(Table 1) Attenuation coefficient of lateral propagating light in sea ice, southern Beaufort Sea ...

• Main Authors: Zhao, Jinping, Li, Tao, Barber, David, Ren, Jingping, Pućko, Monika, Li, Shujiang, Li, Xiang
• Format: Dataset
• Language: English
• Published: PANGAEA 2010
• Subjects: ipy; Sample ID; DEPTH, ice/snow; Optical beam attenuation coefficient, 443 nm; Optical beam attenuation coefficient, 465 nm; Optical beam attenuation coefficient, 490 nm; Optical beam attenuation coefficient, 510 nm; Optical beam attenuation coefficient, 532 nm; Optical beam attenuation coefficient, 555 nm; Optical beam attenuation coefficient, 565 nm; Optical beam attenuation coefficient, 589 nm; Optical beam attenuation coefficient, 625 nm; Optical beam attenuation coefficient, 665 nm; Optical beam attenuation coefficient, 683 nm; Optical beam attenuation coefficient, 710 nm; Optical beam attenuation coefficient, 765 nm; Optical beam attenuation coefficient, 780 nm; Ice measurement; Profiling Reflectance and Radiometer System PRR-810; International Polar Year 2007-2008 IPY; Beaufort Sea; International Polar Year; IPY; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.786236; https://doi.pangaea.de/10.1594/PANGAEA.786236

The attenuation property of a lateral propagating light (LPL) in sea ice was measured using an artificial lamp in the Canadian Arctic during the 2007/2008 winter. A measurement method is proposed and applied whereby a recording instrument is buried in the sea ice and an artificial lamp is moved across the instrument. The apparent attenuation coefficient µ(lamda) for the lateral propagating light is obtained from the measured logarithmic relative variation rate. With the exception of blue and red lights, the attenuation coefficient changed little with wavelength, but changed considerably with depth. The vertical decrease of the attenuation coefficient was found to be correlated with salinity: the greater the salinity, the greater the attenuation coefficient. A clear linear relation of salinity and the lateral attenuation coefficient with R2 = 0.939 exists to address the close correlation of the attenuation of LPL with the scattering from the brine. The observed attenuation coefficient of LPL is much larger ... : Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150 ...