Search found 27 matches
- Sat Oct 21, 2023 2:15 am
- Forum: Ocean News
- Topic: John S. Allen (1937-2023)
- Replies: 5
- Views: 18538
Re: John S. Allen (1937-2023)
Message from OSU: CEOAS and POA will be holding an event in recognition of Professor John Allen next week on Monday, October 23 starting at 3:00 pm (PT). Speakers will include Tuba Özkan-Haller, Doug Caldwell, Ken Brink, and Dudley Chelton. This event will be held in person in Burt 193 and also avai...
- Thu Oct 12, 2023 10:09 am
- Forum: Ocean News
- Topic: John S. Allen (1937-2023)
- Replies: 5
- Views: 18538
Re: John S. Allen (1937-2023)
I am so sorry to hear about this. Thanks for sharing, John, W. We have lost a giant of the community. I didn't get to interact too much with John Allen. But I have read a lot of his papers, which have helped me a lot, particularly, on the topic of coastal-trapped waves. I vividly remember all the gr...
- Mon Jul 31, 2023 7:51 pm
- Forum: Job Opportunities
- Topic: WHOI Technical Staff position for ROMS modeler
- Replies: 0
- Views: 6602
WHOI Technical Staff position for ROMS modeler
Woods Hole Oceanographic Institution is currently searching for a Research Associate with extensive ROMS experience to join the Applied Ocean Physics & Engineering Department. This is a regular, full-time, non-exempt position, and is eligible for full benefits. The initial appointment is for 12 ...
- Mon Mar 20, 2023 12:23 am
- Forum: Ocean News
- Topic: Dale B. Haidvogel (1949-2023)
- Replies: 18
- Views: 47561
Re: Dale B. Haidvogel (1949-2023)
I am saddened by the news. Dale Haidvogel was the person who brought me to the U.S. and into the oceanography community, and let me pursue my own interest. For that, I am forever grateful! I was in Fluid Mechanics when I was working on a master's degree at Zhejiang Univ in China 20 years ago. By acc...
- Tue Feb 21, 2023 9:21 pm
- Forum: Meetings/Workshops
- Topic: Update: GRC - Coastal Ocean Dynamics in June 2023
- Replies: 0
- Views: 5266
Update: GRC - Coastal Ocean Dynamics in June 2023
As chairs and vice chairs of the Gordon Research Research Conference (GRC) on Coastal Ocean Dynamics we would like to invite you to participate in the 2023 Coastal Ocean Dynamics GRC to be held 18-23 June 2023 at Bryant University in Rhode Island. The entire conference program is now available at: h...
- Wed Jan 11, 2023 11:30 am
- Forum: Meetings/Workshops
- Topic: GRC - Coastal Ocean Dynamics in June 2023
- Replies: 0
- Views: 6178
GRC - Coastal Ocean Dynamics in June 2023
Hi, all, The Gordon Research Conference (GRC) - Coastal Ocean Dynamics is coming back after 4 years, and we would like to invite you to attend. It will take place at Bryant University in Rhode Island on June 18-23, 2023: https://www.grc.org/coastal-ocean-dynamics-conference/2023/ There will also be ...
- Sat Jul 09, 2022 1:11 pm
- Forum: ROMS Information
- Topic: LIMIT_VVISC
- Replies: 5
- Views: 9626
Re: LIMIT_VVISC
It is really strange to see Robinson and Dong's claim that the ROMS GLS code has issues for simulating internal tides. I have been using GLS for simulations of internal tides at a shelf edge for years. I have no problem with the code. The modeled viscosity and diffusivity look fine to me, and the re...
- Thu Jun 23, 2022 1:20 pm
- Forum: ROMS Discussion
- Topic: Running ocean models on GPU
- Replies: 1
- Views: 1655
Running ocean models on GPU
Hi, all,
I just came across this new paper about running a Python-based ocean model on GPUs achieving better performance than traditional CPU-based parallel simulations:
https://agupubs.onlinelibrary.wiley.com ... 21MS002717
Any thought on this?
