Geodatabase Compilation of Historical Water-Level Altitudes in the Chicot and Evangeline Aquifers 1977-2013 and Jasper Aquifer 2000-13 in the Gulf Coast Aquifer System, Houston-Galveston Region, Texas by Michaela R. Johnson, and Robert H. H. Ellis The GIS data are contained in two separate compressed files: Geodatabase version: DS793_Water_level_altitudes_1977to2013_gdb.zip Shapefile version: DS793_Water_level_altitudes_1977to2013_shp.zip Each of these versions contains a metadata directory containing Federal Geographic Data Committee compliant metadata in *.xml and *.txt versions. \metadata\DS793_Water_level_altitudes_1977to2013.txt \metadata\DS793_Water_level_altitudes_1977to2013.xml The data are separated into three feature datasets (three directories for shapefiles) by aquifer that contain the individual feature classes (shapefiles). Chicot aquifer - (feature dataset name/shapefile directory name) Feature classes/shapefiles, 1977-2013: alt77_CH - water-level altitudes in the Chicot aquifer, 1977 alt78_CH - water-level altitudes in the Chicot aquifer, 1978 alt79_CH - water-level altitudes in the Chicot aquifer, 1979 alt80_CH - water-level altitudes in the Chicot aquifer, 1980 alt81_CH - water-level altitudes in the Chicot aquifer, 1981 alt82_CH - water-level altitudes in the Chicot aquifer, 1982 alt83_CH - water-level altitudes in the Chicot aquifer, 1983 alt84_CH - water-level altitudes in the Chicot aquifer, 1984 alt85_CH - water-level altitudes in the Chicot aquifer, 1985 alt86_CH - water-level altitudes in the Chicot aquifer, 1986 alt87_CH - water-level altitudes in the Chicot aquifer, 1987 alt88_CH - water-level altitudes in the Chicot aquifer, 1988 alt89_CH - water-level altitudes in the Chicot aquifer, 1989 alt90_CH - water-level altitudes in the Chicot aquifer, 1990 alt91_CH - water-level altitudes in the Chicot aquifer, 1991 alt92_CH - water-level altitudes in the Chicot aquifer, 1992 alt93_CH - water-level altitudes in the Chicot aquifer, 1993 alt94_CH - water-level altitudes in the Chicot aquifer, 1994 alt95_CH - water-level altitudes in the Chicot aquifer, 1995 alt96_CH - water-level altitudes in the Chicot aquifer, 1996 alt97_CH - water-level altitudes in the Chicot aquifer, 1997 alt98_CH - water-level altitudes in the Chicot aquifer, 1998 alt99_CH - water-level altitudes in the Chicot aquifer, 1999 alt00_CH - water-level altitudes in the Chicot aquifer, 2000 alt01_CH - water-level altitudes in the Chicot aquifer, 2001 alt02_CH - water-level altitudes in the Chicot aquifer, 2002 alt03_CH - water-level altitudes in the Chicot aquifer, 2003 alt04_CH - water-level altitudes in the Chicot aquifer, 2004 alt05_CH - water-level altitudes in the Chicot aquifer, 2005 alt06_CH - water-level altitudes in the Chicot aquifer, 2006 alt07_CH - water-level altitudes in the Chicot aquifer, 2007 alt08_CH - water-level altitudes in the Chicot aquifer, 2008 alt09_CH - water-level altitudes in the Chicot aquifer, 2009 alt10_CH - water-level altitudes in the Chicot aquifer, 2010 alt11_CH - water-level altitudes in the Chicot aquifer, 2011 alt12_CH - water-level altitudes in the Chicot aquifer, 2012 alt13_CH - water-level altitudes in the Chicot aquifer, 2013 Evangeline aquifer - (feature dataset name/shapefile directory name) Feature classes/shapefiles, 1977-2013: alt77_EV - water-level altitudes in the Evangeline aquifer, 1977 alt78_EV - water-level altitudes in the Evangeline aquifer, 1978 alt79_EV - water-level altitudes in the Evangeline aquifer, 1979 alt80_EV - water-level altitudes in the Evangeline aquifer, 1980 alt81_EV - water-level altitudes in the Evangeline aquifer, 1981 alt82_EV - water-level altitudes in the Evangeline aquifer, 1982 alt83_EV - water-level altitudes in the Evangeline aquifer, 1983 alt84_EV - water-level altitudes in the Evangeline aquifer, 1984 alt85_EV - water-level altitudes in the Evangeline aquifer, 1985 alt86_EV - water-level altitudes in the Evangeline aquifer, 1986 alt87_EV - water-level altitudes in the Evangeline aquifer, 1987 alt88_EV - water-level altitudes in the Evangeline aquifer, 1988 alt89_EV - water-level altitudes in the Evangeline aquifer, 1989 alt90_EV - water-level altitudes in the Evangeline aquifer, 1990 alt91_EV - water-level altitudes in the Evangeline aquifer, 1991 alt92_EV - water-level altitudes in the Evangeline aquifer, 1992 alt93_EV - water-level altitudes in the Evangeline aquifer, 1993 alt94_EV - water-level altitudes in the Evangeline aquifer, 1994 alt95_EV - water-level altitudes in the Evangeline aquifer, 1995 alt96_EV - water-level altitudes in the Evangeline aquifer, 1996 alt97_EV - water-level altitudes in the Evangeline aquifer, 1997 alt98_EV - water-level altitudes in the Evangeline aquifer, 1998 alt99_EV - water-level altitudes in the Evangeline aquifer, 1999 alt00_EV - water-level altitudes in the Evangeline aquifer, 2000 alt01_EV - water-level altitudes in the Evangeline aquifer, 2001 alt02_EV - water-level altitudes in the Evangeline aquifer, 2002 alt03_EV - water-level altitudes in the Evangeline aquifer, 2003 alt04_EV - water-level altitudes in the Evangeline aquifer, 2004 alt05_EV - water-level altitudes in the Evangeline aquifer, 2005 alt06_EV - water-level altitudes in the Evangeline aquifer, 2006 alt07_EV - water-level altitudes in the Evangeline aquifer, 2007 alt08_EV - water-level altitudes in the Evangeline aquifer, 2008 alt09_EV - water-level altitudes in the Evangeline aquifer, 2009 alt10_EV - water-level altitudes in the Evangeline aquifer, 2010 alt11_EV - water-level altitudes in the Evangeline aquifer, 2011 alt12_EV - water-level altitudes in the Evangeline aquifer, 2012 alt13_EV - water-level altitudes in the Evangeline aquifer, 2013 Jasper aquifer - (feature dataset name/shapefile directory name) Feature classes/shapefiles, 2000-2013: alt00_JA - water-level altitudes in the Jasper aquifer, 2000 alt01_JA - water-level altitudes in the Jasper aquifer, 2001 alt02_JA - water-level altitudes in the Jasper aquifer, 2002 alt03_JA - water-level altitudes in the Jasper aquifer, 2003 alt04_JA - water-level altitudes in the Jasper aquifer, 2004 alt05_JA - water-level altitudes in the Jasper aquifer, 2005 alt06_JA - water-level altitudes in the Jasper aquifer, 2006 alt07_JA - water-level altitudes in the Jasper aquifer, 2007 alt08_JA - water-level altitudes in the Jasper aquifer, 2008 alt09_JA - water-level altitudes in the Jasper aquifer, 2009 alt10_JA - water-level altitudes in the Jasper aquifer, 2010 alt11_JA - water-level altitudes in the Jasper aquifer, 2011 alt12_JA - water-level altitudes in the Jasper aquifer, 2012 alt13_JA - water-level altitudes in the Jasper aquifer, 2013