Esri Ocean basemap color style available for download

By Aileen Buckley and Jaynya Richards, Esri Research Cartographers, and Michael Wilburn, Esri Ocean Basemap Cartographer

Ocean Basemap color style - ThumbnailEsri released its beautiful Ocean Basemap in June 2011. Some of you have been asking for a style that contains the colors used to symbolize the bathymetry in that basemap. Now you can download the Ocean Basemap color style, which contains the colors used to display the bathymetry in the Esri Ocean Basemap.

The colors in the style were used for the bathymetric layer tint at small and medium map scales (figure 1). Small map scales range from about 1:593 million to about 1:2 million, and medium map scales range from about 1:1 million to about 1:72 thousand.

Ocean Basemap color style - Colors

Figure 1. The colors in the style were used to render the Ocean Basemap bathymetry at small and medium map scales.

These colors will appear in the color palette when you reference the Ocean Basemap color style (figure 2).

Ocean Basemap color style - Color Palette

Figure 2. The colors in the referenced style are displayed in the color palette.

The Ocean Basemap was symbolized using these colors and the Classified renderer in ArcMap. The class breaks are shown below in figure 3, along with the colors in the style that were assigned to the classes.

Ocean Basemap color style - Classes

Figure 3. The class breaks and related colors were used with the Classified renderer to create the Ocean Basemap.

You can use the colors in the style and the breaks above to symbolize data in your map using the Classified renderer (figure 4).

Ocean Basemap color style - Classified Renderer

Figure 4. The Classified renderer can be used with the colors and class breaks shown in figure 3.

The result will look similar to the Esri Ocean Basemap, although the map in figure 5 is shown without the hillshade or labels.

Ocean Basemap color style - ArcMap - Classified Renderer

Figure 5. The result of using the Classified renderer and the colors/breaks in figure 3 is shown above.

The Ocean Basemap color style also contains color ramps that were created with the colors used to symbolize the Ocean Basemap bathymetry (figure 6). There are two color ramps, one with the colors used for the smaller map scales and one for the medium map scales.

Ocean Basemap color style - Color Ramps

Figure 6. The two color ramps that are included in the download were created with the colors used to symbolize the bathymetric layer tint in the Esri Ocean Basemap.

The color ramps in the style can be used to symbolize data using the Stretched
renderer (figure 7). A Minimum-Maximum stretch can be used to set the minimum value to zero, thus rendering the areas above land in white.

Ocean Basemap color style - Stretched Renderer

Figure 7. The Stretched renderer can be used with the color ramps.

The result will look a little different from the Esri Ocean basemap because the colors are not assigned to exactly the same elevation ranges (figure 8) as with the Classified renderer. Nonetheless, for some applications, these color ramps may prove useful to you.

Ocean Basemap color style - ArcMap - Stretched Renderer

Figure 8. The result of using the Stretched renderer and the Bathymetry Small Scale color ramp.

Download the Ocean Basemap color style now to create your own great bathymetric maps with ArcMap!

This entry was posted in ArcGIS Online, Mapping, Oceans & Maritime and tagged , , , , , , . Bookmark the permalink.

Leave a Reply

2 Comments

  1. pebirch says:

    I cannot get either of the Colour Ramps to show up in the Layer Properties selection drop down menu, even when I copy the colour ramp into a new Style file and rename it. Also when I try to use the Layer File, there is an error message informing me that the Layer file does not consist of “Rasterlayer”.

    Is this just for ArcMap 10.1? I am using ArcMap 10 and Gebco worth bathymetry layer in GRID format.

    Furthermore, I end up going round and round in circles when I try to access the Ocean Basemap on ArcGIS Online, where my login is not recognised, despite setting up an Esri User account and a Global account and registering them both.

    • abuckley says:

      To see the color ramps in ArcMap, you need to delete the category values in the style. To do this, use Style Manager to view the color ramps, and you will see text for the categories. Simply delete this text and the color ramps will be displayed when you look for them.

      In the meantime, I have deleted the category text in the style and reposted the download, so another solution is to simply re-download the style and use the updated version.

      For your information, the category for most color ramps is often populated with either “Default Ramps”, “Dichromatic Ramps”, “Spatial Ramps”, or “Default Schemes”. There are also a few “Geostatistical Ramps”. The Color Scheme dropdown on the Layer Properties > Symbology dialog lists all Color Ramp styles except for those in the Default Ramps and Dichromatic Ramps categories. The Color Ramp dropdown on the Layer Properties > Symbology dialog lists all Color Ramp styles except for those in the Default Schemes and Dichromatic Ramps categories. Here is a Knowledge Base article on this topic: http://support.esri.com/en/knowledgebase/techarticles/detail/21748