Nous contacterDataset Edition
| Présentation générale | |||
|---|---|---|---|
| Nom du jeu de données | AEROCLO-sA F20 Cloud Droplet Probe CDP | ||
| DOI | 10.6096/AEROCLO.1762 | ||
| Créé le | 2018-04-17 | ||
| Projet(s) | AEROCLO | ||
| Date de début (yyyy-mm-dd) | 2017-09-05 | Date de fin (yyyy-mm-dd) | 2017-09-12 |
| Contact(s) | |||
| Accès aux données |  Dataset as provided by the Principal Investigator | ||
| History | UPDATE2019-02-19 ISSUE2018-04-18 | ||
| Description du jeu de données | |||
| Résumé | Measurements obtained with a Cloud Droplet Probe (CDP) which measure the forward light scattering of hydrometeors. It is calibrated for measuring water droplet in the range 2 to 50 microns. | ||
| Description de l'instrument | |||
| Type d'instrument | In Situ/Laboratory Instruments > Samplers | ||
| Fabricant | DMT - http://www.dropletmeasurement.com | ||
| Modèle | CDP2 | ||
| Observation frequency | 1Hz | ||
| Information géographique | |||
| Site 1 | |||
| Mot-clé de localistion | CONTINENT > AFRICA > SOUTHERN AFRICA | ||
| Site | Falcon 20 Safire | ||
| Type de plateforme | AIRCRAFT > F-FALCON 20 | ||
| Instrument environment | The computer controlling the in situ probes on the Falcon-20 experienced a time lag which was only noticed prior to the last two flights, fs170014 and fs170015. The correlation between the vertical profiles of aerosol extinction at 532 nm from the lidar and the merged size distribution from the in situ probes was used to determine the time lag during each flight. This was done by applying a series of time lags between 0s and 160s and observing the maximum correlation. A clear trend in the time lag becoming larger from the beginning of the campaign was observed. The following table indicates the time lag that yielded the maximum coefficient of determination and the value that has been applied to the in situ data. Flight: Time lag (s) fs170006: 90 fs170007 : NA fs170008 : 90 fs170009 : 90 fs170010 : 100 fs170011: 100 fs170012: 125 fs170013: 130 fs170014: 0 fs170015: 0 | ||
| Paramètres mesurés | |||
| Paramètre mesuré 1 | |||
| Nom du paramètre | Droplet Concentration/Size | ||
| Mot-clé du paramètre | Atmosphere > Clouds > Cloud Microphysics | ||
| Unité | particles/cm³ | ||
| Méthodologie d'acquisition et qualité | PADS acquisition. Size bins are not corrected to take into account the ambient refractive index The computer controlling the in situ probes on the Falcon-20 experienced a time lag which was only noticed prior to the last two flights, fs170014 and fs170015. The correlation between the vertical profiles of aerosol extinction at 532 nm from the lidar and the merged size distribution from the in situ probes was used to determine the time lag during each flight. This was done by applying a series of time lags between 0s and 160s and observing the maximum correlation. A clear trend in the time lag becoming larger from the beginning of the campaign was observed. The following table indicates the time lag that yielded the maximum coefficient of determination and the value that has been applied to the in situ data. Flight: Time lag (s) fs170006: 90 fs170007 : NA fs170008 : 90 fs170009 : 90 fs170010 : 100 fs170011: 100 fs170012: 125 fs170013: 130 fs170014: 0 fs170015: 0 | ||
| Date de début (yyyy-mm-dd) | 2017-09-05 | Date de fin (yyyy-mm-dd) | 2017-09-12 |
| Précision du capteur / Incertitude | |||
| Derived parameter 1 | |||
| Nom du paramètre | Total Droplet Concentration | ||
| Mot-clé du paramètre | Atmosphere > Clouds > Cloud Microphysics | ||
| Unité | particles/cm³ | ||
| Date de début (yyyy-mm-dd) | Date de fin (yyyy-mm-dd) | ||
| Précision du capteur / Incertitude | |||
| Information sur l'utilisation des données | |||
| Conditions d'utilisation des données | This work was supported by the French National Research Agency under grant agreement n° ANR-15-CE01-0014-01, the French national programme LEFE/INSU, the Programme national de Télédetection Spatiale (PNTS, http://www.insu.cnrs.fr/pnts), grants n° PNTS-2016-02 and PNTS-2016-14, the French National Agency for Space Studies (CNES), and the South African National Research Foundation (NRF) under grant UID 105958. The research leading to these results has received funding from the European Union's 7th Framework Programme (FP7/2014-2018) under EUFAR2 contract n°312609". Airborne data was obtained using the F20 Atmospheric Research Aircraft managed by Safire, which is a joint facility of the CNRS, Météo-France and the CNES. | ||
| Charte d'accès aux données | AEROCLO data policy | ||
| Format des fichiers de données | |||
