Impact of particulate scattering in coastal waters on reflectance spectra: simulations and Chesapeake Bay measurements

OCEANS 2006 ◽  
2006 ◽  
Author(s):  
Alexander Gilerson ◽  
Jing Zhou ◽  
Marco Vargas ◽  
Barry Gross ◽  
Fred Moshary ◽  
...  
Keyword(s):  
Chesapeake Bay ◽  
Coastal Waters ◽  
Reflectance Spectra

scholarly journals Using Optical Water Types to Monitor Changes in Optically Complex Inland and Coastal Waters

2019 ◽  
Vol 11 (19) ◽  
pp. 2297 ◽  
Author(s):  
Kristi Uudeberg ◽  
Ilmar Ansko ◽  
Getter Põru ◽  
Ave Ansper ◽  
Anu Reinart
Keyword(s):  
Remote Sensing ◽  
Coastal Waters ◽  
Atmospheric Correction ◽  
Suspended Sediments ◽  
Reflectance Spectra ◽  
Water Type ◽  
Colored Dissolved Organic Matter ◽  
Water Color ◽  
Sentinel 2

The European Space Agency’s Copernicus satellites Sentinel-2 and Sentinel-3 provide observations with high spectral, spatial, and temporal resolution which can be used to monitor inland and coastal waters. Such waters are optically complex, and the water color may vary from completely clear to dark brown. The main factors influencing water color are colored dissolved organic matter, phytoplankton, and suspended sediments. Recently, there has been a growing interest in the use of the optical water type (OWT) classification in the remote sensing of ocean color. Such classification helps to clarify relationships between different properties inside a certain class and quantify variation between classes. In this study, we present a new OWT classification based on the in situ measurements of reflectance spectra for boreal region lakes and coastal areas without extreme optical conditions. This classification divides waters into five OWT (Clear, Moderate, Turbid, Very Turbid, and Brown) and shows that different OWTs have different remote sensing reflectance spectra and that each OWT is associated with a specific bio-optical condition. Developed OWTs are distinguishable by both the MultiSpectral Instrument (MSI) and the Ocean and Land Color Instrument (OLCI) sensors, and the accuracy of the OWT assignment was 95% for both the MSI and OLCI bands. To determine OWT from MSI images, we tested different atmospheric correction (AC) processors, namely ACOLITE, C2RCC, POLYMER, and Sen2Cor and for OLCI images, we tested AC processors ALTNNA, C2RCC, and L2. The C2RCC AC processor was the most accurate and reliable for use with MSI and OLCI images to estimate OWTs.

scholarly journals Ecosystem effects of shell aggregations and cycling in coastal waters: an example of Chesapeake Bay oyster reefs

Ecology ◽  
2013 ◽  
Vol 94 (4) ◽  
pp. 895-903 ◽  
Author(s):  
George G. Waldbusser ◽  
Eric N. Powell ◽  
Roger Mann
Keyword(s):  
Chesapeake Bay ◽  
Coastal Waters ◽  
Oyster Reefs ◽  
Ecosystem Effects

scholarly journals Diverse circovirus-like genome architectures revealed by environmental metagenomics

2009 ◽  
Vol 90 (10) ◽  
pp. 2418-2424 ◽  
Author(s):  
Karyna Rosario ◽  
Siobain Duffy ◽  
Mya Breitbart
Keyword(s):  
Data Mining ◽  
British Columbia ◽  
Phylogenetic Analysis ◽  
Chesapeake Bay ◽  
Coastal Waters ◽  
Reclaimed Water ◽  
Sargasso Sea ◽  
Genomic Features ◽  
Rep Protein ◽  
Ssdna Viruses

Single-stranded DNA (ssDNA) viruses with circular genomes are the smallest viruses known to infect eukaryotes. The present study identified 10 novel genomes similar to ssDNA circoviruses through data-mining of public viral metagenomes. The metagenomic libraries included samples from reclaimed water and three different marine environments (Chesapeake Bay, British Columbia coastal waters and Sargasso Sea). All the genomes have similarities to the replication (Rep) protein of circoviruses; however, only half have genomic features consistent with known circoviruses. Some of the genomes exhibit a mixture of genomic features associated with different families of ssDNA viruses (i.e. circoviruses, geminiviruses and parvoviruses). Unique genome architectures and phylogenetic analysis of the Rep protein suggest that these viruses belong to novel genera and/or families. Investigating the complex community of ssDNA viruses in the environment can lead to the discovery of divergent species and help elucidate evolutionary links between ssDNA viruses.

scholarly journals In situ activity of NAC11-7 roseobacters in coastal waters off the Chesapeake Bay based on ftsZ expression

2011 ◽  
Vol 13 (4) ◽  
pp. 1032-1041 ◽  
Author(s):  
Daohong Yao ◽  
Alison Buchan ◽  
Marcelino T. Suzuki
Keyword(s):  
Chesapeake Bay ◽  
Coastal Waters

scholarly journals Fluorescence Component in the Reflectance Spectra from Coastal Waters. II. Performance of retrieval algorithms

2008 ◽  
Vol 16 (4) ◽  
pp. 2446 ◽  
Author(s):  
A. Gilerson ◽  
J. Zhou ◽  
S. Hlaing ◽  
I. Ioannou ◽  
B. Gross ◽  
...  
Keyword(s):  
Coastal Waters ◽  
Reflectance Spectra ◽  
Retrieval Algorithms

Inversion of Reflectance Spectra of Nonchlorophyllous Turbid Coastal Waters

1999 ◽  
Vol 68 (3) ◽  
pp. 264-272 ◽  
Author(s):  
Philippe Forget ◽  
Sylvain Ouillon ◽  
Florence Lahet ◽  
Pierre Broche
Keyword(s):  
Coastal Waters ◽  
Reflectance Spectra
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