Search found 39 matches
- Mon Oct 16, 2023 5:11 pm
- Forum: ROMS Bugs
- Topic: two solutions for sst with the same configuration
- Replies: 6
- Views: 15852
Re: two solutions for sst with the same configuration
I had a similar problem several years ago where we got different solutions depending on how many tiles we used. It turned out to be a bug in the compiler that we were using at the time. The differences went away when we did not use the optimization in the compiler command (the -O3) but then the mode...
- Fri Dec 09, 2022 12:54 pm
- Forum: ROMS Trivia
- Topic: Friend or Foe?
- Replies: 1
- Views: 13842
Friend or Foe?
Just curious: when we look at someone's profile in the ROMS forum, we are given the choice to mark them as "Friend" or "Foe". Are there many ROMS Foes out there? What happens if we mark someone as a foe? For example - here is the profile of my colleague (and friend): https://www....
- Fri Mar 25, 2022 11:17 am
- Forum: Job Opportunities
- Topic: Estuarine and Coastal Numerical Modelling: Associate/Full Professor
- Replies: 0
- Views: 3943
Estuarine and Coastal Numerical Modelling: Associate/Full Professor
The Virginia Institute of Marine Science (VIMS)/William & Mary’s School of Marine Science invites applications for a full-time, tenure-eligible Associate/Full Professor. The position will begin in Summer 2022. Qualifications: The successful candidate holds an earned doctorate (Ph.D.) or an equiv...
- Tue Nov 30, 2021 1:57 pm
- Forum: Job Opportunities
- Topic: Recruiting Graduate Student at VIMS (Virginia Inst. of Marine Science)
- Replies: 0
- Views: 3726
Recruiting Graduate Student at VIMS (Virginia Inst. of Marine Science)
Sediment processes such as erosion, deposition, and suspended transport impact water quality in shallow water systems such as estuaries and continental shelves. Numerical models provide a means of quantifying the impact of sediment transport on issues such as contaminant transport, and nutrient cycl...
- Fri Sep 10, 2021 5:30 pm
- Forum: Job Opportunities
- Topic: Post-doc position available at Virginia Institute of Marine Science
- Replies: 1
- Views: 2404
Re: Post-doc position available at Virginia Institute of Marine Science
Post-doc Position available: Join our group to work on a numerical modeling project that will couple ROMS (Regional Ocean Modeling System) hydrodynamics and sediment transport with WRF-HYDRO. Seeking motivated candidates who have experience with implementations and model development within ROMS or ...
- Thu Aug 19, 2021 4:37 pm
- Forum: Job Opportunities
- Topic: MS or PhD level job: ERDC
- Replies: 0
- Views: 3620
MS or PhD level job: ERDC
Position: Research Civil Engineer or Environmental/Ocean Scientist U.S. Army Corps of Engineers (USACE) Engineer Research and Development Center Environmental Laboratory Water Quality & Contaminant Modeling Branch Vicksburg, MS Job Summary Perform numerical modeling of sediment and contaminant ...
- Mon Aug 09, 2021 4:31 pm
- Forum: Job Opportunities
- Topic: Post-doc position available at Virginia Institute of Marine Science
- Replies: 1
- Views: 2404
Post-doc position available at Virginia Institute of Marine Science
Join our group to work on a numerical modeling project that will couple ROMS (Regional Ocean Modeling System) hydrodynamics and sediment transport with WRF-HYDRO. Seeking motivated candidates who have experience with implementations and model development within ROMS or similar ocean models. The succ...
- Tue Jan 28, 2020 11:38 am
- Forum: ROMS Sediment
- Topic: Compare suspended material and deposition with erosion
- Replies: 1
- Views: 7075
Re: Compare suspended material and deposition with erosion
Are you accounting for porosity of the sediment bed? If you work in volumetric units, you need to account for porosity of the sediment bed. If you keep everything in mass units (kg/m2) then you do not need to account for porosity of the sediment bed. For the sediment bed, you can use the "sandm...
