# overview
The Particle Dynamics Group studies the dynamics and biogeochemistry of particle formation, sinking, resuspension, transport and diagenesis in the ocean from the continental shelf to the deep sea and from surface waters to the seafloor.

A major initiative was to obtain worldwide measurements of POC in surface waters and fine particle distributions throughout the water column using transmissometers to help determine global ocean processes of particle generation and recycling.

Our latest project has been to synthesize >10,000 turbidity profiles to the seafloor on 116 cruises in the last 52 years in all oceans to construct the first maps showing locations of regions of nepheloid (cloudy) layers near the seafloor caused by resuspension of sediments and to examine the linkage with upper ocean dynamics.

# keywords[]
Maximum Normalized Difference Carbon Index (MNDCI)

# keywords[]
Maximum Normalized Difference Carbon Index (MNDCI)

# educationAndTraining[].organization.label
Massachusetts Institute of Technology - (Cambridge, Massachusetts, United States)

# educationAndTraining[].organization.label
Massachusetts Institute of Technology - (Cambridge, Massachusetts, United States)

# publications[].label
Currents and sediment transport in the Mississippi Canyon and effects of Hurricane Georges

# publications[].label
PARTICLE EXPORT AND RESUSPENSION FLUXES IN THE WESTERN NORTH-ATLANTIC

# publications[].label
A sediment trap experiment in the Vema Channel to evaluate the effect of horizontal particle fluxes on measured vertical fluxes

# publications[].label
CALIBRATION AND COMPARISON OF THE LDGO NEPHELOMETER AND THE OSU TRANSMISSOMETER ON THE NOVA SCOTIAN RISE

# publications[].label
EVIDENCE FOR RESUSPENSION OF BOTTOM SEDIMENTS SOUTH OF ICELAND

# publications[].label
Remote sensing and surface POC concentration in the South Atlantic

# publications[].label
Global POC concentrations from in-situ and satellite data

# publications[].label
OBSERVATIONS ON THE DEGRADATION OF BIOGENIC MATERIAL IN THE DEEP OCEAN WITH IMPLICATIONS ON ACCURACY OF SEDIMENT TRAP FLUXES

# publications[].label
PERIODIC RESUSPENSION IN BALTIMORE CANYON BY FOCUSING OF INTERNAL WAVES

# publications[].label
THE EFFECT OF TILT ON SEDIMENT TRAP EFFICIENCY

# publications[].label
Particle dynamics in the Eastern Mediterranean Sea: A synthesis based on light transmission, PMC, and POC archives (1991-2001)

# publications[].label
Canyon and slope processes study. Volume 2: physical processes.

# publications[].label
Beam attenuation by microorganisms and detrital particles in the equatorial Pacific

# publications[].label
STANDING STOCK, VERTICAL-DISTRIBUTION AND FLUX OF PLANKTONIC-FORAMINIFERA IN THE PANAMA BASIN

# publications[].label
SUSPENDED PARTICULATE MATTER TRANSPORT THROUGH THE VEMA CHANNEL

# publications[].label
Tracing offshore low-salinity plumes in the Northeastern Gulf of Mexico during the summer season by use of multispectral remote-sensing data

# publications[].label
The oxygen minimum zone in the Arabian Sea during 1995

# publications[].label
Global assessment of benthic nepheloid layers and linkage with upper ocean dynamics

# publications[].label
DISTRIBUTION OF MACROAGGREGATES AND FINE-GRAINED PARTICLES ACROSS A CONTINENTAL-MARGIN AND THEIR POTENTIAL ROLE IN FLUXES

# publications[].label
NEPHELOMETER AND CURRENT OBSERVATIONS AT THE STIE SITE, PANAMA BASIN

# publications[].label
The Flux of Particles to the Deep Sea: Methods, Measurements, and Mechanisms

# publications[].label
Climatological variability of surface particulate organic carbon (POC) and physical processes based on ocean color data in the Gulf of Mexico

# publications[].label
ABYSSAL CURRENTS AND ADVECTION OF RESUSPENDED SEDIMENT ALONG THE NORTHEASTERN BERMUDA RISE

# publications[].label
PARTICLE RESIDENCE TIME IN AN OCEANIC NEPHELOID LAYER AND TOTAL PARTICULATE FLUX

# publications[].label
The role of seasonal and diel changes in mixed-layer depth on carbon and chlorophyll distributions in the Arabian Sea

