Search found 87 matches

by tony1230
Wed Jan 21, 2015 1:34 pm
Forum: ROMS Bugs
Topic: bug report in BIO_fennel module
Replies: 3
Views: 1822

bug report in BIO_fennel module

I am running into a problem these days with LBCs in biological module. Without LBCs (dont use RadNud & Cla conditions) the case can run and the results seem okay. But when i switch the LBC to RadNud or Cla , something strange occurs. I have been strugling on this some days, but no solution. For conv...
by tony1230
Wed Aug 27, 2014 3:36 am
Forum: ROMS Bugs
Topic: Selection with regard to ECMWF ERA datasets
Replies: 4
Views: 3837

Selection with regard to ECMWF ERA datasets

Hi ROMS friends I have been using forcing conditions from ECMWF ERA dataset. I am using the matlab script that Hernan and John provide (i.e. d_ecmwf2roms.m) all the time, but with the STEP selection with "3 6 9 12" and without "0" step. And recently, i found that there are differences between the ST...
by tony1230
Sat Jul 19, 2014 2:35 pm
Forum: ROMS Discussion
Topic: mixed layer problem
Replies: 1
Views: 759

mixed layer problem

Hi ROMS's friend I am running a real case with biological processes and want to know if the surface/bottom mix layer depth is variable due to seasonal cycles in air-temp ans short wave radiation, etc. The model spin-up from the steady state at Aug 1,2008. In my area of interest, surface waters begin...
by tony1230
Sat May 17, 2014 1:08 pm
Forum: ROMS Discussion
Topic: abnormal salinity with river point source
Replies: 3
Views: 1601

abnormal salinity with river point source

Hi ROMS friends These days i have been running a real case with river point source, including T,S and Nutrients. I'd like to test firstly if the river location are right to inflow. My test was: 1. with tides in the open boundary; 2. with rivers; 3. no more other forcing; 4. constant values for T(25)...
by tony1230
Tue Mar 04, 2014 9:56 am
Forum: ROMS Discussion
Topic: ECMWF ERA Interim Products related doubts
Replies: 8
Views: 4179

Re: ECMWF ERA Interim Products related doubts

Hi John, thanks Here are some further questions. 1.> As for the scale flag for swrad, yes that should be negative to process the accumulation, but swrad must be positive for ROMS. Follow that, the scale flag for swrad should be 1.0 /(3*3600.0). And when it comes here if (F(n).scale < 0) step = rem(f...
by tony1230
Mon Mar 03, 2014 7:01 am
Forum: ROMS Discussion
Topic: ECMWF ERA Interim Products related doubts
Replies: 8
Views: 4179

Re: ECMWF ERA Interim Products related doubts

Thank you John for your reply. First, sorry for my misunderstood. if (F(n).scale < 0) step = rem(frc_t,0.5)*24; if step == 3 fieldfinal = field; ... field_previous = field; % Save this accumulation % to on the next step When step = 3, the field_previous equal to field (field at step = 3), so on the ...
by tony1230
Sat Mar 01, 2014 9:24 am
Forum: ROMS Discussion
Topic: ECMWF ERA Interim Products related doubts
Replies: 8
Views: 4179

ECMWF ERA Interim Products related doubts

I have looked through almost all the posts on the topic related to ECMWF products . I got some, but still confused on how to select the TIME and STEP . 35. What are the 'steps' for the surface daily fields in ERA-Interim? The ERA-Interim data server surface archive has a mixture of analysis fields, ...
by tony1230
Thu Feb 27, 2014 4:55 am
Forum: ROMS Tools and Techniques
Topic: seagrid2roms
Replies: 2
Views: 1650

Re: seagrid2roms

A netcdf toolbox is expected in the Matlab when process the *.nc files. You can download the box from website, but i have no idea where it located. Hope that help.
by tony1230
Sat Oct 26, 2013 2:24 pm
Forum: ROMS Discussion
Topic: Negative value in initial netcdf file
Replies: 1
Views: 1121

Negative value in initial netcdf file

Hi, 1. Can the ROMS now tolerant negative values? Primary for temperature in cold winter in initial condition. 2. Why the ROMS always produces negative values to biology variables like NH4,NO3, etc.(under some kind of conditions, also to salinity, say if i add river point sources)? Thank you and wel...
by tony1230
Sat Oct 19, 2013 6:42 am
Forum: ROMS Problems
Topic: How the roms interpolate the forcing/boundary time?
Replies: 3
Views: 2257

Re: How the roms interpolate the forcing/boundary time?

If i have only the monthly discharge in hand, can the river_time unit in month?

