Global Multi-Resolution Topography (GMRT) Data Synthesis

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Overview

Marine Geoscience Data System logo The Global Multi-Resolution Topography (GMRT) synthesis is a multi-resolutional compilation of edited multibeam sonar data collected by scientists and institutions worldwide, that is reviewed, processed and gridded by the MGDS Team and merged into a single continuously updated compilation of global elevation data. The synthesis began in 1992 as the Ridge Multibeam Synthesis (RMBS), was expanded to include multibeam bathymetry data from the Southern Ocean, and now includes bathymetry from throughout the global and coastal oceans. GMRT is included in the ocean basemap in Google Earth (since June 2011) and the GEBCO 2014 compilation.

Data is accessed through the GMRT GridServer Web Service. OpenTopography provides a user interface for using the web service and enables users to utilize OpenTopography processing tools, such as visualization and advanced hydrologic terrain analysis (TauDEM).
Platform: Bathymetric Data
Survey Area: N/A
Raster Resolution: 100 meter
Survey Date: 01/01/1992
Full Metadata
Data Citation
Use License: Not Provided
Partners:   MGDS, IEDA, LDEO    

Other Available Data Products:     Bulk Download  
1. Select area of data to process:    
  Usage Heat Map
 

1. Coordinates

Horizontal Coordinates: WGS84 [EPSG: 4326]
Vertical Coordinates: WGS84
Units: degree

Data Selection Coordinates:       Manually enter selection coordinates (in the horizontal coordinate system listed above)  

2. Data Output Formats

  Select Data Output Format:
  Select Data Output Resolution:
  Fill null areas with GEBCO:

3. Raster Visualization  

Visualization type:
  Hillshade
  Color-relief
  Color hillshade
  Slope
  Aspect
  Roughness

4. Hydrologic Terrain Analysis Products (tauDEM):  

This tauDEM is an advanced processing service. It is available for registered users, who understand these resource intensive algorithms and its products.
In order to access or enable this service, please log in or request an account.

Job Description

These options allow users to describe and keep track of their jobs. Information entered below is recorded along with other job parameters in your personal lidar job archive accessed via myOpenTopo (available only to registered OpenTopography users).

Job title (up to 150 characters)
Job description (up to 750 characters)
Enter your e-mail address
for notification upon completion of processing
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By accessing data via OpenTopography you agree to acknowledge OpenTopography and the dataset source in publications, presentations, and other materials produced using these data:
Data Citation     |     Use License: Not Provided