NCL precip 15lev

Summary

NCL precip 15lev is a sequential colormap from ncar. Lightness spans 0.35–1.00, hue sweeps 329° from magenta to orange, and order breaks under protan, deutan, and tritan simulation.

NCL precipitation magnitude ramp.

Perceptual profile (OKLCh)

• Lightness: 1.000 → 0.578 (range 0.647, min 0.353, max 1.000); non-monotonic; midpoint 0.797
• Chroma: min 0.000, max 0.288, mean 0.203
• Hue: 0.0° → 30.5° (span 329.5°), path monotonic-ccw; quadrants: magenta, violet, blue, azure, cyan, mint, green, chartreuse, yellow, orange
• Endpoint temperature: null → warm
• Perceptual ΔE: total 315.3, mean/step 1.237, max step 5.076, smoothness 0.200, speed 1.000

Colorblind safety (ΔE under simulated CVD)

• Protanopia: ΔE total 251.1; preserves order: no
• Deuteranopia: ΔE total 251.2; preserves order: no
• Tritanopia: ΔE total 298.5; preserves order: no

Related

• Family: ncar
• Source: NCL/NCAR — UCAR (via hhuangwx/cmaps MIT wrapper)
• Similar sequential maps: NCL CBR drywet, NCL CBR wet, GMT drywet, GMT topo, MPL terrain (NCL), NCL temp 19lev, NCL topo 15lev, NCL wind 17lev
• All colormaps