Snow, glaciers & runoff
How cryospheric processes regulate seasonal water availability and high flows in mountain catchments.
Nuaman Ejaz
PhD Researcher · Tsinghua University
Water science for a changing climate.
I study how climate variability, snow and glacier processes, drought, and hydrological change reshape water availability across high-mountain river basins.
0Peer-reviewed articles
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Current focus
Upper Indus hydroclimate & cryosphere
Hydro-glaciology•Drought propagation•Remote sensing•CMIP6 climate projections•Hydrological modelling•Machine learning•
Hydro-glaciology•Drought propagation•Remote sensing•CMIP6 climate projections•Hydrological modelling•Machine learning
About
Connecting climate, cryosphere and streamflow.
I am a PhD researcher in the Department of Hydraulic Engineering at Tsinghua University, working at the intersection of hydrology, climate science, Earth observation and data-driven modelling.
My research focuses on the Upper Indus River system, where snow, glaciers, monsoon rainfall and westerly disturbances interact to create complex streamflow and drought responses.
Research
Research Interests
From physical processes to future climate risk, my work combines multiple data sources and modelling approaches.
Drought propagation
How meteorological drought becomes hydrological drought, and how storage and cryosphere processes modify that pathway.
Future hydroclimate
How climate warming reorganizes precipitation, seasonality, streamflow and hydrological extremes.
Remote sensing
Using satellite observations to quantify snow persistence, groundwater storage, land use and environmental change.
Hydrological modelling
Evaluating process-based and conceptual models against strong benchmarks across contrasting hydroclimatic regimes.
Data-driven hydrology
Using machine learning as a diagnostic and predictive tool while retaining hydrological interpretation.
Current work
Research projects.
01
PhD · Upper Indus
Integrated glacio-hydrological modelling of streamflow variability under a changing climate
Process understanding, source partitioning, drought propagation, high-flow behaviour and future climate impacts across contrasting Indus headwater catchments.
02
Daily modelling
When predictive skill and hydrological process realism diverge
Comparison of DDD, forcing-only and hydrologically informed LSTMs with climatology and persistence benchmarks across five mountain catchments.
03
Groundwater · Earth observation
Groundwater dynamics and agricultural water use
GRACE-based storage assessment, groundwater modelling and remote-sensing analysis of cropping patterns and irrigation demand.
Publications
Selected research.
A sample of recent peer-reviewed work. The full publication list can later be linked to Google Scholar and ORCID.
Understanding groundwater dynamics of the depleted aquifer in the Indus Basin based on downscaled GRACE data and groundwater modelling
Journal of Hydrology: Regional Studies
Multi-scale meteorological and hydrological drought severity in a high-altitude Himalayan basin
Journal of Mountain Science
Remote sensing-based cropping pattern identification and its impact on groundwater use in canal command areas
Agricultural Water Management
A robust integrated agricultural drought index under climate and land-use variations at the local scale in Pakistan
Agricultural Water Management
Drought monitoring using Landsat-derived indices and the Google Earth Engine platform
Remote Sensing
ACADEMIC BACKGROUND
Education
Training across agricultural engineering, hydrology, water resources, remote sensing and hydraulic engineering.
Ph.D. in Hydraulic Engineering
Tsinghua University · Beijing, China
Doctoral research in hydrology and water resources, with emphasis on hydro-glaciology, climate change, drought, streamflow variability and the Indus headwaters.
M.Sc. in Hydrology & Water Resources Management
King Abdulaziz University · Jeddah, Saudi Arabia
Graduate research in drought, GIS and remote sensing, hydrological modelling, flood risk and water-resources analysis.
B.Sc. in Agricultural Engineering
University of Engineering & Technology Peshawar · Pakistan
Foundation in agricultural water management, irrigation, engineering and watershed-related applications.
ACADEMIC & PROFESSIONAL
Experience
Research, teaching and applied hydrology experience across academic and professional settings.
Doctoral Researcher
Tsinghua UniversityResearch on hydroclimatic variability, snow and glacier processes, drought, climate projections, remote sensing and hydrological modelling.
Teaching Assistant
Tsinghua UniversityTeaching support across consecutive semesters alongside doctoral research and thesis development.
Hydrological Consultant
Agro-Hydrological Services · PakistanApplied hydrology, water-resources analysis, GIS, remote sensing and modelling support.
Certified Teacher
Elementary & Secondary Education Department · PakistanProfessional teaching experience before graduate study in hydrology and water resources.
INTERNATIONAL ENGAGEMENT
Conferences & Academic Visits
Selected international presentations, workshops and academic field experiences.
AGU Fall Meeting
Washington, D.C., USA
Presented research at the American Geophysical Union Fall Meeting.
Glaciers of Central Asia Workshop
University of Central Asia · Khorog, Tajikistan
Selected participant in the Second International Workshop on Mountainous Environments, 10–15 October 2024.
ICSWE 2024
International Conference
Oral presentation on groundwater potentiality mapping in Wadi Yiba, Saudi Arabia; received a Best Oral Presentation Award.
University of Melbourne–Tsinghua Field Programme
Australia
International field and academic programme focused on water, environment and interdisciplinary research exchange.
Contact
Interested in collaboration?
I welcome research discussions in hydrology, hydroclimatology, cryosphere science, remote sensing, drought and water resources.