- Fri Nov 15, 2019 4:12 am
- Forum: Meetings/Workshops
- Topic: Webinar: Cohesive Sediment Model
- Replies: 0
- Views: 6328
Webinar: Cohesive Sediment Model
CSDMS Fall 2019 Webinar Series Please join us for the final webinar this Fall! "Cohesive and Mixed Sediment Transport Processes in ROMS" The Regional Ocean Modeling System (ROMS) is an open-source regional ocean model with a large user community. The version distributed as part of the Cou...
- Tue Mar 19, 2019 12:57 pm
- Forum: ROMS Sediment
- Topic: COAWST sediment example results inquiry
- Replies: 1
- Views: 6503
Re: COAWST sediment example results inquiry
Our group is running a modified version of sed_floc_toy also. The main thing you should see with this test case is sediment flocculation and disaggregation in the water column. So the sediment size distributions in the water column should be changing with flocculation processes. This test case is no...
- Fri Jan 04, 2019 7:15 pm
- Forum: Ocean News
- Topic: Student Modeler Award
- Replies: 0
- Views: 7336
Student Modeler Award
Students and very recent graduates should consider applying for the CSDMS Syvitski Student Modeler Award. CSDMS invites graduate students from earth and computer sciences to compete for the annual “CSDMS Student Modeler Award.” The award is in honor of Jai Syvitski, CSDMS's founding executive direct...
- Thu Jul 19, 2018 1:10 pm
- Forum: Job Opportunities
- Topic: Postdoctoral Position in Sediment - Biogeochemical Models
- Replies: 1
- Views: 3119
Re: Postdoctoral Position in Sediment - Biogeochemical Model
William & Mary’s Virginia Institute of Marine Science (VIMS) seeks a postdoctoral investigator to work with Dr. Courtney Harris in the Department of Physical Sciences. Specifically, the Postdoctoral Research Associate will perform numerical modeling studies to explore sediment geochemical contro...
- Sat Jun 23, 2018 2:38 am
- Forum: Job Opportunities
- Topic: Postdoctoral Position in Sediment - Biogeochemical Models
- Replies: 1
- Views: 3119
Postdoctoral Position in Sediment - Biogeochemical Models
William & Mary’s Virginia Institute of Marine Science (VIMS) seeks a postdoctoral investigator to work with Dr. Courtney Harris in the Department of Physical Sciences. The successful candidate will work within the sediment modeling group, which uses numerical models to address interdisciplinary ...
- Mon May 15, 2017 2:20 pm
- Forum: ROMS Discussion
- Topic: Doesn't use river value
- Replies: 4
- Views: 3244
Re: Doesn't use river value
HI- I suggest trying to use a constant (steady) river input first until you get the time-stamps right, and see that the freshwater is really entering the estuary.
- Fri Sep 23, 2016 2:26 pm
- Forum: ROMS Discussion
- Topic: Running ROMS Job with different number of nodes/processors
- Replies: 3
- Views: 3562
Re: Running ROMS Job with different number of nodes/processo
We had a similar problem, and it did lead to months of entertainment as Kate hinted. We found that our problem was actually the compiler, not the source code. We found that whether we got these types of differences depended on the optimization level that we used in compiling; that is we did not get ...
- Wed Mar 23, 2016 9:21 pm
- Forum: Meetings/Workshops
- Topic: ChesMS16: Chesapeake Modeling Conference
- Replies: 0
- Views: 11470
ChesMS16: Chesapeake Modeling Conference
The Chesapeake Community Modeling Program (CCMP; http://ches.communitymodeling.org/ ) is sponsoring "ChesMS16" - the Chesapeake Community Modeling Symposium; to be held June 1 - 2, 2016 in Williamsburg VA. Abstracts can be submitted now for the ChesMS16 meeting (Chesapeake Modeling Symposi...
