http://bolin.su.se/data/zeppelin-aerosol-light-scattering-1
Dominic Heslin-Rees, Maria Burgos, Hans-Christen Hansson, Radovan Krejci, Johan Ström, Peter Tunved, Paul Zieger
Aerosol light scattering properties at Zeppelin Observatory, Svalbard, 1999 – 2016, with back trajectory analysis parameters
Bolin Centre Database
2020
Datafile
Atmosphere
Aerosols
Light scattering
Ångström exponent
Long-term trend
Sea ice
Back trajectory
Arctic
Zeppelin
Svalbard
Earth science > Atmosphere > Aerosols > Aerosol optical depth/thickness > Angstrom exponent
Dominic Heslin-Rees
2020-10-05T09:33:54+00:00
English
1
This dataset is provided as one CSV file (size: 8.71 MB, 49031 rows, 31 columns). Each row represents an observation identified by the time stamp in the format YYYY-MM-DD hh:mm:ss. Several parameters report values for the planetary boundary layer (PBL).
Details about the parameters by column label:
- scat550: volume scattering coefficient in air due to dried aerosol particles, in [Mm-1]
- bscat550: volume backwards scattering coefficient in air due to dried aerosol particles, in [Mm-1]
- ratio_550: backscattering_ratio, unitless
- AE_450: Ångström exponent of ambient aerosol in air, unitless
- RH_int: the percentage of relative humidity at the sample outlet, in [%]
- rH: the percentage of relative humidity at Zeppelin mountain (Ny-Ålesund), in [%]
- average_alt_in_PBL: mean altitude of air parcel along trajectory and within PBL, in [m]
- average_lat_in_PBL: mean latitude of air parcel along trajectory and within PBL, in [°N]
- average_lon_in_PBL: mean longitude of air parcel along trajectory and within PBL, in [°E]
- average_wind_speed_PBL: mean wind speed of air parcel along trajectory and within PBL, in [ms-1]
- distance_in_PBL: mean distance traversed by air parcel along trajectory and within PBL, in [m]
- mixed_layer_height_in_PBL: mean height of the PBL above the surface, in [m]
- position_in_PBL: region of origin based on average back trajectory coordinates namely NE, SE, SW, NW
- position_lon_in_PBL: average coordinate of back trajectory relative to ZEP at the North pole, in [°E]
- rainfall_in_PBL: accumulated rainfall along the back trajectory whilst in PBL, in [mm]
- relative_humidity_in_PBL: mean relative humidity of air parcel along trajectory and within PBL, in [%]
- temperature_in_PBL: mean temperature of air parcel along trajectory and within PBL, in [°C]
- time_in_PBL: time back trajectory spends within the PBL, in [h]
- ice_time: time back trajectory spends within the PBL and over sea ice concentrations greater than 0.85, in [h]
- land_time: time back trajectory spends within the PBL and continental surfaces, in [h]
- ocean_time: time back trajectory spends within the PBL and over sea ice concentrations less than 0.85, in [h]
- ice_time_fixed: time back trajectory spends within the PBL and over sea ice concentrations greater than 0.85 from 1999, in [h]
- land_time_fixed: time back trajectory spends within the PBL and continental surfaces, in [h]
- ocean_time_fixed: time back trajectory spends within the PBL and over sea ice concentrations less than 0.85 from 1999, in [h]
- ordinal: number of days since 1999-01-01
- month_num: month of the year given as a number
- month_abb: month of the year given as an abbreviation
- year_num: year
- season_abb: season of the year given as an abbreviation (i.e. DJF, MAM, JJA, SON)
- year_month_num: number of months since January 1999
- season_ordinal: number of seasons since winter (DJF) 1999
The dataset also includes a jpg image file showing the source attribution of air masses using a
back trajectory arriving at the Zeppelin Observatory.
Dominic Heslin-Rees performed data analysis. Peter Tunved performed trajectory calculations. Hans-Christen Hansson and Johan Ström were part of the start up and operation of the long-term measurements.