Sökning: "Ocean Colour"
Hittade 5 avhandlingar innehållade orden Ocean Colour.
1. Uncertainty measurements and validation of ocean colour data in optically complex waters
Sammanfattning : The thesis addresses validation activities associated with the use of in situ and satellite-based radiometers to assess water quality parameters, such as chlorophyll-a (Chl-a), total suspended matter (TSM) and coloured dissolved organic matter (CDOM- also known as yellow substances, YEL) in CDOM-dominated waters. In paper I, an inter-comparison of in situ radiometers is presented. LÄS MER
2. Baltic Sea from Space : The use of ocean colour data to improve our understanding of ecological drivers across the Baltic Sea basin – algorithm development, validation and ecological applications
Sammanfattning : Coastal areas are the most densely populated areas in the world and thus are under immense anthropogenic pressure. To ensure their function and ecological role, coastal areas require continuous monitoring and management. The rapidly emerging field of satellite remote sensing provides a unique opportunity to monitor both land and oceans from Space. LÄS MER
3. Remote sensing in optically complex waters : water quality assessment using MERIS data
Sammanfattning : This PhD study focusses on the use of MEdium Resolution Imaging Spectrometer (MERIS) data for reliable and quantitative water-quality assessment of optically-complex waters (lake, brackish and coastal waters). The thesis is divided into two parts: A. LÄS MER
4. Bio-optics, satellite remote sensing and Baltic Sea ecosystems : Applications for monitoring and management
Sammanfattning : Earth observation satellites cover large areas with frequent temporal repetition and provide us with new insight into ocean and coastal processes. Ocean colour measurements from satellite remote sensing are linked to the bio-optics, which refers to the light interactions with living organisms and dissolved and suspended constituents in the aquatic environment. LÄS MER
5. Mahilaka : An archaeological investigation of an early town in northwestern Madagascar
Sammanfattning : In 1988, at the beginning of the 'Urban Origins in Eastern Africa' research project, it was thought that no towns existed in Madagascar prior to the 17th century. This thesis shows that Madagascar did in fact support an urban population with a wide range of local and regional contacts from the end of the first millennium AD. LÄS MER