ROMS Adjoint

Moderators: arango, robertson

New Topic

109 topics

Topics

Replies

Views

Last post

An error about filename in I4DVAR

Last post by smartboy « Fri Apr 29, 2022 5:59 am

by smartboy » Fri Apr 29, 2022 5:59 am

0 Replies

131 Views

Last post by smartboy
Fri Apr 29, 2022 5:59 am
Which ROMS source version to use for the 4DVar tutorial

Last post by stef « Thu Feb 17, 2022 2:58 pm
Replies: 3
by stef » Thu Feb 17, 2022 9:59 am

3 Replies

403 Views

Last post by stef
Thu Feb 17, 2022 2:58 pm
I4DVAR - Negative Ritz value found

Last post by smartboy « Thu Jan 20, 2022 6:41 am

by smartboy » Thu Jan 20, 2022 6:41 am

0 Replies

230 Views

Last post by smartboy
Thu Jan 20, 2022 6:41 am
Problems about adding tidal forcing in 4DVar

Last post by hezhiwei « Tue Aug 03, 2021 6:19 am
Replies: 4
by hezhiwei » Thu Jul 29, 2021 9:49 am

4 Replies

1030 Views

Last post by hezhiwei
Tue Aug 03, 2021 6:19 am
INP_PAR, PHYPAR: Problems finding input file.

Last post by wilkin « Fri Jul 30, 2021 11:45 am
Replies: 7
by birgitrr » Tue Jul 27, 2021 1:59 pm

7 Replies

1087 Views

Last post by wilkin
Fri Jul 30, 2021 11:45 am
nonlinear cost function not calculated in PSAS

Last post by Rafael_Santana « Wed Jul 28, 2021 12:28 am
Replies: 2
by Johannes » Tue Feb 28, 2017 2:32 pm

2 Replies

2202 Views

Last post by Rafael_Santana
Wed Jul 28, 2021 12:28 am
AKv and AKt in initial condition file

Last post by rtoste « Tue Jul 13, 2021 5:20 pm
Replies: 2
by rtoste » Fri Jul 09, 2021 9:38 pm

2 Replies

950 Views

Last post by rtoste
Tue Jul 13, 2021 5:20 pm
4DVAR assimilation of surface velocities destroy sst

Last post by jivica « Wed May 26, 2021 2:39 am
Replies: 5
by xavierC » Thu Jan 30, 2020 10:07 am

5 Replies

2080 Views

Last post by jivica
Wed May 26, 2021 2:39 am
observation data rejected!

Last post by Rafael_Santana « Mon May 03, 2021 11:14 pm
Replies: 8
by simion1232006 » Fri Oct 29, 2010 2:18 am

8 Replies

4931 Views

Last post by Rafael_Santana
Mon May 03, 2021 11:14 pm
I4dvar compilation error in new version about get_hash.f90

Last post by MIKESHEN « Sun Apr 11, 2021 1:31 am
Replies: 2
by MIKESHEN » Sat Apr 10, 2021 1:27 pm

2 Replies

676 Views

Last post by MIKESHEN
Sun Apr 11, 2021 1:31 am
i4dvar ex1 blowup at first time step

Last post by briskbamboo « Thu Mar 04, 2021 5:17 am

by briskbamboo » Thu Mar 04, 2021 5:17 am

0 Replies

467 Views

Last post by briskbamboo
Thu Mar 04, 2021 5:17 am
parallel RPCG minimization (Andy & Hernan & Brian)?

