Optical Properties and Remote Sensing of Multicomponental Water Bodies
Optical Properties and Remote Sensing of Multicomponental Water Bodies

Author: Kh. I︠U︡ Arst

Publisher: Springer Science & Business Media

Published: 2003-04-29

Total Pages: 264

ISBN-13: 9783540006299

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The text covers the problems concerning optical properties and remote sensing of turbid and surface-polluted oceans and lakes. In four chapters Helgi Arst compares remote sensing data with data collected from similar examination of clean waters. Chapter 1 provides an overview of the main radiative and remote sensing characteristics and provides discussion on the properties of optically active substances (OAS) in the water and their variability and concentration, drawing on original data obtained in the Baltic Sea region. Chapter 2 focuses on the investigation of the influence of surface oil slicks on the reflection and absorption of solar radiation for both calm and ruffled sea surfaces. A model is provided for determining the temperature and the reflected component in upwelling rough seas. Chapter 3 provides remote sensing results obtained mainly for the Baltic Sea region, including some lakes. Correlations between the concentrations of OAS, water transparency and total remote sensing reflectance are investigated. Chapter 4 deals with subsurface irradiance and optical classification of turbid waters. This chapter analyses the different criteria of the euphotic depth, drawing on a semi-empirical model for the estimation of underwater light scattering. The conclusion provides discussion on the results obtained.

Bio-optical Modeling and Remote Sensing of Inland Waters
Bio-optical Modeling and Remote Sensing of Inland Waters

Author: Deepak R. Mishra

Publisher: Elsevier

Published: 2017-04-28

Total Pages: 334

ISBN-13: 0128046546

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Bio-optical Modeling and Remote Sensing of Inland Waters presents the latest developments, state-of-the-art, and future perspectives of bio-optical modeling for each optically active component of inland waters, providing a broad range of applications of water quality monitoring using remote sensing. Rather than discussing optical radiometry theories, the authors explore the applications of these theories to inland aquatic environments. The book not only covers applications, but also discusses new possibilities, making the bio-optical theories operational, a concept that is of great interest to both government and private sector organizations. In addition, it addresses not only the physical theory that makes bio-optical modeling possible, but also the implementation and applications of bio-optical modeling in inland waters. Early chapters introduce the concepts of bio-optical modeling and the classification of bio-optical models and satellite capabilities both in existence and in development. Later chapters target specific optically active components (OACs) for inland waters and present the current status and future direction of bio-optical modeling for the OACs. Concluding sections provide an overview of a governance strategy for global monitoring of inland waters based on earth observation and bio-optical modeling. Presents comprehensive chapters that each target a different optically active component of inland waters Contains contributions from respected and active professionals in the field Presents applications of bio-optical modeling theories that are applicable to researchers, professionals, and government agencies

Springer Series in Light Scattering
Springer Series in Light Scattering

Author: Alexander Kokhanovsky

Publisher: Springer Nature

Published: 2020-02-21

Total Pages: 242

ISBN-13: 3030386961

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This book reviews the spaceborne and airborne remote sensing of clouds including cloud lidar and radar data analysis, snow and soil reflectance spectroscopy, and single light scattering by nonspherical scatterers. Providing deep insights into the latest technologies, it is a valuable resource for scientists and postgraduate students alike.

Spectral Matching by Radiative Transfer Theory
Spectral Matching by Radiative Transfer Theory

Author: Danielle Elizabeth Creanor

Publisher:

Published: 2012

Total Pages: 0

ISBN-13:

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The propagation of natural light in turbid media (including seawater) is determined by both the conditions of illumination and the inherent optical properties of the medium. The illumination conditions include solar angle, degree of cloud cover and sea state, while the relevant inherent optical properties are the spectral coefficients of absorption and scattering and the scattering phase function. These inherent optical properties are functions of seawater composition, including the concentrations of phytoplankton, suspended minerals and dissolved organic substances. Given knowledge of the concentrations of these materials and their specific optical crosssections, the reflectance of a water body can be calculated using radiative transfer theory. However the inverse process, the determination of constituent concentrations from reflectance, is not directly soluble. This problem of reflectance inversion is at the heart of remote sensing of oceanic processes using satellite borne radiometers, and its solution is of great significance in modern oceanography, planetary science and climate change modelling. The hypothesis underlying this thesis is that the inversion of remote sensing signals can be achieved by a process of spectral matching, in which the water-leaving radiance spectra observed from space are compared with a database of spectra calculated using radiance transfer theory for water columns of known composition. This thesis has sought to implement a comprehensive look-up table (LUT) that can be expediently interrogated using a simple inversion algorithm that can be easily adapted to new datasets.

