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![](/_files/tech-alerts/kati_thanda_nov-mar_2025-2026_630px.gif)

<figure>
<figcaption><em>An animation shows seasonal changes in surface water availability in Kati Thanda–Lake Eyre, Nov 2024–Mar 2025 and Nov 2025–Mar 2026.</em></figcaption>
</figure>

Digital Earth Australia has released the latest Water Observations Statistics (Nov–Mar) seasonal summaries for 2025–26.

Derived from Landsat satellite data, these summaries capture where surface water was observed during the November–March period, providing a consistent national view of seasonal water patterns.

The updated summaries enable users to better understand seasonal variability in rivers, wetlands and floodplains. By highlighting areas of persistent water and short-term change, the dataset supports analysis of flooding, drought and environmental response to climate variability.

These seasonal products complement DEA’s long-term water datasets, offering additional context for research, planning and decision-making.

You are now able to access the data via [DEA Maps](https://maps.dea.ga.gov.au/#share=s-bQPsM0RuRszMOBTEUM3XdD4rk86 ) with further information available on the [DEA Knowledge Hub](/data/product/dea-water-observations-statistics-landsat/ ).

[View the newsletter]()
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## Changelog

### 15 Jul 2026: DEA Water Observations Statistics Nov-Mar summaries now available

:::{include} ../../../_components/tech-alert-jul-2026-wo-stats-nov-mar-summaries-available.md
:::

### 14 July 2026: Latest updates

Water Observation Statistics (Nov – Mar) (`ga_ls_wo_fq_nov_mar_3`) was updated with seasonal data (period: November 2025 to March 2026).
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% See the DEA Tech Alerts documentation:
% https://docs.dev.dea.ga.gov.au/public_services/dea_knowledge_hub/tech_alerts_changelog.html

## 15 Jul 2026: DEA Water Observations Statistics Nov-Mar summaries now available

:::{include} ../_components/tech-alert-jul-2026-wo-stats-nov-mar-summaries-available.md
:::

## 3 Jul 2026: Minor correction to outdated and conflicting grid references in DEA Maps, summary files

![The DEA Summary Product Grid (Collection 3, expanded) as seen on DEA Maps.](/_files/tech-alerts/2026-07-03-DEA-Maps-grid.jpeg)
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