Flood Hazard Risk Analysis with Remote Sensing and GIS/AHP from Udemy

Hello,

The weights and effects of 10 different layers were calculated for the Flood Risk Analysis with the AHP /multi criteria decision method with ArcGIS Pro. The use of Geographic Information Systems (GIS) and Remote Sensing in risk analysis studies are increasing day by day.

Geographic Information Systems are used to collect, process and analyze existing data in order to identify potential risk areas. In this study, Flood Risk Analysis areas of the city of Chennai district were determined by GIS techniques.

In the modeling phase, the Weighted Overlay Analysis method was applied and digital maps .

There are 6 sections and 36 videos. Totally, 5 hours 40 minutes.

Which analysis that we need?

Elevation,

Slope,

Topographic Wetness İndex

Curvature Analysis,

Precipitation Analysis (By using Schriber Method)

NDVI Analysis,

Landuse and Landcover Analysis,

Distance to stream Analysis/Proximity Analysis

Drainage Density Analysis

Geomorphology Analysis (Jennes Tools/I will provide this tool to you as freely)

You will learn from where to download and how the data to be used in the analysis, what geographical processes it goes through and how it is prepared for analysis.

Raster and vector data how to be prepared one by one, projection conversion operations, adding fields and the shortcuts that will speed up your process when converting from raster to vector and from vector to raster will be especially useful for you. Based on this study, it has been prepared as a resource for you to do a similar study about any part of the world. By sharing the data I used throughout the study with you, I allow you to practice.

What's inside

Syllabus

Presentation

Methods/Road Map

Section 1/Downloading Free Datas

How to download study boundary data

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what should give you pause

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Employs ArcGIS Pro, which is a leading software in the GIS industry, for conducting flood risk analysis

Utilizes the Analytical Hierarchy Process (AHP), a multi-criteria decision-making method, for weighting different risk factors

Covers a range of essential analyses, including elevation, slope, TWI, curvature, precipitation, NDVI, land use, drainage density, and geomorphology

Requires familiarity with GIS software and remote sensing principles, which may necessitate prior experience or coursework

Focuses on a specific case study (Chennai district), which may limit the generalizability of the findings to other regions

Relies on Jennes Tools for geomorphology analysis, which may require learners to independently source and install this tool

Reviews summary

Practical flood risk analysis workflow

According to learners, this course provides a practical, step-by-step guide to performing flood hazard risk analysis using Remote Sensing, GIS, and AHP. Students find the hands-on workflow particularly valuable, appreciating that the instructor provides the necessary data and tools to follow along. However, many highlight that the course is not ideal for absolute beginners, as it assumes a foundational understanding of GIS and remote sensing concepts and software (specifically ArcGIS Pro). While the course covers the integration of AHP into the GIS workflow, some reviewers felt the AHP explanation could be more in-depth. Overall, it is seen as a solid resource for those with existing GIS knowledge looking to apply it to flood risk modeling.

AHP section could be more in-depth for some.

"The AHP part was a bit fast, but the GIS steps were very detailed."

"...perhaps could be explained deeper."

"Solid workflow demonstration. Covers the key GIS processes well. AHP integration is the unique part, though perhaps could be explained deeper."

Course provides useful data and tools for practice.

"Providing the data was a huge help."

"Jennes Tools provided were useful."

"By sharing the data I used throughout the study with you, I allow you to practice."

Excellent step-by-step practical guide.

"Excellent practical guide! Step-by-step instructions were clear and easy to follow."

"This course walks you through the entire process hands-on. The practical examples... were great."

"Exactly what I needed! A practical guide to apply GIS/RS for flood risk. The weighted overlay part was clearly explained."

"The practical aspect and the detail in explaining each step of the analysis workflow are commendable."

Some users note audio/video quality issues.

"The videos were sometimes hard to understand due to accent/audio quality."

"Okay course. The videos were sometimes hard to understand..."

"Some steps were confusing or rushed in the video demonstrations."

Course is best suited for learners with GIS basics.

"The course assumes too much prior knowledge."

"If you're not already familiar with GIS basics, you'll struggle."

"maybe not for beginners. It's better if you have some prior experience with ArcGIS Pro and spatial data."

"Useful for seeing the process, but maybe not for beginners without any GIS background."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Flood Hazard Risk Analysis with Remote Sensing and GIS/AHP with these activities:

Review GIS Fundamentals

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Strengthen your understanding of GIS principles to better grasp the spatial analysis techniques used in flood hazard risk assessment.

Browse courses on Geographic Information Systems

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Review basic GIS concepts like projections, coordinate systems, and data types.
Practice performing basic spatial operations such as buffering, overlay, and geocoding.
Familiarize yourself with common GIS software interfaces and tools.

Brush Up on Remote Sensing Principles

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Revisit the fundamentals of remote sensing to better understand how satellite imagery is used to derive data for flood risk analysis.

Browse courses on Remote Sensing

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Review the electromagnetic spectrum and how different sensors capture data.
Understand the principles of image classification and spectral indices like NDVI.
Learn about different types of remote sensing platforms and their applications.

