Published May 2, 2025
| Version
v1
Dataset
Open
LAS3R field campaign, Aboa, Antarctica, 2022-23: Snow pit, AWS5, albedo, RGB drone mosaics, surface roughness and elevation
Creators
- 1. Finnish Meteorological Institute
Contributors
Data collectors:
Project leader:
Description
Measurements were conducted during Finnish Antarctic Research Programme (FINNARP) 2022 expedition to Finnish Aboa station located in Dronning Maud Land in western Antarctica. The field measurements were made weekly at AWS5 weather station (−73.105034S, −13.162370W), approximately 10 km from Aboa station, and at different satellite overpass locations on pre-checked GPS routes typically 5-35 km from the station. In total 8 measurement occasions were made at AWS5 site and 16 measurements at different IceSat-2 and CryoSat-2 satellite overpass locations between November 2022 and February 2023. Measurements included snow surface roughness observed with a drone-based laser scanner and a backpack-based laser scanner, radiation observations on the ground, radiation observations on a drone, snow pit measurements, and meteorological measurement at the weather station.
This data set includes data from the snow pits (date, time, location, coordinates, stratigraphy, hardness, wetness, grain size, grain type, density, temperature, liquid water content, specific surface area, depth of measurements), data from the automatic weather station (AWS5) maintained by FINNARP (date and time, air temperature, distance between sensor and snow surface, wind speed, wind direction, relative humidity, albedo, long- and shortwave incoming radiation, long- and shortwave outgoing radiation, long- and shortwave net radiation), albedo data from Eppley and CM14 radiation stations (shortwave broadband albedo, up- and downwelling shortwave radiative flux, solar zenith angle, solar azimuth angle, coordinates), albedo data from drone (shortwave broadband albedo, downwelling shortwave radiative flux, solar zenith angle, coordinates), RGB drone image mosaics, and surface roughness and elevation derived from the laser scanner data.
Hyperspectral camera data is available on request.
The data set is related to manuscript on "Measurements on physical snow properties in Dronning Maud Land, Antarctica".
Files
IceCube SSA.zip
Files
(1.8 GB)
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Checksum: md5:aee3aded2b28fbe3da8257c4fa90873a
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1.5 GB |
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Checksum: md5:4486297a198c6752faa9ea70e93c0008
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203.2 MB |
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Additional details
Identifiers
- URL
- https://etsin.fairdata.fi/dataset/9fd7ec6a-22e9-4195-95b6-be41f40a734e
- B2SHARE Legacy Record ID
- 900cf0c74c1c45efb396b910a841bb3c
Funding
- FINNARP
- Research Council of Finland
Instruments
- Hemispherical near-infrared reflectance from snow sample surface measured with IceCube instrument (manufacturer A2 Photonic Sensors) and converted to specific surface area with dedicated software.
