Lower Hudson -- Cataloging Unit 02030101

• Lower Hudson Accounting Unit 020301
  
• Lower Hudson-Long Island Subregion 0203
  
• Mid-Atlantic Region 02 (There are 95 cataloging units in this region.)
  The state composition by area is 91.7% New York, 6.4% New Jersey, 1.9% Connecticut.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 1758.4 km² ( 679.2 mi² ) [% in USA = 12.93, % in Region = 17.89]
  The area from the USGS is 720 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 1768)

  IV. Elevation Analysis

  This analysis is based on 702951 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 141.1 m ( 462.9 ft ) [% in USA = 19.23, % in Region = 41.05]
  The elevation standard deviation is 86.8 m ( 284.8 ft ) [% in USA = 52.58, % in Region = 52.63]
  The coefficient of variation is 61.5 %.
  The vertical relief is 396.0 m ( 1299.2 ft ) [% in USA = 48.03, % in Region = 40.00]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	0.0	6.6	62.1	94.6	121.6	145.1	153.2	182.0	213.0	266.2	396.0
  feet	0.0	21.7	203.7	310.4	398.9	476.0	502.6	597.1	698.8	873.3	1299.2

  

  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	930.0	578.0	0.529	0.851	96.54	89.47
  Intermittent Shoreline	5.2	3.2	0.003	0.005	69.64	93.68
  Perennial Streams	684.0	425.1	0.389	0.626	69.02	20.00
  Intermittent Streams	0.0	0.0	0.000	0.000	1.75	9.47
  Canals	4.8	3.0	0.003	0.004	53.01	62.11
  1° roads	289.9	180.2	0.165	0.265	98.67	90.53
  2° roads	205.2	127.5	0.117	0.188	99.34	97.89
  3° roads	395.4	245.7	0.225	0.362	94.13	84.21
  4° roads	5225.4	3247.6	2.972	4.781	97.54	84.21
  Total Roads	6115.9	3801.0	3.478	5.596	97.82	86.32
  Railroads	234.8	145.9	0.134	0.215	93.42	81.05
  Pipes and Powerlines	23.2	14.4	0.013	0.021	28.47	15.79

  
  Of the natural water in this HUC, 0.32% (by length) is intermittent [% in USA = 3.17, % in Region = 17.89]

  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