Bayesian and Non-Bayesian Methodologies to Hydrological Flood Frequency Analysis DOI

Alam Zeb Khan,

Ahmed Karmaoui, Ishfaq Ahmad

et al.

Advances in environmental engineering and green technologies book series, Journal Year: 2024, Volume and Issue: unknown, P. 181 - 204

Published: Nov. 29, 2024

Climate change (CC) impacts extreme weather events such as conditions, temperature changes, droughts, and floods necessitating accurate flood frequency analysis (FFA) for risk assessment. In this chapter, Bayesian non-Bayesian methods were compared at-site FFA forecasting particularly in the context of CC on hydrological processes using data from three sites Pakistan. Generalized Extreme Value Distribution (GEV) was best fit these sites. Markov Chain Monte Carlo (MCMC) simulations with Metropolis-Hastings (M-H) sampling procedure estimated uncertainty quantification. method outperformed, lower standard errors more parameter estimates. Safety amendments affirmed robustness mitigating risks improving water resource management. Findings support advantage approach that contribute management strategies amidst climate challenges. Study underscores importance enhancing practices change.

Language: Английский

Climate change during the Holocene in South Asia: A review study of Pakistan DOI
Syed Asim Hussain, Liangcheng Tan, Gayatri Kathayat

et al.

Quaternary Science Reviews, Journal Year: 2025, Volume and Issue: 352, P. 109203 - 109203

Published: Jan. 25, 2025

Language: Английский

Citations

0

Detection and characterization of scale-invariant behaviour and stochastic downscaling of terrestrial water storage anomalies from GRACE and GPS DOI
Muhammad Ukasha, Jorge A. Ramı́rez, Jeffrey D. Niemann

et al.

International Journal of Remote Sensing, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 31

Published: Jan. 26, 2025

Language: Английский

Citations

0

Localized environmental variability within the Hindukush-Himalayan region of Pakistan DOI Creative Commons
Fazlul Haq,

Munazza Afreen,

Bryan G. Mark

et al.

Environmental Earth Sciences, Journal Year: 2025, Volume and Issue: 84(4)

Published: Feb. 1, 2025

Abstract The Hindukush-Himalayan (HKH) region, known for its eco-environmental importance, has been witnessing transformations in recent years governed by factors such as climate variability, land use shifts, and population growth. These changes have profound implications regional sustainability, water resources, livelihood. This study attempts to explore the spatial temporal variability selected environmental parameters including surface temperature (LST), normalized difference vegetation index (NDVI), precipitation patterns, snow (NDSI), cover (LULC) from 1990 2022 using Landsat imageries (30 m resolution), CHIRPS data at 0.05° resolution. area spans 32,000 km 2 covering two major political/administrative divisions (Malakand Hazara) HKH region of Pakistan. was primarily because unprecedented over last three decades. For detailed analysis, divided into five elevation zones LST, NDVI, NDSI, LULC analyses were conducted utilizing Google Earth Engine (GEE) platform engine. results revealed a notable rise LST lowest zone. NDVI noticeable decline 5988 1990, 4225 2010, followed growth 7669 2022, since 2010 after launching Billion Tree Tsunami Afforestation Project (BTTAP) 2013. Likewise, patterns exhibit transitioning low high levels. However, most finding is marked covered 7000 3800 between 2022.

Language: Английский

Citations

0

Few-shot SAR image classification via multiple prototypes ensemble DOI
Zhiqiang Zhao,

Yuhui Tong,

Jia Meng

et al.

Neurocomputing, Journal Year: 2025, Volume and Issue: unknown, P. 129989 - 129989

Published: March 1, 2025

Language: Английский

Citations

0

Underestimated Risk of Glacial Lake Outburst Floods in the Himalayas DOI
Fang Chen,

Weigui Guan,

Meimei Zhang

et al.

