/*
  cpt-city: ncl/nrl_sirkes (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(  0,  97, 128)   0.000%,
  rgb(  0,  97, 128)   5.000%,
  rgb(  0, 128, 161)   5.000%,
  rgb(  0, 128, 161)  10.000%,
  rgb(  0, 161, 191)  10.000%,
  rgb(  0, 161, 191)  15.000%,
  rgb(  0, 191, 224)  15.000%,
  rgb(  0, 191, 224)  20.000%,
  rgb(  0, 224, 255)  20.000%,
  rgb(  0, 224, 255)  25.000%,
  rgb(  0, 255, 255)  25.000%,
  rgb(  0, 255, 255)  30.000%,
  rgb( 51, 252, 252)  30.000%,
  rgb( 51, 252, 252)  35.000%,
  rgb(102, 252, 252)  35.000%,
  rgb(102, 252, 252)  40.000%,
  rgb(153, 252, 252)  40.000%,
  rgb(153, 252, 252)  45.000%,
  rgb(204, 252, 252)  45.000%,
  rgb(204, 252, 252)  50.000%,
  rgb(255, 255, 255)  50.000%,
  rgb(255, 255, 255)  55.000%,
  rgb(252, 252,   0)  55.000%,
  rgb(252, 252,   0)  60.000%,
  rgb(252, 224,   0)  60.000%,
  rgb(252, 224,   0)  65.000%,
  rgb(252, 191,   0)  65.000%,
  rgb(252, 191,   0)  70.000%,
  rgb(252, 161,   0)  70.000%,
  rgb(252, 161,   0)  75.000%,
  rgb(252, 128,   0)  75.000%,
  rgb(252, 128,   0)  80.000%,
  rgb(252,  97,   0)  80.000%,
  rgb(252,  97,   0)  85.000%,
  rgb(252,  64,   0)  85.000%,
  rgb(252,  64,   0)  90.000%,
  rgb(252,  33,   0)  90.000%,
  rgb(252,  33,   0)  95.000%,
  rgb(191,   0,   0)  95.000%,
  rgb(191,   0,   0) 100.000%
);