- steve
by tony1230
Wed Sep 25, 2013 2:34 pm
Forum: ROMS Problems
Topic: what's wrong with temperature from two version of roms code
Replies: 7
Views: 3031

Re: what's wrong with temperature from two version of roms c

you may want to check the "Qair" in External/varinfo.dat, to confirm the value is 0.01 or 1.0.
by tony1230
Sat Sep 14, 2013 3:00 am
Forum: ROMS Problems
Topic: ROMS not running on 1024 cores for 17532 iterations
Replies: 12
Views: 4184

Re: ROMS not running on 1024 cores for 17532 iterations

... 0 00:00:00 0.000000E+00 1.963001E+04 1.963001E+04 1.659940E+17 DEF_HIS - creating history file: ./output/ocean_his_0001.nc rank 447 in job 1 n104_34487 caused collective abort of all ranks exit status of rank 447: killed by signal 9 rank 528 in job 1 n104_34487 caused collective abort of all ra...
by tony1230
Sun Jul 07, 2013 4:35 am
Forum: ROMS Trivia
Topic: What´s the difference between Modeling and Simulating
Replies: 10
Views: 4886

Re: What´s the difference between Modeling and Simulating

My opinion on "simulating" & "modelling" much agree with ptimko and Hernan but i have own words. As i can understand within my scope of oceanography knowledge, the "Simulating" is an action with which we do the works/jobs repeatedly as our predecessors have already been done and verified by many res...
by tony1230
Wed Mar 13, 2013 8:31 am
Forum: ROMS Discussion
Topic: Bottom drag coefficient (BDC)
Replies: 3
Views: 2593

Re: Bottom drag coefficient (BDC)

Yes, i know roms can read in BDCs at every grid point. Actually, we can do this for ca. two years by adding a variable in varinfo.dat and corresponding files, and give the values for BDC as a variable of grd.NC file. As in my applications, i have calibrated the BDCs for times, but still dissatisfy w...
by tony1230
Tue Mar 12, 2013 12:28 pm
Forum: ROMS Bugs
Topic: missing idTclm(iNO3_)?
Replies: 3
Views: 1421

Re: missing idTclm(iNO3_)?

hi often

I am doing some work by using bio_fennel submodel. You can sent me email via shouweiwei@sina.com or leave yours for me.

thanks

-Shou
by tony1230
Mon Mar 11, 2013 11:33 am
Forum: ROMS Discussion
Topic: Bottom drag coefficient (BDC)
Replies: 3
Views: 2593

Bottom drag coefficient (BDC)

This is a topic on how to give bottom drag coefficient(s). In standard input file *.in, we have RDRG(RDRG2) and Zob used as bottom drag for momentum calculation. And they also important in tide's computing. As for a region, we firstly want to calculate the tides (usually M2/S2/K1/O1/N2/K2/P1/Q1) and...
by tony1230
Fri Mar 08, 2013 1:31 am
Forum: ROMS Problems
Topic: when I define AVERAGES_DETIDE in the .h file, it don't work
Replies: 1
Views: 824

Re: when I define AVERAGES_DETIDE in the .h file, it don't w

I dont know how to figure this out, and i have similar problem when i get AVERAGES defined. I use ROMS version 3.4 and i have no idea if this would happen in latter new versions.

BTW: I wanna ask what are the detide fields.
by tony1230
Thu Mar 07, 2013 1:11 am
Forum: ROMS Discussion
Topic: stiffness number for rx0 and rx1
Replies: 11
Views: 9877

Re: stiffness number for rx0 and rx1

I think this topic is still unsolved. Hope some of you to participate in. Thanks.
by tony1230
Sat Mar 02, 2013 4:10 am
Forum: ROMS Discussion
Topic: stiffness number for rx0 and rx1
Replies: 11
Views: 9877

Re: stiffness number for rx0 and rx1

In some applications I am happy with HPGE ~ 7cm/s, however in some cases I try to get them down to 1cm/s.
Here is a question: how do i know that at what magnitude of velocity introduced by HPGE may satisfactory for a region :?: How to judge? Is there thumb rules?

Regards,
- Shou
by tony1230
Sat Mar 02, 2013 3:23 am
Forum: ROMS Problems
Topic: unable to output time-averaged terms in the avg.nc file
Replies: 5
Views: 1381

Re: unable to output time-averaged terms in the avg.nc file

Hi Kate

I have run into this before, and i do did as you suggested here, but the question is when i turn on the DEBUG the model run smoothly. So, there is nothing message can be follow. It is so tricky. What can i do if this happen again when i need the AVERAGE results.

