.. _part2: CMIP workshop part 2 =============================== Presentation ++++++++++++ Slides from the presentation can be downloaded :download:`here `. Practical part ++++++++++++ Outline * Recap of part 1 * Which type of data access makes sense for your data processing? * CMOR post-processing and QA Working with CMIP data - other ways of access than ESGF web portal ---------------- **Server-side data storage** | IS-ENES (ended in 2023 but great portal) | https://is.enes.org/ | SMHI (Bolin Centre) data library | Available on Tetralith but requires permission **Large scale data download and synchronisation with ESGF** | ESGpull | https://esgf.github.io/esgf-download/ Data format - CMOR and CMORisation ---------------- | CMOR - Climate Model Output Rewriter | https://cmor.llnl.gov/ | CMOR tables | https://github.com/PCMDI/cmip6-cmor-tables/tree/main | Conversion table from native model variable to CMOR format - NorESM example | https://github.com/NorESMhub/noresm2cmor/blob/master/namelists/CMIP6_NorESM2-LM/historical/template/var.nml Exploring CMIP data ------------------------ **Your task** * Find monthly mean precipitation flux for SSP2-4.5 from NorESM2-LM * How many members are there? * What is the model resolution of the atmosphere component? * Available variants? * Available dataset version(s) for say r1i1p1f1? * On which server are the data located? Are there any replicas anywhere? * How many files are in r1i1p1f1? * Download the r1i1p1f1 dataset * Inspect metadata in one of the netCDF files with ncdump * Look at the data with ncview * Load data in jupyter notebook/python/other plotting tool and make plots (maps and timeseries) **Questions**