7a38038e-9e1a-11ed-b02e-52de3d22f2a7 Koninklijk Nederlands Meteorologisch Instituut (KNMI) Koninklijk Nederlands Meteorologisch Instituut (KNMI) Koninklijk Nederlands Meteorologisch Instituut (KNMI) opendata@knmi.nl opendata@knmi.nl 2026-06-02T08:24:26.553752Z ISO 19115 ISO 19115:2003 NL Kernset 1.3 KNMI 2.1.0 http://www.opengis.net/def/crs/EPSG/0/4326 http://www.opengis.net/def/crs/EPSG/0/4326 KNMI UV-polarisation lidar Ascension Island initiative (ASCII) campaign data KNMI UV-polarisation lidar Ascension Island initiative (ASCII) campaign data KNMI UV-polarisation lidar Ascension Island initiative (ASCII) campaign data 2023-01-26 1.0 urn:xkdc:ds:nl.knmi::cesar_uvlidar_ascension_island_attenuated_backscatter/1.0/ A ground-based UV-polarisation lidar was deployed to infer cloud droplet sizes and droplet number concentrations near the cloud base of cumulus clouds over Ascension Island. The measurements were part of the 2016 en 2017 ASCII campaigns to study aerosol-cloud interactions in the stratocumulus to cumulus transition zone of the southeast Atlantic Ocean. Measurements of uncalibrated attenuated backscatter were acquired at 30 seconds and 15 meters resolution. A ground-based UV-polarisation lidar was deployed to infer cloud droplet sizes and droplet number concentrations near the cloud base of cumulus clouds over Ascension Island. The measurements were part of the 2016 en 2017 ASCII campaigns to study aerosol-cloud interactions in the stratocumulus to cumulus transition zone of the southeast Atlantic Ocean. Measurements of uncalibrated attenuated backscatter were acquired at 30 seconds and 15 meters resolution. Een UV-polarisation lidar is gebruikt om metingen van wolkendruppelgrootte en -nummerconcentraties te meten in de wolkenbases van cumulus-wolken boven Ascension Island. De metingen zijn onderdeel van de ASCII-veldcampagnes in 2016 en 2017 in de stratocumulus-naar-cumulustransitiezone in the zuidoostelijke Atlantische Oceaan. De ongecalibreerde attenuated backscatter lidar metingen hebben een resoultie van 30 seconden en 15 meter. Koninklijk Nederlands Meteorologisch Instituut (KNMI) Koninklijk Nederlands Meteorologisch Instituut (KNMI) Koninklijk Nederlands Meteorologisch Instituut (KNMI) opendata@knmi.nl opendata@knmi.nl Climate Climate Klimaat laser laser laser cloud cloud wolken aerosol aerosol aerosol lidar lidar lidar DG Discovery Properties Vocabulary 1.0 DG Discovery Properties Vocabulary 1.0 2013-01-01 Open data Open data Open data No use limitations No use limitations Geen gebruiksbeperkingen https://creativecommons.org/licenses/by/4.0/deed.nl https://creativecommons.org/licenses/by/4.0/deed.nl climatologyMeteorologyAtmosphere -14.394 -14.394 -7.969 -7.969 2016-09-03 2017-09-10 NetCDF NetCDF 3 Koninklijk Nederlands Meteorologisch Instituut (KNMI) Koninklijk Nederlands Meteorologisch Instituut (KNMI) Koninklijk Nederlands Meteorologisch Instituut (KNMI) opendata@knmi.nl opendata@knmi.nl 50 https://dataplatform.knmi.nl/catalog/datasets/index.html?x-dataset=cesar_uvlidar_ascension_island_attenuated_backscatter&x-dataset-version=1.0 landingpage KNMI Data Platform KNMI Data Platform The data were acquired during one month in 2016 and one month in 2017: from 2016-09-03T11:36:15 to 2016-09-29T08:19:04 and 2017-08-15T17:30:11 to 2017-09-10T07:29:47 The data were acquired during one month in 2016 and one month in 2017: from 2016-09-03T11:36:15 to 2016-09-29T08:19:04 and 2017-08-15T17:30:11 to 2017-09-10T07:29:47 De metingen zijn verricht gedurende één maand in 2016 en één maand in 2017 van 2016-09-03T11:36:15 tot 2016-09-29T08:19:04 en 2017-08-15T17:30:11 tot 2017-09-10T07:29:47 Converted from the high-resolution Leosphere ASCII files from the CESAR (Cabauw, The Netherlands) Leosphere ALS-450 lidar, relocated to WideAwake airfield, Ascension Island. Converted from the high-resolution Leosphere ASCII files from the CESAR (Cabauw, The Netherlands) Leosphere ALS-450 lidar, relocated to WideAwake airfield, Ascension Island. Geconverteerd van de hoge-resolutie Leosphere ALS-450 lidar textbestanden (normaal CESAR, Cabauw, NL), gestationeerd op WadeAwake airfield, Ascension Island.