Springer Series in Light Scattering
Springer Series in Light Scattering

Author: Alexander Kokhanovsky

Publisher: Springer

Published: 2019-06-29

Total Pages: 390

ISBN-13: 3030205878

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This book describes recent advances in radiative transfer, atmospheric remote sensing, polarization optics of random media, and light scattering. It is a valuable resource for anyone involved in light scattering research. Providing numerous step-by-step tutorials, it allows readers to quickly learn about various aspects of theoretical and experimental light scattering media optics. The book features among others a chapter on aerosol remote sensing that helps readers to define and solve various aerosol remote sensing problems.

Hyperspectral Remote Sensing of Nearshore Water Quality
Hyperspectral Remote Sensing of Nearshore Water Quality

Author: Sima Bagheri

Publisher: Springer

Published: 2016-11-11

Total Pages: 98

ISBN-13: 3319469495

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This book provides details on of the utility of hyperspectral remote sensing – NASA/AVIRIS in nearshore water quality issues of NY/NJ. It demonstrates the use of bio optical modeling and retrieval techniques to derive the concentrations of important water quality parameters (chlorophyll, color dissolved organic matter and suspended sediments) in the study area. The case study focuses on the nearshore waters of NY/NJ considered as a valued ecological, economic and recreational resource within the New York metropolitan area. During field campaigns (1998-2001) measurements were made to establish hydrological optical properties of the NY/NJ nearshore waters with concurrent NASA/AVIRIS overflights. The field measurements included: 1) concurrent above and below surface spectral reflectance; 2) shipboard sampling for determination of inherent optical properties (IOP); and 3) concentrations of optically important water quality parameters. Understanding the relationship between reflectance, absorption and scattering is essential for developing the analytical algorithm necessary to use remote sensing as a monitoring /management tool in the nearshore environment.

The Use of Landsat 8 for Monitoring of Fresh and Coastal Waters
The Use of Landsat 8 for Monitoring of Fresh and Coastal Waters

Author: Javier A. Concha

Publisher:

Published: 2015

Total Pages: 370

ISBN-13:

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"The most interaction between humankind and water occurs in coastal and inland waters (Case 2 waters) at a scale of tens or hundred of meters, but there is not yet an ocean color product (e.g. chlorophyll-a product) at this spatial scale. Landsat 8 could potentially address the remote sensing of these kinds of waters due to its improved features. This work presents an approach to obtain the color producing agents (CPAs) chlorophyll-a, colored dissolved organic material (CDOM) and suspended material (SM) from water bodies using Landsat 8. Adequate atmospheric correction becomes an important first step to accurately retrieving water parameters since the sensor-reaching signal due to water is very small when compared to the signal due to the atmospheric effects. We developed the model-based empirical line method (MoB-ELM) atmospheric correction method. The Mob-ELM employs pseudo invariant feature (PIF) pixels extracted from a reflectance product along with the in-water radiative transfer model HydroLight. We used a look-up-table-based (LUT-based) inversion methodology to simultaneously retrieve CPAs. The LUT of remote-sensing reflectance spectra was created in Hydrolight using inherent optical properties (IOPs) measured in the field. The retrieval algorithm was applied over three Landsat 8 scenes. The CPA concentration maps exhibit expected trends of low concentrations in clear waters and higher concentrations in turbid waters. We estimated a normalized root mean squared error (NRMSE) of about 14% for Chlorophyll-a, 11% for the total suspended solid (TSS), and 7% for colored dissolved organic matter (CDOM) when compared with in situ data. These results demonstrate that the developed algorithm allows the simultaneous mapping of concentration of all CPAs in Case 2 waters and over areas where the standard algorithms are not available due to spatial resolution. Therefore, this study shows that the Landsat 8 satellite can be utilized over Case 2 waters as long as a careful atmospheric correction is applied and IOPs are known."--Abstract.