- Shou
by tony1230
Fri Mar 01, 2013 6:39 am
Forum: ROMS Discussion
Topic: stiffness number for rx0 and rx1
Replies: 11
Views: 9877

Re: stiffness number for rx0 and rx1

Thank you for all the replies. Yes, as Ivica pointed out, these two variables are much important because they not only affect the model stablity, but also related with HPGE which may induce tricky/incredible current velocities. You want to have as real as possible bathy (tides sensitive) so smooth a...
by tony1230
Tue Feb 26, 2013 6:56 am
Forum: ROMS Discussion
Topic: stiffness number for rx0 and rx1
Replies: 11
Views: 9877

stiffness number for rx0 and rx1

After i searched in this forum on "rx0" and "rx1", i can not understand how they affect the roms run. As Kate said https://www.myroms.org/forum/viewtopic.php?f=1&t=2421&hilit=rx1#p9011 , the rx1 is bigger than 14 , but want the rx0 approaching 0.4 . And Mark may want rx0 to ~ 0.2 https://www.myroms....
by tony1230
Thu Jan 24, 2013 1:47 am
Forum: ROMS Discussion
Topic: How to calculate the residence time
Replies: 5
Views: 4775

How to calculate the residence time

As we all know that the time for water staying in a semi-close sea or a bay would exerts important influence on many,like matter transport etc..I have searched in ROMS forum for this topic,but find none directly available.I have read some related papers in which they employed the approach of using d...
by tony1230
Tue Jan 22, 2013 1:55 am
Forum: ROMS Installation
Topic: How to employ the ice submodule
Replies: 1
Views: 1888

How to employ the ice submodule

I want to add the ice variable into my application, how to do ? In my real case, i should run years of time to simulate biogeochemistry processes, but during winter time there covers ice on half of the sea ares. I never reach to the ice model and do not know how to use it. I hope someone expertice c...
by tony1230
Fri Dec 28, 2012 3:30 am
Forum: ROMS Discussion
Topic: How can I decide the most appropriate parameter
Replies: 7
Views: 1702

Re: How can I decide the most appropriate parameter

Two possible suggestions. 1> you may want to double-check your input files like initial,forcing,etc. to refirm that no NaN exists. 2> turn Debug on as expect to get more directory info. generally speaking, if model blows up right at spin-up, especially with NaN, you may got it in one/some fields. Re...
by tony1230
Fri Dec 28, 2012 3:11 am
Forum: ROMS Problems
Topic: Why the gradient of temperature/salt is too large
Replies: 11
Views: 3909

Re: Why the gradient of temperature/salt is too large

Have you got 2D velocities, i.e. ubar and vbar, for you open boundaries? If yes, you used right option with Flather, otherwise you may want to employ Reduced which is more appropriate for the situation without currents.

Regards

- Shou
by tony1230
Sat Dec 08, 2012 2:37 pm
Forum: ROMS Bugs
Topic: a possible bug in fennel biological model
Replies: 3
Views: 2161

a possible bug in fennel biological model

I cannot confirm absolutely that this is a bug report, but i find something... According to Katja's paper/2006, the grazing term on Phytoplankton by Zoop is defined as g*Zoo (page 3), where g is the grazing rate of Phyt. And g is represented by Holling-type s-shaped curve as(refer to P.4) g = gmax*P...
by tony1230
Sat Dec 08, 2012 2:49 am
Forum: ROMS Discussion
Topic: River locations when there is wetting/drying
Replies: 4
Views: 1999

Re: River locations when there is wetting/drying

I'v had the same problem long time ago. I have a extensive shoal as lanerolle said that can be wetting/drying along with tidal flood/ebb. As commonly think the point source/river would be connected to the sea with a permanent water line/flow even when reaching a low tide. But in roms we alway get th...
by tony1230
Tue Dec 04, 2012 2:07 pm
Forum: ROMS Discussion
Topic: questions for coupled roms-fennel model
Replies: 4
Views: 2362

Re: questions for coupled roms-fennel model

Wow...,big bang. Thank you Larry for your time and carefulness. 1. What are the depths or thicknesses of your 10 vertical levels? If they are e.g. 1 meter each, then even your deepest level will have too much sunlight for net nitrification to occur. So one solution might be to make your levels thick...
by tony1230
Sat Dec 01, 2012 1:46 pm
Forum: ROMS Usage
Topic: ROMS suitable for bottle-necked strongly stratified estuary?
Replies: 3
Views: 1604

Re: ROMS suitable for bottle-necked strongly stratified estu

I am now running a biogeochemical case on a well-calibrated-validated hydrodynamic model, but still not run successfully. Stratification seems to me is an important stress that exerts a critical control on biogeochemical processes, say it blocks bottom-layer nutrients be carried upward by vertical t...
by tony1230
Sat Dec 01, 2012 7:02 am
Forum: ROMS Discussion
Topic: questions for coupled roms-fennel model
Replies: 4
Views: 2362

Re: questions for coupled roms-fennel model

Thank you Prof. Fennel Before start out on my way to run the realcase physical-biological coupled model, i have successfully run the bio_toy test case. I looded into the results and also the input forcing files, to comprehend the relationships btw variables that on different trophic levels and relat...
by tony1230
Fri Nov 30, 2012 10:41 am
Forum: ROMS Installation
Topic: After installation of NetCDF3
Replies: 13
Views: 4071

Re: After installation of NetCDF3

You can open at any (sub)directory with command vi/emacs ~/.bashrc
by tony1230
Mon Nov 26, 2012 1:46 am
Forum: ROMS Usage
Topic: River discharge issues
Replies: 10
Views: 5795

Re: River discharge issues

Apparently,model told that you have placed the rivers at points that not should be them. Refer to viewtopic.php?f=14&t=2200&hilit=river. Hope to make your work done.

