Transmitted irradiance through sea ice from radiation station 2020R21
Solar radiation over and under sea ice was measured by radiation station 2020R21, an autonomous platform, installed on a drifting melt pond in the Arctic Ocean during MOSAiC (Leg 5) 2019/20. The resulting time series describes radiation measurements as a function of place and time between 27 August 2020 and 14 November 2020 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. Along with the radiation measurements, this autonomous platform consisted of a lightchain, which measured counts of red, green and blue light at 49 positions at hourly intervals. In addition, the evolution of snow height is measured at hourly intervals. 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 .
- Buoy
- Current sea ice map...
- DATE TIME
- Irradiance
- LATITUDE
- LONGITUDE
- Multidisciplinary d...
- PS122 5
- Polarstern
- Quality flag
- Radiation Station
- Sea Ice Physics AWI...
- Spectral irradiance
- autonomous platform
- buoy
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- drift
- light chain
- radiation station
- snow depth
- solar radiation
- sun elevation
| Identifier | |
|---|---|
| DOI | https://doi.org/10.1594/PANGAEA.948839 |
| Related Identifier | IsPartOf https://doi.org/10.1594/PANGAEA.948838 |
| Metadata Access | https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.948839 |
| Provenance | |
|---|---|
| Creator | Nicolaus, Marcel  ; Hoppmann, Mario ; Tao, Ran ; Katlein, Christian |
| Publisher | PANGAEA |
| Contributor | Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven |
| Publication Year | 2023 |
| Funding Reference | Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven https://doi.org/10.13039/501100003207 Crossref Funder ID AFMOSAiC-1_00 Multidisciplinary drifting Observatory for the Study of Arctic Climate; Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven https://doi.org/10.13039/501100003207 Crossref Funder ID AWI_PS122_00 Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC |
| Rights | Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/ |
| OpenAccess | true |
| Representation | |
|---|---|
| Resource Type | Dataset |
| Format | text/tab-separated-values |
| Size | 1194480 data points |
| Discipline | Natural Sciences; Physics |
| Spatial Coverage | (95.798W, 87.950S, 120.875E, 89.209N); Arctic Ocean |
| Temporal Coverage Begin | 2020-08-27T11:02:08Z |
| Temporal Coverage End | 2020-11-14T15:04:05Z |