Bathymetry Westerschelde
A nice impression of the bathymetry of the Westerschelde is shown in the overlay in Google Earth below. If Google Maps is shown instead of Google Earth, please try to install the plugin1. You can also download the kml file if you want to view the file in Google Earth.
Westerschelde long term data
You can view a graph of long term data by clicking a push pin in the Google Earth viewer below. Please select the link "Large image" in the popup to see more detail. If Google Maps is shown instead of Google Earth, please try to install the plugin1. You can also download the kml file if you want to view the file in Google Earth.
Visualisation of data
Some of our most recent measurements of the Westerschelde are visualised in the image below (an R script has been used to create the image). Please click the image to zoom in. You can also download this image in pdf format.
Estimating phytoplankton biomass from automated spectral reflectance measurements
Estimates of phytoplankton biomass (chlorophyll a) at high spatial resolution is obtained from automated spectral reflectance measurements, similar to remote sensing, but performed from our ship. Please click the image to zoom in.
Photosynthetic quantum efficiency as a measure of algal “stress”
Active fluorescence measurements performed with an automated Fast Repetition Rate fluorometer (FRRf) is used to estimate photosynthetic activity (Fv/Fm). Optimal values of Fv/Fm are around 0.6 and lower values indicate stress, caused by e.g. low temperature, herbicide toxicity or nutrient limitation. Please click the image to zoom in.
1 Having trouble using Google Earth Viewer in Microsoft Internet Explorer 10? Please have a look at the official Microsoft webpage how to switch the compatibility settings for this page.