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DetailsExpansion error: Instrument is not eligible for expansion
- Liquid water content and density measured with SnowFork instrument (manufacturer Insinööritoimisto Toikka)
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DetailsExpansion error: Instrument is not eligible for expansion
- Density measured with 3 cm high rectangular density cutter which volume is 100 cm^3
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DetailsExpansion error: Instrument is not eligible for expansion
- Stratigraphy measurement includes layer depth, hardness with hand scale, wetness with hand scale, grain size, and grain type
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DetailsExpansion error: Instrument is not eligible for expansion
- Temperature measured with HI98501 digital thermometer (manufacturer Hanna Instruments Ltd)
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DetailsExpansion error: Instrument is not eligible for expansion
- Grain size and type estimated from macrophotos taken against SEAR crystal card 1-mm reference grid
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DetailsExpansion error: Instrument is not eligible for expansion
- Sensor distance to the snow surface is measured with the SR50A sensor (Campbell Scientific)
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- Air temperature and relative humidity are measured using the HMP110 sensor (Vaisala)
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DetailsExpansion error: Instrument is not eligible for expansion
- Wind speed is measured using the Heavy Duty Wind Monitor HD-Alpine Model 05108-45 sensor (R&M Young)
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DetailsExpansion error: Instrument is not eligible for expansion
- Surface albedo and short- and longwave incoming and outgoing radiation are determined via upward and downward facing CNR4 pyranometers (Kipp & Zonen)
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DetailsExpansion error: Instrument is not eligible for expansion
- Shortwave broadband albedo is measured with CM14 radiation station (Kipp & Zonen)
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DetailsExpansion error: Instrument is not eligible for expansion
- Shortwave broadband albedo is measured with Eppley radiation station
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DetailsExpansion error: Instrument is not eligible for expansion
- Mavic 2 Pro (DJI) original camera is used for RGB images
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- Drone based albedo is measured with CM11 pyranometer (Kipp & Zonen)
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- Surface roughness and elevation are derived from Riegl VUX-120 laser scanner data
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DetailsExpansion error: Instrument is not eligible for expansion
FMI metadata
- Process step
- Lineage
- Original version, no quality checked
- Parameter
- Supplemental information
- Snow surface is 0 cm in the snow pit measurements
- Topic category
- environment
Parameter name
:
Date and time of AWS5 measurements
Parameter unit
:
yyyy-mm-dd hh:mm:ss
Parameter description
:
TIMESTAMP
Parameter name
:
Distance between sensor and snow surface
Parameter unit
:
m
Parameter description
:
TCDT
Parameter name
:
Wind speed
Parameter unit
:
m/s
Parameter description
:
WS_ms_S_WVT
Parameter name
:
Wind direction
Parameter unit
:
degree
Parameter description
:
WindDir_D1_WVT
Parameter name
:
Relative humidity
Parameter unit
:
%
Parameter description
:
RH
Parameter name
:
Air temperature
Parameter unit
:
Degree C
Parameter description
:
AirTC_Avg
Parameter name
:
Albedo (AWS5)
Parameter unit
:
W/m^2
Parameter description
:
Albedo_Avg
Parameter name
:
Longwave radiation incoming (AWS5)
Parameter unit
:
W/m^2
Parameter description
:
LWUpperCo_Avg
Parameter name
:
Longwave radiation outgoing (AWS5)
Parameter unit
:
W/m^2
Parameter description
:
LWLowerCo_Avg
Parameter name
:
Shortwave radiation incoming (AWS5)
Parameter unit
:
W/m^2
Parameter description
:
SWUpper_Avg
Parameter name
:
Shortwave radiation outgoing (AWS5)
Parameter unit
:
W/m^2
Parameter description
:
SWLower_Avg
Parameter name
:
Net shortwave radiation (AWS5)
Parameter unit
:
W/m^2
Parameter description
:
RsNet_Avg
Parameter name
:
Net longwave radiation (AWS5)
Parameter unit
:
W/m^2
Parameter description
:
RlNet_Avg
Parameter name
:
Date of snow pit measurement
Parameter unit
:
dd.mm.yyyy
Parameter description
:
Date
Parameter name
:
Time of snow pit measurement
Parameter unit
:
hh:mm
Parameter description
:
Time
Parameter name
:
Coordinates of snow pit measurement
Parameter unit
:
degrees
Parameter description
:
GPS
Parameter name
:
Location of snow pit measurement. Pit I refers to snow pit close to radiation station and pits II, III, IV, V, and VI refers to surface measurements.