# publications[].label
ANALYSIS OF SUSPENDED-PARTICLE-SIZE DISTRIBUTIONS OVER THE NOVA SCOTIAN CONTINENTAL RISE

# publications[].label
On the transport and modification of Antarctic Bottom Water in the Vema Channel

# publications[].label
Determining true particulate organic carbon: bottles, pumps and methodologies

# publications[].label
Particle sources over the Danube River delta, Black Sea based on distribution, composition and size using optics, imaging and bulk analyses

# publications[].label
Spectral particulate attenuation and particle size distribution in the bottom boundary layer of a continental shelf

# publications[].label
FLUXES OF PARTICULATE CARBON, NITROGEN, AND PHOSPHORUS IN THE UPPER WATER COLUMN OF THE NORTHEAST PACIFIC - REPLY

# publications[].label
Benthic storms, nepheloid layers, and linkage with upper ocean dynamics in the western North Atlantic

# publications[].label
A comparison of hydrographically and optically derived mixed layer depths

# publications[].label
Ecological anomalies in the East China Sea: Impacts of the Three Gorges Dam?

# publications[].label
Seasonal evolution of hydrographic properties in the Antarctic circumpolar current at 170 degrees W during 1997-1998

# publications[].label
THE DIEL CYCLE IN THE INTEGRATED PARTICLE LOAD IN THE EQUATORIAL PACIFIC - A COMPARISON WITH PRIMARY PRODUCTION

# publications[].label
Beam attenuation by microorganisms and detrital particles in the equatorial Pacific

# publications[].label
Decadal Comparisons of Particulate Matter in Repeat Transects in the Atlantic, Pacific, and Indian Ocean Basins

# publications[].label
SEDIMENTATION-RATES IN THE SLOPE WATER OF THE NORTHWEST ATLANTIC OCEAN MEASURED DIRECTLY WITH SEDIMENT TRAPS

# publications[].label
SeaWiFS satellite ocean color data from the Southern Ocean

# publications[].label
A meeting place of great ocean currents: shipboard observations of a convergent front at 2 degrees N in the Pacific

# publications[].label
An assessment of the use of sediment traps for estimating upper ocean particle fluxes

# publications[].label
Distribution, Sources, and Dynamics of Particulate Matter Along Trans-Arctic Sections

# publications[].label
CANYONS OFF NORTHWEST PUERTO-RICO - STUDIES OF THEIR ORIGIN AND MAINTENANCE WITH THE NUCLEAR-RESEARCH SUBMARINE NR-1

# publications[].label
BACTERIAL-GROWTH AND THE DECOMPOSITION OF PARTICULATE ORGANIC-CARBON COLLECTED IN SEDIMENT TRAPS

# publications[].label
AWESOME OCIM: A simple, flexible, and powerful tool for modeling elemental cycling in the oceans

# publications[].label
Effects of monsoons on the seasonal and spatial distributions of POC and chlorophyll in the Arabian Sea

# publications[].label
CHARACTERISTICS OF NEAR-BOTTOM SUSPENDED SEDIMENTS OF NORTHEASTERN ATLANTIC

# publications[].label
A SEDIMENT TRAP INTERCOMPARISON STUDY IN THE SANTA-BARBARA BASIN

# publications[].label
Particle dynamics as controlled by the flow field of the eastern equatorial Pacific

# publications[].label
A COMPARISON OF AGGREGATE PROFILES WITH SEDIMENT TRAP FLUXES

# publications[].label
INCOMPLETE EXTRACTION OF RAPIDLY SETTLING PARTICLES FROM WATER SAMPLERS

# publications[].label
BIOPHYSICAL FORCING OF PARTICLE-PRODUCTION AND DISTRIBUTION DURING A SPRING BLOOM IN THE NORTH-ATLANTIC

# publications[].label
Model-based remote sensing algorithms for particulate organic carbon (POC) in the Northeastern Gulf of Mexico