- Fri Nov 08, 2013 6:14 pm
- Forum: Meetings/Workshops
- Topic: Chesapeake Modeling Symposium; call for special sessions
- Replies: 0
- Views: 8217
Chesapeake Modeling Symposium; call for special sessions
Interested in numerical models for Chesapeake Bay? Consider leading a session at the upcoming ChesMS-2014, the Chesapeake Community Modeling Program’s Modeling Symposium, called “Chesapeake Frontiers: Modeling the watershed, estuary, living resources and the socio-economic system” Deadline for speci...
- Thu May 02, 2013 7:54 pm
- Forum: Meetings/Workshops
- Topic: Abstract Call: INTERCOH 2013 Fine Sediment Dynamics
- Replies: 0
- Views: 7702
Abstract Call: INTERCOH 2013 Fine Sediment Dynamics
Announcing the 12th International Conference on Cohesive Sediment Transport Processes (INTERCOH); University of Florida, Gainesville, Florida; October 21-24, 2013. INTERCOH meetings are dedicated to improving our understanding of the physical processes of cohesive sediment in the natural environment...
- Mon Jan 14, 2013 2:42 pm
- Forum: ROMS Problems
- Topic: Questions about the outcome of the test case riverplume2
- Replies: 3
- Views: 3269
Re: Questions about the outcome of the test case riverplume2
Hi I used riverplume2 to teach a class and we added sediment transport to the case. We did not change the downstream boundary condition. But this is how the case works: the grid has two open boundaries that are aligned across the shelf, which are upstream and downstream on a continental shelf. The “...
- Tue Jan 08, 2013 1:48 am
- Forum: ROMS Problems
- Topic: Questions about the outcome of the test case riverplume2
- Replies: 3
- Views: 3269
Re: Questions about the outcome of the test case riverplume2
Hi
I recently used riverplume2 for a test case in a class. And, yes, the salinity distribution evolves to look like that. I think to improve it you need to change the downstream open boundary condition for salinity.
Best wishes,
Courtney Harris
I recently used riverplume2 for a test case in a class. And, yes, the salinity distribution evolves to look like that. I think to improve it you need to change the downstream open boundary condition for salinity.
Best wishes,
Courtney Harris
- Mon Jun 11, 2012 7:15 pm
- Forum: ROMS Ecosystem
- Topic: BIO_SEDIMENT time delay of remineralisation
- Replies: 12
- Views: 23434
Re: BIO_SEDIMENT time delay of remineralisation
In response to some email queries; it seemed reasonable to put this on the forum as well. To add biological reactions to the sediment bed: the main thing I’ve done is add a new variable called “bed_tracer” to the sediment model. Like the t() array, “bed_tracer(i,j,k,itrc,nstp)” is 5-d, with i,j, bei...
- Thu Apr 12, 2012 12:59 am
- Forum: ROMS Ecosystem
- Topic: BIO_SEDIMENT time delay of remineralisation
- Replies: 12
- Views: 23434
Re: BIO_SEDIMENT time delay of remineralisation
HI- I have been working to couple the sediment transport and Fennel model within ROMS by adding a diagenetic model within the sediment bed model of ROMS. If you would like to see what we are doing, I can email you my Ocean Sciences 2012 powerpoint. email me if you would like to request it. Other gro...
- Tue Mar 13, 2012 4:53 pm
- Forum: Meetings/Workshops
- Topic: Chesapeake Modeling Symposium 2012 Abstract Deadline
- Replies: 0
- Views: 7323
Chesapeake Modeling Symposium 2012 Abstract Deadline
A reminder that March 15 is the deadline for abstract submission, and early-bird registration for the ChesMS-12 meeting to be held May 21 – 22, in Annapolis MD. Overall scope and aims of the meeting: The Chesapeake Community Modeling Program (CCMP) seeks to improve modeling tools and related resourc...
