Title :
Optical properties for sea ice measured during LEADEX ´92
Author :
Tanis, Fred J. ; Shuchman, Robert A. ; Onstott, R.G.
Author_Institution :
Center for Earth Sci., Environ. Res. Inst. of Michigan, Ann Arbor, MI, USA
Abstract :
A green laser, Ne:YAG (532 nm), was used to make both in situ and field laboratory measurements of transmission loss and spreading through samples of sea ice and snow collected from the Beaufort Sea during the LEADEX ´92 experiment. The sea ice types sampled include first year (FY), multiyear (MY), melt pond (MP), and various stages of young lead ice (LD). Laboratory samples were taken from cores and placed in the collimated beam of the field portable instrument where losses and spreading were measured with a linear photodetector array. Comparable in situ measurements were made on lead ice and first year ice types by placing the laser source beneath the ice sheet and measuring the transmission and the beam spread function (BSF) at the surface. Data generated from both techniques were analyzed to characterize intrinsic beam transmission and small angle scattering optical properties
Keywords :
oceanographic regions; oceanographic techniques; remote sensing; remote sensing by laser beam; sea ice; 532 nm; Arctic Ocean Beaufort Sea; LEADEX ´92; first year; green laser; ice type; laser; measurement technique; melt pond; multiyear; ocean underwater light; optical properties; optics; remote sensing; sea ice; transmission loss; young lead ice; Collimators; Laboratories; Laser beams; Loss measurement; Optical losses; Optical scattering; Propagation losses; Sea ice; Sea measurements; Snow;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1993. IGARSS '93. Better Understanding of Earth Environment., International
Conference_Location :
Tokyo
Print_ISBN :
0-7803-1240-6
DOI :
10.1109/IGARSS.1993.322201
