/*
  cpt-city: ncl/topo_15lev (cpt)

  Colour-tables from NCL (NCAR Command Language), an open-source
  interpreted language designed specifically for scientific data
  analysis and visualisation

  author: University Corporation for Atmospheric Research (UCAR)
  copyright: Custom open-source
  year: 2011
  url: https://phillips.shef.ac.uk/pub/cpt-city/ncl
*/
linear-gradient(
  0deg,
  rgb( 40,  54, 154)   0.000%,
  rgb( 40,  54, 154)   6.250%,
  rgb(  0, 201,  50)   6.250%,
  rgb(  0, 201,  50)  12.500%,
  rgb( 30, 211, 104)  12.500%,
  rgb( 30, 211, 104)  18.750%,
  rgb( 94, 224, 116)  18.750%,
  rgb( 94, 224, 116)  25.000%,
  rgb(162, 235, 130)  25.000%,
  rgb(162, 235, 130)  31.250%,
  rgb(223, 248, 146)  31.250%,
  rgb(223, 248, 146)  37.500%,
  rgb(246, 229, 149)  37.500%,
  rgb(246, 229, 149)  43.750%,
  rgb(200, 178, 118)  43.750%,
  rgb(200, 178, 118)  50.000%,
  rgb(162, 126,  94)  50.000%,
  rgb(162, 126,  94)  56.250%,
  rgb(143,  97,  84)  56.250%,
  rgb(143,  97,  84)  62.500%,
  rgb(162, 125, 116)  62.500%,
  rgb(162, 125, 116)  68.750%,
  rgb(178, 150, 139)  68.750%,
  rgb(178, 150, 139)  75.000%,
  rgb(199, 176, 170)  75.000%,
  rgb(199, 176, 170)  81.250%,
  rgb(219, 205, 202)  81.250%,
  rgb(219, 205, 202)  87.500%,
  rgb(236, 228, 226)  87.500%,
  rgb(236, 228, 226)  93.750%,
  rgb(255, 255, 255)  93.750%,
  rgb(255, 255, 255) 100.000%
);