WP5: Creation of gridded abundance data products | Emodnet Biology

WP5: Creation of gridded abundance data products

Leader: Royal Netherlands Institute for Sea Research (NIOZ)
ULg, VLIZ, SAHFOS, ICES, MBA, MARUM

Objectives

A set of gridded map layers will be produced showing the average abundance of at least three species per species group for different time windows (seasonal, annual or multi-annual as appropriate) using geospatial modeling. The accuracy of the method will be quantified, as well as the precision of the specific results and data used to calculate the products. In addition, spatially distributed data products specifically relevant for Marine Strategy Framework Directive Descriptor 2 (non-indigenous species) will be created. The methodology will be prepared in generic way, allowing the calculation of spatially gridded quality indicators or summary statistics where these are needed for MSFD. This work package will receive input from WP2, on the choice of most relevant indicator species and will receive spatial species abundance data from WP3. It will receive additional environmental information from other lots of EMODnet, e.g. on benthic habitat characteristics and water masses, to be used as co-factors in the gridding.

The specific objectives of work package 5 are:

  • to implement a methodology, consistent with the other lots of EMODnet and based on Data-Interpolating Variational Analysis (DIVA, ULg), that can be used to produce statistically optimized gridded map layers
  • to produce gridded map layers showing the average abundance of at least three species per species group in a given time window (seasonal, annual or multi-annual as appropriate, depending on the purpose of the analysis and the availability and time resolution of the data).
  • to estimate the accuracy of the gridding procedure by comparison with validation data. To complement the gridded map of averages with indications of the precision of the result based on the distribution of the basic data used to calculate the products
  • to produce spatial maps (data products) specifically relevant for Marine Strategy Framework Directive Descriptor 2 (non-indigenous species)
  • to produce spatial maps of relevant quality indicators for Marine Strategy Framework Directive, if and when agreed-upon indicators are available and computable based on data available in the present project