Gordon
I just came across this new paper about running a Python-based ocean model on GPUs achieving better performance than traditional CPU-based parallel simulations:
https://agupubs.onlinelibrary.wiley.com ... 21MS002717
Any thought on this?
Gordon
- Tue Jan 18, 2022 2:05 am
- Forum: Job Opportunities
- Topic: Research Associate position(s) at Woods Hole Oceanographic Institution
- Replies: 0
- Views: 3702
Research Associate position(s) at Woods Hole Oceanographic Institution
Hi, all, We are currently looking for a (and maybe more) Research Associate with a background in ocean modeling to join the Woods Hole Oceanographic Institution. This is a regular, full-time, non-exempt position, and is eligible for full benefits. The initial appointment is for 18 months with the po...
- Thu Oct 14, 2021 3:56 pm
- Forum: ROMS Problems
- Topic: OUTPUT - multi-file counter AVG(ng)%load = 3, is greater than Nfiles = 2 dimension 247058 in structure when c
- Replies: 4
- Views: 5724
Re: OUTPUT - multi-file counter AVG(ng)%load = 3, is greater than Nfiles = 2 dimension 247058 in structure when c
Thanks, Hernan. I am restarting a simulation from a perfect restart file and asking the model to output multiple history and average files. The problem occurs when the model tries to create a new average file during the middle of the simulation. But it has no problem with creating new history files ...
- Thu Oct 14, 2021 2:05 pm
- Forum: ROMS Problems
- Topic: OUTPUT - multi-file counter AVG(ng)%load = 3, is greater than Nfiles = 2 dimension 247058 in structure when c
- Replies: 4
- Views: 5724
Re: OUTPUT - multi-file counter AVG(ng)%load = 3, is greater than Nfiles = 2 dimension 247058 in structure when c
Hi, I am running into the same problem when I restart a simulation and ask the model to generate multiple average files. The problem occurs when it tries to create a new average file. The error message is: OUTPUT - multi-file counter AVG(ng)%load = 2, is greater than Nfiles = 1 dimension in structur...
- Wed Nov 14, 2018 9:56 pm
- Forum: Job Opportunities
- Topic: Postdoctoral Investigator position at WHOI
- Replies: 0
- Views: 2062
Postdoctoral Investigator position at WHOI
Woods Hole Oceanographic Institution is currently searching for a Postdoctoral Investigator to join the Coastal Ocean Fluid Dynamics Laboratory in the Applied Ocean Physics & Engineering Department. This is a temporary, full-time, exempt position, and is eligible for benefits. JOB SUMMARY & ...
- Thu Jan 22, 2015 6:23 pm
- Forum: ROMS Bugs
- Topic: a bug in mod_mixing
- Replies: 0
- Views: 2667
a bug in mod_mixing
Line 1148 in mod_mixing.F, the CPP flag FORWARD_MIXING is misspelled as FOWARD_MIXING.
Gordon
Gordon
- Wed Jan 30, 2013 3:28 am
- Forum: ROMS Discussion
- Topic: How to calculate the residence time
- Replies: 5
- Views: 9952
Re: How to calculate the residence time
Hey, If you want your calculation of the residence time to be mathematically precise and also resolve its temporal and spatial variability, you should definitely look into the Constituent-oriented Age and Residence time Theory (CART; http://www.elic.ucl.ac.be/repomodx/cart/ ). The forward model give...
- Thu Feb 26, 2009 2:28 am
- Forum: ROMS Adjoint
- Topic: which option can I use for vertical mixing in adjoint model?
- Replies: 6
- Views: 7234
Re: which option can I use for vertical mixing in adjoint model?
We don't need FORWARD_BULKFLUX. Yes, the linearization of bulk flux is problematic. The way to get around that is to save the surface tracer and momentum fluxes in the forward nonlinear simulation (remember to save the shortwaver radiation separately). The ROMS adjoint and tangent linear models will...
