Albedo measurements from Radiation Station 2020R24 ...

• Main Authors: Nicolaus, Marcel, Gerland, Sebastian
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: autonomous platform; buoy; solar radiation; DATE/TIME; LATITUDE; LONGITUDE; Albedo, fraction; Albedo, photosynthetically active; Quality flag, sun elevation; Albedo at 320 nm; Albedo at 321 nm; Albedo at 322 nm; Albedo at 323 nm; Albedo at 324 nm; Albedo at 325 nm; Albedo at 326 nm; Albedo at 327 nm; Albedo at 328 nm; Albedo at 329 nm; Albedo at 330 nm; Albedo at 331 nm; Albedo at 332 nm; Albedo at 333 nm; Albedo at 334 nm; Albedo at 335 nm; Albedo at 336 nm; Albedo at 337 nm; Albedo at 338 nm; Albedo at 339 nm; Albedo at 340 nm; Albedo at 341 nm; Albedo at 342 nm; Albedo at 343 nm; Albedo at 344 nm; Albedo at 345 nm; Albedo at 346 nm; Albedo at 347 nm; Albedo at 348 nm; Albedo at 349 nm; Albedo at 350 nm; Albedo at 351 nm; Albedo at 352 nm; Albedo at 353 nm; Albedo at 354 nm; Albedo at 355 nm; Albedo at 356 nm; Albedo at 357 nm; Albedo at 358 nm; Albedo at 359 nm; Albedo at 360 nm; Arctic; Arctic Ocean; albedo; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.945270; https://doi.pangaea.de/10.1594/PANGAEA.945270

Solar radiation over and under sea ice was measured by an autonomous platform, installed on drifting sea ice in the Arctic Ocean during the SV TARA drift campaign in 2007 (station name 2007R24). The resulting time series describes radiation measurements as a function of place and time between 28 April 2007 and 05 September 2007 in sample intervals of 30 minutes. 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) and photosynthetically active radiation (PAR, 400 to 700 nm). Two sensors, solar irradiance and upward reflected solar irradiance, were mounted on a on a platform about 2 m above the sea ice surface. The third sensor was mounted 1.4 m underneath the sea ice measuring the downward transmitted irradiance. ... : 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. Quality flag, sun elevation: 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. ...