|
Tribal Assessment |
|
The Northern Great Plains |
|
| Since we wanted to
statistically derive a correlation matrix for each region, we needed at
least four sites to in the correlation. There are eight sites within
the region based on the physiographic boundaries. IMPROVE and IMPROVE
protocol sites used in this analysis are shown in this
map. |
|
| The details of the
correlation analysis are provided in tabular format below. The
Representative Distance (Rep. Dist.) is 195 km for this region.
Representative distances were based from exponential curve fits to the
correlation verses
distance curves. |
|
| Region |
|
Sulfate |
NO3 |
OMC |
LAC |
Soil |
CM |
Rep. Dist. |
| Northern Great Plains |
Distance (km) |
157.8 |
116.0 |
320.6 |
103.5 |
151.4 |
252.6 |
|
| |
Average (Mm-1) |
8.6 |
4.0 |
4.9 |
1.4 |
0.6 |
2.9 |
|
| |
Weighting |
0.384 |
0.178 |
0.217 |
0.064 |
0.026 |
0.131 |
|
| |
Weighted Dist. (km) |
60.5 |
20.7 |
69.7 |
6.6 |
4.0 |
33.0 |
195 |
|
|
| Based on a representative
distance of 195 km, nine tribal areas in the region are not represented by
an IMPROVE or IMPROVE protocol site as shown in this
summary map. |
|
 |
|
|
The following Class I areas are in the Northern Great Plains region:
Badlands National Park
Lostwood Wilderness Area
Medicine Lake Wilderness Area
Theodore Roosevelt National Park
U.L. Bend Wilderness Area
Wind Cave National Park |
