I. CONTENTS
	
FILES IN DIRECTORY:

INVERTED RESISTIVITY DATA:
FtWainwrightAEM_INV.XYZ
FtWainwrightAEM_INV.gdb

COORDINATE SYSTEM:
HORIZONTAL:
Universal Transverse Mercator projection
Zone 6 North
North American Datum of 1983 (NAD83)

VERTICAL:
Elevation data are provided in two datums:

Earth Gravitational Model of 1996 (EGM96)
Altitudes are derived from processed GPS data collected during the AEM survey

North American Vertical Datum of 1988 (NAVD88)
NAVD88 elevations are derived from the USGS National Elevation Dataset, 60-m resolution

II. DATABASE FORMAT

INVERTED RESISTIVITY DATA:

CHANNEL		UNITS	DESCRIPTION
LINE			Line numbers
X_UTM6_m		m	Easting (NAD83) UTM Z6N
Y_UTM6_m		m	Northing (NAD83) UTM Z6N
DTM_AEM		m	Land surface elevation above EGM96
DEM_SAMPL	m	Land surface elevation above NAVD88
DEP_TOP		m	Upper depth of corresponding data interval, [i]=array index 
DEP_BOT		m	Lower depth of corresponding data interval, [i]=array index 
RES_INV_DOI	ohm.m	Resistivity of corresponding depth interval, [i]=array index 


III. DISCLAIMERS

Although these data have been subjected to rigorous review and are substantially complete, the USGS reserves the right to revise the data pursuant to further analysis and review.  Furthermore, the data are released on condition that neither the USGS nor the United States Government may be held liable for any damages resulting from its authorized or unauthorized use.

Although these data have been processed successfully on a computer system at the U.S. Geological Survey, no warranty, expressed or implied is made regarding the display or utility of the data on any other system, or for general or scientific purposes, nor shall the act of distribution constitute such warranty.  The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and/or contained herein.

Although this information product, for the most part, is in the public domain, it also contains copyrighted materials as noted in the text. Permission to reproduce copyrighted items for other than personal use must be secured from the copyright owner.

Any use of trade, product or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.