globalchange  > 过去全球变化的重建
DOI: 10.1364/OE.27.00A829
WOS记录号: WOS:000470849000020
论文题名:
Global diffuse attenuation derived from vibrational Raman scattering detected in hyperspectral backscattered satellite spectra
作者: Oelker, Julia1; Richter, Andreas1; Dinter, Tilman2; Rozanov, Vladimir V.1; Burrows, John P.1; Bracher, Astrid2
通讯作者: Oelker, Julia
刊名: OPTICS EXPRESS
ISSN: 1094-4087
出版年: 2019
卷: 27, 期:12, 页码:A829-A855
语种: 英语
WOS关键词: SCIAMACHY LIMB MEASUREMENTS ; ABSORPTION CROSS-SECTIONS ; LEVEL 1 DATA ; DOWNWELLING IRRADIANCE ; RADIATIVE-TRANSFER ; CLOUD PRESSURE ; INELASTIC-SCATTERING ; OCEAN WATER ; RETRIEVAL ; COEFFICIENT
WOS学科分类: Optics
WOS研究方向: Optics
英文摘要:

Underwater light field characterization is of importance for understanding biogeochemical processes and heat budget of the global oceans, which are impacting and reacting to climate change. Vibrational Raman Scattering (VRS) was retrieved from backscattered radiances measured by three different hyperspectral satellite sensors, SCIAMACHY, GOME-2, and OMI, using Differential Optical Absorption Spectroscopy (DOAS). Diffuse attenuation coefficient (K-d) in the blue spectral range (390 to 426 nm) was derived from the VRS signal via a look-up-table established through ocean-atmosphere coupled radiative transfer modeling. We processed one year of data, representative of the overlapping period of optimal operation for all three sensors. Resulting data sets were evaluated by comparison with K-d at 490 nm from Ocean Colour Climate Change Initiative (OC-CCI) which was first converted to K-d at 390 to 426 nm. Good agreement with the OC-CCI K-d product was achieved for all three sensors when K-d was limited to below 0.15 m(-1). Differences among the hyperspectral sensors and to OC-CCI were attributed to particular instrumental effects on the DOAS retrieval leading to temporal and spatial biases. This is in addition to the fact that the spatial and temporal resolution of the hyperspectral sensors data differ among themselves and are much lower then for the OC-CCI K-d-product. Further corrections (e.g., empirical) are necessary before these data sets can be merged in order to obtain a long-term K-d product for the blue spectral range. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/140232
Appears in Collections:过去全球变化的重建

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作者单位: 1.Univ Bremen, Inst Environm Phys IUP, Bremen, Germany
2.Helmholtz Ctr Polar & Marine Res, AWI, Bremerhaven, Germany

Recommended Citation:
Oelker, Julia,Richter, Andreas,Dinter, Tilman,et al. Global diffuse attenuation derived from vibrational Raman scattering detected in hyperspectral backscattered satellite spectra[J]. OPTICS EXPRESS,2019-01-01,27(12):A829-A855
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