An important variable to calculate local temperatures is the Sky View Factor (SVF) which is the fraction of sky visible from the ground. The SVF depends on the height of the obstacles in the surroundings of a given location. The goal is to capture small features like houses and trees throughout the Netherlands at a very high resolution. This dataset comprises the Sky View Factor of The Netherlands at 0.5 meter resolution raster based on Actual Height Model of the Netherlands (AHN2) elevation dataset. For a mapping of tile naming and geographical position please refer to https://www.arcgis.com/apps/Embed/index.html?appid=a0fac0a69f5343a3bbd15f5605dee4cc

Validated and gapfilled meteorological surface observations of precipitation, visibility, radiation, air pressure, wind speed, wind direction, temperature and dew point at Cabauw on a 10-minute basis. Visibility and precipitation type available from January 2008. For more information about how to interpret the data, please read: https://cdn.knmi.nl/knmi/pdf/bibliotheek/knmipubTR/TR384.pdf. Please note: Due to dataset maintenance, data uploading has been halted temporarily since 01-06-2021 for an unspecified time.

Degree days are determined by the effective daily mean temperature (Teff). Teff is calculated with the daily mean temperature (TG) and the daily mean windspeed (FG). Teff = TG - 2/3 * FG. Degree days = sum of the days with (max[(14 - Teff),0]).

Discharge has been measured at three locations. At these locations, measurement weirs have been installed in May 2007 to estimate discharges accurately. A V-notch weir is used to measure the inflow of surface water into the catchment near the Wielse Kade (Qin). Trapezoidal Rossum weirs have been installed to measure outflow (Qout1 and Qout2), of which the stage-discharge relations have been obtained by laboratory calibration. The uncertainty associated with the discharge measurement can be considerable in some cases.

This dataset contains an extension for 2018 of the Dutch Offshore Wind Atlas (DOWA). DOWA is validated wind climatology (and information on temperature, pressure and relative humidity) based on 10 years (2008-2017) of model data: weather model HARMONIE-AROME is nested in re-analyses ERA5. In this data set time series for individual grid locations are available for 2018. More information on the website: www.dutchoffshorewindatlas.nl. Note: the proj4 string in the NetCDF file is incorrect. It should be: +proj=lcc +lat_1=52.500000 +lat_2=52.500000 +lat_0=52.500000 +lon_0=.000000 +k_0=1.0 +x_0=-92963.487426 +y_0=230383.739533 +a=6371220.000000 +b=6371220.000000

This dataset contains the data used for the following paper: "Climate state dependence of precipitation variability". The following variables are available on a monthly timescale: total precipitation (TP), convective precipitation (CP), large scale precipitation (LSP), evaporation (E), poleward moisture transport (MFatmos), two-metre temperature (T2M), surface temperature (SSTK), sea level pressure (MSL) and geostrophic wind (uwind and vwind). All variables are available for five quasi equilibrium simulations of 400 years length forced with a broad range of CO2 simulations (025xco2, 05xco2, control, 2xco2, 4xco2) from 50N-90N.

Dataset contains backscatter profiles and system status signals from CT75 ceilometer at 30 s time resolution. Operational retrieved cloud base heights (up to 3 levels) are included. Vertical resolution: backscatter 30 m, for cloud base 15 m.

Discharge has been measured at three locations. At these locations, measurement weirs have been installed in May 2007 to estimate discharges accurately. A V-notch weir is used to measure the inflow of surface water into the catchment near the Wielse Kade (Qin). Trapezoidal Rossum weirs have been installed to measure outflow (Qout1 and Qout2), of which the stage-discharge relations have been obtained by laboratory calibration. The uncertainty associated with the discharge measurement can be considerable in some cases.

This dataset contains S-band (central frequency of 3.298 GHz) radar measurements from the TU Delft transportable atmospheric radar TARA. It includes profiles of the equivalent reflectivity factor. Further, the horizontal wind (speed and direction) and the vertical Doppler velocity profiles are supplied. TARA is placed at the remote sensing site at Cabauw. It is a very sensitive profiling radar providing time-height indicators.

Groundwater levels at Cabauw have been measured since August 2003 in two fields south of the tower. Nine piezometers were placed in a row. Initially, 6 of those piezometers contained pressure transducers (of the brand Keller) to measure levels automatically every 4 hours. On 9 July 2010, the temporal resolution was increased to hourly. Several sensors have stopped working since 2003. Piezometers that were not measured automatically were measured during each filed visit, which was initially every 2 weeks, but has become longer towards the end of the measurement period.