Potential impacts of nonalgal materials on water-leaving Sun induced chlorophyll fluorescence signals in coastal waters.

Potential impacts of nonalgal materials on water-leaving Sun induced chlorophyll fluorescence signals in coastal waters. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Potential impacts of nonalgal materials on water-leaving Sun induced chlorophyll fluorescence signals in coastal waters. Abstract Text:

David McKee,Alex Cunningham,David Wright,Lorraine Hay,David McKee,Alex Cunningham,David Wright,Lorraine Hay,

It has been suggested that Sun induced chlorophyll fluorescence (SICF) signals could be used to estimate phytoplankton chlorophyll concentration and to investigate algal physiology from space. However, water-leaving SICF is also a product of the ambient light field. In coastal waters both algal and nonalgal materials affect the underwater light field. In this study we examine the independent impacts of varying loads of mineral suspended solids (MSS) and colored dissolved organic materials (CDOM) on water-leaving SICF signals using Hydrolight radiative transfer simulations. We show that SICF signals in coastal waters are strongly influenced by nonalgal materials. Increasing concentrations of CDOM and minerals can reduce the water-leaving SICF per unit chlorophyll by over 50% for the concentration ranges explored here (CDOM = 0 to 1 m(-1) at 440 nm, MSS=0 to 10 g m(-3)). The moderate-resolution imaging spectroradiometer (MODIS) fluorescence line height algorithm is shown to be relatively unaffected by increasing CDOM, but performance is significantly degraded by mineral concentrations greater than 5 g m(-3) owing to increased background radiance levels. The combination of these two effects means that caution is required for the interpretation of SICF signals from coastal waters.

Potential impacts of nonalgal materials on water-leaving Sun induced chlorophyll fluorescence signals in coastal waters. Publishing Authors By Initials

D McKee,A Cunningham,D Wright,L Hay,D McKee,A Cunningham,D Wright,L Hay,

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

Potential impacts of nonalgal materials on water-leaving Sun induced chlorophyll fluorescence signals in coastal waters. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Applied optics

VOLUME: 46

Page Numbers: 7720-9

Journal Abbreviation:

ISSN: 0003-6935

DAY: 1

MONTH: Nov

YEAR: 2007

Potential impacts of nonalgal materials on water-leaving Sun induced chlorophyll fluorescence signals in coastal waters. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 247660

Potential impacts of nonalgal materials on water-leaving Sun induced chlorophyll fluorescence signals in coastal waters. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: Potential impacts of nonalgal materials on water-leaving Sun induced chlorophyll fluorescence signals in coastal waters. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Potential impacts of nonalgal materials on water-leaving Sun induced chlorophyll fluorescence signals in coastal waters.

AFFILIATION:

Country: United States

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: Appl Opt

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Potential impacts of nonalgal materials on water-leaving Sun induced chlorophyll fluorescence signals in coastal waters Related Publications

• A synthetic maternal-effect selfish genetic element drives population replacement in Drosophila.
• Bacterial degradation of N,N-diethyl-m-toluamide (DEET): cloning and heterologous expression of DEET hydrolase.
• Calcium: a fundamental regulator of intracellular membrane fusion?
• Characteristics and zona binding ability of FRESH and cooled domestic cat epididymal spermatozoa.
• Chemically mediated competition between microbes and animals: microbes as consumers in food webs.
• Chronic fetal hypoglycemia inhibits the later steps of stimulus-secretion coupling in pancreatic beta-cells.
• Climatic similarity and biological exchange in the worldwide airline transportation network.
• Defining the global spatial limits of malaria transmission in 2005.
• Deletion 22q11: spectrum of associated disorders.
• Early postnatal nutritional requirements of the very preterm infant based on a presentation at the NICHD-AAP workshop on research in neonatology.
• Economic modeling and sensitivity analysis.
• Effect of hyperinsulinemia on amino acid utilization and oxidation independent of glucose metabolism in the ovine fetus.
• Estrogen receptor-alpha mediates estrogen protection from angiotensin II-induced hypertension in conscious female mice.
• Evaluating the CSAPPA subscales as potential screening instruments for developmental coordination disorder.
• Fractures and avascular necrosis before and after orthotopic liver transplantation: long-term follow-up and predictive factors.
• Global transport networks and infectious disease spread.
• How do changes in tumor matrix affect the outcome of virotherapy?
• Human matrix metalloproteinase-8 gene delivery increases the oncolytic activity of a replicating adenovirus.
• Hypoglycemia in newborn infants: Features associated with adverse outcomes.
• Potential impacts of nonalgal materials on water-leaving Sun induced chlorophyll fluorescence signals in coastal waters.
• Predator release of the gastropod Cyphoma gibbosum increases predation on gorgonian corals.
• Prophylaxis in adults with haemophilia.
• Risk management: the top 10 mistakes dentists make.
• SNARE status regulates tether recruitment and function in homotypic COPII vesicle fusion.
• Sex differences in angiotensin II- induced hypertension.
• Skin toxicology.
• Stille coupling reactions in the synthesis of hypoxia-selective 3-alkyl-1,2,4-benzotriazine 1,4-dioxide anticancer agents.
• The Drosophila caspase Ice is important for many apoptotic cell deaths and for spermatid individualization, a nonapoptotic process.
• The gradual emergence of sex differences in aggression: alternative hypotheses.
• echinus, required for interommatidial cell sorting and cell death in the Drosophila pupal retina, encodes a protein with homology to ubiquitin-specific proteases.