Bathymetry Symbology - ColorHillshadeBAG Processing Template color scheme changed (for the worse)

SonarBATStructureMAPS — Fri, 28 Jul 2023 07:05:57 GMT

Sometime around the release of ArcGIS Pro 3.0 (maybe earlier), the bag bathymetry hosted imagery changed the way the color schemes are rendered. This seems to be an issue on any platform that display the bag bathymetry image services i.e. ArcGIS Pro, ArcGIS Online, ArcMAP, etc. Here's link to one of the hosted services that I'm seeing the issue on: https://gis.ngdc.noaa.gov/arcgis/services/bag_bathymetry/ImageServer/WMSServer

The symbology for the ColorHillshadeBAG Processing Template has changed on the NOAA Bathymetric Data Viewer as well, so doesn't seem to be isolated to ESRI hosted imagery: https://www.ncei.noaa.gov/maps/bathymetry/ .

The ColorHillshadeBAG Processing Template Description reads as follows (which has recently been updated to coincide with the issues with processing template symbology):

"An elevation-tinted shaded relief visualization, using Esri's "multidirectional hillshade". The elevation/depth is displayed using this color ramp: https://www.ncei.noaa.gov/maps/bathymetry/images/bag_color_scale_bukavu.png. This color ramp was adapted from the "bukavu" color ramp from: https://www.fabiocrameri.ch/colourmaps/."

Does anyone know why the color scheme doesn't seem to display as expected. This new scheme is pretty lame (visually). Any thoughts on how to get the old color scheme to display? The Dynamic Range Adjustment (DRA) also seems to be affected. Selecting the DRA option now results in a washed out color scheme that is almost impossible to see the imagery when zoomed in to view the hi-res imagery.

Here's a couple images how the bag bathymetry ColorHillshadeBAG processing template looked like before & after (whatever changes were implemented).

topic Bathymetry Symbology - ColorHillshadeBAG Processing Template color scheme changed (for the worse) in ArcGIS Image Server Questions

Bathymetry Symbology - ColorHillshadeBAG Processing Template color scheme changed (for the worse)