34 
Acronyms 
ACB Alliance for Chesapeake Bay 
°C degrees Celcius 
CEDS Comprehensive Environmental Data System 
CFD cumulative frequency distribution 
CHLA chlorophyll a 
CIMS Chesapeake Information Management System 
CBP Chesapeake Bay Program 
DATAFLOW A field sampling technology that collects spatially intensive data (hence 
DATA) for five environmental parameters (water temperature, salinity, 
dissolved oxygen, turbidity (ntu), and fluorescence (used to estimate 
chlorophyll a) are collected from a flow-through (hence FLOW) stream of 
water collected near the surface of the water column. 
DE 
DFLO 
EPA 
GIS 
HRSD 
K d 
kg/m 3 /m 
km 2 
LICOR 
MD 
MD DNR 
m 2 
mg 0 2 /L 
NAD 
NTU 
ppt 
QA/QC 
RSME 
SAV 
SOP 
TMDL 
Mg/L 
UTM 
VA 
VA DEQ 
VIMS 
YSI 
Delaware 
DATAFLOW 
U.S. Environmental Protection Agency 
Geographic Information System 
Hampton Roads Sanitation District 
light attenuation measure 
kilograms per cubic meter per meter 
square kilometer 
Company name for a sensor used in water quality monitoring that measures underwater 
photosynthetically active radiation (PAR) 
Maryland 
Maryland Department of Natural Resources 
square meter 
milligram dissolved oxygen per liter 
North American Datum 
nephelometric turbidity units 
parts per thousand 
quality assurance/quality control 
root mean square error 
submerged aquatic vegetation 
standard operating procedures 
Total Maximum Daily Load 
micrograms per liter 
Universal Transverse Mercator 
Virginia 
Virginia Department of Environmental Quality 
Virginia Institute of Marine Science 
Yellow Springs Instruments, company producing water quality monitoring sensors 
acronyms 
