River Section

Segment length (km)

Total length (km)

West river0.506 34.975

East river0.536 33.49

Grand Mean 0.520 68.465

N

* Scale applies to larger map only

Figure Y: Conceptual schematic of the unsupervised classification methods used on the basemap

Geo-rectified infrared image with three color bands (R,G,B)

Original classified image with 32 classes

Unsupervised classification using

the Maximum

likelihood algorithm

Final classified image

Figure 3: Unsupervised classification of land-use/ land cover in the lower Pascagoula River, MS.

Horizontal profile

Salinity (‰)

0

5

10

15

20

25

30S

ali

nit

y

east river

west river

River mouth River fork

Sa

linity

(‰

)

Figure Z: Horizontal profile interpolation of salinity collected in December 2003.

Figure 7: Interpolated horizontal profiles and descriptive statistics of salinity (‰) collected during March 2003 from the east and west

distributaries of the Pascagoula River, MS.

(‰)

West East

Range 0.02 – 0.040.02 – 3.36

Mean 0.02 0.22

Standard deviation

0.004 0.65

N 251 179

Figure 8: Interpolated horizontal profiles and descriptive statistics of salinity (‰) collected during May 2003 from the east and west

distributaries of the Pascagoula River, MS

(‰)

West East

Range 0.3 – 8.530.4 – 14.03

Mean 1.5 4.95

Standard deviation

2.34 4.48

N 634 1048

Figure 9: Interpolated horizontal profiles and descriptive statistics of salinity (‰) collected during July 2003 from the east and west

distributaries of the Pascagoula River, MS.

(‰)

West East

Range 0 – 1.06 0 – 9.19

Mean 0.03 0.52

Standard deviation

0.06 1.45

N 1613 1614

Figure 10: Interpolated horizontal profiles and descriptive statistics of temperature (°C) collected during March 2003 from the east and west

distributaries of the Pascagoula River, MS.

(°C)

West East

Range16.69 – 20.45

16.6 – 20.45

Mean 16.82 16.98

Standard deviation

0.27 0.46

N 251 179

Figure 11: Interpolated horizontal profiles and descriptive statistic of temperature (°C) collected during May 2003 from the east and

west distributaries of the Pascagoula River, MS

(°C)

West East

Range26.38 – 27.92

26.52 – 28.4

Mean 26.96 27.06

Standard deviation

0.32 0.38

N 634 1048

Figure 12: Interpolated horizontal profiles and descriptive statistics of temperature (°C) collected during July 2003 from the east and west

distributaries of the Pascagoula River, MS.

(°C)

West East

Range26.54 – 30.61

26.73 – 34.38

Mean 27.04 27.79

Standard deviation

0.42 1.36

N 1613 1614