Mirko Barada

7 Questions 9 Answers 0 Followers

Questions related from Mirko Barada

Is there a universal standard in manning friction values for land cover or the values need to be adjusted to the study area over again ?

I see huge discrepancy between researchers (difference for the same class is somewhere up to 0.2). What determines the choice of the appropriate value ? What is the role of spatial resolution of...

12 January 2021 4,045 2 View

Is it always better to use friction values in inundation modeling, even when we have high-resolution DEM, where rough surface changes are detailed?

I am aware of computational costs while working with high resolution data, so this question is more of hypotetical nature and is related to the relevance of friction parameter in inundation...

24 June 2020 2,403 2 View

How to produce and use multi-resolution grid (a mixture of high and coarse resolution on the same raster image) in ArcGIS or any GIS software ?

It seems impossible since most of analyses are based on 3x3 cell neighborhood but I would like to hear your experiences. I know that some hydrodinamical models like TELEMAC are able to perform...

19 May 2020 6,424 7 View

What is a difference between Add surface information tool and Extract values to point ? I

This is related to ArcGIS. If I want to calculate RMSE for vertical accuracy of some DEM, which tool is more representative? This question is also related to difference between wireframe based...

17 May 2017 5,902 4 View

A questionarre for all DEM users. What are your practices in digital terrain modelling ?

Questionnaire is carried out in order to develop my master thesis: The impact of user-defined parameters on DEM accuracy. By using feedbacks from the users who works with DEMs the conclusion about...

14 October 2016 3,839 3 View

I kindly ask all DEM USERS to complete this form, as a part of my master thesis (Just click on question, and the LINK will appear) ?

Questionnaire is carried out in order to develop my master thesis: The impact of user-defined parameters on DEM accuracy. By using feedbacks from the users who works with DEMs the conclusion about...

29 September 2016 6,246 10 View

How to evaluate DEM accuracy by analysing cell size suitability ?

I am introduced with methods for determining the right cell size according to sample characteristics and with visual validation of DEM resolution suitability, but is there any statistical...

07 June 2016 1,587 7 View