Lower Leaf -- Cataloging Unit 03170005

• Pascagoula Subregion 0317
  
• South Atlantic-Gulf Region 03 (There are 198 cataloging units in this region.)
  The state composition by area is 100.0% Mississippi.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 4730.7 km² ( 1827.3 mi² ) [% in USA = 74.47, % in Region = 79.29]
  The area from the USGS is 1820 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 1909)

  IV. Elevation Analysis

  This analysis is based on 1888371 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 77.1 m ( 252.9 ft ) [% in USA = 12.08, % in Region = 54.55]
  The elevation standard deviation is 32.6 m ( 107.0 ft ) [% in USA = 24.44, % in Region = 65.15]
  The coefficient of variation is 42.3 %.
  The vertical relief is 186.0 m ( 610.2 ft ) [% in USA = 26.29, % in Region = 69.19]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	12.0	32.0	48.4	61.0	67.0	76.0	79.1	91.0	104.6	122.0	198.0
  feet	39.4	105.0	158.8	200.1	219.8	249.3	259.5	298.6	343.2	400.3	649.6

  

  V. Map Line Analysis

  Note- percentiles are for the feature density, not for the raw total lengths.
  

  line type	km	mi	km/km²	mi/mi²	% in USA	% in Region
  Perennial Shoreline	635.1	394.7	0.134	0.216	66.84	37.37
  Intermittent Shoreline	11.8	7.3	0.002	0.004	67.31	75.25
  Perennial Streams	1476.2	917.5	0.312	0.502	58.83	23.74
  Intermittent Streams	3513.7	2183.8	0.743	1.195	89.96	97.98
  Canals	2.0	1.2	0.000	0.001	40.98	46.97
  1° roads	87.1	54.1	0.018	0.030	67.36	49.49
  2° roads	185.2	115.1	0.039	0.063	69.64	28.79
  3° roads	423.0	262.9	0.089	0.144	69.26	33.84
  4° roads	6250.8	3884.9	1.321	2.126	66.13	39.90
  Total Roads	6946.1	4317.0	1.468	2.362	66.51	35.35
  Railroads	334.6	207.9	0.071	0.114	74.18	66.16
  Pipes and Powerlines	462.9	287.7	0.098	0.157	93.94	83.33

  
  Of the natural water in this HUC, 62.54% (by length) is intermittent [% in USA = 63.33, % in Region = 97.98]

  VI. Other sites

  • EPA- Surf Your Watershed - Index of Watershed Indicators
  • USGS- Science in Your Watershed - Selected Realtime Streamflow Stations
  • CTIC- Known Your Watershed

  ---

  1999 SEPT 4, Last updated on 2003 JAN 23
  
  D.L. Gustafson, dlg@rapid.msu.montana.edu