Unraveling Mechanisms Underlying Annual Plankton Blooms in the North Atlantic and Their Implications for Biogenic Aerosol Properties and Cloud Formation PDF Download
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Author: Kristina Dee Anne Mojica
Publisher: Frontiers Media SA
ISBN: 288971652X
Category : Science
Languages : en
Pages : 314
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Book Description
Author: Kristina Dee Anne Mojica
Publisher: Frontiers Media SA
ISBN: 288971652X
Category : Science
Languages : en
Pages : 314
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Book Description
Author: C. Eden
Publisher:
ISBN:
Category : Ocean-atmosphere interaction
Languages : en
Pages : 13
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Author: Nicole Chisholm
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Marine aerosols play an important role in earth's climate, but their effects remain highly uncertain due to a poor understanding of their sources, properties, and atmospheric processing, partly due to limited measurements. The Coastal-Fog (C-FOG) study investigated the processes controlling the formation and properties of fog in the North Atlantic Ocean. As part of this study, aerosol particle size distributions and chemical composition were measured off the shore of the northeastern United States and Atlantic Canada, and used to investigate the sources and processes affecting the observed aerosols. Processed marine air during the study was characterized by single and bi-modal aerosol size distributions. Aerosols in the port city of St. John's, Newfoundland reflected local emissions built up due to poor ventilation, whereas aerosols in Halifax, Nova Scotia were lower in concentration because the harbour is more spread out. Finally, two particle growth events were observed. The first event captured the appearance of 10 nm particles that grew to 30 nm over 4 h. These aerosols appeared to be newly formed in the upper portion of the boundary layer with influence from the free troposphere before subsiding to the surface. In the second event, 45 nm particles grew to 70 nm over 8 h. The growth of these aerosols was most likely due to the direct condensation of organic vapours emitted from boreal forests and/or the ocean. Our observations provide important insight into the processes affecting marine aerosols and highlight the crucial role of boundary layer meteorology.
Author: Aurora M. Justiniano Santos
Publisher:
ISBN:
Category : Aerosols
Languages : en
Pages : 176
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Author: Rei Ueyama
Publisher:
ISBN:
Category :
Languages : en
Pages : 118
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Author: Emerson Allen Sirk
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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This study examines decade-scale shifts in annual phytoplankton bloom timing across the North Atlantic Ocean. Phytoplankton blooms in this region play a critical role in regulating the global carbon cycle and marine ecosystem dynamics. Decadal shifts in the mean timing of bloom onset, bloom termination and bloom duration were examined using 22 years of satellite-derived ocean color data. At higher latitudes in the North Atlantic, median bloom onset date was shifted 4.4 days later, median bloom termination was shifted 1.5 days earlier and median bloom duration shifted 3.6 days shorter. At lower latitudes in the North Atlantic, median bloom onset date was shifted 2.9 days earlier, there was no observed shift in median bloom termination and median bloom duration was shifted 3.6 days longer. Interdecadal trends in wind speeds in the North Atlantic have been documented in a recent study, offering an explanation for the observed shifts in bloom timing. This study produces a first look into recent decadal shifts in bloom timing that should continue to be monitored and studied as more satellite ocean color data are collected.
Author: Arnold H. Taylor
Publisher: Oxford University Press
ISBN: 0191029483
Category : Science
Languages : en
Pages : 303
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Book Description
How can the tiny plankton in the sea just off Western Europe be affected by changes 6000 km away on the other side of the North Atlantic Ocean? How can a slight rise in the temperature of the surface of the Pacific Ocean have a devastating impact on amphibian life in Costa Rica? Living populations across the globe are connected by great swayings of the world's atmosphere and oceans, the largest of which is El Nino. For almost half a century, the numbers of some of the smallest animals in the North Sea have gone up and down as the Gulf Stream has moved north and south 4000 miles away at the coast of the USA. This connection has happened because the weather patterns over the North Atlantic are intertwined by a phenomenon first described by a Danish missionary in the eighteenth century, the North Atlantic Oscillation. In The Dance of Air and Sea Arnold Taylor focuses on the large-scale dynamics of the world's climate, looking at how the atmosphere and oceans interact, and the ways in which ecosystems in water and on land respond to changes in weather. He tells stories of how discoveries were made, and the scientists who made them; and he considers the crucial issues of how the discoveries aid our response to global warming.
Author: Anna Sergeevna Rumyantseva
Publisher:
ISBN:
Category :
Languages : en
Pages :
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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.
Author:
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Category :
Languages : en
Pages : 0
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As part of the Monterey Area Ship Track (MAST) Study, the University of Washington's Cloud and Aerosol Research Group used its integrated airborne research facility to obtain in situ measurements of the particles and gases emitted by various types of ships, the dispersion and evolution of these effluents downwind, and their effects on the microstructure and optical properties of marine stratiform clouds, particularly as they affect the formation of so-called 'ship tracks' in clouds. The results of these studies confirmed that it is the effluents from ships that produce 'ship tracks' under appropriate cloud and meteorological conditions.
