International Journal on Science and Technology

E-ISSN: 2229-7677   •   Impact Factor: 9.88

A Widely Indexed Open Access Peer Reviewed Multidisciplinary Bi-monthly Scholarly International Journal

Call for Paper Volume 17 Issue 1 January-March 2026 Submit your research before last 3 days of March to publish your research paper in the issue of January-March.
Submit Research Paper Join as a Reviewer

Plagiarism is checked by the leading plagiarism checker TurnItIn

Call for Paper

Volume 17 Issue 1
January-March 2026

Submit your research paper

Indexing Partners
Academia Advanced Sciences Index Bielefeld Academic Search Engine CiteSeer DRJI Google Scholar Independent Search Engine & Directory Network ISI (International Scientific Indexing) Issuu Mendeley Research Networks
RefSeek ResearcherId - Thomson Reuters ResearchGate Scirus Scribd Semantic Scholar UTeM - Universiti Teknikal Malaysia Melaka Wiki for Call for Papers WorldCat Zenodo

GIS-Based Flood Risk Assessment Using DEM-Derived Hydrological Indices with Mitigation Measures

Author(s) Ms. Anuradha Madhav Sangwai, Dr. Ajay Devidas Nagne
Country India
Abstract Flooding is a recurring natural hazard in the Krishna River basin of Maharashtra, leading to considerable damage to human settlements, agricultural land, and infrastructure. Therefore, identifying flood-prone areas effectively is essential for developing suitable mitigation strategies. The current study uses Shuttle Radar Topography Mission (SRTM) Digital Elevation Model (DEM) data processed in ArcGIS 10.8 to evaluate flood risk and propose flood mitigation strategies using a GIS-based terrain analysis approach. To extract topographic and hydrological parameters such as slope, flow direction, flow accumulation, topographic wetness index (TWI) and stream power index (SPI) were derived from digital elevation model. These parameters were used to understand patterns of water accumulation and flow velocity across the river basin. The results show that low-lying downstream areas and river floodplains are more vulnerable to flooding than areas with gentle slopes, high flow accumulation, elevated TWI, and high SPI values. The analysis highlights the importance of TWI in identifying zones at risk of extended saturation and waterlogging, even when SPI is successful in identifying active flood paths and locations of intense flow energy. The spatial analysis of these indices led to the proposal of both structural and non-structural flood mitigation strategies. The study demonstrates that DEM-based hydrological analysis using GIS provides a reliable and user-friendly framework for flood risk assessment and mitigation planning.
Keywords DEM, Flood, GIS, Mitigation, SPI, STRM, TWI
Field Computer Applications
Published In Volume 16, Issue 4, October-December 2025
Published On 2025-12-28
DOI https://doi.org/10.71097/IJSAT.v16.i4.9999
Short DOI https://doi.org/hbhj59
View / Download PDF File

Share this


CrossRef

CrossRef DOI is assigned to each research paper published in our journal.

IJSAT DOI prefix is
10.71097/IJSAT

Downloads
Research Paper Format Copyright Permission Form and Undertaking Form Cover Page Vol 16 Isu 3Cover Page Vol 16 Isu 2Cover Page Vol 16 Isu 1

All research papers published on this website are licensed under Creative Commons Attribution-ShareAlike 4.0 International License, and all rights belong to their respective authors/researchers.

CC-BY-SA Open Access

About IJSAT
Fees & Payment
Current Issue
Publication Archive 		Submit Research Paper
Track Submission Status
Publication Guidelines
Publication Ethics
Peer Review & Plagiarism 		Join as a Reviewer
Editors & Reviewers
Reviewer Referral Program
Get Reviewer Membership Certi. 		Website/Journal Policies
Usage Policy
Content Policies
Privacy Policy
Contact Us Message on WhatsApp +91-9687-182-185 editor@ijsat.org