﻿HYDROLOGY 
  OF 
  NEW 
  YORK 
  

  

  201 
  

  

  Fig. 
  16 
  is 
  a 
  similar 
  diagram 
  for 
  the 
  Upper 
  Hudson 
  during 
  

   the 
  replenishing 
  period 
  for 
  the 
  same 
  years. 
  This 
  diagram 
  shows 
  

   that 
  in 
  1890 
  and 
  1900 
  there 
  Avas 
  a 
  discrepancy, 
  which, 
  as 
  in 
  the 
  

   previous 
  cases, 
  was 
  presumably 
  in 
  the 
  precipitation 
  of 
  that 
  period. 
  

  

  30 
  

  

  20 
  -g 
  

  

  10 
  § 
  10 
  

  

  UPPER 
  HUDSON 
  RIVER 
  

  

  Growing 
  period 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

  

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  — 
  

  

  

  

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  ->— 
  

  

  

  

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  i 
  — 
  

  

  

  

  

  

  

  

  10 
  15 
  20 
  

  

  Precipitation 
  in 
  inches 
  

  

  25 
  

  

  25 
  

  

  30 
  

  

  30 
  

  

  Fig. 
  15 
  Diagram 
  showing 
  the 
  relation 
  between 
  the 
  precipitation 
  

   and 
  runoff 
  in 
  the 
  Upper 
  Hudson 
  river 
  catchment 
  during 
  the 
  

   growing 
  period. 
  

  

  30 
  

  

  20 
  £ 
  

  

  10 
  = 
  10 
  

  

  UPPER 
  HUDSON 
  RIVER 
  

  

  Replenishing 
  period 
  

  

  10 
  

  

  15 
  

  

  20 
  

  

  Precipitation 
  in 
  inches 
  

   10 
  15 
  20 
  

  

  25 
  

  

  25 
  

  

  20 
  

  

  i 
  

  

  

  

  

  

  

  

  I 
  — 
  : 
  — 
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  — 
  i 
  — 
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  J«?*^_- 
  

  

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  I 
  

  

  

  

  

  

  

  

  

  

  

  

  

  

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  ifj»'F? 
  

  

  tjjit 
  &"C^83 
  

  

  

  

  

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  4- 
  

  

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  j^i^d 
  

  

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  — 
  

  

  M 
  II 
  

  

  

  -t- 
  

  

  4- 
  

  

  

  

  

  

  

  30 
  

  

  30 
  

  

  Fig. 
  16 
  Diagram 
  showing 
  the 
  precipitation 
  and 
  runoff 
  in 
  the 
  

   Upper 
  Hudson 
  river 
  catchment 
  during 
  the 
  replenishing 
  period. 
  

  

  Proceeding 
  on 
  similar 
  lines, 
  the 
  writer 
  prepared, 
  several 
  years 
  

   ago, 
  a 
  series 
  of 
  curves, 
  from 
  which 
  the 
  monthly 
  runoffs 
  may 
  be 
  

  

  