Tribal Assessment |
The Southwest Deserts Region |
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Since we wanted to
statistically derive a correlation matrix for each region, we needed at
least four sites to in the correlation. There are six sites within the
region based on the physiographic boundaries. IMPROVE and IMPROVE
protocol sites used in this analysis are shown in this
map. |
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The details of the
correlation analysis are provided in tabular format below. The
Representative Distance (Rep. Dist.) is 96 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. |
Southwest Deserts |
Distance (km) |
258.1 |
54.6 |
0.0 |
68.8 |
88.2 |
78.3 |
|
|
Average (Mm-1) |
6.7 |
4.9 |
7.0 |
3.3 |
2.0 |
6.7 |
|
|
Weighting |
0.219 |
0.160 |
0.227 |
0.109 |
0.065 |
0.219 |
|
|
Weighted Dist. (km) |
56.5 |
8.7 |
0.0 |
7.5 |
5.8 |
17.2 |
96 |
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Based on a representative
distance of 96 km, seven tribal areas in the region are not represented by
an IMPROVE or IMPROVE protocol site as shown in this
summary map. |
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The following Class I areas are in the Southwest Deserts region:
Joshua Tree
Saguaro Wilderness Area
Superstition
Wilderness Area |