ROMS Data Assimilation Tools and Techniques

reportActive / Technical Report | Accession Number: ADA611937 | Open PDF

Abstract:

Our long-term technical goal is to develop and test the Tangent Linear Model TLM, Representer Model RPM, and Adjoint Model ADM versions of ROMS Regional Ocean Modeling System and TOMS Terrain-following Ocean Modeling System for variational data assimilation, ensemble forecasting, and stability analysis. The primary focus is to develop a general platform for strong and weak constraint 4D Variational data assimilation 4DVar to develop an ensemble prediction capability based on optimal perturbations and stochastic optimals and to develop stability analysis tools based on eigenmodes and singular vectors to explore the role of environmental stochastic forcing in shaping ocean circulation. Our long-term scientific goal is to model and predict the mesoscale circulation and the ecosystem response to physical forcing in the various regions of the World Ocean through state estimation.

Author(s):
Di Lorenzo, Emanuele
Author Organization(s):
GEORGIA INST OF TECH ATLANTA SCHOOL OF EARTH AND ATMOSPHERIC SCIENCES
Descriptive Note:
Annual rept.
Supplementary Note:
DOI: 10.21236/ADA611937
Pagination:
0010

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
N00014-05-1-0365
Monitor Series:
ONR
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_1_Force Support; JCA_1.2.7_Experimentation; JCA_1.2_Force Preparation; JCA_1.2.3_Educating; JCA_6_Net Centric; JCA_8_Building Partnerships
Modernization Areas:
Space
Communities of Interest:
Advanced Electronics
Descriptor(s):
*OCEAN CURRENTS, *OCEAN MODELS, ECOSYSTEMS, ESTIMATES, FORECASTING, PERTURBATIONS, PREDICTIONS, STABILITY, STOCHASTIC PROCESSES, TERRAIN FOLLOWING, UNCERTAINTY
Field(s)/Group(s):
Physical and Dynamic Oceanography, Statistics and Probability
Keyword(s):
*ROMS(REGIONAL OCEAN MODELING SYSTEM), *TLM(TANGENT LINEAR MODEL), *ADM(ADJOINT MODEL), *TOMS(TERRAIN FOLLOWING OCEAN MODELING SYSTEM), *DATA ASSIMILATION, ENSEMBLE FORECASTING, STABILITY ANALYSIS, 4DVAR(4D VARIATIONAL DATA ASSIMILATION), GST(GENERALIZED STABILITY THEORY)
Report Date:
2006 Sep 30
Creation Date:
2015 Jan 26