IOCAS-IR
A Spectrally Selective Attenuation Mechanism-Based K-par Algorithm for Biomass Heating Effect Simulation in the Open Ocean
Chen, Jun1,2; Zhang, Xiangguang3; Xing, Xiaogang2; Ishizaka, Joji4; Yu, Zhifeng5
2017-12-01
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
ISSN2169-9275
Volume122Issue:12Pages:9370-9386
Corresponding AuthorChen, Jun(chenjun@xjtu.edu.cn) ; Zhang, Xiangguang(zxg@qdio.ac.cn)
AbstractQuantifying the diffuse attenuation coefficient of the photosynthetically available radiation (K-par) can improve our knowledge of euphotic depth (Z(eu)) and biomass heating effects in the upper layers of oceans. An algorithm to semianalytically derive K-par from remote sensing reflectance (R-rs) is developed for the global open oceans. This algorithm includes the following two portions: (1) a neural network model for deriving the diffuse attention coefficients (K-d) that considers the residual error in satellite R-rs, and (2) a three band depth-dependent K-par algorithm (TDKA) for describing the spectrally selective attenuation mechanism of underwater solar radiation in the open oceans. This algorithm is evaluated with both in situ PAR profile data and satellite images, and the results show that it can produce acceptable PAR profile estimations while clearly removing the impacts of satellite residual errors on K-par estimations. Furthermore, the performance of the TDKA algorithm is evaluated by its applicability in Z(eu) derivation and mean temperature within a mixed layer depth (T-ML) simulation, and the results show that it can significantly decrease the uncertainty in both compared with the classical chlorophyll-a concentration-based K-par algorithm. Finally, the TDKA algorithm is applied in simulating biomass heating effects in the Sargasso Sea near Bermuda, with new K-par data it is found that the biomass heating effects can lead to a 3.4 degrees C maximum positive difference in temperature in the upper layers but could result in a 0.67 degrees C maximum negative difference in temperature in the deep layers.
Keywordocean color diffuse attenuation coefficient photosynthetically available radiation euphotic depth biomass heating effects
DOI10.1002/2017JC013101
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41401597] ; National Natural Science Foundation of China[41676171] ; Fundamental Research Funds for the Central Universities[60020302] ; National Key Research and Development Program of China[2016YFC1402602] ; Qingdao National Laboratory for Marine Science and Technology[QNLM2016ORP0103] ; Second Institute of Oceanography of SOA[QNYC1702] ; Special Fund for National Environmental Protection Research in the Public Interest[201309036] ; China-Korea Joint Ocean Research Center[PI-2017-3]
WOS Research AreaOceanography
WOS SubjectOceanography
WOS IDWOS:000422732100004
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/157796
Collection中国科学院海洋研究所
Corresponding AuthorChen, Jun; Zhang, Xiangguang
Affiliation1.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian, Shaanxi, Peoples R China
2.State Ocean Adm, Inst Oceanog 2, State Key Lab Satellite Ocean Environm Dynam, Hangzhou, Zhejiang, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China
4.Nagoya Univ, Grad Sch Environm Studies, Nagoya, Aichi, Japan
5.Hangzhou Normal Univ, Inst Remote Sensing & Earth Sci, Hangzhou, Zhejiang, Peoples R China
Corresponding Author AffilicationInstitute of Oceanology, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Chen, Jun,Zhang, Xiangguang,Xing, Xiaogang,et al. A Spectrally Selective Attenuation Mechanism-Based K-par Algorithm for Biomass Heating Effect Simulation in the Open Ocean[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2017,122(12):9370-9386.
APA Chen, Jun,Zhang, Xiangguang,Xing, Xiaogang,Ishizaka, Joji,&Yu, Zhifeng.(2017).A Spectrally Selective Attenuation Mechanism-Based K-par Algorithm for Biomass Heating Effect Simulation in the Open Ocean.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,122(12),9370-9386.
MLA Chen, Jun,et al."A Spectrally Selective Attenuation Mechanism-Based K-par Algorithm for Biomass Heating Effect Simulation in the Open Ocean".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 122.12(2017):9370-9386.
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