The Influence of Phytoplankton on Ocean Color Spectra

The Influence of Phytoplankton on Ocean Color Spectra PDF Author: James L. Mueller
Publisher:
ISBN:
Category : Colors
Languages : en
Pages : 524

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The Influence of Phytoplankton on Ocean Color Spectra

The Influence of Phytoplankton on Ocean Color Spectra PDF Author: James L. Mueller
Publisher:
ISBN:
Category : Colors
Languages : en
Pages : 524

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Book Description


Real-time Coastal Observing Systems for Marine Ecosystem Dynamics and Harmful Algal Blooms

Real-time Coastal Observing Systems for Marine Ecosystem Dynamics and Harmful Algal Blooms PDF Author: Babin, Marcel
Publisher: UNESCO
ISBN: 9231040421
Category : Nature
Languages : en
Pages : 880

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Book Description
The proliferation of harmful phytoplankton in marine ecosystems can cause massive fish kills, contaminate seafood with toxins, impact local and regional economies and dramatically affect ecological balance. Real-time observations are essential for effective short-term operational forecasting, but observation and modelling systems are still being developed. This volume provides guidance for developing real-time and near real-time sensing systems for observing and predicting plankton dynamics, including harmful algal blooms, in coastal waters. The underlying theory is explained and current trends in research and monitoring are discussed.Topics covered include: coastal ecosystems and dynamics of harmful algal blooms; theory and practical applications of in situ and remotely sensed optical detection of microalgal distributions and composition; theory and practical applications of in situ biological and chemical sensors for targeted species and toxin detection; integrated observing systems and platforms for detection; diagnostic and predictive modelling of ecosystems and harmful algal blooms, including data assimilation techniques; observational needs for the public and government; and future directions for research and operations.

Phytoplankton Pigments

Phytoplankton Pigments PDF Author: Suzanne Roy
Publisher: Cambridge University Press
ISBN: 1139500996
Category : Science
Languages : en
Pages :

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Book Description
Pigments act as tracers to elucidate the fate of phytoplankton in the world's oceans and are often associated with important biogeochemical cycles related to carbon dynamics in the oceans. They are increasingly used in in situ and remote-sensing applications, detecting algal biomass and major taxa through changes in water colour. This book is a follow-up to the 1997 volume Phytoplankton Pigments in Oceanography (UNESCO Press). Since then, there have been many advances concerning phytoplankton pigments. This book includes recent discoveries on several new algal classes particularly for the picoplankton, and on new pigments. It also includes many advances in methodologies, including liquid chromatography-mass spectrometry (LC-MS) and developments and updates on the mathematical methods used to exploit pigment information and extract the composition of phytoplankton communities. The book is invaluable primarily as a reference for students, researchers and professionals in aquatic science, biogeochemistry and remote sensing.

Investigation of the Effects of Natural Variations of Phytoplankton on Ocean Color

Investigation of the Effects of Natural Variations of Phytoplankton on Ocean Color PDF Author: Minsu Kim
Publisher:
ISBN:
Category :
Languages : en
Pages : 320

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Marine Optics

Marine Optics PDF Author: N.G. Jerlov
Publisher: Elsevier
ISBN: 0080870503
Category : Science
Languages : en
Pages : 247

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Book Description
Marine Optics

YOUMARES 8 – Oceans Across Boundaries: Learning from each other

YOUMARES 8 – Oceans Across Boundaries: Learning from each other PDF Author: Simon Jungblut
Publisher: Springer
ISBN: 3319932845
Category : Science
Languages : en
Pages : 259

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Book Description
This open access book presents the proceedings volume of the YOUMARES 8 conference, which took place in Kiel, Germany, in September 2017, supported by the German Association for Marine Sciences (DGM). The YOUMARES conference series is entirely bottom-up organized by and for YOUng MARine RESearchers. Qualified early career scientists moderated the scientific sessions during the conference and provided literature reviews on aspects of their research field. These reviews and the presenters’ conference abstracts are compiled here. Thus, this book discusses highly topical fields of marine research and aims to act as a source of knowledge and inspiration for further reading and research.