- Mon Oct 03, 2011 2:58 pm
- Forum: Meetings/Workshops
- Topic: Ocean Sciences 2012: Sediment in Estuaries and Caosts
- Replies: 0
- Views: 7356
Ocean Sciences 2012: Sediment in Estuaries and Caosts
Please consider submitting an abstract regarding modeling of sediment transport to our session: Session 029: Sediment Transport and Deposition in Lakes, Estuaries, and Shallow Shelves Organizers: Nathan Hawley, Great Lakes Environmental Research Laboratory, nathan.hawley@noaa.gov; Courtney K. Harris...
- Thu Sep 15, 2011 7:23 pm
- Forum: Job Opportunities
- Topic: Three Assistant Prof's in Geological / Physical Oceanography
- Replies: 0
- Views: 3079
Three Assistant Prof's in Geological / Physical Oceanography
The Department of Physical Sciences at the Virginia Institute of Marine Science of the College of William & Mary, located in Gloucester Point, VA, seeks applicants for tenure-track faculty positions to begin July, 2012. Successful candidates will join a department that focuses on continental mar...
- Fri Sep 03, 2010 6:35 pm
- Forum: ROMS Sediment
- Topic: question about sediment.F
- Replies: 2
- Views: 8794
Re: question about sediment.F
HI There are versions of the code that include biodiffusion and bed consolidation, but I assume neither of these have been approved for distribution in the main trunk. So, defining these "ifdef options" will not result in any changes to the code. If you are accessing the CSTMS svn site, th...
- Tue Jan 19, 2010 2:57 am
- Forum: ROMS Discussion
- Topic: How is the cohesive sediment treated in the latest ROMS?
- Replies: 1
- Views: 2357
Re: How is the cohesive sediment treated in the latest ROMS?
There is an option to run a cohesive sediment model that is different from the non-cohesive model described in Warner's papers. Chris Sherwood (USGS) has been the main developer of this module, and he would know (better than me) the current state of the module. The cohesive model follows the model d...
- Wed Nov 25, 2009 5:47 pm
- Forum: ROMS Usage
- Topic: option for wind forcing
- Replies: 19
- Views: 41812
Re: option for wind forcing
Question: Is it possible to include a time-series forcing for the surface momentum but neglect the surface heat fluxes? If so, how do I do this? BULK_FLUXES requires a time-series of wind speeds (which I have), but also specification of things that I don't have (air temperature, cloud cover, etc.). ...
- Thu Oct 01, 2009 2:26 pm
- Forum: Meetings/Workshops
- Topic: Sediment Session at Ocean Sciences
- Replies: 0
- Views: 6796
Sediment Session at Ocean Sciences
Hello The following Ocean Sciences Special Session invites abstract submissions, and is especially relevant to sediment modeling efforts: GO04 Sediment processes I: transport and deposition in lakes, estuaries, coastal bays, and continental shelves The physical characteristics of lakes, estuaries, c...
- Wed Jun 17, 2009 9:02 pm
- Forum: ROMS Sediment
- Topic: Sediment Bed Layers: Age
- Replies: 10
- Views: 9021
Re: Sediment Bed Layers: Age
In case anyone reads this thread in the future: John and I talked on the phone today and discussed the sediment bed model. We both agree that some of my changes may eventually be worked into the main trunk, but that they should be looked at more closely before doing so. My version now has three diff...
- Tue Jun 16, 2009 4:00 pm
- Forum: ROMS Sediment
- Topic: Sediment Bed Layers: Age
- Replies: 10
- Views: 9021
Re: Sediment Bed Layers: Age
HI I only have a minute to post this: one plot is bed thickness using standard age dating; and 1mm (0.001 m) NEWLAYER_THICKNESS. I do not get new layers at day 200 when the second depositional cycle begins, even though there is a big gap in age there. The other figure is bed_age relative to the begi...
