Long Island Sound -- Cataloging Unit 01100007

• Connecticut Coastal Subregion 0110
  
• New England Region 01 (There are 53 cataloging units in this region.)
  The state composition by area is unknown.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 3081.7 km² ( 1190.3 mi² ) [% in USA = 48.46, % in Region = 62.26]
  The area from the USGS is 568 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 1245)

  IV. Elevation Analysis

  This analysis is based on 1234722 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 0.5 m ( 1.6 ft ) [% in USA = 0.47, % in Region = 1.89]
  The elevation standard deviation is 8.0 m ( 26.2 ft ) [% in USA = 3.79, % in Region = 1.89]
  The coefficient of variation is 1600.0 %.
  The vertical relief is 253.7 m ( 832.3 ft ) [% in USA = 37.23, % in Region = 13.21]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	253.7
  feet	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	832.3

  

  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	77.7	48.3	0.025	0.041	23.12	1.89
  Intermittent Shoreline	0.1	0.0	0.000	0.000	28.33	54.72
  Perennial Streams	0.0	0.0	0.000	0.000	1.99	1.89
  Intermittent Streams	0.0	0.0	0.000	0.000	1.75	9.43
  Canals	0.0	0.0	0.000	0.000	35.62	56.60
  1° roads	0.7	0.5	0.000	0.000	36.14	22.64
  2° roads	0.0	0.0	0.000	0.000	15.35	7.55
  3° roads	0.0	0.0	0.000	0.000	4.07	1.89
  4° roads	24.1	15.0	0.008	0.013	0.19	1.89
  Total Roads	24.8	15.4	0.008	0.013	0.14	1.89
  Railroads	0.0	0.0	0.000	0.000	12.60	3.77
  Pipes and Powerlines	0.0	0.0	0.000	0.000	8.67	3.77

  
  Of the natural water in this HUC, 0.08% (by length) is intermittent [% in USA = 1.89, % in Region = 9.43]

  VI. Other sites

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

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