Muhammad Firdaus

11 Questions 8 Answers 0 Followers

Questions related from Muhammad Firdaus

Which LS factor calculation method should I use?

I found out that there are various ways to calculate LS factor (Topographic factor) when using QGIS such as Moore & Nieber (1989), Desmet & Gobers (1996) and Wischmeier & Smith (1978)....

16 March 2023 4,213 3 View

What does it mean when ArcGIS computes the histogram during classification of raster (Symbology)?

I want to classify my raster file into several classes in ArcGIS . When I click "Classified" in Symbology, ArcGIS stated that "the Classified renderer requires the data to have a histogram. Do you...

07 April 2022 404 4 View

How to actually do single-parameter sensitivity analysis and map removal sensitivity analysis?

I read that single-parameter sensitivity analysis and map removal sensitivity analysis are commonly used to assess the influence of parameters in DRASTIC and other index-based model. However, how...

07 April 2022 1,233 3 View

How to do map removal sensitivity analysis for DRASTIC index or any map that uses weighted linear combination?

Is there a software that can do this or do I have to calculate it manually?

03 March 2022 7,294 0 View

Can I predict land use change using an existing land use map instead of satellite image?

Instead of doing supervised classification to produce a land use map from satellite images, can I just use an existing land use map (in shapefile format) to predict land use change(Just convert...

11 January 2022 5,763 8 View

Any resources or online courses on how to use Bayesian Network?

I'm currently doing a research on risk assessment of water pollution at watershed scale. Here's an article that applies Bayesian Network in risk assessment of water pollution. A Bayesian...

17 May 2021 5,829 1 View

What are the differences between 1D, 2D and 3D hydrological model?

What are the differences between 1D, 2D and 3D hydrological model in terms of advantage, disadvantage, function, compatibility and hardware requirement?

03 March 2021 6,267 4 View

Where can I learn how to use Artificial Neural Network (ANN)?

I'm conducting a research on risk assessment on river basin pollution using GIS. I want to know where can I learn how to use ANN to create a risk map. I've been searching for online courses such...

14 September 2020 1,697 11 View

How to incorporate socioeconomic variables in risk assessment of watershed?

I'm conducting a research on risk assessment of river basin pollution using GIS. I'm trying to find ways to incorporate socioeconomic variables in the risk assessment. Are there any socioeconomic...

19 August 2020 5,910 6 View

Method for surface water/river basin risk assessment of pollution using GIS?

I'm currently working on risk assessment of river basin to water pollution using GIS. However, I only find few previous studies(less than 10) that conducted surface water risk assessment via GIS....

28 June 2020 4,284 7 View

What are the potential parameters for adaptive capacity when conducting socioeconomic vulnerability assessment of water pollution?

I've read numerous papers about socioeconomic vulnerability assessment and I found out that most of the papers focused on natural hazards and disease(such as COVID-19 pandemic). I can't find...

01 January 1970 4,173 8 View