气候变化领域集成服务门户(CCPortal): Hyperspectral downwelling irradiance during POLARSTERN cruise ANT-XXVI/1

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.823147
	Hyperspectral downwelling irradiance during POLARSTERN cruise ANT-XXVI/1
	Hieronymi; Martin; Macke; Andreas; Zielinski; Oliver
发布日期	2012-11-21
数据集类型	dataset
英文简介	A Monte Carlo based radiative transfer model has been developed for calculating the availability of solar radiation within the top 100 m of the ocean. The model is optimized for simulations of spatial high resolution downwelling irradiance Ed fluctuations that arise from the lensing effect of waves at the water surface. In a first step the accuracy of simulation results has been verified by measurements of the oceanic underwater light field and through intercomparison with an established radiative transfer model. Secondly the potential depth-impact of nonlinear shaped single waves, from capillary to swell waves, is assessed by considering the most favorable conditions for light focusing, i.e. monochromatic light at 490 nm, very clear oceanic water with a low chlorophyll a content of 0.1 mg/m**3 and high sun elevation. Finally light fields below irregular wave profiles accounting for realistic sea states were simulated. Our simulation results suggest that under open ocean conditions light flashes with 50% irradiance enhancements can appear down to 35 m depth, and light variability in the range of ±10% compared to the mean Ed is still possible in 100 m depth.
空间范围	Median Latitude: -12.053479 * Median Longitude: -31.321358 * South-bound Latitude: -47.322000 * West-bound Longitude: -60.004800 * North-bound Latitude: 30.288200 * East-bound Longitude: -14.350000
时间范围	2009-10-26T14:07:14 - 2009-11-22T17:53:19
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/226918
推荐引用方式 GB/T 7714	Hieronymi,Martin,Macke,et al. Hyperspectral downwelling irradiance during POLARSTERN cruise ANT-XXVI/1.2012-11-21.https://doi.org/10.1594/PANGAEA.823147.