Tesfay Gebretsadkan Gebremicael was born in Adwa, Ethiopia. He received his BSc degree in Agricultural Engineering from Hawasa University, Ethiopia, in 2006. Thereafter, he joined the Tigray Agricultural Research Institute (TARI), where he worked as an associate researcher in water resources and irrigation engineering. From October 2009 to June 2011, he followed the MSc programme in Water Resources Management, at UNESCO-IHE Institute for Water Education in Delft, The Netherlands. After obtaining his MSc degree, he returned to Ethiopia and continued to work with TARI as researcher in water resources and hydrology. In 2015, he started his PhD studies at UNESCO-IHE. During his PhD research, he studied the hydrology of the Upper Tekeze basin at various spatio-scales using a combination of different methods. His research interests include catchment hydrology, hydrological and river systems modelling, water resources management, spatial and remote sensing analysis and irrigation water management. He has presented his work at various national, regional and international conferences and has published several articles in international journals.

• Summary, Introduction, Study area description, Evaluation of satellite products in the Upper Tekeze basin, Temporal and spatial changes of rainfall and streamflow, Quantifying longitudinal land use/cover change in Geba catchment, Modelling hydrological response to land management dynamics, Modelling the impact of catchment management interventions on the low flows, Conclusion and recommendations, References.

Tesfay Gebretsadkan Gebremicael was born in Adwa, Ethiopia. He received his BSc degree in Agricultural Engineering from Hawasa University, Ethiopia, in 2006. Thereafter, he joined the Tigray Agricultural Research Institute (TARI), where he worked as an associate researcher in water resources and irrigation engineering. From October 2009 to June 2011, he followed the MSc programme in Water Resources Management, at UNESCO-IHE Institute for Water Education in Delft, The Netherlands. After obtaining his MSc degree, he returned to Ethiopia and continued to work with TARI as researcher in water resources and hydrology. In 2015, he started his PhD studies at UNESCO-IHE. During his PhD research, he studied the hydrology of the Upper Tekeze basin at various spatio-scales using a combination of different methods. His research interests include catchment hydrology, hydrological and river systems modelling, water resources management, spatial and remote sensing analysis and irrigation water management. He has presented his work at various national, regional and international conferences and has published several articles in international journals.

• Summary, Introduction, Study area description, Evaluation of satellite products in the Upper Tekeze basin, Temporal and spatial changes of rainfall and streamflow, Quantifying longitudinal land use/cover change in Geba catchment, Modelling hydrological response to land management dynamics, Modelling the impact of catchment management interventions on the low flows, Conclusion and recommendations, References.

Tesfay Gebretsadkan Gebremicael was born in Adwa, Ethiopia. He received his BSc degree in Agricultural Engineering from Hawasa University, Ethiopia, in 2006. Thereafter, he joined the Tigray Agricultural Research Institute (TARI), where he worked as an associate researcher in water resources and irrigation engineering. From October 2009 to June 2011, he followed the MSc programme in Water Resources Management, at UNESCO-IHE Institute for Water Education in Delft, The Netherlands. After obtaining his MSc degree, he returned to Ethiopia and continued to work with TARI as researcher in water resources and hydrology. In 2015, he started his PhD studies at UNESCO-IHE. During his PhD research, he studied the hydrology of the Upper Tekeze basin at various spatio-scales using a combination of different methods. His research interests include catchment hydrology, hydrological and river systems modelling, water resources management, spatial and remote sensing analysis and irrigation water management. He has presented his work at various national, regional and international conferences and has published several articles in international journals.

• Summary, Introduction, Study area description, Evaluation of satellite products in the Upper Tekeze basin, Temporal and spatial changes of rainfall and streamflow, Quantifying longitudinal land use/cover change in Geba catchment, Modelling hydrological response to land management dynamics, Modelling the impact of catchment management interventions on the low flows, Conclusion and recommendations, References.