About IOOS

ROMS Diagnostics: Overview


Introduction to Model Diagnosticsvelocity movie

In the ROMS Diagnositics Section, various metrics of model performance are provided. This page serves as an brief introduction to the modeling process and the parts of the model analyzed.

Data Assimilation is the process of combing observations with a model to create a best estimate of the ocean state, in a least-squares sense (for detailed information on data assimilation in ROMS, click here). This new state estimate, spanning from a few days prior to the latest date, is referred to as the analysis. The latest analysis is called the nowcast. From the nowcast, the model produces a prediction of the ocean state up to 8 days forward. The prediction is known as the forecast.



Note: These model data were generated as part of an academic research project, and the principal investigator, Brian Powell, asks to be informed of intent for scientific use and appropriate acknowledgment given in any publications arising therefrom. The data are provided free of charge, without warranty of any kind.

Please consider acknowledging PacIOOS in any distribution or publication of data as follows: Data provided by PacIOOS (www.pacioos.org), which is a part of the U.S. Integrated Ocean Observing System (IOOS®), funded in part by National Oceanic and Atmospheric Administration (NOAA) Award #NA11NOS0120039.