Published August 22, 2023 | Version v1
Dataset Open

Data and code for "Long-term aerosol particle depolarization ratio measurements with Halo Doppler lidar" by Viet Le et al. (2023)

  • 1. Finnish Meteorological Institute

Description

Processing code and datasets used for creating the figures in "Long-term aerosol particle depolarization ratio measurements with Halo Doppler lidar".

Table of contents

DopplerLidarData_location.tar.gz: 4 archive files (in tar.gzipped format) containing Halo Doppler lidar, one for each location, with each archive file containing daily files which are in the self-describing netCDF format. Note that the archive for Hyytiälä contains Doppler lidar data from 2 instruments operated at different times. The instrument serial number (id) is present in the netCDF file name and in the global attributes within in each netCDF file. WeatherStationData.tar.gz: archive file (in tar.gzipped format) containing weather station data for each location in 6-monthly CSV files with the following columns (in Finnish) Vuosi,Kk,Pv,Klo,Aikavyöhyke,Pilvien määrä (1/8),Suhteellinen kosteus (%),Sateen intensiteetti (mm/h),Ilman lämpötila (degC) which translate in English as Year, Month, Day, Time, Timezone, Cloud cover (oktas), Relative humidity (%), Precipitation intensity (mm hr-1), Air temperature (degrees Celsius) HaloDopplerLidar-AerosolIdentification-main.zip: archive file (in zip format) containing the version of the "Halo Doppler lidar Aerosol Identification Algorithm" processing code used to generate the products in the manuscript. The latest version of this code is also available in Github (https://github.com/vietle94/HaloDopplerLidar-AerosolIdentification).

Files

HaloDopplerLidar-AerosolIdentification-main.zip

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Additional details

Identifiers

URL
https://etsin.fairdata.fi/dataset/45ae3cb7-3f23-408c-9a00-30497fd9074f
B2SHARE Legacy Record ID
f82603e69cea49b888f94d0e8a85e787

Instruments

Halo Doppler lidar (Streamline, Streamline XR and Streamline Pro versions)
Halo Photonics (Other)

Details

Expansion error: Instrument is not eligible for expansion

FMI metadata

Link to external data location (URL)
https://manuscript-data.lake.fmi.fi/Le_etal_2024/DopplerLidarData_Hyytiala.tar.gz, https://manuscript-data.lake.fmi.fi/Le_etal_2024/DopplerLidarData_Uto.tar.gz, https://manuscript-data.lake.fmi.fi/Le_etal_2024/DopplerLidarData_Sodankyla.tar.gz, https://manuscript-data.lake.fmi.fi/Le_etal_2024/DopplerLidarData_Vehmasmaki.tar.gz
Process step
Weather station data. No additional quality control or processing applied , Doppler lidar data. Background correction applied (Vakkari et al., 2019)
Parameter
Parameter name : Vuosi
Parameter unit : Year
Parameter description : Year
Parameter name : kk
Parameter unit : Month
Parameter description : Month
Parameter name : Pv
Parameter unit : Day
Parameter description : Day
Parameter name : Klo
Parameter unit : hours:minutes
Parameter description : Time
Parameter name : Aikavyöhyke,
Parameter description : Timezone
Parameter name : Pilvien määrä
Parameter unit : okta
Parameter description : Cloud cover
Parameter name : Suhteellinen kosteus
Parameter unit : percent
Parameter description : Relative humidity
Parameter name : Sateen intensiteetti
Parameter unit : mm hr-1
Parameter description : Precipitation intensity
Parameter name : Ilman lämpötila
Parameter unit : degrees Celsius
Parameter description : Air temperature
Parameter name : time
Parameter unit : hours since 2017-10-09 00:00:00 +0:00
Parameter description : Decimal hours UTC
Parameter name : time_averaged
Parameter unit : hours since 2017-10-09 00:00:00 +0:00
Parameter description : Decimal hours UTC
Parameter name : range
Parameter unit : m
Parameter description : Height above ground
Parameter name : beta_raw
Parameter unit : m-1 sr-1
Parameter description : Attenuated backscatter (raw)
Parameter name : v_raw
Parameter unit : m s-1
Parameter description : Radial velocity (positive away from lidar)
Parameter name : v_error
Parameter unit : m s-1
Parameter description : Uncertainty in velocity estimate
Parameter name : co_signal
Parameter description : Co-channel signal (raw)
Parameter name : cross_signal
Parameter description : Cross-channel signal (raw)
Parameter name : depo_raw
Parameter description : Depolarization ratio (raw)
Parameter name : co_signal_averaged
Parameter description : Co-channel signal (raw), averaged
Parameter name : cross_signal_averaged
Parameter description : Cross-channel signal (raw), averaged
Parameter name : depo_averaged_raw
Parameter description : Depolarization ratio (raw), averaged
Topic category
climatologyMeteorologyAtmosphere

Temporal Coverage

Ranges:

Start date: 2015-12-31
End date: 2019-12-31

Locations

Utö, Finland Point:

Vehmasmäki, Finland Point:

Hyytiälä, Finland Point:

Sodankylä, Finland Point: