LETKF-based Ocean Research Analysis version 2.0 for a quasi-global domain (LORA-QG): validation and intercomparison with eddy-permitting global ocean reanalysis datasets
LETKF-based Ocean Research Analysis version 2.0 for a quasi-global domain (LORA-QG): validation and intercomparison with eddy-permitting global ocean reanalysis datasets
Shun Ohishi, Takemasa Miyoshi, and Misako Kachi
Ocean Sci., 22, 2915–2938, https://doi.org/10.5194/os-22-2915-2026, 2026
We developed an eddy-permitting local ensemble Kalman filter (LETKF)-based Ocean Research Analysis (LORA) version 2.0 for a quasi-global domain (LORA-QG) covering the period from June 2002 onward. Validation shows that LORA-QG achieves accuracy comparable to existing global ocean reanalysis datasets. LORA-QG includes ensemble-based uncertainty estimates and individual terms of the heat and salinity budget equations, making it a valuable resource for ocean forecasting and process-based studies.
