φ

phi particle-size scale

±

plus or minus

ASTM

American Society for Testing and Materials

C

centigrade

cm

centimeter

CORS

Continuously Operated Reference Station

.csv

comma-separated values

D_comp

Depth of compacted core

DGPS

Differential Global Positioning System

D_uncomp

Depth of uncompacted core

Esri

Environmental Systems Research Institute

FACS

Field Activity Collection System

FAN

Field Activity Number

FGDC

Federal Geographic Data Committee

GEOID12A

geoid model 12A

GIS

geographic information system

GPR

ground penetrating radar

GPS

Global Positioning System

JPEG

Joint Photographic Experts Group

KB

kilobytes

KML

Keyhole Markup Language

km

kilometer

L

core length

m

meter

MB

megabytes

μm

microns, micrometers

mm

millimeter

NAD83

North American Datum of 1983

NAIP

National Agriculture Imagery Program

NAVD88

North American Vertical Datum of 1988

NGS

National Geodetic Survey

NPS

National Park Service

OPUS

On-Line Positioning User Service

P

core penetration

PDF

Portable Document Format

REST

Robins Rest

.shp

Esri shapefile

SPCMSC

St. Petersburg Coastal and Marine Science Center

TIFF

Tagged Image File Format

USGS

U.S. Geological Survey

UTM

Universal Transverse Mercator

.zip

compressed (zipped) archive