Questions tagged [land-use]
Land use is the human use of land including built environments such as fields, types of houses and settlements. It is different from [land-cover].
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questions
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27 views
Calculating the effect of sea level rise on land use in QGIS [closed]
In QGIS I need to calculate how many km of "Agriculture/buildings/bare soil" will be affected by "1m,2m,3m, & 3.5m" of sea level and I am using Landsat8 image and Landsat7 ...
0
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20 views
Learning variety and certain combinations of land use changes using ArcGIS Desktop [duplicate]
I have 3 Corine land cover rasters, which each contains types of land use, for simple example - 1 - arable land, 2 forest, 3 - urban areas etc.
How do I get not only the variety (which is easily ...
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0answers
21 views
How to obtain summary of overlapping vector layers by attribute (eg land use within properties) - QGIS
I am trying to determine a repeatable methodology for obtaining a land use change summary for a number of properties.
Inputs (both in same coordinate system):
Land Use Change shapefile with a number ...
0
votes
1answer
31 views
Doing spatial join in QGIS between land parcels and zoning map, how can land use with biggest overlap give its attribute to parcel?
The parcel might have some small overlaps (or intersections?) from other land uses if the alignment of vertices is not perfect, I want to make sure the land use covering the largest part of the parcel ...
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vote
1answer
111 views
Why using buffers in land use / land cover classification task?
I am following the tutorial How To: Land-Use-Land-Cover Prediction for Slovenia and I would like to understand why they used a positive buffer (expanding boundary limits) in the first part of the ...
3
votes
1answer
38 views
Sentinel-2 images
I am going to use Sentinel-2 images for crop type classification, and I am new to remote sensing. I want to know if there is an added value when using both L2A and L1C images. From what I understand, ...
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9 views
Sentinel-2-L2A band compositing
Is it possible to create features from composite bands for the task of crop type classification using machine learning and python? (just like using NDVI data).
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0answers
14 views
Identifying the position of a building footprint on a land parcel [closed]
I am looking to try classify where a building footprint falls on a land parcel.
I have identified the amount of free space that is available on a land parcel and am looking to try quantify this ...
1
vote
2answers
217 views
Calculate land cover for grid cells in QGIS
I have a raster containing information on the land cover type in a region.
I also have an ESRI shapefile consisting of a grid composed of 2500 cells. I would like to calculate the percentage cover of ...
1
vote
1answer
69 views
Slow processing in ArcMap
I am working with the vector files:
Landuse classification shapefile for a certain area with 4 landuse categories - builtup, vegetation, water and open spaces. (area bounds = 95sqkm). I classified a ...
2
votes
1answer
213 views
Getting Land Use data from National Land Cover dataset
I'm downloading data from the National Land Cover database using the get_nlcd tool from the FedData package. Here is an example for documentation for this package
library(FedData)
vepPolygon <- ...
0
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0answers
48 views
Convert output of Image Segmentation/Classification (From land-use classification) into different shapefiles
I am performing the Landuse Classification on satellite imagery. I have classified my image into different categories.
I have the shapefile of the original image, now I want to create the separate ...
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0answers
36 views
How to convert Google Earth KML to Raster with classes for Fragstats
I have digitized the Google Earth imagery for a 117 sq. km. area and have classified the land-use into forest and non-forest sites. I need to use this map for fragstats and calculation of landscape ...
2
votes
1answer
208 views
Working/Functioning of “sampleRegions” function in Google Earth Engine
I am doing land use classification in Google Earth Engine. I am using three different classes(forest, building, water) for classification. For each class, there is a shapefile containing polygon ...
2
votes
1answer
318 views
Summarize Land use changes over time with Google Earth Engine
I'm trying to detect how many times land type has changed between 2001 and 2018 (inclusively).
For example, suppose a pixel that was:
Forest from 2001 to 2003
Bare ground from 2003 to 2010
...
1
vote
1answer
42 views
2 raster files, find suitable area [closed]
I have done this with vector before, but now I have 2 raster layers:
1 raster layer that refers to land use: urban, forest, water, agriculture
1 raster layer that was classified in 3 classes for ...
3
votes
2answers
75 views
Replacing values of raster in R to produce landuse-like raster map?
