A 10 arc-minute topography model derived from ETOPO1 (http://dx.doi.org/10.7289/V5C8276M)
Want LESS topography resolution in a regional or global map compared to ETOPO1, SRTM30, and ASTER? Well so did I and there was nothing to be found on the internet. So with a little help from GMT (http://gmt.soest.hawaii.edu/), I was able to fulfill my need and decided to make this effort widely available. All credit goes to the folks at NGDC@NOAA for producing an amazing topography model and the GMT community for a great software product. Enjoy!