Questions tagged [landscape]
landscape in this context refers to the visible features of an area of land or environment. Do not use for questions related to orientation of paper or screens.
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FragStat metrics analysis of urban land uses
I am trying to do a land use analysis in FRAGSTAT VERSION 4.2 for, 1995, 2005 and 2013. My land uses of interest are low density, medium density, high density residential areas, commercial, ...
CommunityBot
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256
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Problems with no valid "nodata" value
I'm trying to use the "lecos" extension and I took an already classified image from the mapbiomas website, cut it out to my area of interest, then reclassified to have in a .tif file only ...
CommunityBot
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Classifying spatial metrics value
I am currently working on my task of analyzing spatial metrics (landscape metrics). I used Fragstats for the analysis. I use class-level analysis for several indexes and need to classify the values ...
- 65.1k
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R equivalent to the ArcGIS's Shape Metrics Tool
I am trying to calculate the compactness of (vector) polygons in using R.
My main reference to do so is this paper. There used to be an ArcGIS toolbox (Shape Metrics) to calculate these metrics. ...
- 31.8k
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Forest patch centroids are not located in patches using landscapemetrics in R
I am using the R package landscapemetrics to find forest patch centroids in a landscape. The given function to find patch centroids is get_centroids(). The centroids returned from get_centroids() are ...
- 31.8k
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Recreating past landscapes on ArcMap [closed]
I am using ArcMap 10.1.
I am trying to recreate the landscape as it may have been around 4000 BC. I have an idea about what tree species existed in particular regions of Scotland (by reading pollen ...
- 65.1k
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Creating theoretical landscape using QGIS
I would like to create a series of random theoretical landscapes (DEM) of the same size with certain parameters ranges (e.g. slope range, elevation range) and ideally with the option of defining the ...
- 65.1k
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Calculate percentage of a class in a raster within a buffer in moving windows in R
I would like to calculate the percentage of a class (for example forest) in a classified raster image inside a buffer (for example 1000m).
Speciffically, I have a 30x30m classified raster and for each ...
- 31.8k
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QGIS LecoS edge length
I am using the LecoS plugin to analyze areas I have previously mapped. The problem is, that these maps are square, which means, that the areas inside are cut. e.g. the forest continues but I have only ...
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Landscape change metrics for vector data
I am new to GIS.
I am currently working on a problem which involves two vector datasets about habitat and land use ("now" and "future"). I need to generate metrics like "...
- 65.1k
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Fail to conduct resistanceGA with run_gdistance
I am using a landscape surface resistance distance counting R packages called resistanceGA
It can count commuteDistance with the assistance of another package gdistance
It uses the following code to ...
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Using LeCos- QGIS crashing
I have a raster of forest and non-forest data. I am trying to analyse it using LeCos on QGIS. The pixel size is equivalent to 1sq.m and there class information ranges from 1-503. When I load it into ...
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Example of QGIS for landscape management and maintenance plans?
I'm writing about landscape management and maintenance plans, and that most of them are in a Word file with perhaps a table of tasks, as opposed to a smart document such as a QGIS file with a linked ...
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Calculating range of values for a class for landscape analysis
I am working on a large scale landscape analysis in Qgis: on several raster layers i made (using SRTM dem as source data) i am doing a reclassification procedure. Reclassification is based on a set of ...
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Estimate spatial kernel density from raster and output kernel values in a grid
I would like to use a raster map (find below) to estimate or create a kernel density distribution. The objective is to extrapolate the kernel density function and re-use it in order to distribute a ...
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Interpreting results in legend, SAGA GIS or QGIS? [closed]
Can somebody explain to me what units of measurement do I get in the results of analysis, ground morphometry in SAGA GIS software or through a plugin in QGIS?
for example:
Terrain ruggedness index (...
- 65.1k
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Seeking GIS tools for simulating landscape fragmentation?
I am currently looking for any GIS packages (or add-ons) that allow the simulation of landscape fragmentation on raster data.
Maybe also other software than GIS tools?
Does anyone of you have had ...
- 65.1k
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How is GIS used in landscape architecture?
I was wandering, if out there somewhere are people that use GIS extensively in the field of landscape architecture (or closely related) and how do they use it?
May be some examples of work, maps, ...
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Calculating landscape metrics using R?
I would like to calculate area-weighted mean shape index (AWMSI) and mean nearest neighbor distance (MMN) and other landscape metrics for a classified map (tif) using R.
I've found a github package ...
- 31.8k
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How to create landscape resistance map using path level spatial randomisation in QGIS?
I need to create a landscape resistance map based on path level spatial randomisation, as I have read in some research papers. Are there tools for this? I need to randomly shift and rotate the the ...
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Rasterizing vector data for landscape permeability analysis
So I vectorized an area with 12 different categories/features. My intention is to use this in the future for calculating landscape permeability.
I would like to know which steps I need to take right ...
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How to show slope directon and angle [duplicate]
I need to create a map showing slope direction and dip angles in QGIS.
How do I get either:
the dip angle to show up next to the direction arrow
or
the dip arrow symbol to change depending on the ...
- 29.7k
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Making land-use raster reclassification in QGIS? [duplicate]
I have been struggling with the task of creating a least-cost path between two points on a land-use map.
So far I have got the raster as follows (category names don't matter right now)
So these 7 ...
- 65.1k
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Get all locations of Panoramio photos in a given extent
To create a visual quality heat map I'm trying to get a list of all Panoramio photos in an about 2000 Km2 wide study area. My idea is to perform a density analysis in GIS on a point shapefile ...
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Extract boundary cells between classes from raster
I want to extract from a RasterLayer all boundary cells between classes (possibly according to the 4-cell rule), excluding from this operation cells that neighbour NA cells
The raster::boundaries ...
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What could replace the Traversability Index (TRAVERSE) from previous Fragstats versions?
I need to analyse the connectivity of wetlands, I believe that the Traversability Index from Fragstats is the one that best describes my intentions because it considers not only the ecological cost of ...
- 11.1k
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Which cell size should I use in the LecoS plugin?
LecoS asks for the cellsize when calculating landscape statistics. However, there is no such information in the metadata of my input raster layer. Pixel size is 0.00126545,-0.00126497, but that can't ...
- 84.1k
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3
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create diversity map of qualitative features, ArcMap
I am trying to create a map of forest type diversity with ArcMap. I have a polygon forest layer with the different forest types as attributes (e.g. 0815, 0862, 0813, ..., which stands for 'mixed ...
- 65.1k
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DEM local adjustments - terraforming
I'm looking for software that can perform local adjustments in DEMs with tools similar to paintbrushes used in graphics editing programs but streamlined to respect geomorphology.
To give you an idea ...
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How to Compress/Stack Landscape features to examine spatial distribution and fragmentation?
I was wondering if anyone could help me figure out how to compress landscape information from multiple rasters (or polygons) into a single output. Basically, I want to explore how landscape ...
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(How) do the modifiable areal unit problem and modifiable temporal unit problem interact?
I am reconstructing historical time series of land use and other related data from a variety of sources with different spatial and temporal resolutions and would be interested in what possible (hidden)...
- 31.8k