Table 2.

Sample strata within each of the two geographic strata. Strata 1 through 16 are class-specific “no change” strata based on the Level II classes and strata 17 through 37 are change strata based on the Level I classes. The “catchall” stratum includes all other three-date Level I land cover class combinations. Numbers in parentheses are total sample size across both geographic strata.

Strata (2001–2006–2011)	Strata (continued)
1) Water–water–water (165)	20) Forest–forest–urban (150)
2) Ice–ice–ice (25)	21) Forest–grassland–grassland (80)
3) Open urban (OU)–OU–OU (260)	22) Forest–forest–grassland (180)
4) Low density urban (LDU)–LDU–LDU (200)	23) Shrubland–forest–forest (80)
5) Medium density urban (MDU)–MDU–MDU (180)	24) Shrubland–shrubland–forest (165)
6) High density urban (HDU)–HDU–HDU (165)	25) Shrubland–grassland–grassland (80)
7) Barren–barren–barren (225)	26) Shrubland–shrubland–grassland (165)
8) Deciduous forest (DF)–DF–DF (550)	27) Shrubland–urban–urban (80)
9) Evergreen forest (EF)–EF–EF (565)	28) Shrubland–shrubland–urban (150)
10) Mixed forest (MF)–MF–MF (220)	29) Grassland–shrubland–shrubland (80)
11) Shrubland–shrubland–shrubland (615)	30) Grassland–grassland–shrubland (165)
12) Grassland–grassland–grassland (490)	31) Grassland–urban–urban (80)
13) Pasture–pasture–pasture (475)	32) Grassland–grassland–urban (150)
14) Crop–crop–crop (660)	33) Agriculture–urban–urban (80)
15) Woody wetland (WW)–WW–WW (265)	34) Agriculture–agriculture–urban (150)
16) Emergent wetland (EM)–EM–EM (180)	35) Forest–shrubland–grassland (80)
17) Forest–shrubland–shrubland (80)	36) Grassland–grassland–agriculture (150)
18) Forest–forest–shrubland (180)	37) Grassland–forest–forest (80)
19) Forest–urban–urban (80)	38) Catchall (275)