- Mon Jun 15, 2009 9:07 pm
- Forum: ROMS Sediment
- Topic: Sediment Bed Layers: Age
- Replies: 10
- Views: 9021
Re: Sediment Bed Layers: Age
HI Thanks for spelling that out. I didn't get the behavior listed in (2), using standard ROMS, though it describes our test case pretty well. Until I changed the dating of the layers to mean the date when a deposit was started, I did not get a new layer during the second cycle of deposition in the t...
- Mon Jun 15, 2009 7:47 pm
- Forum: ROMS Sediment
- Topic: Sediment Bed Layers: Age
- Replies: 10
- Views: 9021
Re: Sediment Bed Layers: Age
HI The layers were all initially 0.5 cm thick, and newlayer_thick is also 0.5 cm thick in this testcase. I did have a problem with the initial conditions in that the age of the layers was too old (initialized with an age > model's time(ng)). But, even after I fixed that (now initialize with age of l...
- Mon Jun 15, 2009 6:21 pm
- Forum: ROMS Sediment
- Topic: Sediment Bed Layers: Age
- Replies: 10
- Views: 9021
Re: Sediment Bed Layers: Age
HI John thanks for the speedy response. for this test case, we have sediment deposit; then sit there for several days, then erode to a new steady state, stay there for several days, and then redeposit and remain at that state for several days. My cycle of erosion and deposition takes place over many...
- Mon Jun 15, 2009 5:37 pm
- Forum: ROMS Sediment
- Topic: Sediment Bed Layers: Age
- Replies: 10
- Views: 9021
Sediment Bed Layers: Age
HI Could someone remind me how the sediment-bed-age is supposed to work? Is it supposed to be the date when the deposition BEGAN in the layer? or the date when deposition ENDED in the layer? I want my sediment layers to be <~ NEWLAYER_THICK; and needed to change the age dating during depositional cy...
- Wed Mar 25, 2009 2:41 pm
- Forum: Meetings/Workshops
- Topic: 2010 Ocean Sciences Meeting - Call for Sessions
- Replies: 0
- Views: 6587
2010 Ocean Sciences Meeting - Call for Sessions
2010 Ocean Sciences Meeting - Call for Sessions "From Observation to Prediction in the 21st Century" is the theme for the 2010 Ocean Sciences Meeting which will be held February 22-26, 2010 in Portland Oregon. The Call for Sessions has just been posted - submissions are due May 29, 2009. F...
- Fri Oct 06, 2006 4:00 pm
- Forum: ROMS Information
- Topic: shrinkwrapping?
- Replies: 2
- Views: 3266
shrinkwrapping?
HI
Is anyone working on implementing shrink-wrapping in ROMS so that calculations are not performed at land cells? We have a model grid that has 90,000 grid points, but only 20,000 are water. It is an estuarine environment that has some long tidal channels.
thanks
courtney
Is anyone working on implementing shrink-wrapping in ROMS so that calculations are not performed at land cells? We have a model grid that has 90,000 grid points, but only 20,000 are water. It is an estuarine environment that has some long tidal channels.
thanks
courtney
- Fri Oct 06, 2006 3:56 pm
- Forum: ROMS Information
- Topic: ROMS Grid: what is essential?
- Replies: 3
- Views: 5861
ROMS Grid: what is essential?
HI What values are essential to getting a model grid that works? We want to run ROMS in the York River, Virginia. We got a copy of a good HEM3D grid from J.I. Kwan, and want to convert it to a ROMS grid file. HEM3D, however, does not seem to need to know anything about grid cells that are land so we...
- Mon Nov 07, 2005 3:51 pm
- Forum: ROMS Problems
- Topic: Running version 2.2 on Solaris with MPI?
- Replies: 0
- Views: 2505
Running version 2.2 on Solaris with MPI?
HI I've gotten a version of the code that runs on a Linux Opteron-based cluster, but can not get it to run on our solaris Opteron-based cluster. Does anyone have success running ROMS 2.2 on Solaris with MPI. If so, which FFLAGS do you use? We are using the Sun compiler, mpif90 (on our system under /...