Sea from Space

 

Earth observation science and applications

Monitoring of the ocean on a regular and long-term basis is important to understand its role in our Earth system, track biological events and predict the potential response of the ocean to climate change. By using remote sensing techniques, scientists can ascertain near real-time conditions, such as sea surface temperature, chlorophyll concentration and optical properties, which can be used to monitor varying aspects of the marine environment. Scales of measurement vary from local (in situ), regional (aircraft-based) to global (satellite) scales.

 

Applications of observation data are wide ranging and include: the improvement of ecosystem model accuracy; understanding and quantifying oceanic biological and chemical processes including the carbon cycle, and using satellite imagery for particular societal and added-value purposes, for example, identifying harmful algal blooms (HABs).

 

In coastal areas remote sensing provides particularly useful information to measure and manage the interactions between society and the marine environment. Monitoring eutrophication, harmful algal blooms and processes associated with human activity can provide evidence based information to regulate coastal-based industries, develop ecosystem based management tools and protect human health.

Key research areas