# publications[].label
SEDIMENTOLOGICAL EFFECTS OF STRONG SOUTHWARD FLOW IN THE STRAITS OF FLORIDA

# publications[].label
Optical techniques for remote and in-situ characterization of particles pertinent to GEOTRACES

# publications[].label
A SEDIMENT TRAP INTERCOMPARISON EXPERIMENT IN THE PANAMA BASIN, 1979

# publications[].label
The effect of brine on the collection efficiency of cylindrical sediment traps

# publications[].label
Nepheloid layers in the deep Gulf of Mexico

# publications[].label
LONG-TERM PHOTOGRAPHIC, CURRENT, AND NEPHELOMETER OBSERVATIONS OF MANGANESE-NODULE ENVIRONMENTS IN THE PACIFIC

# publications[].label
How schlieren affects beam transmissometers and LISST-Deep: an example from the stratified Danube River delta, NW Black Sea

# publications[].label
ABYSSAL CURRENT CHARACTER DETERMINED FROM SEDIMENT BEDFORMS ON THE NOVA SCOTIAN CONTINENTAL RISE

# publications[].label
NEW EVIDENCE FOR NORTHWARD FLOWING BOTTOM WATER ALONG HATTON SEDIMENT DRIFT, EASTERN NORTH-ATLANTIC

# publications[].label
Benthic storms: temporal variability in a deep-ocean nepheloid layer.

# publications[].publisher
American Association for the Advancement of Science (AAAS)

# publications[].label
A model study of the relative influences of scavenging and circulation on Th-230 and Pa-231 in the western North Atlantic

# publications[].label
Global comparison of benthic nepheloid layers based on 52 years of nephelometer and transmissometer measurements

# publications[].label
Seasonal patterns of water column particulate organic carbon and fluxes in the Ross Sea, Antarctica

# publications[].label
Optics, particles, stratification, and storms on the New England continental shelf

# publications[].label
Beam attenuation and micro-organisms: Spatial and temporal variations in small particles along 140 degrees W during the 1992 JGOFS EqPac transects

# publications[].label
RESUSPENSION MEASURED WITH SEDIMENT TRAPS IN A HIGH-ENERGY ENVIRONMENT

# publications[].label
SEDIMENT TRAP DYNAMICS AND CALIBRATION - A LABORATORY EVALUATION

# publications[].label
SEDIMENT TRANSPORT OVER THE HATTON AND GARDAR CONTOURITE DRIFTS

# publications[].label
Multispectral remote-sensing algorithms for particulate organic carbon (POC): The Gulf of Mexico

# publications[].label
An assessment of particulate organic carbon to thorium-234 ratios in the ocean and their impact on the application of Th-234 as a POC flux proxy

# publications[].label
SEDIMENTATION, RESUSPENSION AND CHEMISTRY OF PARTICLES IN THE NORTHWEST ATLANTIC

# publications[].label
BALTIMORE CANYON AS A MODERN CONDUIT OF SEDIMENT TO THE DEEP-SEA

# researcherOn[].label
NSF-S-Stem Geological and Geophysical Scholars of Continental Margins

# researcherOn[].awardedBy.label
National Science Foundation - (Arlington, Virginia, United States)

# researcherOn[].label
Multi-Decadal Global Surveys of Benthic Nepheloid Layers

# researcherOn[].awardedBy.label
National Science Foundation - (Arlington, Virginia, United States)

# researcherOn[].awardedBy.label
National Science Foundation - (Arlington, Virginia, United States)

# streetAddress
Texas A&M University; Oceanography; 3146 TAMU

# etdChairOf[].label
Rice, Stephanie Kimberly (2009-05). Suspended sediment transport in the Ganges-Brahmaputra River System, Bangladesh. Master's Thesis.

# etdChairOf[].label
Son, Young Baek (2007-09). POC algorithms based on spectral remote sensing data and its temporal and spatial variability in the Gulf of Mexico. Doctoral Dissertation.

# etdChairOf[].label
Zuck, Nicole A (2014-08). The Relationships of Particulate Matter and Particulate Organic Carbon with Hypoxic Conditions Along the Texas-Louisiana Shelf. Master's Thesis.

# etdChairOf[].label
Gray, Rebecca Marie (2016-07). Influences on the Temporal and Spatial Variability of Particulate Matter in the Northern Gulf of Mexico. Master's Thesis.

# etdChairOf[].label
Cochran, Emma Mary (2013-07). The Role of Particulate Matter in the Development of Hypoxia on the Texas-Louisiana Shelf. Master's Thesis.