Transmitted irradiance through sea ice from radiation station 2018R1


Solar radiation over and under sea ice was measured by radiation station 2018R1, an autonomous platform, installed on drifting First-Year-Ice (FYI) in the Weddell Sea during PS111_ANT. The resulting time series describes radiation measurements as a function of place and time between 26 February 2018 and 16 November 2018 in sample intervals of 1 hour. The radiation measurements have been performed with spectral radiometers. All data are given in full spectral resolution interpolated to 1.0 nm, and integrated over the entire wavelength range (broadband, total: 320 to 950 nm). Two sensors, solar irradiance and upward reflected solar irradiance, were mounted on a on a platform about 1 m above the sea ice surface. The third sensor was mounted 0.5 m underneath the sea ice measuring the downward transmitted irradiance. All times are given in UTC.

The data set has been processed and contains quality flags for different kinds for erroneous data. Flag values are the sum of individual error codes. The value of 0 refers to no error. Quality flag, sun: If the suns position is close to the horizon, the radiometers measure a very noisy signal. Radiometer measurements and variables which are computed from them are flagged +1 if the sun elevation is below 10 degrees; +2 if the broad band albedo exceeds the threshold 1.05 .

Related Identifier IsPartOf
Metadata Access
Creator Nicolaus, Marcel ORCID logo; Arndt, Stefanie ORCID logo; Katlein, Christian ORCID logo
Publisher PANGAEA
Contributor Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
Publication Year 2024
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 2171090 data points
Discipline Natural Sciences; Physics
Spatial Coverage (-41.344W, -74.548S, -36.901E, -73.227N)
Temporal Coverage Begin 2018-02-26T22:01:54Z
Temporal Coverage End 2018-11-16T10:02:16Z