You are here: Home / Measurements


What ECN measures

ECN aims to provide a broad baseline of integrated environmental information applicable to a range of environmental issues (e.g. climate change, water pollution, biodiversity, atmospheric pollution). The measurements made by ECN therefore cover a wide range of physical, chemical and biological 'driving and response' variables. Consistency over time, a vital attribute of any long-term dataset is achieved by adherence to a clearly defined set of published analytical protocols.

While there are numerous long-term, issue-specific environmental monitoring initiatives nationally, ECN's unique multi-disciplinary approach enables the analysis of important relationships between environmental variables and across ecosystem components.

In this section you can find detailed information about the measurements we make and the protocols (methods) used.




  • In addition to these standard protocols, many ECN sites also carry out additional monitoring, often undertaken as part of other networks or initiatives.
  • Not all sites are measured at the indicated frequencies.

Our field activities


In March activities at our terrestrial sites pick up after the winter. We start monitoring frog pools, moths and spiders, and prepare for ground beetle recording in April. At freshwater sites the winter measurements continue.

See all this month's field measurements...

A moth light trap © CEH
[Photo © CEH]