Read 'GIS Tutorial 1: Basic Workbook'

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Reinforce your GIS skills by working through practical exercises and tutorials in this comprehensive workbook.

View Focus on Geodatabases in ArcGIS Pro on Amazon

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Complete the exercises related to data import, geoprocessing, and spatial analysis.
Practice creating maps and layouts to effectively communicate flood risk information.
Explore the different tools and functionalities available in ArcGIS software.

Four other activities

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Practice AHP Weighting Scenarios

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Refine your understanding of the Analytical Hierarchy Process (AHP) by working through various weighting scenarios for flood risk factors.

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Create a spreadsheet with the 10 flood risk layers from the course.
Experiment with different pairwise comparison matrices to assign weights to each layer.
Calculate the consistency ratio to ensure the weights are logically consistent.
Analyze how different weighting schemes affect the final flood risk map.

Read 'Remote Sensing and Image Interpretation'

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Deepen your understanding of remote sensing principles and image interpretation techniques to enhance your flood risk analysis skills.

View Remote Sensing and Image Interpretation,... on Amazon

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Read chapters related to image acquisition, processing, and interpretation.
Focus on sections covering spectral analysis, image classification, and change detection.
Relate the concepts learned to the specific remote sensing data used in the course.

Document a Flood Event with GIS

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Create a case study documenting a real-world flood event using GIS and remote sensing data, applying the techniques learned in the course.

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Select a past flood event and gather relevant data (e.g., satellite imagery, flood maps, news reports).
Use GIS software to map the extent of the flood and analyze its impact on the surrounding area.
Incorporate remote sensing data to assess land cover changes and damage caused by the flood.
Write a report summarizing your findings and highlighting the role of GIS and remote sensing in flood management.

Develop a Flood Risk Web App

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Build a web application that allows users to visualize and interact with flood risk data, further solidifying your understanding of GIS and web development.

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Choose a web mapping framework (e.g., Leaflet, OpenLayers, ArcGIS API for JavaScript).
Create a user interface to display flood risk maps and related data layers.
Implement interactive tools for users to query data, perform analysis, and generate reports.
Deploy the web app to a web server or cloud platform.

Career center

Learners who complete Flood Hazard Risk Analysis with Remote Sensing and GIS/AHP will develop knowledge and skills that may be useful to these careers:

GIS Technician

A GIS Technician is responsible for managing, maintaining, and analyzing spatial data using Geographic Information Systems. This course is an excellent starting point. It walks you through the use of ArcGIS Pro to conduct flood risk analysis, covering a range of essential GIS skills. The curriculum includes data downloading, preparation, projection conversion, raster and vector data processing. The course's hands on approach, providing data and step-by-step instructions for a real world flood risk analysis project, allows one to quickly develop practical skills. Skills in the course are what a future GIS Technician would benefit from.

See salaries and explore the career path for GIS Technician

Emergency Management Planner

An Emergency Management Planner develops and implements plans to respond to emergencies. This course assists in flood risk analysis which is central to emergency preparedness. The course goes over GIS and remote sensing techniques. By learning how to identify and map flood prone areas, assess risk factors, and create risk maps, you can take these abilities and use the GIS skills to prepare strategies for disaster response and mitigation. Furthermore, you can use ArcGIS Pro which is the industry standard software used in many organizations.

See salaries and explore the career path for Emergency Management Planner

Disaster Management Specialist

A Disaster Management Specialist prepares for and responds to natural disasters, such as floods, earthquakes, and hurricanes. This course provides a strong foundation, as it deals explicitly with flood risk analysis using GIS and remote sensing. By learning how to identify and map flood prone areas, assess the risk factors, and create risk maps, you gain practical skills that are directly applicable. Furthermore, the course's hands on approach and use of ArcGIS Pro are especially relevant. The techniques and knowledge gained will be of great benefit to perform your duties.

See salaries and explore the career path for Disaster Management Specialist

Environmental Risk Assessor

An Environmental Risk Assessor evaluates potential environmental hazards and their impact on ecosystems and human health. This course directly aligns with the responsibilities of an Environmental Risk Assessor due to its focus on flood risk analysis. Through the course, you gain hands on experience with GIS and remote sensing techniques to identify and analyze flood risk areas, using methods such as Weighted Overlay Analysis. The detailed exploration of factors like elevation, slope, precipitation, land use, and drainage density, gives a foundation for identifying and assessing environmental risks. This course equips one to conduct similar risk assessments in various environmental contexts.

See salaries and explore the career path for Environmental Risk Assessor

Remote Sensing Specialist

A Remote Sensing Specialist analyzes data acquired from satellite and aerial sensors to study the Earth's surface and atmosphere. This course would benefit those wishing to become a remote sensing specialist because of its focus on using remote sensing data for flood risk analysis. The course includes downloading and processing Landsat 8 imagery for Normalized Difference Vegetation Index analysis, a common task for remote sensing specialists. By learning how to integrate remote sensing data with GIS techniques to assess flood risk, you gain a valuable skillset. This course is especially helpful due to its practical focus and real world application.

