Aerosol particles are ubiquitous in the atmosphere.

They exert significant effects on the Earth’s climate.

First, they absorb and scatter incoming solar radiation (direct radiative forcing). Second, they act as cloud condensation nuclei (CCN), influencing the cloud microphysical and optical properties as well as their life-time and precipitation (indirect effect).

Due to the high variability of the natural as well as the anthropogenic aerosol in the troposphere, the corresponding radiative effects vary highly in time and space.

The latest report from IPCC has shown that atmospheric aerosols represent the largest uncertainty in understanding and giving future predictions of the Earth’s climate. Aerosol number concentration varies greatly in both, time and space.

Meanwhile, the existing in-situ aerosol observation system is patchy with respect to global coverage, very little information are available especially remote environment and in free troposphere.

pressure, instrument internal, hPa

temperature, instrument internal, K

aerosol_number_concentration, 1/cm3

aerosol_number_concentration_statistics, percentile; 15.87, 1/cm3

aerosol_number_concentration_statistics, percentile; 84.13, 1/cm3

numflag, no unit, max 3 flags (of 3 digits each) coded into decimals

Data definition: EBAS_1

Set type code: TU

Regime: IMG

Station code: IT0009R

Platform code: IT0009S

Startdate: 20080101

Timeref: 00_00

Revision date: 20100729

Component: CPC-lev2

Unit: 1/cm3

Matrix: aerosol

Period code: 1y

Resolution code: 1h

Laboratory code: IT06L

Instrument type: cpc

Instrument name: cpc3772_snum70902011

Method ref: IT06L_CPC3772_met

Ext. lab. code: NA

Ext. meth. ref: NA

Add. qualifier: NA

File name:

File name ext:

start_time end_time pressure

aerosol_number_concentration

aerosol_number_concentration_statistics