 am
Inconsistent values of variables in TL initial condition

Last post by wavewatch « Wed Apr 24, 2019 2:55 am
Replies: 3
by Biswamoy_Paul » Thu Jul 19, 2018 1:32 pm

3 Replies

991 Views

Last post by wavewatch
Wed Apr 24, 2019 2:55 am
ad passive tracer!

Last post by jcwarner « Fri Mar 29, 2019 12:32 pm
Replies: 1
by thaitlhp » Fri Mar 29, 2019 8:15 am

1 Replies

398 Views

Last post by jcwarner
Fri Mar 29, 2019 12:32 pm
what are the meanings of adjoint model's input and output

Last post by LiZhou « Wed Jan 23, 2019 6:50 am
Replies: 3
by LiZhou » Tue Oct 23, 2018 8:14 am

3 Replies

845 Views

Last post by LiZhou
Wed Jan 23, 2019 6:50 am
Segmentation fault with I4DVAR

Last post by pmuskee « Fri Nov 30, 2018 2:12 pm

by pmuskee » Fri Nov 30, 2018 2:12 pm

0 Replies

445 Views

Last post by pmuskee
Fri Nov 30, 2018 2:12 pm
Optimal Stochastic Calculation

Last post by LiZhou « Tue Oct 16, 2018 12:12 pm
Replies: 1
by cesare » Mon Jun 04, 2007 9:10 pm

1 Replies

2334 Views

Last post by LiZhou
Tue Oct 16, 2018 12:12 pm
book for adjoint analysis

Last post by j.throatlocust « Wed Oct 10, 2018 12:48 pm
Replies: 1
by fcampos » Sun Oct 07, 2018 6:25 pm

1 Replies

775 Views

Last post by j.throatlocust
Wed Oct 10, 2018 12:48 pm
d_ssh_obs.m

Last post by isoares « Wed Sep 26, 2018 11:43 am

by isoares » Wed Sep 26, 2018 11:43 am

0 Replies

676 Views

Last post by isoares
Wed Sep 26, 2018 11:43 am
Tangent Initial Norm is NaN

Last post by ckerry « Mon Jul 23, 2018 12:00 am
Replies: 2
by leon » Wed Jul 01, 2015 4:23 pm

2 Replies

1798 Views

Last post by ckerry
Mon Jul 23, 2018 12:00 am
Can't run my IS4D-Var case Gnorm = NaN

Last post by ckerry « Sun Jul 22, 2018 11:55 pm
Replies: 8
by Arvin_Yin » Sat Sep 26, 2015 7:52 am

8 Replies

2715 Views

Last post by ckerry
Sun Jul 22, 2018 11:55 pm
Initial gradient norm, Gnorm = NaN

Last post by ckerry « Sun Jul 22, 2018 11:45 pm
Replies: 1
by wavewatch » Wed Mar 28, 2018 1:38 am

1 Replies

777 Views

Last post by ckerry
Sun Jul 22, 2018 11:45 pm
data

Last post by sara.oceanography « Sun Jul 15, 2018 3:11 am

by sara.oceanography » Sun Jul 15, 2018 3:11 am

0 Replies

830 Views

Last post by sara.oceanography
Sun Jul 15, 2018 3:11 am
How to restart the IS4DVAR date assimilation system？

Last post by wavewatch « Tue Jul 10, 2018 5:31 am

by wavewatch » Tue Jul 10, 2018 5:31 am

0 Replies

858 Views

Last post by wavewatch
Tue Jul 10, 2018 5:31 am
weird iteration number in mod.nc file

Last post by leon « Tue Jun 19, 2018 4:29 pm

by leon » Tue Jun 19, 2018 4:29 pm

0 Replies

886 Views

Last post by leon
Tue Jun 19, 2018 4:29 pm
Normalization coefficients

Last post by isoares « Tue May 15, 2018 5:37 pm
Replies: 4
by isoares » Fri May 11, 2018 12:46 pm

4 Replies

1510 Views

Last post by isoares
Tue May 15, 2018 5:37 pm
about the implicit upstream radiation condition

Last post by xiaozhu557 « Wed Mar 28, 2018 8:02 am

by xiaozhu557 » Wed Mar 28, 2018 8:02 am

0 Replies

729 Views

Last post by xiaozhu557
Wed Mar 28, 2018 8:02 am
question about the caculating of om_p, om_u, on_p, on_u

Last post by xiaozhu557 « Tue Mar 27, 2018 1:39 pm
Replies: 5
by xiaozhu557 » Mon Mar 26, 2018 7:56 am

5 Replies

1434 Views

Last post by xiaozhu557
Tue Mar 27, 2018 1:39 pm
how to merge netcdf files into one file

Last post by kate « Wed Mar 21, 2018 3:21 pm
Replies: 1
by pooran » Wed Mar 21, 2018 10:52 am

1 Replies

863 Views

Last post by kate
Wed Mar 21, 2018 3:21 pm
wind stress

Last post by wilkin « Sun Jan 14, 2018 2:50 am
Replies: 2
by onken » Fri Jan 12, 2018 4:01 pm

2 Replies

1222 Views

Last post by wilkin
Sun Jan 14, 2018 2:50 am
ad_LBC with npzd_Powell

Last post by pmuskee « Wed Oct 11, 2017 4:36 pm

by pmuskee » Wed Oct 11, 2017 4:36 pm

0 Replies

956 Views

Last post by pmuskee
Wed Oct 11, 2017 4:36 pm
Offline Heat Budget calculations from ROMS model output

Last post by kunal.c « Thu Sep 14, 2017 12:17 pm
Replies: 8
by aneeshcs » Tue Oct 11, 2011 3:50 am

