KNMI UV-polarisation lidar Ascension Island initiative (ASCII) campaign data

KNMI UV-polarisation lidar Ascension Island initiative (ASCII) campaign data

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.

Datum (publicatie) Date (Publication): 2023-01-26

Edition: 1.0

Identifier Citation identifier: urn:xkdc:ds:nl.knmi::cesar_uvlidar_ascension_island_attenuated_backscatter/1.0/

Status Status: compleet

Completed

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Koninklijk Nederlands Meteorologisch Instituut (KNMI) Koninklijk Nederlands Meteorologisch Instituut (KNMI)		opendata@knmi.nl	contactpunt Point of contact

Herzieningsfrequentie Maintenance and update frequency: niet gepland

Not planned

DG Discovery Properties Vocabulary 1.0

Climate

Klimaat
laser

laser
cloud

wolken
aerosol

aerosol
lidar

lidar

Keywords

Open data

Open data

Use limitation Use limitation: No use limitations

Geen gebruiksbeperkingen

(Juridische) toegangsrestrictie Access constraints: anders

Other restrictions

Other constraints: https://creativecommons.org/licenses/by/4.0/deed.nl

Veiligheidsrestricties Classification: vrij toegankelijk

Unclassified

Taal Language: English

Karakterset Character set: utf8

UTF8

Onderwerp Topic category

klimatologie, meteorologie atmosfeer

Climatology, meteorology, atmosphere

Begin date: 2016-09-03

End date: 2017-09-10

Referentiesysteem identifier Reference system identifier: http://www.opengis.net/def/crs/EPSG/0/4326

Distribution format

Name	Version
NetCDF	3

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
Koninklijk Nederlands Meteorologisch Instituut (KNMI) Koninklijk Nederlands Meteorologisch Instituut (KNMI)		opendata@knmi.nl	contactpunt Point of contact

Bestands grootte Transfer size: 50

OnLine resource

Protocol	Linkage	Name
landingpage	https://dataplatform.knmi.nl/catalog/datasets/index.html?x-dataset=cesar_uvlidar_ascension_island_attenuated_backscatter&x-dataset-version=1.0	KNMI Data Platform

Niveau kwaliteitsbeschrijving Hierarchy level: dataset

Dataset

Kwantitatieve resultaten

Quantitative result

Waarde Value: 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

Statement Statement: 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.

Metadata

Metadata ID File identifier: 7a38038e-9e1a-11ed-b02e-52de3d22f2a7 XML

Taal Metadata language: English

Karakterset Character set: utf8

UTF8

Hierarchisch niveau Hierarchy level: dataset

Dataset

Metadata datum Date stamp: 2025-05-02T09:29:47.712Z

Metadata standard name: ISO 19115

Metadata standard version: ISO 19115:2003 NL Kernset 1.3 KNMI 2.1.0

Metadata author

Organisation name	Individual name	Electronic mail address	Role
Koninklijk Nederlands Meteorologisch Instituut (KNMI) Koninklijk Nederlands Meteorologisch Instituut (KNMI)		opendata@knmi.nl	contactpunt Point of contact

Other language

Language	Character encoding
Nederlands; Vlaams Dutch; Flemish
Engels English	utf8 UTF8

Overviews

Spatial extent

Provided by

Associated resources

Not available

Simple

Kwantitatieve resultaten Quantitative result