Last post by jivica « Wed Jan 13, 2021 4:37 am
Replies: 1
by jivica » Tue Jan 12, 2021 2:54 am

1 Replies

796 Views

Last post by jivica
Wed Jan 13, 2021 4:37 am
tidal constituents

Last post by pooran « Mon Dec 14, 2020 5:13 am

by pooran » Mon Dec 14, 2020 5:13 am

0 Replies

580 Views

Last post by pooran
Mon Dec 14, 2020 5:13 am
tidal constituents

Last post by johnluick « Sat Oct 31, 2020 10:37 am
Replies: 1
by pooran » Fri Oct 30, 2020 12:18 pm

1 Replies

833 Views

Last post by johnluick
Sat Oct 31, 2020 10:37 am
station file

Last post by arango « Tue Oct 13, 2020 5:39 am
Replies: 3
by jivica » Mon Oct 12, 2020 4:59 am

3 Replies

1066 Views

Last post by arango
Tue Oct 13, 2020 5:39 am
How to build the ADM individually?

Last post by LiZhou « Mon Sep 28, 2020 1:06 pm
Replies: 2
by LiZhou » Sun Sep 27, 2020 7:38 am

2 Replies

923 Views

Last post by LiZhou
Mon Sep 28, 2020 1:06 pm
Can roms be used to assimilate suspended sediment ?

Last post by lairuixun « Mon Sep 28, 2020 8:31 am

by lairuixun » Mon Sep 28, 2020 8:31 am

0 Replies

515 Views

Last post by lairuixun
Mon Sep 28, 2020 8:31 am
give maximum weight to data

Last post by jsouza « Sun Sep 27, 2020 6:45 pm
Replies: 1
by xavierC » Fri Sep 25, 2020 12:20 pm

1 Replies

846 Views

Last post by jsouza
Sun Sep 27, 2020 6:45 pm
How to use ECMWF product

Last post by javadi « Tue Sep 15, 2020 2:30 pm
Replies: 4
by javadi » Mon Sep 14, 2020 1:57 pm

4 Replies

1538 Views

Last post by javadi
Tue Sep 15, 2020 2:30 pm
Avg file output for NLM sweep instead of ADJ?

Last post by jivica « Fri Sep 11, 2020 6:15 am

by jivica » Fri Sep 11, 2020 6:15 am

0 Replies

656 Views

Last post by jivica
Fri Sep 11, 2020 6:15 am
I4DVAR hang with "<<<< Conjugate Gradient Algorithm >>>>"

Last post by briskbamboo « Fri Aug 28, 2020 2:19 am

by briskbamboo » Fri Aug 28, 2020 2:19 am

0 Replies

728 Views

Last post by briskbamboo
Fri Aug 28, 2020 2:19 am
RBL4DVAR error after upgrade to SVN Revision 1036

Last post by xavierC « Wed Aug 26, 2020 7:28 am
Replies: 2
by xavierC » Tue Aug 25, 2020 2:54 pm

2 Replies

922 Views

Last post by xavierC
Wed Aug 26, 2020 7:28 am
Adjoint model blow up

Last post by ljxu « Tue Jul 28, 2020 12:09 pm
Replies: 13
by ymamoutos » Fri Apr 17, 2020 8:17 pm

13 Replies

4190 Views

Last post by ljxu
Tue Jul 28, 2020 12:09 pm
Offline Heat Budget calculations from ROMS model output

Last post by fabeobd « Fri Jun 26, 2020 10:19 am
Replies: 13
by aneeshcs » Tue Oct 11, 2011 3:50 am

13 Replies

11418 Views

Last post by fabeobd
Fri Jun 26, 2020 10:19 am
I4dvar compilation error about i4dvar.f90 and mod_fourdvar

Last post by MIKESHEN « Fri May 29, 2020 1:26 pm
Replies: 3
by MIKESHEN » Tue May 26, 2020 1:38 pm

3 Replies

1483 Views

Last post by MIKESHEN
Fri May 29, 2020 1:26 pm
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

1065 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

1009 Views

Last post by robertson
Thu Mar 05, 2020 3:14 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

841 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

857 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

3037 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

1051 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

1074 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

1092 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

997 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

1460 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

2075 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

1220 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

2021 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

1100 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

3057 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

1576 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

1283 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

2965 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

4958 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

1602 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

1446 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

1525 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

1565 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

3082 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

1431 Views

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

New Topic

109 topics

Return to Board Index

Forum permissions

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