Title Page

Acknowledgments

List of Figures

Conversion Factors

Abbreviations and Symbols

Abstract

Introduction

Site Description

Field Program

Time Line Table

Bottom Sediment Sample Table

Suspended Sediment Sample Table

Mooring Log Table

Instrumentation

Results

Digital Data File Table

References Cited

Appendix 1

Appendix 2

Appendix 3

Appendix 4

Abbreviations

2D	two-dimensional
3D	three-dimensional
ARP	address resolution protocol
ARM	advanced reduced-instruction set machine
ASCII	American Standard Code for Information Interchange
°C	degrees Celsius
CCD	charge-coupled device
CDOM	colored dissolved organic matter
Chl	chlorophyll a
cm	centimeter
CT	conductivity and temperature
dbar	decibar
EMF	electromagnetic field
EPIC	Equatorial Pacific Information Collection
ftp	file transfer protocol
g	gram or gravity
hr	hour
HTML	hypertext markup language
http	hypertext transfer protocol
Hz	hertz (cycles per second)
ID	identification
IP	Internet protocol
kg	kilogram
kHz	kilohertz
km	kilometers
L	liter
L-1	per liter
m	meter
m-1	per meter (units for light attenuation)
mab	meters above bottom
mbar	millibar
MHz	megahertz
min	minute
µL	microliter
µm	micron or micrometer
mm	millimeter
MVCO	Martha's Vineyard Coastal Observatory
mW	milliwatt
NetCDF	network common data format
nm	nanometer
NTU	nephelometric turbidity units
OASIS	optics, acoustics, and stress in situ
ONR	Office of Naval Research
pgm	portable graymap
PID	process identification
ppt	parts per thousand (units of salinity for YSI instruments)
psu	practical salinity units (units of salinity for Sea-Bird Electronics instruments)
RAM	random access memory
rpm	revolutions per minute
s	second
s-1	per second
SCUBA	self-contained underwater breathing apparatus
SSC	suspended solids concentration
UART	universal asynchronous receiver and transmitter
UDP	User Datagram Protocol
USGS	U. S. Geological Survey
UTC	Coordinated Universal Time
VDC	volts direct current
W	watt
WHOI	Woods Hole Oceanographic Institution

Instruments

ABSS	Aquatec International Aquascat acoustic backscatter sensor
AC-9	WetLabs AC-9 spectral absorption and beam attenuation meter
ADCP	Teledyne RD Instruments acoustic doppler current profiler
ADV	SonTek acoustic doppler velocimeter, ADVOcean model
Aquadopp	Nortek AS Aquadopp velocity profiler
Aquadopp HR	Nortek AS Aquadopp high resolution velocity profiler
BB2F	WetLabs ECO BB2F Spectral Backscattering Meter and CDOM Fluorometer
IG-20	SBG Systems IG-20 two-axis inclinometer and three-axis accelerometer
LISST-100X	Sequoia Scientific, laser in situ scattering and transmissometry particle sizer, model LISST-100X
LISST-HOLO	Sequoia Scientific, submersible digital holographic particle imaging system, model LISST-HOLO
Modtronix	Modtronix SBC68EC embedded single-board computer
Moxa	Moxa UC8418 computer
OBS	D&A Instruments Co. optical backscatter sensor
Paros	Paroscientific, (Paros) Digiquartz pressure sensor
PCADP	SonTek pulse-coherent acoustic doppler profiler
SEACAT	Sea-Bird Electronics 16plus V2 SEACAT recorder
YSI	YSI, model 6600 multiparameter sonde

Symbols

α	arm angle, parallel to seafloor = 0
α'	vertical angle between the arm and the sensor location
°	degrees
%	percent
ap	particulate absorption
hADV	elevation of ADV above the seafloor
hLISST	elevation of LISST above the seafloor
hPCADP	elevation of PCADP above the seafloor
hPivot	elevation of arm pivot above the seafloor
ra	horizontal distance from the pivot along the arm axis
xa	horizontal distance to the right (positive) or left (negative) from the center of the arm
y	horizontal distance from the pivot
yp	horizontal location relative to arm for sensors on articulated package on end of arm
z	vertical distance from the seafloor
za	vertical distance above the arm when arm is level (α=0)
zp	vertical location relative to arm for sensors on articulated package on end of arm