MSG-CPP Data Access

KNMI Data Platform

MSG-CPP products for the full disk can be downloaded here at the KNMI Data Platform (KDP). They are available since 15 November 2024. The access documentation provides detailed instructions on how to obtain both anonymous and authenticated access to the Open Data API, MQTT notifications, and WMS services. The available products can also be previewed.

For MTG-CPP products (available since 1 August 2026), these are the links to download, access documentation and preview.

WMS Services

WMS services are available to visualize and download the MSG-CPP and MTG-CPP products.

The services adhere to the specifications of the Open Geospatial Consortium (OGC) and can be used anonymously, with a strict request limit, and with an API key. The services work independently of the provided portal, e.g. anybody can use the services directly in their own viewer by using the service links provided in this page. The dataplatform WMS API documentation provides more information.

The services can be viewed directly in a web portal, for example (with a history of one week) on the KNMI ADAGUC viewer:

• MSG Cloud optical thickness, full disk
• MTG Global radiation, The Netherlands

ADAGUC and OGC Web Services

The spatial data infrastructure is based on OGC compliant web services. These web services include Web Mapping Services (WMS) for online visualization and Web Coverage Services (WCS) for downloading raster data. The MSG-CPP data is produced in the network common data format (NetCDF) with Climate and Forecast (CF) conventions and then offered in the OGC services.

The high resolution of the images and the large data volumes are challenging for real-time and web based visualization services. The ADAGUC OGC server has been optimized to enable quick rendering of visualizations from NetCDF data. The server reads the NetCDF4 files directly and interpolates the data to the desired geographic projection and location. A feature of the server is the support for NetCDF flag values and flag meanings as specified in the CF conventions.

OGC Web Map Service (WMS) URLs

GetCapabilities

Using this request an XML file with description of the OGC WMS service is obtained:

• MSG-CPP: https://api.dataplatform.knmi.nl/wms/adaguc-server?dataset=msg_cpp_products&service=WMS&request=getcapabilities (XML file)
• MTG-CPP: https://api.dataplatform.knmi.nl/wms/adaguc-server?dataset=mtg_cpp_products&service=WMS&request=getcapabilities (XML file)

Example GetMap Request

Here is a GetMap request of the most recent global radiation image from MSG. The source of the data (EUMETSAT/KNMI) is embedded in the image.

OGC Web Coverage Service (WCS) URLs

GetCapabilities

Using the following request an XML file with description of the (MSG-CPP) OGC WCS service is obtained. For MTG-CPP simply change msg in the request to mtg.

• https://api.dataplatform.knmi.nl/wms/adaguc-server?dataset=msg_cpp_products&service=WCS&request=getcapabilities (XML file)

Example GetCoverage Request

This is a request with which data can be interpolated, subsetted, reprojected and converted to different formats. In the example URL below, the current (latest available) precipitation rate is projected to latitude-longitude projection (EPSG:4326). An area of longitudes between 0 and 15 and latitudes between 45 and 60 containing 100x100 pixels is selected. The requested file format is NetCDF. Again, for MTG-CPP instead of MSG-CPP, change msg in the link to mtg.

• https://api.dataplatform.knmi.nl/wms/adaguc-server?dataset=msg_cpp_products&service=wcs&request=getcoverage& coverage=lwe_precipitation_rate&FORMAT=NetCDF4&CRS=EPSG%3A4326& BBOX=0,45,15,60&WIDTH=100&HEIGHT=100&time=current (NetCDF file)