- Shou
by tony1230
Sat Nov 24, 2012 10:24 am
Forum: ROMS Discussion
Topic: questions for coupled roms-fennel model
Replies: 4
Views: 2362

questions for coupled roms-fennel model

I am now using coupled ROMS-BIO_FENNEL to do some ideal tests. I ran into a problem with vertical diffusion. I started from a simple cubic domain with horizontal dimension 32x64 and vertical 10 layers, with constant temp(10) and salt(28), no tide , nor flow. Bio_variables are also initialize with a ...
by tony1230
Tue Nov 20, 2012 2:10 pm
Forum: ROMS Information
Topic: units of specific humidity
Replies: 10
Views: 5119

Re: units of specific humidity

Thanks for all your reply Yes, John, you are right. I have mentioned in my first post I have simply got the SH from NECP file in unit kg/kg and have seen values both LT and GT 2.0(g/kg). , but i neglected to take RH(values in percentage) into account. The RH in % could never less that 2(2%). In this...
by tony1230
Sun Nov 18, 2012 2:20 am
Forum: ROMS Information
Topic: units of specific humidity
Replies: 10
Views: 5119

Re: units of specific humidity

Yes,i think you are right that roms needs SH for calculate the other term, but roms wants RH from input in uint % (am i right?). And i dont follow why you did that for multiply the sh from NECP by 1000 to transform into g/kg unit. That dose not make any sense. I think so as follows. 1、As i can learn...
by tony1230
Sat Nov 17, 2012 3:51 am
Forum: ROMS Bugs
Topic: relationship btw gird size and some coefficients
Replies: 1
Views: 1560

relationship btw gird size and some coefficients

hi roms friends Recently i have been thinking about what i mentioned in the subject. It's Kate's post in a earlier thread https://www.myroms.org/forum/viewtopic.php?f=31&t=2673&hilit=rho0#p9996 that reminded me this. I have never taken this into practice, but after saw that, i want to know the relat...
by tony1230
Fri Nov 16, 2012 10:36 am
Forum: ROMS Information
Topic: units of specific humidity
Replies: 10
Views: 5119

Re: units of specific humidity

Okay, on this topic, Kate have mentioned in a earlier thread in 2008 https://www.myroms.org/forum/viewtopic.php?f=4&t=1032&hilit=RH , but it's remain unresolved. :?: :cry: I have been looking into this (bluk_flux.F) the couple days and still confused with the terms, say RH,Qair,Hair,Q and their unit...
by tony1230
Fri Nov 09, 2012 2:03 pm
Forum: ROMS Documentation
Topic: question on Vstretching
Replies: 0
Views: 1778

question on Vstretching

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 re...
by tony1230
Thu Oct 11, 2012 7:12 am
Forum: ROMS Usage
Topic: Imposing sea level time series at boundaries
Replies: 10
Views: 3258

Re: Imposing sea level time series at boundaries

Hi kate,
We use Chapman/Flather for all frequencies of boundary conditions. This requires both the outside zeta and the ubar/vbar through the boundary.
Then, what would be the suggestion if we have only zeta but without ubar/vbar?


-shou
by tony1230
Wed Oct 10, 2012 2:45 am
Forum: ROMS Installation
Topic: roms installation
Replies: 4
Views: 2372

Re: roms installation

Is there any odd symbol in your path?
by tony1230
Thu Sep 20, 2012 12:53 am
Forum: ROMS Bugs
Topic: negative temperature
Replies: 14
Views: 4126

Re: negative temperature

Hi Zhiqiang,

Thank you so much.

Happy mid-autumn.

Diaoyu islands are belong to China!!!

-shou
by tony1230
Mon Sep 17, 2012 7:49 am
Forum: ROMS Bugs
Topic: negative temperature
Replies: 14
Views: 4126

Re: negative temperature

Hi Zhiqiang,

You can tell explicitly what you think that may cause those kind of problems, or give some clear directions/guidance.

I would also like to know more about that.

Regards.

-shou
by tony1230
Thu Sep 13, 2012 2:33 am
Forum: ROMS Problems
Topic: Lateral boundary condition BC - Flather FlaNud?
Replies: 4
Views: 2842

Re: Lateral boundary condition BC - Flather FlaNud?