I have a raster Z with elevation values (0, 0.12, 2.12), which I created myself in R. I want to produce a land-use raster from these elevation values, i.e. if Z<0.12, I assign land-use class 1 to ...
-1
votes
1answer
84 views
Seeking polygons that map out land zone type (ie Residential, Industrial, Commercial) in UK?
I'm looking at displaying the commercial and industrial areas of the UK on QGIS so that I can do some work on them. I'm not looking to add my own data to it, merely find a shapefile or geopackage or ...
0
votes
1answer
43 views
JS libraries that work with land use maps? [closed]
I'm incredibly new to GIS, but not to web development.
I have two land cover maps for two islands, which I'm spatializing data on top of for a web app. This data is agnostic of any real location data ...
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0answers
20 views
Landcover Legend
When I download landcover, the legend for pseudocolouring is always a number rather than the actual legend which was shown where I downloaded the data. How would I go about getting the actual land use ...
0
votes
1answer
36 views
How to mask an area in ArcMap and run supervised classification on unmasked area?
I would like to just run supervised classification on my area of interest (all along the coastlines) and would like to know how to do this in ArcMap. I have created a polygon to mask out the area out ...
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0answers
649 views
Maxent error: Error projecting, two layers have different geographic dimensions
When I run climate data (signed 16 bit) and land use data (unsigned 8 bit) on Maxent, I got an error message:
Error projecting: java.io.IOException: Files bio6 and alt in directory
D:\WorldClim\...
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0answers
32 views
Correct translation of Norwegian landcover classes derived from WMS?
I am making a map of the study site located in Norway. I have accessed the awesome and free WMS data regarding landcover (I guess: N250 Arealdekkeflate) https://openwms.statkart.no/skwms1/wms.topo4....
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1answer
138 views
Merging fields within attribute table ArcMap
I have an image file open in ArcMap of an area of land and its land use categories. I would like to combine some of these categories together in order to simplify the map. For example, there is 4 "...
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51 views
Determining amount of forest in overlapping buffers using ArcMap?
I'm using the multiple buffer tool around a series of points for buffer distances 250 m, 500 m and 1000 m around each point. I am then using the tabulate area tool to determine the amount of forest ...
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vote
2answers
42 views
Two different layers of the same area have to be united to form a single layer
I have two different layers containing different polygons and I need to combine them to see the differences over time.
So the output has to be a layer containing the attribute of interest of layer ...
1
vote
0answers
57 views
Comparing yearly changes in TaxLot land use in NYC (mapPLUTO) - tax lots change through time
I am trying to build a database for NYC in which, for specific boroughs of the city, I track changes per tax lot unit in terms of land use and other attributes, both qualitative and quantitative. For ...
0
votes
1answer
78 views
Analysing landuse data in a buffer layer
In my project I want to analyse the landuse around some points within a certain radius. So I created a buffer around my points but I have no idea how QGIS could probably tell me what different ...
2
votes
0answers
147 views
Orthophoto land use classification in QGIS
I am using a CIR orthophoto and tried to make a land use classification with the use of Semi-Automatic Classification Plugin in QGIS. I work in QGIS 3.2 but I get errors that my ROI are too small (...
7
votes
2answers
728 views
Calculating block statistics from land cover raster using R?
I have a raster (5 x 5 m resolution) representing land cover. Each cell contains a integer value (from 1 to 10) representing a total of ten land cover classes (e.g. 1-forest; 2-agricultural areas; 3-...
0
votes
1answer
183 views
Changing land use land cover classes in ArcGIS Desktop?
I have a tiff file containing raster data of land use land cover (LULC) classes.
Each pixel has a pixel value in the form of RGB values of the corresponding LULC class, need to change the pixel ...
0
votes
1answer
173 views
Computing area of different pixels classes in a multiple areas raster?
I work on forest data. My raster is a binary file : 0 is forest and 1 is non-deforest. I have multiple ROIs in which I would like to know the area of forest (so pixels of value 0 in the ROIs).
I ...
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vote
2answers
382 views
Sentinel 2 Bands + Deep Learning
I am trying to classify 9 different classes of Land use deploying Resnet Architecture. Sentinel images come with 13 bands and in RS we normally combine different bands for different classes for ...