8 Replies

7411 Views

Last post by kunal.c
Thu Sep 14, 2017 12:17 pm
Error compiling IS4DVAR with TS_U3ADV_SPLIT (TS_DIF4)

Last post by thiago.pdpaula « Fri Jun 16, 2017 10:56 am
Replies: 3
by thiago.pdpaula » Mon Jun 12, 2017 5:07 pm

3 Replies

1837 Views

Last post by thiago.pdpaula
Fri Jun 16, 2017 10:56 am
nonlinear cost function not calculated in PSAS

Last post by arango « Fri Apr 14, 2017 8:29 pm
Replies: 1
by Johannes » Tue Feb 28, 2017 2:32 pm

1 Replies

1211 Views

Last post by arango
Fri Apr 14, 2017 8:29 pm
BICONJ - Balance operator, error in reference free surface

Last post by uranoscopus « Fri Feb 03, 2017 11:48 am
Replies: 1
by uranoscopus » Fri Feb 03, 2017 9:27 am

1 Replies

1004 Views

Last post by uranoscopus
Fri Feb 03, 2017 11:48 am
Input error when including boundary conditions in 4DVar

Last post by Gabriel_Carvalho « Wed Dec 14, 2016 8:20 pm
Replies: 2
by Arvin_Yin » Tue Jul 21, 2015 9:14 am

2 Replies

1864 Views

Last post by Gabriel_Carvalho
Wed Dec 14, 2016 8:20 pm
Cauchy-Poisson wave patterns in velocity increment W4DVAR

Last post by pmuskee « Mon Nov 28, 2016 8:17 pm
Replies: 1
by pmuskee » Tue Oct 25, 2016 1:38 pm

1 Replies

7519 Views

Last post by pmuskee
Mon Nov 28, 2016 8:17 pm
assimilate TSLA into the restart fields of my ROMS model

Last post by Fu_Zhao « Fri Sep 02, 2016 1:26 am

by Fu_Zhao » Fri Sep 02, 2016 1:26 am

0 Replies

5207 Views

Last post by Fu_Zhao
Fri Sep 02, 2016 1:26 am
Unable to find grid variable: visc_factor (GET_GRID) WC13

Last post by pmuskee « Mon May 23, 2016 7:15 pm

by pmuskee » Mon May 23, 2016 7:15 pm

0 Replies

8146 Views

Last post by pmuskee
Mon May 23, 2016 7:15 pm
WC13\Normalization-error!

Last post by zhouchaojie « Thu Jan 21, 2016 1:47 pm

by zhouchaojie » Thu Jan 21, 2016 1:47 pm

0 Replies

3729 Views

Last post by zhouchaojie
Thu Jan 21, 2016 1:47 pm
WC13\Normalization-error!

Last post by zhouchaojie « Wed Jan 20, 2016 8:09 am
Replies: 4
by wangzc » Sat Sep 07, 2013 3:52 pm

4 Replies

3057 Views

Last post by zhouchaojie
Wed Jan 20, 2016 8:09 am
SSH assimilation – No balance but UV still update?

Last post by lmp4 « Thu Dec 10, 2015 5:40 pm

by lmp4 » Thu Dec 10, 2015 5:40 pm

0 Replies

2168 Views

Last post by lmp4
Thu Dec 10, 2015 5:40 pm
Time sets in adjoint model

Last post by wuting0926 « Fri Dec 04, 2015 12:49 pm

by wuting0926 » Fri Dec 04, 2015 12:49 pm

0 Replies

1476 Views

Last post by wuting0926
Fri Dec 04, 2015 12:49 pm
Use grided AVISO SLA data as observation data

Last post by lmp4 « Thu Nov 26, 2015 3:29 pm
Replies: 2
by Arvin_Yin » Thu Aug 20, 2015 9:31 am

2 Replies

1926 Views

Last post by lmp4
Thu Nov 26, 2015 3:29 pm
error about'couldnt find input file'

Last post by kate « Sun Nov 01, 2015 5:15 pm
Replies: 10
by WY0116 » Thu Oct 22, 2015 8:50 am

10 Replies

3693 Views

Last post by kate
Sun Nov 01, 2015 5:15 pm
Extreme large values at the end of OPT_Perturbation

Last post by leon « Mon Jul 27, 2015 6:47 pm

by leon » Mon Jul 27, 2015 6:47 pm

0 Replies

1406 Views

Last post by leon
Mon Jul 27, 2015 6:47 pm
why the ajoint model need climatology input

Last post by simion1232006 « Tue Jun 30, 2015 8:14 am

by simion1232006 » Tue Jun 30, 2015 8:14 am

0 Replies

1549 Views

Last post by simion1232006
Tue Jun 30, 2015 8:14 am
Is the Lanczos vector file necessary for adjoint to initials

Last post by leon « Fri Mar 27, 2015 2:19 am

by leon » Fri Mar 27, 2015 2:19 am

0 Replies

1793 Views

Last post by leon
Fri Mar 27, 2015 2:19 am
A quick question about adjoint sensitivity analysis

Last post by leon « Wed Mar 18, 2015 9:22 pm

by leon » Wed Mar 18, 2015 9:22 pm

0 Replies

1711 Views

Last post by leon
Wed Mar 18, 2015 9:22 pm
How to run ROMS adjoint model ? A few questions.

Last post by Kun « Thu Nov 20, 2014 2:28 pm

by Kun » Thu Nov 20, 2014 2:28 pm

0 Replies

1992 Views

Last post by Kun
Thu Nov 20, 2014 2:28 pm
how to write different type of data into one obs file

Last post by jivica « Thu Oct 23, 2014 6:30 am
Replies: 1
by wangzc » Thu Oct 23, 2014 1:54 am

1 Replies

1691 Views

Last post by jivica
Thu Oct 23, 2014 6:30 am

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