Open-File Report 2006–1104

U.S. GEOLOGICAL SURVEY
Open-File Report 2006–1104

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Conversion Factors, Datums, and Abbreviations and Acronyms

SI to Inch/Pound

Multiply By To obtain
cubic meter per day (m3/d) 0.2961 acre-foot per year
cubic meter per day (m3/d) 0.0004087 cubic foot per second
cubic meter per day (m3/d) 264.2 gallon per day
kilometer (km) 0.6214 mile
meter (m) 3.281 foot
meter per day (m/d) 3.281 foot per day
meter per day per meter [(m/d)/m] 1 foot per day per foot
square kilometer (km2) 2.417 acre
square kilometer (km2) 0.3861 square mile

Datums

Vertical coordinate information is referenced to the North American Vertical Datum of 1988 (NAVD 88).

Horizontal coordinate information is referenced to the North American Datum of 1927 (NAD 27).

Altitude, as used in this report, refers to distance above the vertical datum.

Abbreviations and Acronyms

BAS6 Basic Package
CHD Constant-Head Boundary Package
CHOB Constant-Head Flow Observation Package
DE4 Direct Solution Package
DIS Discretization file
DRN Drain Package
DROB Drain Observation Package
DVRFS Death Valley regional ground-water flow system
GWF Ground-Water Flow Process
GLO Global Process
GMG Geometric Multigrid Package
HFB6 Horizontal-Flow Barrier Package
HOB Head Observation Package
HGU Hydrogeologic unit
HUF2 Hydrogeologic-Unit Flow Package
KDEP Hydraulic-conductivity depth-dependence
LIST Listing file
LMG Limit to Algebraic Grid Package
MULT Multiplier file
MNW1 Multi-Node Well Package
OBS Observation Process
OC Output Control
PCG Preconditioned Conjugate Gradient Package
PES Parameter-Estimation Process
RCH Recharge Package
SEN Sensitivity Process
SS Specific storage parameter type for the HUF2 Package
SY Specific yield parameter type for the HUF2 Package
USGS United States Geological Survey
UTM Universal Transverse Mercator
WEL1 Well Package
ZONE Zonation file

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