Hi l_fr

I have post in thread viewtopic.php?f=14&t=2454

John gave a detailed illumination on this. It may help you.

-shou
by tony1230
Thu Sep 13, 2012 2:26 am
Forum: ROMS Bugs
Topic: negative temperature
Replies: 14
Views: 4126

Re: negative temperature

Thank you mashinde, for your reply. Is that mean that the "Surface thermal radiation" is the Net radiation from surface atmosphere into the water and the later one stands for just the short wave radiation downwards and without net longwave? If that is the case, how it cause such a negative temperatu...
by tony1230
Thu Sep 06, 2012 2:28 am
Forum: ROMS Bugs
Topic: negative temperature
Replies: 14
Views: 4126

Re: negative temperature

hi mashinde

I'd like to hear what is the problem with the input radiation flux and why you did that.

thank you

-shou
by tony1230
Thu Aug 09, 2012 8:11 am
Forum: ROMS Problems
Topic: what's wrong with temperature from two version of roms code
Replies: 7
Views: 3031

Re: what's wrong with temperature from two version of roms c

Yes, i remember that Hernan said many times in some threads that we have to set LBC for every state variable on every boundary in ocean.in. In my New code, i have these as follow, ! W S E N ! e o a o ! s u s r ! t t t t ! h h ! ! 1 2 3 4 LBC(isFsur) == Clo Clo Cha Clo ! free-surface LBC(isUbar) == C...
by tony1230
Wed Aug 08, 2012 7:54 am
Forum: ROMS Problems
Topic: what's wrong with temperature from two version of roms code
Replies: 7
Views: 3031

Re: what's wrong with temperature from two version of roms c

Hi rduran Thanks for your suggestion. As i mentioned in the earlier thread, i'd gave one set of input files to the two runs but the CPP .h file, since there had updated more times for many CPP options, say *_WALL etc. As far as i can remember(i can open the files because the cluster was powered off)...
by tony1230
Mon Aug 06, 2012 9:13 am
Forum: ROMS Problems
Topic: what's wrong with temperature from two version of roms code
Replies: 7
Views: 3031

what's wrong with temperature from two version of roms code

Hi all, I was confused by the results from two version (Old:V.549, New:V624) of roms code, running with all the same input files. The attached are three plots that with model results comparison and data validation. As i dont know what's wrong with the new code, i set two parallel runs with one set o...
by tony1230
Sat Jun 23, 2012 2:15 pm
Forum: ROMS Discussion
Topic: Delft3D grid to roms
Replies: 9
Views: 3569

Re: Delft3D grid to roms

Firstly, you would like to delete the Land-points and make your masking subsequently(to produce a variable,mask_rho or what you like,contains the value 1 for wet and 0 for land); Secondly, you could use you undeleted grid file to generate the NetCDF grd file. But here, you should have your mask vari...
by tony1230
Thu Jun 21, 2012 3:18 am
Forum: ROMS Ecosystem
Topic: BIO_SEDIMENT time delay of remineralisation
Replies: 12
Views: 7463

Re: BIO_SEDIMENT time delay of remineralisation

Yes Tomasz, before try to modeling biological we much simulate the temp well since it is a critical factor that influence the biological process. The 4 plots in the previous post were from two different version of ROMS run, explicit say, the upper most two plots(the temp and salt plot and the veloci...
by tony1230
Wed Jun 20, 2012 4:53 am
Forum: ROMS Ecosystem
Topic: BIO_SEDIMENT time delay of remineralisation
Replies: 12
Views: 7463

Re: BIO_SEDIMENT time delay of remineralisation

Thank you Tomasz and Prof. Wilkin Yes, it is odd that ROMS yielded the negative temp as reach to about -7C after few days of the run. I have took notice of that but i dont know why and how to figure it out. Some suggestion? I have check the initrial input file and no value smaller that zero exist an...
by tony1230
Mon Jun 18, 2012 3:30 am
Forum: ROMS Ecosystem
Topic: BIO_SEDIMENT time delay of remineralisation
Replies: 12
Views: 7463

Re: BIO_SEDIMENT time delay of remineralisation

Thank you Prof. Fennel Yes exactlly, we added the PO4 in the BIO-model. And i have run cases as you suggested that run without the PO4,but why i still got the similar results.Here attached two results with(you say the PO4 eventually vanished,but in this case,there still PO4 be left and why other sta...
by tony1230
Sat Jun 16, 2012 12:38 pm
Forum: ROMS Ecosystem
Topic: BIO_SEDIMENT time delay of remineralisation
Replies: 12
Views: 7463

Re: BIO_SEDIMENT time delay of remineralisation

Hi,guys. Dose the Fennel BIO-module work? I am recently run a bio-physical coupled model in a semi-closed shelf sea to simulate some species of nutrient and primary production. The model spin up on Jan 1 and end-up on Dec 30,namely a whole year. As i know,i should have to get a rational results,e.g....
by tony1230
Mon Jun 04, 2012 2:48 am
Forum: ROMS Discussion
Topic: A simple question about default obc in old version roms
Replies: 9
Views: 3703

