Remote-sensing reflectance and true colour produced by a coupled hydrodynamic, optical, sediment, biogeochemical model of the Great Barrier Reef, Australia: Comparison with satellite data

被引:63
|
作者
Baird, Mark E. [1 ]
Cherukuru, Nagur [1 ]
Jones, Emlyn [1 ]
Margvelashvili, Nugzar [1 ]
Mongin, Mathieu [1 ]
Oubelkheir, Kadija [1 ]
Ralph, Peter J. [3 ]
Rizwi, Farhan [1 ]
Robson, Barbara J. [2 ]
Schroeder, Thomas [1 ]
Skerratt, Jennifer [1 ]
Steven, Andrew D. L. [1 ]
Wild-Allen, Karen A. [1 ]
机构
[1] CSIRO Oceans & Atmosphere, Hobart, Tas, Australia
[2] CSIRO Land & Water, Canberra, ACT, Australia
[3] Univ Technol Sydney, Fac Sci, Plant Funct Biol & Climate Change Cluster, Sydney, NSW 2007, Australia
关键词
Ocean colour; Chlorophyll; Sediment; Water clarity; Tropical cyclone Yasi; ATMOSPHERIC CORRECTION; ECOSYSTEM MODEL; WATER-QUALITY; COASTAL; OCEAN; LIGHT; PHYTOPLANKTON; CHLOROPHYLL; ASSIMILATION; VARIABILITY;
D O I
10.1016/j.envsoft.2015.11.025
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
Aquatic biogeochemical models are vital tools in understanding and predicting human impacts on water clarity. In this paper, we develop a spectrally-resolved optical model that produces remote-sensing reflectance as a function of depth-resolved biogeochemical model properties such as phytoplankton biomass, suspended sediment concentrations and benthic reflectance. We compare simulated remote sensing reflectance from a 4 km resolution coupled hydrodynamic, optical, sediment and biogeochemical model configured for the Great Barrier Reef with observed remote-sensing reflectance from the MODIS sensor at the 8 ocean colour bands. The optical model is sufficiently accurate to capture the remote-sensing reflectance that would arise from a specific biogeochemical state. Thus the mismatch between simulated and observed remote-sensing reflectance provides an excellent metric for model assessment of the coupled biogeochemical model. Finally, we combine simulated remote-sensing reflectance in a red/green/blue colour model to produce simulated true colour images during the passage of Tropical Cyclone Yasi in February 2011. (C) 2015 Elevier Ltd. All rights reserved.
引用
收藏
页码:79 / 96
页数:18
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