MODES applies three-dimensional linear wave theory for the decomposition of global circulation in terms of normal-mode functions (NMFs). NMFs used by MODES are eigensolutions of the linearized primitive equations in the terrain-following sigma coordinates and were derived by Kasahara and Puri (1981, Mon. Wea. Rev). The available data are three data sets (40 years), calculated from ERA5 reanalyses by modal filtering of certain wave components, here Kelvin waves (KW), Mixed Rossby-gravity waves (MRG) and Rossby wave n=1 (Rosn1). Near-realtime modal decompositions of ECMWF deterministic forecasts, using the same tool (MODES) as has been used for the generation of the dataset are under this URL: https://modes.cen.uni-hamburg.de/
Sielmann, Frank; Zagar, Nedjeljka; Lunkeit, Frank (2023). CLICCS-MODES - Modal wave filtering of ERA5 reanalyses with MODES (Version 2.0). World Data Center for Climate (WDCC) at DKRZ. https://doi.org/10.26050/WDCC/CLICCS-A2-M
SQA - Scientific Quality Assurance 'approved by author'
Result Date
2023-06-29
Technical Quality Assurance (TQA)
TQA - Technical Quality Assurance 'approved by WDCC'
Description
1. Number of data sets is correct and > 0: passed; 2. Size of every data set is > 0: passed; 3. The data sets and corresponding metadata are accessible: passed; 4. The data sizes are controlled and correct: passed; 5. The spatial-temporal coverage description (metadata) is consistent to the data, time steps are correct and the time coordinate is continuous: passed; 6. The format is correct: passed; 7. Variable description and data are consistent: passed
Method
WDCC-TQA checklist
Method Description
Checks performed by WDCC. The list of TQA metrics are documented in the 'WDCC User Guide for Data Publication' Chapter 8.1.1
[1] DOIŽagar, N.; Kasahara, A.; Terasaki, K.; Tribbia, J.; Tanaka, H. (2015). Normal-mode function representation of global 3-D data sets: open-access software for the atmospheric research community. doi:10.5194/gmd-8-1169-2015