Re: A simple question about default obc in old version roms

Thank you so much John That is exactly what i want and extremely useful to me(and others).In my previous post,i really confused by these so much kind of OBCs and even their awesome combinations.I am sure we have to specify all the state variables a designated type of condition at each of the boundar...
by tony1230
Sun Jun 03, 2012 2:01 am
Forum: ROMS Discussion
Topic: A simple question about default obc in old version roms
Replies: 9
Views: 3703

Re: A simple question about default obc in old version roms

Hi kate, thank you for yr reply. I have been running a two-boundary domain nested in a bigger domain with only eastern OBC posed there. I configured them as follows. To the big domain,i just have elevation(using 8 tidal constituents)imposed on OBC without any currents(say 2D or 3D). Note that when i...
by tony1230
Sat Jun 02, 2012 2:27 pm
Forum: ROMS Discussion
Topic: A simple question about default obc in old version roms
Replies: 9
Views: 3703

Re: A simple question about default obc in old version roms

Hi prof. Arango On mention the OBCs, i was always confused by their combination of so many state variables. On Wikipage , we can find 6 types of OBCs Gradient,Clamped,Flather,Chapman,Radiation and Wall .But in the ocean.in file,there also exists Nested,Nudging,periodic and Reduced Physics types of O...
by tony1230
Wed Apr 04, 2012 3:54 am
Forum: ROMS Problems
Topic: SOURCE POINT FOR RIVER RUNOFF (topic locked)
Replies: 115
Views: 23784

Re: SOURCE POINT FOR RIVER RUNOFF

hi, First, to Kate's post. Its latitude ranges from N40-43, with a skip of 3 degs. If this, with a resolution of 0.5 deg, it should have 6 cells along the N-S boundary, thus makes 6 point sources. Also, along the W-E direction. Second, to Mathieu's post. I think you are right and its a accurate comm...
by tony1230
Fri Mar 16, 2012 1:34 am
Forum: ROMS Installation
Topic: roms compiling problem with ifort
Replies: 8
Views: 3227

Re: roms compiling problem with ifort

hi jihene,

can you compile all the Roms versions older than 607 with the same ifort compiler ?

steve
by tony1230
Tue Mar 13, 2012 12:52 am
Forum: ROMS Problems
Topic: Unable to open existing NetCDF file : ocean_frc.nc
Replies: 7
Views: 2550

Re: Unable to open existing NetCDF file : ocean_frc.nc

Minimum X-grid spacing, DXmin = 1.20130955-310 km Maximum X-grid spacing, DXmax = 1.20130955-310 km Minimum Y-grid spacing, DYmin = 0.00000000E+00 km Maximum Y-grid spacing, DYmax = 0.00000000E+00 km Minimum Z-grid spacing, DZmin = 5.78056806-322 m Maximum Z-grid spacing, DZmax = 5.82997462-322 m I...
by tony1230
Sat Dec 31, 2011 4:44 am
Forum: ROMS Discussion
Topic: blows up
Replies: 2
Views: 859

Re: blows up

There must be NaN value in you netcdf input files. eg temp or salt initial values that you interp by the grided Rho points.
Check them and also the bottom drag coefficient.I think one of them cause the blowup!


w.shou
by tony1230
Tue Dec 20, 2011 11:08 am
Forum: ROMS Discussion
Topic: How can make sure proper river point position in ROMS
Replies: 15
Views: 7213

Re: How can make sure proper river point position in ROMS

Hi mathieu I can run the .m script and the location-pic shown me where the river-sources are. But, something i still can not understand. 1. What's the two type of hint-points mean created by plot(LonDot,LatDot,'ro'); % arrow "tail" plot(LonStar,LatStar,'*'); % arrow "head" i see, if my point loc is ...
by tony1230
Tue Dec 20, 2011 8:35 am
Forum: ROMS Discussion
Topic: How can make sure proper river point position in ROMS
Replies: 15
Views: 7213

Re: How can make sure proper river point position in ROMS

ok i know :P :P . it's the geometric mean . Under my MATLAB version, the function is
geomean
!
by tony1230
Tue Dec 20, 2011 8:10 am
Forum: ROMS Discussion
Topic: How can make sure proper river point position in ROMS
Replies: 15
Views: 7213

Re: How can make sure proper river point position in ROMS

Hi mathieu
Thank you for your .m script. But one question : what's the function for gmean

Code: Select all

lat=gmean(LAT_rho(:));
on the line 218 .
when i try to run the script , it collapsed.

tks anybody who reply me.
by tony1230
Tue Nov 29, 2011 5:34 am
Forum: ROMS Discussion
Topic: The Segmentation fault of ROMS 3.6
Replies: 15
Views: 3130

