Title: Feature Oriented Regional Modeling System (FORMS)
1Feature Oriented Regional Modeling System (FORMS)
as a synthesis component of the Global and
Coastal IOOS
- Avijit Gangopadhyay
- University of Massachusetts Dartmouth
- Email avijit_at_umassd.edu
- Seed funded by NASA
2OUTLINE
- Feature Oriented Regional Modeling
- Concept -- Initialization/Synthesis Methodology
- Example of Strategy in Sicily Strait
- Shallow water applications CCS
- Global Applications
- Feature oriented synthesis..
3Gulf Stream Front and Ring Analysis
2/11/02
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6Features in Western North Atlantic
Deep Sea region (GSMR)
Coastal region (GOMGB)
- Gulf Stream
- Warm Core Rings
- Cold Core Rings
- Southern Recirculation Gyre
- Northern Recirculation Gyre
- Deep Western Boundary Current
- Gangopadhyay et al., 3-part series in 1997
Journal of Atmospheric and Oceanic Tech. (14)
13141365
- Maine Coastal Current
- NEC Inflow
- GSC Outflow
- Jordan Basin Gyre
- Wilkinson Basin Gyre
- Georges Basin Gyre
- Georges Bank Gyre
- Tidal Mixing Front
- Gangopadhyay et al. 2003 Continental Shelf Res.
23(3-4), 317-353 - Gangopadhyay and Robinson, 2002 DAO 36(2002)
201-232
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8U(x,y,z)?(y)UT(x)-UB(x)?(x,z) UB(x)
T(x,y,z)Ta(x,z)?(x,z)?(y) where, Ta(x,z)T0(x)
-Tb(x)?(x,z) Tb
9In general, a coastal current (CC), a front (SSF)
and an eddy/gyre (E/G) are represented
by CC TM(x, ?, z) TMa(x, z) aM(x, z) ?M(?)
 SSF Tss(x, y, z) Tsh (x, z) (Tsl (x,
z) Tsh(x, z)) ?(?, z) Â E/G T(r, z) Tc
(z) - Tc (z) - Tk (z) 1-exp(-r/R) Â where,
TMa(x, z), Tsh (x, z) and Tc (z) are axis,
shelf and core ?(?) ?? (0 ? ? ? W) ?(?,
z) ½ ½ tanh(?-?.Z)/? Â
10Strategy for GOMGB
Feature Models at feature locations Regional
Climatology FORMS
MCC, WBG, JBG, GBG, GBAG, TMF, SSF, Inflow/Outflow
11FORMS Protocol
- Identify Circulation and Water mass features
- Regional Synthesis -- Processes from a modeling
perspective - Synoptic Data sets -- in-situ and satellite
- Regional Climatology (Background Circulation)
- Objective Analysis (Climatology Feature Models)
- Simulation -- Nowcasting/Forecasting
12Feature oriented methodology is applicable to ALL
different Numerical Models
- MOM (Modular Ocean Model)
- ROMS (Regional Ocean Model System)
- POM (Princeton Ocean Model)
- HYCOM
- MIT GCM
- HOPS (Harvard Ocean Prediction System)
- Finite Element / Finite Volume models
It is an Initialization and Assimilation
Methodology
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15Strait of Sicily Feature Oriented Regional
Modeling Set Up
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17FORMS Applications in Different Oceans
Ocean Application
Western North Atlantic Operational Modeling, e.g. AFMIS-RFAC
Strait of Sicily Dynamical Analysis
Monterey Bay Real-time forecasting w/ ROMS AOSN-II in summer 2003 upwelling
Brazil Current Meander-eddy-Upwelling Interaction
Persian Gulf, Arabian Sea, Red Sea Monsoonal FORMS
Chilean Waters - Northern Humboldt Currents Nested Biophysical Modeling
18 19Shallow water feature models
- Use of intelligent observations that are
important to resolve the scales and represent the
underlying dynamical processes - Not only temperature-salinity structure, but
include first-order dynamics - Process-oriented feature models
20Arabian Sea - Persian Gulf Red Sea
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22Meander-eddy-Upwelling System
23Elements of Synthesis
- Synthesis of Multi-sensor observational system
Satellite (SST, SSH, SSC), in-situ, CODAR --
using feature-oriented approach - Process-oriented shallow water feature models
- Feature Tracking -- High resolution data fusion
- EOF analysis for Vertical Structure determination
(Warn-Varnas et al., 2004) - High-resolution regional climatology
- Dynamical Adjustment via Models -- FORMS
24Some more thoughts
- Feature-oriented method allows for strategic
deployment of available resources - It optimizes (possibly maximizes) return on
investments (ROIs) - The returns are not only in but in science,
too - Minimizes human involvement (loss) because its
a knowledge-based system
25Thank You!!www.smast.umassd.edu/modeling/