Phytoplankton Bloom Dynamics and Development of Methods for Estimating Primary Productivity in the California Current System

Phytoplankton Bloom Dynamics and Development of Methods for Estimating Primary Productivity in the California Current System PDF Author:
Publisher:
ISBN: 9781339401980
Category :
Languages : en
Pages : 156

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Book Description
The California Current System (CCS) is a coastal upwelling region that supports diverse and abundant mesopredators including fishes, seabirds, and marine mammals. Many fisheries, including Pacific salmon, anchovy, and sardine are present along the coast, making effective management of coastal marine resources in the CCS both ecologically and economically important. Oceanographic observation networks can provide useful information for resource management, but because of limited spatial coverage, fail to provide a complete picture of water mass dynamics. Next-generation ocean color radiometers with improved spectral resolution will provide opportunities for development of new algorithms to resolve important ecological questions in complex coastal environments. This dissertation focused first on phytoplankton bloom dynamics in the upwelling shadow of Monterey Bay, California. Using partial least squares regression, environmental factors were related to microbial and phytoplankton abundances in order to evaluate how environmental factors influence the local phytoplankton community. Microbial and phytoplankton abundances in the upwelling shadow were positively associated with warmer, nutrient-depleted water. "Major" blooms of all biological groups primarily occurred during the oceanic season when these environmental conditions persisted. Chapters 2 and 3 built on knowledge from Chapter 1 and included remote sensing techniques. Chapter 2 used hyperspectral ocean color and sea surface temperature (SST) data collected from low-flying aircraft and a systematic cross-shelf survey design to characterize water types in the northern CCS. Using three derived ocean color parameters (chlorophyll a, colored dissolved organic matter, and particle concentration) and SST, k-means clustering produced tenable water mass classifications; comparative k-means clustering using 20 spectral shape coefficients derived using functional data analysis failed to resolve meaningful water mass classifications. Data for this chapter were collected as part of the U.S. Geological Survey's Pacific Continental Shelf Ecosystem Assessment (PaCSEA) program. Finally in Chapter 3, I used hyperspectral data to understand bloom dynamics in Monterey Bay, California, Chapter 3 modified working primary productivity (PP) models to include a particle size distribution component. Based on phytoplankton physiology, I expected modified PP algorithms would improve PP estimates compared with traditional methods. Although modified PP models improved estimates by a factor of two to three when compared to 14C-derived ground truth values, no significant improvement was made over other regionally-tuned algorithms. This indicates that one or more other variables, such as depth resolved chlorophyll a, are needed to significantly improve future models. Data for this chapter were collected as part of the Hyperspectral Infrared Imager (HyspIRI) flight campaign using the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) sensor. Due to issues with atmospheric corrections, not enough data were available to make statistically significant conclusions on the performance of this sensor in Monterey Bay.

Oceanography from Space

Oceanography from Space PDF Author: Vittorio Barale
Publisher: Springer Science & Business Media
ISBN: 9048186811
Category : Technology & Engineering
Languages : en
Pages : 378

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Book Description
To all those sailors / Who dreamed before us / Of another way to sail the oceans. The dedication of this Volume is meant to recall, and honour, the bold pioneers of ocean exploration, ancient as well as modern. As a marine scientist, dealing with the oceans through the complex tools, ?lters and mechanisms of contemporary research, I have always wondered what it was like, in centuries past, to look at that vast ho- zon with the naked eye, not knowing what was ahead, and yet to sail on. I have tried to imagine what ancient sailors felt, when “the unknown swirls around and engulfs the mind”, as a forgotten author simply described the brave, perhaps reckless, act of facing such a hostile, menacing and yet fascinating adventure. Innovation has always been the key element, I think, for their success: another way, a better way, a more effective, safer and worthier way was the proper answer to the challenge. The map of our world has been changed time and again, from the geographical as well as the social, economic and scienti?c points of view, by the new discoveries of those sailors. One of the positive qualities of human beings is without doubt the inborn desire to expand their horizons, to see what lies beyond, to learn and understand.

Ocean Optics Protocols for Satellite Ocean Color Sensor Validation

Ocean Optics Protocols for Satellite Ocean Color Sensor Validation PDF Author:
Publisher:
ISBN:
Category : Ocean color
Languages : en
Pages : 148

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The Biomass Spectrum

The Biomass Spectrum PDF Author: S. R. Kerr
Publisher: Columbia University Press
ISBN: 9780231507349
Category : Science
Languages : en
Pages : 344

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Book Description
Kerr and Dickie propose the development of a new ecological theory, one that can lead to a more effective remedy for the drastic effects of heavy fishing on natural communities of organisms in both marine and freshwater environments. By plotting the densities of the biomass of all organisms in a given community by body-size classes, the authors provide empirical evidence of what they term "the biomass body-size spectrum" in the world's oceans. After examining this evidence, they propose an underlying theory of predator-prey energy transfer: larger species eat smaller species, providing energy exchange across all species within an ecosystem. Providing the first comprehensive synthesis of the energy flow within the biomass spectrum, this book demonstrates not only a new understanding of the self-organizing properties of ecological production systems but also the potential of the biomass spectrum methodology for offering practical remedies when these natural systems are exploited by humans.