@article{202009.0034, doi = {10.20944/preprints202009.0034.v1}, url = {https://doi.org/10.20944/preprints202009.0034.v1}, year = 2020, month = {September}, publisher = {Preprints}, author = {Hareya Biryhane and Tulu B. Bedada and Berhan Gessesse and Martin Vermeer}, title = {Validation of Airborne Sensor Photogrammetric Digital Terrain and Global Digital Elevation Models around Mekelle City, Ethiopia}, journal = {Preprints} }