0
votes
1answer
117 views
Merge adjacent polygons into a land use map
I illustrate my problem:
in practice I have a land use in vector format that is also made up of polygons irrelevant from a dimensional point of view but that I would like to delete for a question of ...
1
vote
2answers
2k views
How to get R to recognize a discrete raster layer
I am trying to work with discrete data on land use in Australia. I load up the file as follows:
library(raster)
dat<-raster("C:\\Users\\Douglas\\Desktop\\GIS Project\\LandUse\\Land use of ...
0
votes
0answers
91 views
How to assess significant land cover changes using Chi-square test?
I have a series of land use maps at different times as a result of a classification process on Landsat images. I am mapping 3 different thematic classes : bare soils, vegetation and croplands.
I ...
0
votes
1answer
919 views
Extract one class from global LULC in google earth engine
I am trying to extract one LULC class (e.g. cropland) for the entire globe from the MODIS global lulc. How it can be done?
Code I am using to display global lulc is:
var cover = ee.Image('MODIS/...
0
votes
2answers
2k views
Seeking land use map in London and UK?
I am looking for the land use data of London in vector format, preferably in polygons. I am interested in whether a building / an area is residential, office or retail use, like this one (https://www....
0
votes
1answer
510 views
QGIS saga supervised classification [closed]
I'm using QGIS 3.0 with the expanded SAGA options. I created a training file in SAGA standalone that I am using, but would prefer the GRASS kappa comparasion options. I have already performed the ...
2
votes
1answer
332 views
Is Landsat 30m resolution satellite images accurate enough to map land cover on a 40 km² watershed? [closed]
I am trying to remote sensing land cover features (bare soil, water, vegetation, cultivated areas) on a 40 km² watershed, located in the Sahel (semi-arid west africa). I am heavily interested in their ...
0
votes
1answer
204 views
interpreting Normalized Differentiated Bareness Index and Normalized Differentiated Impervious Surfaces Index? [closed]
I've tried looking for various sources to help me interpret NDBaI and NDISI indices but I've not found anything particularly helpful.
Does anyone know how to do it or have any literature that might ...
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vote
0answers
474 views
Percentage of area within a buffer in QGIS [closed]
I have a layer containing the land use of a specific area,and a buffer. I would like to calculate the percentage of each category contained in the buffer. For example in the picture i want to know the ...
0
votes
1answer
99 views
Avoiding overestimation in impervious mapping using raster/shapefile training data?
I have tried several methods including unsupervised classification, supervised classification, random-forest classification, and spectral indices methods to estimate the amount of impervious surface ...
1
vote
1answer
318 views
QGIS, Buffer, and Land Use around coordinate points
I have a large data set with many columns of data where each row has data from a different lat/lon coordinate.
I would like to add land use at each site to this data set. I was thinking of using ...
0
votes
1answer
4k views
Calculate land use percentage within an area?
I'm interested in calculating land use percentage for three layers (forest, agriculture and urban) within the context of a water basin area.
I've managed to merge the land use layers with Union tool ...
0
votes
1answer
327 views
Random Forest Classification of Landsat8 Image gives invalid/noise output
In my previous question (memoryerror in Supervised Random Forest Classification in Python sklearn) encounter further issue on random forest classification output. The python code runs fine, but the ...
0
votes
1answer
83 views
Telling Tabulate Area to use custom textual labels for column names?
I have a land use raster with unique values of 1-8 and the appropriate label names for the land use are defined under the symbology tab.
When I process that raster with the Tabulate Area tool in ...
0
votes
1answer
169 views
Where on-line can I find a GIS land use .lyr that shows standard colors for each land use code?
I have been looking on-line for a GIS land use layer file that shows all the standard colors that represents each land use code. I have not been successful in finding that. Would you please direct ...
0
votes
0answers
95 views
Reclass a landuse shapefile based on another shapefile using R
I have a landuse shapefile that I want to modify based on another shapefile.
In this example I have three classes in landuse shapefile A.
Say I'd know that everything within one of the small ...
1
vote
1answer
394 views
Molusce crashes QGIS when starting the changes raster calculation
I am doing a simulation of land cover changes with Molusce 3.0.13 in QGIS 2.18.9.
I am using 2 Corine landmap uses (2006 and 2012, with minor changes on the area, 12 same categories in both), road ...
