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MADS Hydrochemistry

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The national database for marine data (MADS)

Hydrochemistry

Watersampler

Hydrochemistry data includes measurements of nutrient, oxygen and chlorophyll a.

Water samples are collected at various depths and subsampled for subsequent laboratory analyses of the different components.

Nutrients monitored in the national monitoring program include nitrite, nitrate, ammonium, total nitrogen, phosphate, total phosphorus and dissolved silicate.

The filtering of samples for dissolved nutrients and chlorophyll a is conducted onboard the monitoring vessel.

Technical documentation for measuring nutrients (in Danish)
Technical documentation for measuring chlorophyll a (in Danish)

Data

Information on sampling locations within the Danish national marine monitoring program (NOVA 2003) and download of data can be accessed.

Inquires concerning data or comments on the page can be sent to Colin Stedmon.

Comments on content: 
Ole Houland Manscher

Revised 2012.02.07

New organisation

As per 1 July 2011 the National Environmental Research Institute (NERI) has been closed down. The research activities are now gathered at the Department of Bioscience and the Department of Environmental Science. In the future, consultancy services to authorities etc. will be provided by the DCE - Danish Centre for Environment and Energy on the basis of input from these two and other Aarhus University departments. The information available at www.neri.dk will be rearranged accordingly in the coming months. Read more about the DCE - Danish Centre for Environment and Energy.

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