Published: April 9, 2025

Abstract Glacial lake outburst floods (GLOFs) in the Himalayas have caused severe consequences for downstream communities, including loss of life and substantial economic damage. The accelerated global atmospheric warming further heightens GLOF risks. However, a gap uncertainties underlying hazard vulnerability constrains accurate cognition potential threats. Here we developed glacial inventory systematically assessed hazard, exposure, comprehensive risks all lakes ten hotspot sub-basins using DEM-based stochastic framework, numerical model social census dataset. From 2015 to 2020, areas expanded by 6.52 ± 1.07 km² (0.8% annually). 38% pose high impacting 51% population 76% infrastructure. Northeastern Bhutan exhibits higher than India, Nepal Tibet, yet remains underexplored. Kuri Chu Dangme are particularly high-risk areas, with 10% previously underestimated. This work contributes developing an effective risk assessment criteria, underscoring need systematic study other glacierized regions.

Language: Английский

Citations

0

Mapping a Knowledge Graph of Flooding in Academic Literature Through Full‐Text Entity Extraction DOI
Min Zhang, Juanle Wang, Xiaodong Zhang

et al.

Transactions in GIS, Journal Year: 2025, Volume and Issue: 29(2)

Published: April 1, 2025

ABSTRACT Academic literature with long‐tail characteristics contains rich knowledge resources but is not easily discovered through limited manual extraction capabilities. This study proposed a refined strategy, transitioning from “full text to sentence,” in the field of flood disaster risk reduction. Sentences describing research methods were identified full texts 5180 articles published between 1990 and 2020. Research method entities—including algorithms, software, data—were extracted using optimal deep learning models. A flooding graph was constructed applied several control scenarios. The results showed that BiLSTM‐CRF model outperformed more complex alternatives. In all, 2144 methods, 291 software tools, six types remote sensing data sources obtained based on usage sentences. contained 42,420 nodes 78,242 edges. entity provides reference for related mapping big data.

Language: Английский

Citations

0

Understanding flood dynamics in the Indus River Basin: Lessons from the 2022 Pakistan deluge DOI
Aashutosh Aryal, Kyung Y. Kim,

Venkataraman Lakshmi

et al.

Journal of Hydrology Regional Studies, Journal Year: 2025, Volume and Issue: 59, P. 102362 - 102362

Published: April 12, 2025

Language: Английский

Citations

0

Integrated optical and SAR data analysis for the monsoonal flood hazard mapping in the Tawi Basin Northwest Himalaya DOI
Ajay Kumar Taloor, Varun Khajuria, Savati Sharma

et al.

Physics and Chemistry of the Earth Parts A/B/C, Journal Year: 2025, Volume and Issue: unknown, P. 103948 - 103948

Published: April 1, 2025

Language: Английский

Citations

0

Revealing the spatiotemporal evolution of the 2024 extreme flood in Guangdong Province: Insights from GRACE-FO and in situ measurements DOI
Sulan Liu, Yunlong Wu, Guodong Xu

et al.

Journal of Hydrology Regional Studies, Journal Year: 2025, Volume and Issue: 59, P. 102451 - 102451

Published: May 10, 2025

Language: Английский

Citations

0

Media, Disasters, and the Global South: Comparing Global North and South Media Framing on Pakistan’s 2022 Floods DOI Creative Commons

Sarwar Khawaja,

Shahbaz Aslam, Muhammad Yousaf

et al.

Journalism and Media, Journal Year: 2025, Volume and Issue: 6(2), P. 70 - 70

Published: May 8, 2025

The 2022 floods in Pakistan, one of the most recent catastrophic natural disasters, highlighted critical vulnerabilities governance, infrastructure, and climate resilience. This study investigates framing newspapers from Global North South. under investigation included Guardian, New York Times, Times India, Dawn. used a cross-sectional research design. Under rubric theory, utilizing quantitative content analysis, examines prevalence key frames press findings revealed dominance solution, vulnerability, responsibility frames. Moreover, South framed human causes, i.e., larger societal forces, as responsible, rather than causes. In addition, victimization frame is more focused community-led efforts. Notably, solutions primarily emphasized international aid adaptation, other local governance community adaptation These results underscore dual role media both advocates for global justice narrators humanitarian crises, while also highlighting gaps resilience narratives agency. contributes to theory by exploring interplay disaster reporting. It emphasizes need balanced, actionable discourse on climate-induced disasters ensure justice.

Language: Английский

Citations

0