Comparable methods, traceable data and documented quality are essential across countries, regions and over time. Most data in EBAS comply with well-described measurement guidelines and standard operating procedures (SOPs). The link below provides access to measurement guidelines and the SOPs used for most observations reported to EBAS. The SOPs and guidelines are recommended by EMEP, ACTRIS and GAW
If you have measurements from instruments not included here, please contact the EBAS team (ebas@nilu.no) for further help.