Nicolaus, Marcel; Anhaus, Philipp; Hoppmann, Mario; Tao, Ran; Katlein, Christian (2024): Lightchain measurements from radiation station 2020R10 [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.949126, In: Nicolaus, M et al. (2024): Spectral radiation fluxes, albedo and transmittance from autonomous measurement from Radiation Station 2020R10, deployed during MOSAiC 2019/20 [dataset bundled publication]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.949124
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Abstract:
Solar radiation over and under sea ice was measured by radiation station 2020R10, an autonomous platform, installed on drifting First-Year-Ice (FYI) in the Arctic Ocean during MOSAiC (Leg 2) 2019/20. The resulting time series describes radiation measurements as a function of place and time between 08 March 2020 and 21 July 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.
Further details:
Project(s):
Current sea ice maps for Arctic and Antarctic (meereisportal.de)
Sea Ice Physics @ AWI (AWI_SeaIce)
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AFMOSAiC-1_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS122_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC
Coverage:
Median Latitude: 83.668030 * Median Longitude: 11.136333 * South-bound Latitude: 80.765500 * West-bound Longitude: -0.127900 * North-bound Latitude: 88.004300 * East-bound Longitude: 24.995400
Date/Time Start: 2020-03-08T15:03:39 * Date/Time End: 2020-07-21T09:02:11
Event(s):
PS122/3_28-46 (2020R10) * Latitude Start: 88.005217 * Longitude Start: 24.781183 * Latitude End: 80.758300 * Longitude End: -0.100300 * Date/Time Start: 2020-03-08T14:47:00 * Date/Time End: 2020-07-21T10:00:00 * Sensor URI: sensor.awi.de * Location: Arctic Ocean * Campaign: PS122/3 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Radiation Station (RAD_S) * Comment: deployed on leveled First-Year-Ice between end of ROV optics grid (Transponder 2) and Fort Ridge
Comment:
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, position: The geographic position is flagged +1 if the drift velocity, as derived from the GPS longitude and latitude, exceeds a threshold of 10 deg latitude or 50 deg longitude per time step; +2 if the position exceeds extreme values, such as longitude > 360 deg; +4 if the position is exactly 0.0.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Nicolaus, Marcel | Geocode | ||
| 2 | LATITUDE | Latitude | Nicolaus, Marcel | Geocode | ||
| 3 | LONGITUDE | Longitude | Nicolaus, Marcel | Geocode | ||
| 4 | Position | Pos number | # | Nicolaus, Marcel | Buoy, radiation station (BRS) | along lightchain |
| 5 | Irradiance, sideward, red channel | Red irrad | cts | Nicolaus, Marcel | Buoy, radiation station (BRS) | |
| 6 | Irradiance, sideward, green channel | Green irrad | cts | Nicolaus, Marcel | Buoy, radiation station (BRS) | |
| 7 | Irradiance, sideward, blue channel | Blue irrad | cts | Nicolaus, Marcel | Buoy, radiation station (BRS) | |
| 8 | Irradiance, sideward, clear channel | Clear irrad | cts | Nicolaus, Marcel | Buoy, radiation station (BRS) | |
| 9 | Quality flag, position | QF pos | Nicolaus, Marcel |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 2 (ProcLevel2)
Size:
1194624 data points
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