From db7c6e3b0370bc22fd4d2f868f5ed9cdb34c96e7 Mon Sep 17 00:00:00 2001 From: Francis Casson Date: Fri, 9 Jan 2026 10:20:36 +0000 Subject: [PATCH 1/2] Update README.md Add note on sign conventions --- README.md | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/README.md b/README.md index 8f6741b..6adb57b 100644 --- a/README.md +++ b/README.md @@ -35,6 +35,11 @@ Note that free boundary equilibrium is only available for the EB-CC scenario, wh SimDB aliases and UUIDs are provided for internal provenance tracking. +## Sign conventions + +* IMAS output (Data Dictionary version 3) is [COCOS 11](https://imas-data-dictionary.readthedocs.io/en/latest/cocos.html#cocos) +* Eqdsk output is COCOS 1 (consistent with [original definition](https://w3.pppl.gov/ntcc/TORAY/G_EQDSK.pdf)) + ## Sources and citing To cite this release, please use the following: From d620a204d1e33a6bc7391d64466bee5210b68446 Mon Sep 17 00:00:00 2001 From: Francis Casson Date: Fri, 9 Jan 2026 10:30:37 +0000 Subject: [PATCH 2/2] Update README.md Notes on file formats, IMAS open source --- README.md | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/README.md b/README.md index 6adb57b..05c826a 100644 --- a/README.md +++ b/README.md @@ -16,7 +16,7 @@ This design milestone is variously known as SPR45, SPP-001, and CML5. It does not necessarily reflect the current or future state of the STEP programme. The data is provided in [IMAS data entries](https://imas-data-dictionary.readthedocs.io/en/latest/) containing IMAS data structures (IDSs). -Two formats are provided: `*/imasdb/*`, entries written with the HDF5 Access Layer (not currently open source), and `*/STEP_SPP_001_*.nc`, NetCDF5 entries readable with [IMAS-Python](https://imas-python.readthedocs.io/en/stable/netcdf.html) (open source). +Two formats are provided: `*/imasdb/*`, entries written with the [IMAS Access Layer](https://imas-core.readthedocs.io/en/latest/user_guide/index.html) using the HDF5 backend, and `*/STEP_SPP_001_*.nc`, NetCDF5 entries readable directly with [IMAS-Python](https://imas-python.readthedocs.io/en/stable/netcdf.html). Both formats may be read with open source IMAS software components (though the installation and dependencies of the latter are lighter). ## Contents @@ -35,10 +35,11 @@ Note that free boundary equilibrium is only available for the EB-CC scenario, wh SimDB aliases and UUIDs are provided for internal provenance tracking. -## Sign conventions +## Sign conventions and file formats * IMAS output (Data Dictionary version 3) is [COCOS 11](https://imas-data-dictionary.readthedocs.io/en/latest/cocos.html#cocos) * Eqdsk output is COCOS 1 (consistent with [original definition](https://w3.pppl.gov/ntcc/TORAY/G_EQDSK.pdf)) +* JETTO native output (`jetto.jsp`, `jetto.jst,` etc) is COCOS 2 and may be read into python with [jetto-tools](https://pypi.org/project/jetto-tools/). ## Sources and citing