Re: The Segmentation fault of ROMS 3.6

Thank you arango Yes, it's my carelessness result in the problem forementioned, the second one, but i still have the first problem. And these days, i was runing a real-application on Biological with Fennel CPP options on. It brings me blowup: without BIO_FENNEL on, model can goes on smoothly, but if...
by tony1230
Wed Oct 26, 2011 7:30 am
Forum: ROMS Usage
Topic: Source type on active or passive tracers
Replies: 7
Views: 2438

Re: Source type on active or passive tracers

Hi kate Thanks very much.I want to use non-point source for Nitrate, Phosphate, etc. But till now, im not sure whether equivalent to non-point model if i use much individual points. That is to say, what's different between the two concepts "non-point source" and "source by putting much single points...
by tony1230
Wed Oct 26, 2011 5:41 am
Forum: ROMS Discussion
Topic: The Segmentation fault of ROMS 3.6
Replies: 15
Views: 3130

Re: The Segmentation fault of ROMS 3.6

Two ploblems: 1) if i use a packege of bland-new code of ROMS 3.6, the upwelling case can goes to end with USE_DEBUG ?= on(oecanG) , but can not going on with that option off(oceanM). Show me the following awful notice: STEP Day HH:MM:SS KINETIC_ENRG POTEN_ENRG TOTAL_ENRG NET_VOLUME C => (i,j,k) Cu ...
by tony1230
Tue Oct 25, 2011 2:48 pm
Forum: ROMS Discussion
Topic: The Segmentation fault of ROMS 3.6
Replies: 15
Views: 3130

Re: The Segmentation fault of ROMS 3.6

Its a tricky thing. I can run my applications smoothly, but UPWELLING test case.Everything is left as they are, just use the upwelling.h instead of my file , then it can not work.So i dont think something worng in file Compilers/Linux-ifort.mk.Also i got something tricky analytical.f90(394): error #...
by tony1230
Tue Oct 25, 2011 2:39 am
Forum: ROMS Usage
Topic: Source type on active or passive tracers
Replies: 7
Views: 2438

Re: Source type on active or passive tracers

Thanks kate for your reply I konw, for common use, i can specify some more individual points connected together instead of the role as plane-source. That can be done, but actually the non-point source is not the gathering of individuals so simple.Between every two single point, there must exists som...
by tony1230
Mon Oct 24, 2011 2:54 am
Forum: ROMS Problems
Topic: ncdump problem
Replies: 3
Views: 1382

Re: ncdump problem

Did you have the NetCDF Lib included in the Matlab working path?
by tony1230
Sun Oct 23, 2011 2:32 pm
Forum: ROMS Usage
Topic: Source type on active or passive tracers
Replies: 7
Views: 2438

Re: Source type on active or passive tracers

I have found for papers on web of sciencescience direct and etc,accounts for non-point sources.
But hardly did i find some papers.For simplicity, i can specify number of cells of grid that gathering together
as so-called non-point, indeed it's not.
by tony1230
Mon Oct 10, 2011 9:24 am
Forum: ROMS Usage
Topic: Momentum source
Replies: 4
Views: 1663

Re: Momentum source

Hi kate Its a feasible way that you said,but in my mind it suitable in the situation with incoming flow on one side and outgoing flow on the other side.Like the ECS Black-Tide or the Gulf-Stream.I dont know how to keep the net volume of a modeling domain and at the same time apply the incoming and o...
by tony1230
Sun Oct 09, 2011 2:14 pm
Forum: ROMS Usage
Topic: Source type on active or passive tracers
Replies: 7
Views: 2438

Source type on active or passive tracers

Hi Roms users as we know,we can specify a mesh grid with active or passive point-sources at the river where the sources can be carried into our simulating system.we can do this without effort.And recently,i was attempting to setup an application with plane- or area-sources at intertidal area,in orde...
by tony1230
Sun Oct 09, 2011 8:44 am
Forum: ROMS Source
Topic: Thoughts on ROMS design as it pertains to coupling
Replies: 1
Views: 3934

Re: Thoughts on ROMS design as it pertains to coupling

Hi dschaffer
Can the coupled WRF/ROMS model work now?
Im usually have the WRF run first and then ROMS.
Im really want a trying on.
by tony1230
Sun Oct 09, 2011 7:54 am
Forum: ROMS Problems
Topic: make_grid error
Replies: 2
Views: 1416

Re: make_grid error

hi phamsymt
you mean in your orthogonal-curvilinear mesh, the resolutions are
Min dx=16.34 km - Max dx=18.5221 km
Min dy=16.3735 km - Max dy=18.5221 km
in x and y direction respectively.

