Projects from the department of Observations & Data Technology

  1. photo cabauw
    Cabauw Atmospheric Research

    The atmospheric research facility in Cabauw aims to acquire knowledge on observations and to innovate meteorological observation techniques and products that are essential for the operational services and atmospheric research of KNMI.

  2. Figure 1: Map of mean hourly precipitation over the period 2013-2020 based on the EURADCLIM dataset. Map made with Natural Earth. Free vector and raster map data ©
    EURADCLIM: The European climatological high-resolution gauge-adjusted radar rainfall dataset

  3. printscreen geoweb
    GeoWeb, the next generation web-based tooling for monitoring the atmosphere

    GeoWeb is an web-based integrated system that is currently being developed at KNMI to realize the next generation tooling for monitoring the atmosphere by forecasters, scientists and developpers.

  4. Figure 1: Sources of error affecting radar measurement of precipitation (courtesy of Markus Peura of FMI).
    Quality enhancement of quantitative precipitation estimates

    Accurate quantitative precipitation estimates are important for a wide range of applications. Therefore KNMI is working on enhancing the quality of its radar- and rain gauge-based precipitation products.

  5. Ruisdael Observatory
    Ruisdael Observatory

    We will create an unprecedented three-dimensional picture of the great “skies over Holland”, pioneered in canvas and paint by the famous 17th-century artist Jacob van Ruisdael.

  6. ZephIR 300M wind lidar at CESAR Observatory in Cabauw, the Netherlands.
    Wind lidars for operational wind profile measurements and model validation

    Ground-based Doppler wind lidars are laser-based remote sensing instruments that measure wind speed and wind direction up by measuring the Doppler-shift of the backscattered laser light, typically by aerosols in the moving air.

  7. DOWA and KNW domains and orography

    The Dutch Offshore Wind Atlas (DOWA) provides a 10 year wind climatology for the North Sea.

  8. Monitoring European Climate using Surface Observations
    Monitoring European Climate using Surface Observations

    This service is part of the Copernicus Climate Change Service (C3S). It provides climate monitoring products for Europe, based on surface in-situ observations.

  9. C3S Data Rescue Service Portal
    The C3S Data Rescue Service Portal

    The Copernicus Climate Change Service (C3S) Data Rescue Service Portal is a web-based user-updatable system to coordinate and facilitate global data rescue activities.

  10. (Upper Left) Rainfall attenuates the signals transmitted from the circular antenna of one cellular communication tower to another. (Lower Left) A close-up of two antennas. (Right) Map of The Netherlands with the locations of 1,751 link paths. (1)
    Rainfall estimation using commercial cellular communication link networks

  11. Global distribution of BSRN stations in January 2015. Operational stations produce quality-controlled data and submit data to the central BSRN datavase at AWI in Bremerhaven, Germany.
    Baseline Surface Radiation Network (BSRN)

    The objective of BSRN is to provide top-quality observations of the shortwave and longwave irradiances at the Earth’s surface.

  12. Actual (upper panel) and 2h forecast (lower panel) of solar radiation for the Netherlands on 16th June 2016 based on the advection of SEVIRI cloud physical properties using atmospheric motion vectors.
    Forecast of solar radiation in the Netherlands

    Forecasts of solar radiation are needed for the operation of solar power plants, in order to integrate stable electricity into the grid and to optimize the production of solar energy according to demand.

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    The European Natural Airborne Disaster Information and Coordination System for Aviation, a H2020 project. Towards closing the significant gap in European-wide data and information availability during airborne hazards.

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    Earth System Grid Federation (ESGF)

    Active member of the ESGF, a global system of federated data centers that allow access to the largest archive of climate data world-wide. Part of the European IS-ENES infrastructure.

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    VERCE is a data-intensive e-science environment to enable innovative data analysis and data modelling methods that fully exploit the increasing wealth of open data generated by the observational and monitoring systems of the global seismology community.

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    Climate4impact is a portal aiming to enhance the use of climate research data.

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    Framework for the storage and access of data-intensive streaming provenance.

  18. Screenshot KNMI Data Platform
    KNMI Data Platform

    KNMI Data Platform (KDP) is the access point for all meteorological, climate and seismological data in the Netherlands.

  19. Turbulence instruments at the 180 m level of the meteorological mast.
    Cabauw in-situ measurements

    The Cabauw in-situ observational program aims at characterizing the physical aspects of the land surface and atmospheric boundary layer, and their interaction.

  20. Acceptance test of the Lufft CHM15k ceilometer at the Cabauw research site.
    Surface Observations

    Continuity and quality of the meteorological surface observations are of crucial importance to end users in weather, climate and aeronautical application areas.

  21. Nocturnal bird migration as seen by the Herwijnen radar
    Estimating bird migration using weather radar

    KNMI operationally monitors bird migration using its weather radars.

  22. Installation of the dual-polarization radar in Herwijnen (photo: Kees Lemcke)
    Optimizing the use of dual-polarization weather radar data

    There are many different users of radar data (hydrologists, forecasters, ornithologists, general public, among others), and they can all benefit from polarimetry.

  23. Figur 1.Experimental set-up of three common Personal Weather Stations (PWSs) rain gauges next to a high quality rain gauge.
    Quantifying quality of crowd-sourced weather data

    In the past there have always been weather enthusiasts interested in measuring weather in their direct environment.

  24. Peak values of the Central England temperature series.
    Statistical Toolkit

    Statistical methods form the necessary scientific basis for assessing trends in climate, seismicity, and the likelihood of extreme events and associated hazards.

  25. Fig. 1: Sampling an atmospheric boundary layer in which the wind speed and direction depend on height, in the surroundings of Cabauw during 18 June 2013.
    Wind measurements from hot-air balloon flights

    Trajectories from commercial hot-air balloon flights can provide interesting wind information of the lower atmosphere.