Introduction

A style defines how underlying data gets visualized. When dealing with raster data this usually means having a value-color mapping, either categorized or graduated.

It is possible to refer to a specific style when sending a GetMap request to a Web Map Service (WMS), resulting in accordingly rendered images. If no style is specified, a default style will be used.

This page describes which pre-defined and curated styles (static styles) our spatial data infrastructure offers and how our customizable styles (template/dynamic styles) work. All styles offered are as SLD files (Styled Layer Descriptor).

Raster Layers

Static Styles

Style NameLegend Preview

GlobColour2

SeaIceConcentration2

SeaIceThickness2

haxby_5000

haxby_8000

Template/Dynamic Styles

There are eight "empty" styles available which can be manipulated to one's needs. If used without any changes they will default to values between 0 and 1 being mapped to a viridis color ramp (with 3 to 9 defined color steps) or to a two-step black-white color ramp. In between these defined color steps a value's color will gradually change. The following table shows styles template_2col and template_5col as examples. Style names go up to template_9col .

Color (RGB hexvalue), opacity, value (quantity) and label (how it appears in the legend) are variables which can be specified explicitly in a GetMap request.

Style NameDefault LegendSLD File Excerpt
template_2col

Style: template_2col 
<sld:ColorMap>
  <sld:ColorMapEntry color="${env('colnv','#000000')}" opacity="${env('opanv',0.0)}" quantity="${env('valnv',-1)}" label="${env('labnv','no value')}"/>
  <sld:ColorMapEntry color="${env('col1','#FFFFFF')}"  opacity="${env('opa1',1.0)}"  quantity="${env('val1',0)}"   label="${env('lab1','min')}"/>
  <sld:ColorMapEntry color="${env('col2','#000000')}"  opacity="${env('opa2',1.0)}"  quantity="${env('val2',1)}"   label="${env('lab2','max')}"/>
</sld:ColorMap>
template_5col

Style: template_5col 
<sld:ColorMap>
  <sld:ColorMapEntry color="${env('colnv','#000000')}" opacity="${env('opanv',0.0)}" quantity="${env('valnv',-1)}"  label="${env('labnv','no value')}"/>
  <sld:ColorMapEntry color="${env('col1','#FDE725')}"  opacity="${env('opa1',1.0)}"  quantity="${env('val1',0)}"    label="${env('lab1','min')}"/>
  <sld:ColorMapEntry color="${env('col2','#5DC863')}"  opacity="${env('opa2',1.0)}"  quantity="${env('val2',0.25)}" label="${env('lab2','')}"/>
  <sld:ColorMapEntry color="${env('col3','#21908C')}"  opacity="${env('opa3',1.0)}"  quantity="${env('val3',0.5)}"  label="${env('lab3','')}"/>
  <sld:ColorMapEntry color="${env('col4','#3B528B')}"  opacity="${env('opa4',1.0)}"  quantity="${env('val4',0.75)}" label="${env('lab4','')}"/>
  <sld:ColorMapEntry color="${env('col5','#440154')}"  opacity="${env('opa5',1.0)}"  quantity="${env('val5',1)}"    label="${env('lab5','max')}"/>
</sld:ColorMap>

template_3col

template_4col

template_6col

template_7col

template_8col

template_9col

like abovelike above
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