de.hamburg.icdc/amd.de.fval/wur.radgrid10Hz.l2.rsds en Similar to SAMD v2.2 FESSTVAL fval_wur_radgrid10Hz_l2_rsds Radiometer grid at Falkenberg and surroundings, downwelling shortwave radiation (1s), FESSTVaL campaign DOI:10.25592/uhhfdm.12548 Mol, Wouter and Heusinkveld, Bert Wageningen University and Research CF-1.7 where applicable external NETCDF4 de 45 daily 2 This data is subject to the FESSTVaL data policy to be found at https://doi.org/10.25592/uhhfdm.9890 and in the SAMD Observation Data Product Standard https://doi.org/10.25592/uhhfdm.9902. none Wageningen University and Research Mol Wouter wbmol@wur.nl 2021-06-14 2021-06-29 1 1 none Falkenberg, Germany This data set contains observations of the down-welling short wave irradiance spectrum from a network of custom-made multi-band radiometers at the Falkenberg site from June 14 to 30, 2021. The main variable is the global horizontal irradiance, which is calibrated against a high quality sun tracker at Falkenberg. Additional data includes raw measurements, pre-calibrated spectra (with limitations, see quality), and total column water vapor from spectra. Within the two weeks, we provide (with varying temporal coverage) cloud camera images at 5 seconds interval, which is helpful for interpreting the irradiance measurements (among other things). The strength of this data set is not the absolute accuracy, but rather the spatial measurements and ability to catch variability with high resolution. Measurements were taken in a small scale grid setup at Falkenberg: 20 sensors in 4 by 5 grid with a 50 meter grid spacing. Another 4 sensors were placed in all direction about 5 km away from the main grid at Falkenberg. The sampling rate is 10 Hz, with accurate GPS clock synchronisation, to catch all cloud-induced irradiance variability. Measurements were taken for 2 weeks, from June 14 to 30, 2021. For more details on the sensor itself, please see the (accepted for publication) pre-print here: https://egusphere.copernicus.org/preprints/2022/egusphere-2022-726/. Data gathering, quality, calibration (The global horizontal irradiance is calibrated against a high quality sun tracker at Falkenberg.), and performance is covered in detail in the manuscript https://doi.org/10.5194/egusphere-2022-726 and other to be publications specified later. none Solar radiation network 52.1534 - 52.17043 14.07141 - 14.204 53 - 67 0.4 - 1 Custom build radiometer v1.0

Data set

2022 Mol, Wouter; Heusinkveld, Bert; none http://doi.org/10.25592/uhhfdm.12548 Short term observations Local observations Instrument groups Radar 25 86400 rsds ('sensor_id', 'datetime') Short-wave broadband downwelling radiation (surface) W m-2 lat ('sensor_id',) latitude of instrument location degrees_north lon ('sensor_id',) longitude of instrument location degrees_east zsl ('sensor_id',) altitude of instrument location above sea mean level m zag ('sensor_id',) height of instrument above ground m quality ('sensor_id', 'datetime') Data quality flags datetime ('datetime',) Datetime seconds since 2021-06-29 sensor_id ('sensor_id',) Unique ID of radiometer instrument