﻿HYDROLOGY 
  OF 
  NEW 
  YORK 
  99 
  

  

  1879 
  

  

  1880 
  

  

  1881 
  

  

  . 
  14.91 
  

  

  18.57 
  

  

  12.33 
  

  

  8.44 
  

  

  10.05 
  

  

  7.38 
  

  

  6.38 
  

  

  8.61 
  

  

  9.56 
  

  

  . 
  29.73 
  

  

  37.23 
  

  

  29.27 
  

  

  Storage 
  

  

  Growing 
  

   Replenishing 
  

  

  Total 
  . 
  . 
  . 
  

  

  In 
  1881 
  the 
  runoff 
  of 
  streams 
  in 
  the 
  vicinity 
  of 
  Cooperstown 
  

   probably 
  did 
  not 
  exceed 
  7 
  inches. 
  The 
  Cooperstown 
  record 
  is 
  

   considered 
  one 
  of 
  the 
  best 
  long 
  records 
  in 
  the 
  State. 
  

  

  At 
  Geneva 
  the 
  mean 
  precipitation 
  for 
  twenty-five 
  years, 
  

   between 
  1850 
  and 
  1893, 
  inclusive, 
  is 
  30.86. 
  In 
  the 
  period 
  from 
  

   1883-1888, 
  inclusive, 
  the 
  precipitation 
  at 
  Geneva 
  was 
  continuously 
  

   below 
  the 
  mean, 
  as 
  indicated 
  by 
  the 
  following 
  : 
  

  

  1883 
  

  

  Storage 
  9.38 
  

  

  Growing 
  10.57 
  

  

  Replenishing.. 
  5.76 
  

  

  Total 
  .... 
  25.71 
  

  

  1884 
  

  

  1885 
  

  

  1886 
  

  

  1887 
  

  

  1888 
  

  

  10.43 
  

  

  5.61 
  

  

  10.02 
  

  

  6.70 
  

  

  10.48 
  

  

  5.78 
  

  

  12.15 
  

  

  10.19 
  

  

  11.41 
  

  

  8.89 
  

  

  5.85 
  

  

  6.35 
  

  

  7.18 
  

  

  4.07 
  

  

  8.22 
  

  

  22.06 
  

  

  24.11 
  

  

  27.39 
  

  

  22.18 
  

  

  27.59 
  

  

  For 
  the 
  years 
  1887 
  and 
  1888, 
  it 
  is 
  probable 
  that 
  streams 
  in 
  the 
  

   vicinity 
  of 
  Geneva 
  did 
  not 
  flow 
  to 
  much 
  exceed 
  2 
  to 
  4 
  inches 
  on 
  

   the 
  catchment 
  area. 
  

  

  At 
  Glens 
  Falls 
  the 
  mean 
  precipitation 
  for 
  the 
  years 
  1879 
  to 
  

   1898, 
  inclusive, 
  is 
  37.76 
  inches. 
  The 
  following 
  is 
  the 
  record 
  for 
  

   the 
  minimum 
  years, 
  1880-1884, 
  inclusive 
  : 
  

  

  1880 
  1881 
  1882 
  1883 
  1884 
  

  

  Storage 
  14.73 
  14.83 
  15.35 
  13.07 
  15.97 
  

  

  Growing 
  4.61 
  5.15 
  9.37 
  5.01 
  7.31 
  

  

  Replenishing 
  10.38 
  8.08 
  6.49 
  10.11 
  6.37 
  

  

  Total 
  29.72 
  28.06 
  31.21 
  28.19 
  29765 
  

  

  A 
  study 
  of 
  runoff 
  records 
  shows 
  that 
  the 
  precipitation 
  of 
  the 
  

   storage 
  period 
  largely 
  controls 
  the 
  runoff 
  for 
  the 
  year 
  ; 
  hence, 
  in 
  

   a 
  year 
  like 
  1883, 
  when 
  the 
  precipitation 
  of 
  the 
  storage 
  period 
  

   was 
  only 
  13.07 
  inches, 
  specially 
  when 
  such 
  a 
  year 
  has 
  been 
  pre- 
  

   ceded 
  by 
  years 
  like 
  1880-1882, 
  inclusive, 
  the 
  runoff 
  will 
  certainly 
  

   be 
  very 
  low. 
  Probably 
  in 
  1883 
  it 
  did 
  not 
  exceed, 
  in 
  the 
  vicinity 
  

  

  