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Can the Bathymetry in CDAT or used by cwrender be updated?

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MS
Michael Soracco, modified 4 Years ago.

Can the Bathymetry in CDAT or used by cwrender be updated?

Youngling Posts: 40 Join Date: 8/11/16 Recent Posts

Rendered contours off the east coast of Florida do not match other sources of bathymetry very well.  Can this be updated?

cwrender bathymetry etopo5 depth contour
MS
Michael Soracco, modified 4 Years ago.

RE: Can the Bathymetry in CDAT or used by cwrender be updated?

Youngling Posts: 40 Join Date: 8/11/16 Recent Posts

The CW Utilities use embedded ETOPO5 data for contouring topography.  There are some regions where this data does not match well with other hydrographic data.  ETOPO1 is available but the size prohibits embedding into the software distribution.  CoastWatch is looking into a software feature enhancement to allow a user to optionally install this update either upon installation or on demand when used.  In the interim,  the ETOPO1 file can be utilized by downloading the CW modified dataset (compressed, reformatted) and placing in the software packages' data/noaa/coastwatch/render directory.  Move the existing etopo5.hdf to a backup file (i.e.  etopo5.hdf.backup) and rename the ETOPO1 file to  "etopo5.hdf" in it's place, and restart CDAT.  The file should be picked up by the software.  

 

The ETOPO1 file can be downloaded from https://coastwatch.noaa.gov/cw_html/cwf/ETOPO1_Bed_g_gmt4.hdf

cdat cwrender bathymetry etopo contours topography