Parameter unit
:
-
Parameter description
:
Point
Parameter name
:
Wetness
Parameter unit
:
Hand scale
Parameter description
:
Wetness
Parameter name
:
Hardness
Parameter unit
:
Hand scale
Parameter description
:
Hardness
Parameter name
:
Grain size
Parameter unit
:
mm
Parameter description
:
Size
Parameter name
:
Grain type according to international snow classification
Parameter unit
:
-
Parameter description
:
Type
Parameter name
:
Weight of density sampler
Parameter unit
:
g
Parameter description
:
Weight
Parameter name
:
Weight of empty density sampler
Parameter unit
:
g
Parameter description
:
Empty sampler weight
Parameter name
:
Density
Parameter unit
:
g/cm^3
Parameter description
:
Density
Parameter name
:
Liquid water content
Parameter unit
:
%
Parameter description
:
LWC
Parameter name
:
Snow depth for temperature, SnowFork liquid water content and SnowFork density
Parameter unit
:
cm
Parameter description
:
SD
Parameter name
:
Snow depth at top of density sample or snow layer interface in stratigraphy
Parameter unit
:
cm
Parameter description
:
SD top
Parameter name
:
Snow depth at bottom of density sample or snow layer interface in stratigraphy
Parameter unit
:
cm
Parameter description
:
SD bottom
Parameter name
:
Temperature (snow and air)
Parameter unit
:
degree C
Parameter description
:
Temperature
Parameter name
:
Post-processed grain size
Parameter unit
:
mm
Parameter description
:
Size (post)
Parameter name
:
Specific surface area
Parameter unit
:
m^2/kg
Parameter description
:
Specific surface area (SSA)
Parameter name
:
Snow depth of SSA sample top level
Parameter unit
:
cm
Parameter description
:
Depth
Parameter name
:
Downwelling (incident) shortwave broadband radiative flux (Eppley and drone)
Parameter unit
:
W/m^2
Parameter description
:
PSP100up_corr_Wm-2
Parameter name
:
Upwelling (reflected) shortwave broadband radiative flux (Eppley)
Parameter unit
:
W/m^2
Parameter description
:
PSP099dn_corr_Wm-2
Parameter name
:
Shortwave broadband blue-sky albedo (Eppley and CM14)
Parameter unit
:
W/m^2
Parameter description
:
calibrated_albedo
Parameter name
:
Seconds since 2022-11-20 00:00:00 (Eppley, CM14 and drone)
Parameter unit
:
s
Parameter description
:
Time
Parameter name
:
Solar Zenith Angle (SZA) of radiation measurement (Eppley, CM14 and drone)
Parameter unit
:
Degrees
Parameter description
:
SZA
Parameter name
:
Downwelling shortwave broadband radiative flux (CM14 and drone)
Parameter unit
:
W/m^2
Parameter description
:
SWD
Parameter name
:
Upwelling shortwave broadband radiative flux (CM14)
Parameter unit
:
W/m^2
Parameter description
:
SWU
Parameter name
:
Solar Azimuth Angle of measurement (CM14)
Parameter unit
:
Degrees
Parameter description
:
SAZI
Parameter name
:
Latitude of CM14 measurement
Parameter unit
:
degrees_north
Parameter description
:
LatitudeN
Parameter name
:
Longitude of CM14 measurement
Parameter unit
:
degrees_east
Parameter description
:
LongitudeE
Parameter name
:
Shortwave broadband blue-sky surface albedo, combination of drone-measured reflected flux and ground-measured incident flux
Parameter unit
:
-
Parameter description
:
drone_albedo
Parameter name
:
Surface elevation of snow surface (bucket-resampled average), from the Riegl VUX-120 point cloud
Parameter unit
:
m
Parameter description
:
resampled_z_mn_m
Parameter name
:
RMS slope (beta) of snow surface, as in Manninen et al. (2021)
Parameter unit
:
radian
Parameter description
:
resampled_beta_mean_rad_by_line_RMSheight
Parameter name
:
latitude of drone measurements
Parameter unit
:
degrees_north
Parameter description
:
y
Parameter name
:
longitude of drone measurements
Parameter unit
:
degrees_east
Parameter description
:
x
Temporal Coverage
Ranges:
Start date: 2022-10-31
End date: 2023-01-31
End date: 2023-01-31