# Presentation: 709492

## NOPP Update:  Community Sediment Transport Modeling (CSTM)

***Rich Signell, USGS***

## Origins of the CSTM

**Community Sediment Transport Workshop, **
**Woods Hole, June 2000**
- 55 scientists attended (academic, government, industry)
-  “Workshop discusses community models for coastal sediment transport”, EOS Transactions of the American Geophysical Union 81(43):502
*** “******Wide acceptance of a community sediment transport model would make an effective tool for scientific research****.* ...no existing model has the features that would allow wide access and acceptance by the community: freely available code; state-of-the-art hydrodynamic and sediment algorithms with modern, modular coding; comprehensive documentation; and demonstrated performance on a suite of community defined test cases.”

**Notes:**
The 55 scientists were from academia, government agencies (including NOAA, COE, EPA), and commercial consulting companies

## Regional Ocean Modeling System

**Free surface, hydrostatic ocean model w/ time-splitting**
**Finite-difference 3D Reynolds-averaged Navier-Stokes equations**
**Horizontal orthogonal curvilinear Arakawa C grid**
**Vertical stretched terrain-following “S” coordinates**
**Wide range of advection schemes: (e.g. 3rd-order upstream-biased, 4****th****-order)**
**Wide range of open boundary conditions: (e.g. Radiation, clamped, nudged) **
**NetCDF CF-1.0 compliant I/O **
**Wide range of vertical mixing schemes (k-epsilon, k-omega, MY2.5, LMD, Umlauf-Burchard)**

**Hibler ice model w/ Mellor-Kantha thermodynamics**
**Surface and bottom boundary layer models **
**ECOSim biological module**
**Model adjoint for data assimilation**
**Fortran 90; Runs on any Unix, Mac, and Windows**
**Parallel code in MPI and OpenMP**

**Notes:**
We chose ROMS for three major reasons (wide array of algorithms, wide range of applicability, and wide range of community participation)

## Regional Ocean Modeling System 

** ****Public domain, open source code**
** ****Web site, discussion forum**
** ****Development support thru ONR**
**  ****Over 500 internationally registered users **

- Hernan G. Arango
- IMCS, Rutgers

- Alexander F. Shchepetkin
- IGPP, UCLA

- Andrew M. Moore
- PAOS, U. Colorado

- Emanuele Di Lorenzo
- Georgia Tech

- Bruce D. Cornuelle
- SIO, UCSD

- Arthur J. Miller
- SIO, UCSD

- Kate S. Hedstrom
- ARCS/UAF

- Mark G. Hadfield
- NIWA

- John L. Wilkin
- IMCS, Rutgers

- W. Paul Budgell
- IMR, Norway

- Meinte Blaas
- Delft Hydraulics

- Christopher R. Sherwood
- USGS

- Richard P. Signell
- USGS

- John C. Warner
- USGS

- W. Paul Bissett
- FERI

- Katja Fennel
- IMCS, Rutgers

- Hartmut Frenzel
- IGPP, UCLA

- Xavier J. Capet
- IGPP, UCLA

- Pierrick Penven
- U. of Cape Town

- Patrick Marchesiello
- IRD, Bretagne

- Yusuke Uchiyama
- IGPP, UCLA

- Yuliya Kanarska
- IGPP, UCLA

- David Robertson
- IMCS, Rutgers

- Tal Ezer
- Princeton U.

## Sediment Transport Components

- Suspended sediment transport

-  when *t**b** > **t**ce*

- Erosion formulation

- Deposition formulation

- Bed Model

- non-dimensional shear stress

- non-dimensional sediment flux

- bed load transport rate, kg m-1s-1

- Bed load transport: Meyer-Peter Muller

## Hudson River

**Hudson River**

- Nitsche, et al. (2005) EOS

- ROMS sediment modeling

## USGS Contributions (Warner, mostly)

## Slide 8

**Notes:**
Received funds from ONR just last week, first meeting in mid-December.

## NOPP Program Tasks

**T1. Science and Technical Management and Review**
**T2. Model Development and Coupling**
**T3. Software Tool Development **
**T4. Algorithm Development **
**T5. Community Engagement**
**T6. Applications**

## Algorithm Development

- Non-cohesive bottom boundary layer formulations, suspended and bedload transport (Soulsby & Whitehouse)
- Cohesive Sediments: Erosion, deposition, Consolidation and Stratigraphy (Sanford, Blumberg & Winterwerp)
- Sediment and Optics (Keen & Campbell)

## Algorithm Development

- Parameterization of BBL and Sediment Using a High-Resolution Two-Phase Transport Model (Hsu & Traykovski)
- Large Eddy Simulations (LES) for parameterization of sediment suspension (Chang)
- High-Resolution RANS model (DUNE3D) for wave-current bottom boundary layer (Foster)

## Algorithm Development

- Wave-current interactions (McWilliams, Kirby, Roelvink)
- Shoreline boundary conditions  (Kirby, Shi, McWilliams, Roelvink)

## Earth System Modeling Framework

- Provides tools for turning model codes into components with standard interfaces and standard drivers.
- Provides data structures and common utilities such as data communications, regridding, time management and message logging.

- NRL (Allard, Campbell, Keen): Develop coupled applications to support operational Navy:
- -HYCOM-CICE (ocean, ice)
- -SWAN-ADCIRC (wave, circulation)
- -ADCIRC-WASH123D (circulation, riverine, watershed)
- -COAMPS-NCOM (atmosphere, ocean)

## Slide 14

## Generic Visualization Tools via Standards: IDV

**Generic Visualization Tools via Standards: IDV**

## CF-CompatibleFORMATS

- Unidata Common Data Model(CF)

- JAVAAPI

- FORTRAN API

**CF-Compatible****FORMATS**

**CF-APIS**

**CF Applications**

**  ****CF Conventions**

- AnalysisTool

- NetCDF-Java

## Simple Matlab Access

- lon=nc{‘lon’}(:);
- lat=nc{‘lat’}(:);
- ele=nc{‘ele’}(:);
- salt=nc{‘salt’}(1,1,:);
- trisurf(ele,lon,lat,salt)
- [t,b,jday,u]=CFtime(nc,’time’)
- title([‘Salt ‘,datestr(jday(1))])

**Simple Matlab Access**

## CFtime.m (no API)

## CFtime.m (with API)

## Summary

- Maintain cross-participation in MORPHOS and CSTM meetings to stay abreast of scientific (algorithm) and technical developments and to help guide our respective programs in collaborative ways
- Work with ESMF developers to ensure that their infrastructure tools meets MORPHOS and CSTM needs
- Work with CF Conventions Group, IOOS MAST, and ESMF to ensure that developing Grid Standards meet both MORPHOS and CSTM needs, and build analysis and visualization tools that work with these standards