Projected changes in increased drought risks over South Asia under a warmer climate

I Ullah, X Ma, TG Asfaw, J Yin, V Iyakaremye… - Earth's …, 2022 - Wiley Online Library
Every year, millions of people are at risk due to droughts in South Asia (SA). The likely
impacts of droughts are projected to increase with global warming. This study uses the new …

Evaluating observed and future spatiotemporal changes in precipitation and temperature across China based on CMIP6‐GCMs

K Lu, M Arshad, X Ma, I Ullah, J Wang… - International Journal of …, 2022 - Wiley Online Library
The present study aimed to evaluate the performance of 46 global climate models (GCMs)
from the newly released Coupled Model Intercomparison Project Phase 6 (CMIP6) in the …

Spatiotemporal characteristics of meteorological drought variability and trends (1981–2020) over South Asia and the associated large-scale circulation patterns

I Ullah, X Ma, J Yin, A Omer, BA Habtemicheal… - Climate Dynamics, 2023 - Springer
The present study uses observation-based gridded air temperature and precipitation
datasets to investigate the spatiotemporal changes in meteorological drought from 1981 to …

A spatially distributed hydrodynamic model framework for urban flood hydrological and hydraulic processes involving drainage flow quantification

K Guo, M Guan, H Yan, X Xia - Journal of Hydrology, 2023 - Elsevier
Two-dimensional hydrodynamic models are increasingly used to predict overland surface
water flooding in urban catchments. The complexity of urban surfaces and subsurface …

Recent changes in drought events over South Asia and their possible linkages with climatic and dynamic factors

I Ullah, X Ma, G Ren, J Yin, V Iyakaremye, S Syed… - Remote Sensing, 2022 - mdpi.com
South Asia is home to one of the fastest-growing populations in Asia, and human activities
are leaving indelible marks on the land surface. Yet the likelihood of successive observed …

Assessing impacts of flood and drought over the Punjab Region of Pakistan using multi-satellite data products

R Ullah, J Khan, I Ullah, F Khan, Y Lee - Remote Sensing, 2023 - mdpi.com
The Punjab region of Pakistan faced significant losses from flash flooding in 2010 and
experienced a multiyear drought during 1998–2002. The current study illustrates the drought …

Multi-reservoir flood control operation using improved bald eagle search algorithm with ε constraint method

W Wang, W Tian, K Chau, H Zang, M Ma, Z Feng, D Xu - Water, 2023 - mdpi.com
The reservoir flood control operation problem has the characteristics of multiconstraint, high-
dimension, nonlinearity, and being difficult to solve. In order to better solve this problem, this …

[HTML][HTML] Recent and projected changes in water scarcity and unprecedented drought events over Southern Pakistan

I Ullah, XM Zeng, S Hina, S Syed, X Ma… - Frontiers in Earth …, 2023 - frontiersin.org
In recent decades, water scarcity is a significant constraint for socioeconomic development
and threatens livelihood in an agriculture-based developing country like Pakistan. The water …

Investigating Drought and Flood Evolution Based on Remote Sensing Data Products over the Punjab Region in Pakistan

R Ullah, J Khan, I Ullah, F Khan, Y Lee - Remote Sensing, 2023 - mdpi.com
Over the last five decades, Pakistan experienced its worst drought from 1998 to 2002 and its
worst flood in 2010. This study determined the record-breaking impacts of the droughts …

[PDF][PDF] Impacts of climate and land coverage changes on potential evapotranspiration and its sensitivity on drought phenomena over South Asia

S Ali, A Basit, M Umair, J Ni - International Journal of Climatology, 2024 - researchgate.net
Understanding the spatiotemporal historical drought pattern and their sensitivity effect on
potential evapotranspiration (PET) and vegetation coverage changes is essential for efficient …