Spectrogram For Hydrophone Viewer
The Spectrogram For Hydrophone Viewer is intended only for use in a data visualization tool that is currently under development, therefore we do not expect users to find this page. However, some initial documentation is required for our process.
The plots are very similar to the spectrograms produced by dataproduct 45 documented here: 45. However, there are additional options available with this data product.
Oceans 3.0 API filter: dataProductCode=SHV
Revision History
- 20190807 development started
Data Product Options
There are currently three data product options associated with this data product. Both alter the presentation of the data within the spectrogram.
Colour Palette:
- Default colourmap (from ONC)
- Oceans 3.0 API filter:
spectrogramColourPalette = 0 - Sequential Blue to Purple (perceptually balanced - from colorbrewer.org)
- Oceans 3.0 API filter:
spectrogramColourPalette = 1 - Grayscale (perceptually balanced - from MATLAB Gray)
- Oceans 3.0 API filter:
spectrogramColourPalette = 2 - Sequential Dark Blue to Dark Red (perceptually balanced - from mycarta.wordpress.com/color-palettes)
- Oceans 3.0 API filter:
spectrogramColourPalette = 3 - Sequential Burgundy to Beige (perceptually balanced - from mycarta.wordpress.com/color-palettes)
- Oceans 3.0 API filter:
spectrogramColourPalette = 4 - Sequential Fuschia to Chartreuse (perceptually balanced - from mycarta.wordpress.com/color-palettes)
- Oceans 3.0 API filter:
spectrogramColourPalette = 5
Upper Colour Limit:
- Default (use device calibration values)
- Oceans 3.0 API filter:
upperColourLimit= -1 - Specific upper colour limit (value between 0 and 140)
- Oceans 3.0 API filter:
upperColourLimit= 0 to 140
Lower Colour Limit:
- Default (use device calibration values)
- Oceans 3.0 API filter:
lowerColourLimit= -1 - Specific lower colour limit (value between 0 and 140)
- Oceans 3.0 API filter:
lowerColourLimit= 0 to 140
Formats
Plots are available in PNG format.
Oceans 3.0 API filter: extension={png}