Table 3 Semi-variance function model parameters of groundwater level (2001–2013)
Year | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Nugget value | 79.3 | 83.5 | 90.3 | 81.6 | 83.8 | 92.3 | 116.9 | 129.6 | 106.6 | 97.2 | 99.2 | 103.1 | 107.2 |
Partial sill value | 135.6 | 124.9 | 115.8 | 105.1 | 103.9 | 78.3 | 63.0 | 48.9 | 72.3 | 87.2 | 85.6 | 82.1 | 78.2 |
Sill value | 214.9 | 208.4 | 206.1 | 186.7 | 187.7 | 170.6 | 179.9 | 178.5 | 178.9 | 184.4 | 184.8 | 185.2 | 185.4 |
Nugget effect | 0.37 | 0.40 | 0.44 | 0.44 | 0.45 | 0.54 | 0.65 | 0.73 | 0.60 | 0.53 | 0.54 | 0.56 | 0.58 |