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Long-term CCNC measurements at the central European ACTRIS research station Melpitz, Germany, 2012-2016

Description: Atmospheric aerosol measurements were conducted at the Melpitz observatory, Germany. The data was collected during 2012 to 2016, measured by Droplet Measurement Technologies Cloud Condensation Nucleus Counter (DMT-CCNC).

Global identifier: 

Doi(
    "10.1594/PANGAEA.938213",
)

Types: 
Measurements {
    domain: Unspecified,
    station: None,
    measured_variables: [
        "DATE/TIME",
        "Supersaturation",
        "Cloud condensation nuclei",
        "Cloud condensation nuclei",
        "Condensation nuclei",
        "Condensation nuclei",
        "Condensation nuclei",
        "Hygroscopicity",
        "Critical diameter",
        "Parameter",
        "Parameter",
        "Parameter",
        "Number",
        "Quotient",
        "Quotient",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
        "Aerosol number concentration",
    ],
    methods: [
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
        "Cloud Condensation Nuclei Counter",
    ],
}
Dataset

Comment: Columns #9-12 contain the fit parameters "D_c", "a", "b" and "sigma_s" of following sigmoid function, where "AF" means activated fraction of aerosol particles, "a" and "b" are the lower and upper limits of the sigmoid function, "D_c" is the critical diameter of dry particles, and "sigma_s" means the shape of the sigmoid function: AF = a + b / ( 1 + exp(-(D-D_c)/sigma_s) ) Column #15: The ratio "(D75-D25)/D50" represents the degree of external mixing of aerosol particles. The definations of D75, D50, D25, DX are the diameter (D) at which 75%, 50%, 25, X% of particles are activated at the given supersaturation condition. See Jurányi et al. (2013, doi:10.5194/acp-13-6431-2013) for details. Columns #16-61 contain the particle size distribution for 46 size bins. The mid-diameter of each bin (i.e. the geometric mean of the bin interval) is given in the Parameter Comment.

Origins: /Wissenschaft/PANGAEA

Tags: Atmosphärisches Aerosol ? Aerosol ? Messtechnik ? Daten ? Aerosol chemistry ? Cloud Concensation Nuclei ? Particle Number Size Distribution (PNSD) ?

Bounding boxes: 12.93° .. 12.93° x 51.53° .. 51.53°

License: cc-by/4.0

Language: Englisch/English

Organisations

Persons

Issued: 2021-11-15

Modified: 2021-11-16

Time ranges: 2012-08-17 - 2016-10-20

Resources

Status

Quality score

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