نتایج جستجو برای: seawifs

تعداد نتایج: 385  

2004
J. A. WARRICK L. A. K. MERTES D. A. SIEGEL C. MACKENZIE

A technique is presented for estimating suspended sediment concentrations of turbid coastal waters with remotely sensed multi-spectral data. The method improves upon many standard techniques, since it incorporates analyses of multiple wavelength bands (four for Sea-viewingWide Field of view Sensor (SeaWiFS)) and a nonlinear calibration, which produce highly accurate results (expected errors are...

2015
Fengchao Yao Ibrahim Hoteit

The Gulf of Aden, although subject to seasonally reversing monsoonal winds, has been previously reported as an oligotrophic basin during summer, with elevated chlorophyll concentrations only occurring during winter due to convective mixing. However, the Sea-Viewing Wide Field-of-View Sensor (SeaWiFS) ocean color data reveal that the Gulf of Aden also exhibits a prominent summer chlorophyll bloo...

2005
Zhengjun Liu Changyao Wang Aixia Liu Xiangming Xiao

Due to the 10-bit design of SEAWIFS instrument and the signal transmission, many SEAWIFS satellite images are expected to have lower digitization noise and corrupted impulse noise. In this paper, we first analyze the characteristics of impulse noise and propose a new rank-ordered filter based on the difference of sequence for mean/standard, which is named as Statistical Ratio Rank Ordered Diffe...

Journal: :Limnology and oceanography letters 2023

Products derived from remote sensing reflectances ( R rs ? $$ {R}_{\mathrm{rs}}\left(\lambda \right) ), for example, chlorophyll, phytoplankton carbon, euphotic depth, or particle size, are widely used in oceanography. Problematically, may have fewer degrees of freedom (DoF) than measured wavebands products. Here, we show that a global sea surface hyperspectral dataset has DoF = 4. MODIS-like m...

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