1. Introduction

The MERIT DEM was developed by removing multiple error components (absolute bias, stripe noise, speckle noise, and tree height bias) from the existing spaceborne DEMs (SRTM3 v2.1 and AW3D-30m v1). It represents the terrain elevations at a 3sec resolution (-90m at the equator), and covers land areas between 90N-60S, referenced to EGM96 geoid.

Download: http://hydro.iis.u-tokyo.ac.jp/~yamadai/MERIT_DEM/

2. Reference

Yamazaki, D., Ikeshima, D., Tawatari, R., Yamaguchi, T., O’Loughlin, F., Neal, J. C., … & Bates, P. D. (2017). A high‐accuracy map of global terrain elevations. Geophysical Research Letters, 44(11), 5844-5853. https://doi.org/10.1002/2017GL072874