Texana 2000

Texana2000.mdb geodatabase
	boundary
		tex83: lake boundary digitized from 1995 DOQs
		is83: island boundaries isolated from above file
		(83 means projected in NAD83 state plane)
	cont_2: 2 ft contours
	tex_pt: all survey data points
	
Texana83_poly.shp: polygon shape file of lake boundary digitized from 1995 DOQs
Texana_is83_poly.shp: polygon shape file of island boundaries
Texana_pt.shp: all survey data points
Texana_cont_2.shp: 2 ft contours

datetimexyz.txt: txt file of survey data points (date,time,x-coord,y-coord,z(elevation))

truav.txt: elevation area volumes calculated from tin model, file called true area volume because
	in order to do calculations all elevations had to be adjusted to be positive numbers
	file is in negative elevations, square feet, cubic feet
	
elv_area_vol.txt: above file converted to elevations, acres, acre-feet

areaneg.table.txt: elevation area table formatted (negative elevation values only)
areapos.table.txt: elevation area table formatted (positive elevation values only)
volumeneg.table.txt: elevation volume table formatted (negative elevation values only)
volumepos.table.txt: elevation volume table formatted (positive elevation values only)