What is the "ROMS resolution:17.9km" ?
It seems no data in the vector "x" , so is the "xx".check them first.
by tony1230
Fri Oct 07, 2011 3:17 am
Forum: ROMS Usage
Topic: periodic boundary condition
Replies: 16
Views: 4381

Re: periodic boundary condition

Hi simion Thank you very much.Now basically i can follow what you said.But:?::why you have to do So basically only the velocity fields are periodic, and both the tracer fields and sea surface elevations are not periodic. I have no idea and can not imagine on the situation(velocity fields periodic, t...
by tony1230
Thu Oct 06, 2011 6:49 am
Forum: ROMS Usage
Topic: periodic boundary condition
Replies: 16
Views: 4381

Re: periodic boundary condition

hi prof A and friends
I have some questions:
1> what is the
periodic boundary conditions
exactly mean
and 2> the meaning for
negative pressure gradient
.
I can not understand very well.


thanks for reply
by tony1230
Tue May 10, 2011 1:19 pm
Forum: ROMS Bugs
Topic: error while writing variable: ocean_time into his.nc
Replies: 3
Views: 3196

Re: error while writing variable: ocean_time into his.nc

hi
do you wanna run a new simulation from the previous one? and start from 00:00:00 on the 16th day?
i think so from your "15*24*3600=1296000".if so ,you must set the ocean_time from zero.
by tony1230
Fri Jan 14, 2011 5:17 am
Forum: ROMS Usage
Topic: Problems with basic model
Replies: 9
Views: 3849

Re: Problems with basic model

hi guys
as to the frist problem, you should check your initial netcdf file,
to see if some 'NaN' in temp, salt, depth or bottom drag cofficient values.
I'v get the similar prob times, every time i see the 'NaN', there muse be
odd values.

tony
by tony1230
Wed Nov 10, 2010 10:21 am
Forum: ROMS Discussion
Topic: about river forcing......
Replies: 2
Views: 928

Re: about river forcing......

hi mashinde
there is a *.m matlab script used to creat the river runoff netcdf file.
the only you must have in your hand is time-series runoff data.

best regards


tony
by tony1230
Wed Nov 10, 2010 8:07 am
Forum: ROMS Usage
Topic: Atmosphere forcing & coordinate convertion
Replies: 13
Views: 5866

Re: Atmosphere forcing & coordinate convertion

hi kate
It's the first time i have seen 'modulo'. i have absolutely no
idea about the 'lon:modulo = 360'.would you explain to me what's
the equation mean or how to operate it!
Best regards!

tony
by tony1230
Sat Aug 14, 2010 3:42 am
Forum: ROMS Bugs
Topic: NS_PERIODIC boundary conditions
Replies: 22
Views: 11732

Re: NS_PERIODIC boundary conditions

hi buddies its a nice topic.i have questions with regard to arango‘s comments. 1.you said that if we have a squared grid the Fortran and Matlab would transposed arrays (X,Y) into (Y,X) .the point i want to know is that the event you mentioned going to happen in any rate or by chance? 2. This can giv...
by tony1230
Mon Jul 19, 2010 1:37 pm
Forum: ROMS Sediment
Topic: About the hc ,Tcline and hmin
Replies: 5
Views: 4539

Re: About the hc ,Tcline and hmin

And can the 'hc' be set to a negative value?
hc can be any positive value , but negative ones!
by tony1230
Wed Jun 16, 2010 8:41 am
Forum: ROMS Discussion
Topic: looks like some problems at the coastline corners
Replies: 4
Views: 1186

Re: looks like some problems at the coastline corners

hi kate, why would you say"If positive u is to the east, then you have strong downwelling flow in a very narrow band." i wanna know how you identified the "downwelling flow"! thank you !
by tony1230
Wed May 05, 2010 5:54 am
Forum: ROMS Problems
Topic: Problem with seagrid2roms.m
Replies: 2
Views: 1322

Re: Problem with seagrid2roms.m

just to use "isfinite" instead of "finite", i think. have a try...
by tony1230
Sat May 01, 2010 9:31 am
Forum: ROMS Results
Topic: problem with perfect restart
Replies: 13
Views: 6514

Re: problem with perfect restart

hi susonic and kate i got a same return from the run.yes,without the PERFECT_RESTART option, run can go on wheels, but with it turn on, run blowup within some steps. till now, even no one idea rocks me.seeing susonic reported it to all,i deem it's not a problem to me only. [quote="susonic"]Hi all, T...
by tony1230
Wed Apr 21, 2010 9:29 am
Forum: ROMS Information
Topic: Extracting Bathymetry and Coastline Data for SeaGrid
Replies: 16
Views: 18321

Re: Extracting Bathymetry and Coastline Data for SeaGrid

which one is good to generate the grid for ROMS, delft3d or seagrid ? i used to use the 3d and , i know that the seagrid also can generate the grid , but i never used that. someone used both of them?