bathymetry

Elevation and coastal bathymetric model for Bonaire

Improved AsterDEM for Bonaire rescaled to 1-meter spatial resolution and 1m height resolution.

The ASTERDEM has been improved amongst others for making a bathymetric model and for that reason the ASTERDEM was converted to contour lines, and to improve the calculations extra height points were added for the lowlands of Bonaire, as well as extra measured sea depth points that were collected in a separate campaign to calculate a new bathymetric model that interpolated the improved DEM with the measured sea depth points.

Read this report for more details.

Please contact the DCBD administratorfor more information.

Date
2017
Data type
Maps and Charts
Theme
Research and monitoring
Geographic location
Bonaire
Image

Bathymetry survey Aruba

Hydrographical survey of Aruba in x,y,z points: latitude [decimal degrees], longitude [decimal degrees], depth [meters]. 

The survey was done using a multi-beam surveying: a multibeam echo sounder attached to a boat sends out a wide array of beams across a "swath" of the waterbody floor. As the beams are bounced back from the waterbody floor,  the data is collected and processed.

This information has been retrieved from caris website of the royal navy of the Dutch ministry of defense

Date
2018
Data type
Maps and Charts
Theme
Research and monitoring
Tags
Geographic location
Aruba
Image

Bathymetry survey Curacao

Hydrographical survey of Curacao in x,y,z points: latitude [decimal degrees], longitude [decimal degrees], depth [meters]. 

The survey was done using a multi-beam surveying: a multibeam echo sounder attached to a boat sends out a wide array of beams across a "swath" of the waterbody floor. As the beams are bounced back from the waterbody floor,  the data is collected and processed.

This information has been retrieved from caris website of the royal navy of the Dutch ministry of defense

Date
2018
Data type
Maps and Charts
Theme
Research and monitoring
Tags
Geographic location
Curacao
Image
Bathymetry Curacao

Bathymetry survey Bonaire

Hydrographical survey of Bonaire in x,y,z points: latitude [decimal degrees], longitude [decimal degrees], depth [meters]. 

The survey was done using a multi-beam surveying: a multibeam echo sounder attached to a boat sends out a wide array of beams across a "swath" of the waterbody floor. As the beams are bounced back from the waterbody floor,  the data is collected and processed.

This information has been retrieved from caris website of the royal navy of the Dutch ministry of defense

 

Date
2018
Data type
Maps and Charts
Theme
Research and monitoring
Tags
Geographic location
Bonaire
Image
Hydrography Bonaire

Lac bay depths (GIS)

Depth of Lac Bay in meters. Data acquired with lowrance HDS7 Gen 3 Totalscan transducer. The borders are not realiable. No map to snap to the coast/borders was available.

  • Microsoft Excel file (longitude, latitude, depth in feet) [original file]
  • Line shape file (*.shp) with depth isolines (m)
  • Geotiff at a resolution of 2x2 m. The original file was interpolated using Inverse Distance Weighting (IDW) with a maximum number of 12 points for a single cell value. Interpolation boundaries at 30 meter from any given point.

Legend:

  • -0.5 m    light yellow
  • -5 m       green 
  • -13.5 m  dark blue
Date
2017
Data type
Maps and Charts
Theme
Research and monitoring
Geographic location
Bonaire
Author

Diver Depth-Gauge Profiling beyond Wading Depths: A New Simple Method for Underwater Surveying

Surveying subaqueous beach profiles and features beyond wading depths can be a costly process, requiring use of expensive equipment and boats. This paper describes the materials and methods of a simple, low-cost technique for underwater bathymetric surveying, herein named the diver depth-gauge profiling (DDGP) method. Although accuracy of depth data depends on the quality of the depth gauges used, it is commonly within 0.3 m. Data collection reliability was evaluated by repeated underwater beach profile surveys, and an example of its use in the Caribbean is provided.

 

Date
2013
Data type
Scientific article
Theme
Research and monitoring
Geographic location
Saba