> ## Documentation Index
> Fetch the complete documentation index at: https://data.avert.ldeo.columbia.edu/llms.txt
> Use this file to discover all available pages before exploring further.

# Products

> MultiGAS data products

The MultiGAS station at Poas produces continuous time series of volcanic gas concentrations and ratios. These data are managed by OVSICORI.

<Columns cols={2}>
  <Card title="Gas Concentrations">
    Time series of H₂O, CO₂, and SO₂ concentrations measured in the volcanic plume near the active crater.
  </Card>

  <Card title="Gas Ratios">
    Derived ratios such as CO₂/SO₂ that help distinguish magmatic from hydrothermal gas sources and track changes in volcanic activity.
  </Card>
</Columns>