See salaries and explore the career path for Remote Sensing Specialist

Environmental Planner

An Environmental Planner develops plans and programs related to the environment. This course can enhance your skills in flood risk analysis, which is an area that is relevant to making environmental plans. The course uses GIS and remote sensing techniques to assess risks. By understanding how to identify and assess flood risks, you can make informed decisions. Furthermore, the course’s hands on approach and use of industry standard software like ArcGIS Pro ensures that this training can be directly applied.

See salaries and explore the career path for Environmental Planner

Geospatial Analyst

A Geospatial Analyst interprets and analyzes geographic data to create maps, reports, and visualizations. This course may be useful as it delves into using Geographic Information Systems and Remote Sensing for risk analysis, specifically flood risk assessment. The course work with ArcGIS Pro, calculating weights and effects of different layers for flood risk analysis using the Analytical Hierarchy Process demonstrates key skills for a Geospatial Analyst. The preparation of raster and vector data, projection conversion, and understanding of spatial analysis techniques, are all directly applicable skills. This analyst can leverage skills learned in the course to perform similar studies in other geographic locations.

See salaries and explore the career path for Geospatial Analyst

Conservation Scientist

A Conservation Scientist manages and protects natural resources. This course teaches flood risk analysis which is an important aspect of conservation. The course teaches GIS and remote sensing techniques which allows you to assess the impact of floods on natural resources and develop conservation strategies. The course covers key factors such as elevation, land use, drainage density, and precipitation, and is directly applicable to conservation efforts. The course’s hands on approach makes it a valuable asset.

See salaries and explore the career path for Conservation Scientist

Hydrologist

A Hydrologist studies the distribution, circulation, and physical properties of the Earth's underground and surface waters. This course serves as a practical introduction to flood risk analysis, covering key hydrological factors. The course work encompasses precipitation analysis using the Schriber method, drainage density analysis, and topographic wetness index calculation. The process of integrating these hydrological datasets within a GIS environment to model flood risk areas is invaluable. The hands on approach, providing learners with data and step by step instructions, allows them to quickly build practical skills in hydrological analysis.

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Environmental Consultant

An Environmental Consultant advises organizations on how to minimize their environmental impact and comply with environmental regulations. This course would be helpful as it offers practical skills in flood risk assessment using GIS and remote sensing. The techniques for identifying at risk areas, assessing the impact of land use and other factors, and creating risk maps would allow the prospective consultant to help clients understand their flood risk exposure and develop mitigation strategies. Furthermore, the course's hands on approach and use of industry standard software like ArcGIS Pro will make it that much more helpful.

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Cartographer

A Cartographer designs and creates maps using digital mapping tools. This course can help you develop skills since it involves extensive use of GIS software to create maps for flood risk analysis. You will learn how to process spatial data, perform spatial analysis, and create map layouts. The course covers key cartographic principles, such as map projections, symbolization, and data visualization within the context of flood risk assessment. The focus on using ArcGIS Pro and the hands on approach will provide you with practical experience.

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Urban Planner

An Urban Planner develops plans and programs for the use of land, helping to create communities, accommodate population growth, and revitalize physical facilities in towns and cities. This course may be useful to an aspiring urban planner, as it focuses on flood risk analysis within a specific urban area. The course's use of GIS to model and map flood risk, considering factors like elevation, land use, and drainage density, provides valuable insight. By understanding how to assess and mitigate flood risks, the urban planner can make informed decisions about land use and development, ensuring the safety and resilience of communities. The focus on practical application and data preparation makes this course a valuable asset.

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Climate Change Analyst

A Climate Change Analyst studies the impacts of climate change and develops strategies to mitigate these effects. This course may be useful, as floods are a major consequence of climate change, and this course provides skills in assessing flood risk using GIS and remote sensing. The course covers the use of ArcGIS Pro to analyze various factors, such as precipitation, elevation, and land use. The course's focus on practical application and data preparation equips you with valuable tools for understanding and addressing the impacts of climate change on flood risk.

See salaries and explore the career path for Climate Change Analyst

Data Scientist

A Data Scientist analyzes large datasets to extract meaningful insights and inform decision making. This course may be useful, as it provides practical experience in working with spatial data and applying analytical techniques to a real world problem. The course covers data downloading, preparation, processing, and analysis using GIS software. You will learn how to integrate different datasets, perform spatial analysis, and create visualizations to communicate findings. The focus on flood risk makes this course useful.

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Surveyor

A Surveyor establishes official land, space, and water boundaries. This course may be helpful, as it provides a foundation in using GIS and remote sensing techniques to analyze spatial data. You will learn how to work with elevation data, create topographic maps, and analyze land use patterns, which are all relevant to surveying. The course's focus on accurate data collection and analysis, combined with its practical application to flood risk assessment, enhance the understanding of spatial data management.

See salaries and explore the career path for Surveyor

Flood Hazard Risk Analysis with Remote Sensing and GIS/AHP

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Practical flood risk analysis workflow

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