Immersion factors for the RAMSES series of hyper-spectral underwater radiometers
Immersion factors for the RAMSES series of hyper-spectral underwater radiometers
复制标题
RAMSES 系列高光谱水下辐射计的浸没系数
DOI：
--
复制
发表时间：
2006
期刊：
影响因子：
--
通讯作者：
M. Darecki
中科院分区：
文献类型：
--
作者：
G. Zibordi;M. Darecki
The immersion factors If of sample RAMSES radiance and irradiance hyper-spectral radiometers were experimentally determined in the 400–700 nm spectral range using state of the art protocols, with the aim of supporting the use of these sensors in accurate radiometric measurements for ocean colour applications. Values of If obtained from the characterization of RAMSES-ACC-VIS irradiance sensors showed a dispersion of 2% in the blue increasing to 4% in the red spectral region. Results obtained from the characterization of RAMSES-MRC-VIS radiance sensors having a 20° in-air full-angle field of view highlighted an average spectral bias of −2.4% in the theoretical If values determined just using the refractive indices of the intervening medium and of the optical window. This average spectral bias exhibited values of −0.8% for the RAMSES-ARC-VIS radiance sensors having a 7° in-air full-angle field of view. Using these results, reference If values have been proposed for the RAMSES series of hyper-spectral radiometers.
