International Soil Moisture Network
Also known as ISMN
The International Soil Moisture Network (ISMN) provides free access to long-term, harmonised and quality-controlled in situ soil moisture observations, covering the near-surface zone down to the deep-root zone. These observations are collected from around 3.000 sites belonging to various organisations that supply ISMN with data on a voluntary basis. Other relevant hydrometeorological variables such as rainfall and temperature are also stored in the database. Services provided by ISMN have made a major contribution towards calibrating/validating and improving global satellite soil moisture products and land surface models.
Getting access
Registration required Restricted (registration)
- How to apply
- Not yet verified — we don’t publish a route we haven’t checked.
Summarised from a registry — the exact application route is not yet verified.
Open access Open
- How to apply
- Not yet verified — we don’t publish a route we haven’t checked.
Summarised from a registry — the exact application route is not yet verified.
About this database
| Website | https://ismn.earth |
|---|---|
| Last updated | 2026-09-11 |