- Thu Aug 28, 2008 3:44 am
- Forum: ROMS Ecosystem
- Topic: Initialization for Fasham and EcoSim BioToys applications
- Replies: 15
- Views: 18645
Re: Initialization for Fasham and EcoSim BioToys applications
Is Bac_F1 part of the initial condition? If it is, you must have bad data in your initial condition since model encounter that problem while writing the initial record.
- Sun Jun 01, 2008 1:29 am
- Forum: ROMS Source
- Topic: Point sources of passive tracer
- Replies: 3
- Views: 6858
I've never used 2.2. But for the latest version of ROMS we can get using svn, there are more than one place we need to change to add point source for a passive tracer. Some changes in Nonlinear/get_idata.F is required to turn on SOURCES(ng)%Lsrc and SOURCES(ng)%Ltracer for the added passive tracer. ...
- Tue Feb 05, 2008 1:16 am
- Forum: ROMS Source
- Topic: Passive tracers
- Replies: 2
- Views: 8233
You need to add passive tracer concentration variable in your initial condition file. This variable should have the same dimension as temperature (temp) and salinity (salt). The name of the variable should be consistent with that in varinfo.dat (the default one is 'dye_'). If you stick with the defa...
- Thu Jan 31, 2008 3:17 pm
- Forum: ROMS Problems
- Topic: array scalars%sc_w is out of range?
- Replies: 8
- Views: 4688
- Thu Sep 20, 2007 1:29 pm
- Forum: ROMS Bugs
- Topic: svnversion of "make"
- Replies: 6
- Views: 8033
- Wed Sep 19, 2007 3:04 am
- Forum: ROMS Bugs
- Topic: svnversion of "make"
- Replies: 6
- Views: 8033
You need to install svn on the machine you are compiling on. Type 'which svnversion' to see whether you have it installed. Check the 'makefile' file, there is a line like: SVNREV ?= $(shell svnversion -n .) This tells the system which version of the code you are working on, and the version number wi...
- Fri Sep 07, 2007 12:11 pm
- Forum: ROMS Problems
- Topic: ROMS2.3 background running problem under PGI + MPI
- Replies: 4
- Views: 4266
- Fri Sep 07, 2007 2:32 am
- Forum: ROMS Problems
- Topic: ROMS2.3 background running problem under PGI + MPI
- Replies: 4
- Views: 4266
Hey, Zhoufeng, You should really consider to update the code. There has been a lot of changes both in model and in compilers since then. Personally, I don't have any experience with roms2.3, but I wouldn't be surprised by some problem between very old version of roms and new version of compilers. We...
- Tue Jul 17, 2007 9:00 pm
- Forum: ROMS Installation
- Topic: different result obtained with different versions of pgi
- Replies: 5
- Views: 5670
I tried the IEEE arithmetic standard ('-Kieee' option for pgi), the model results with different versions of pgi (pgi6.1, pgi7.0) became identical exactly as Rich said. But the results from different compilers (pgi, ifort and g95) are still different by same amount as before even all of them are for...
- Tue Jul 17, 2007 8:28 pm
- Forum: ROMS Installation
- Topic: different result obtained with different versions of pgi
- Replies: 5
- Views: 5670
hey, Natalie, The pgi6.1 I have gives the right answer as pgi7.0. I also tried pgi6.0 which does give wrong boundary indices as you said. So, the bug has been corrected in my pgi6.1. For the problem I was talking at the beginning of this thread, I was using pgi6.1 and pgi7.0. So, that is not the rea...
- Tue Jul 17, 2007 3:06 am
- Forum: ROMS Installation
- Topic: svn checkout
- Replies: 7
- Views: 8629
- Tue Jul 03, 2007 6:07 pm
- Forum: ROMS Installation
- Topic: different result obtained with different versions of pgi
- Replies: 5
- Views: 5670
different result obtained with different versions of pgi
We recently updated our pgi compiler, and I am comparing the results from models compiled with different versions of pgi, 6.1 and 7.0. I ran the two nonlinear models for 120 time steps forced by exact same atmospheric forcings and initial conditions. For both of them, Flather and Chapman are used fo...