09/06/2026
World Oceans Day | June 8: What Happens Inland... Reaches the Sea 🌊
Today is about oceans, but oceans do not exist in isolation.
Every river, lake, wetland, and stream is connected to them through the water cycle. What happens inland eventually reaches the sea.
The EU has set ambitious goals for restoring water ecosystems and improving their ecological status. But how will we know when restoration has succeeded?
What was the condition before intervention?
What is the condition after?
Which indicators demonstrate improvement?
And how do we distinguish real ecological recovery from temporary fluctuations?
Answering these questions requires reliable data and long-term monitoring.
Time series analysis, change detection, LiDAR, multispectral imagery, satellite and airborne data, together with field measurements, help quantify changes across catchments, riparian vegetation, hydromorphology, habitat condition, and restoration outcomes - helping move environmental assessment from assumptions to evidence.
The illustrations showcase Lithuania's hydrological connectivity and the diversity of its freshwater ecosystems, highlighting the relationships between topography, catchments, inland water bodies, and the Baltic Sea.