Questions tagged [land-cover]

The observed biophysical cover of the earth's surface. Data are essential elements in a wide array of government and private sector activities, including inventory, management, monitoring, and modeling.

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16 views

Land cover and population maps in Poland [closed]

Where can I find land cover maps of Poland for the years 2000, 2010 and 2020 and population maps for the same years as a vector file?
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QGIS: Landover Analysis Dialog Box Too Small

When I open the Landcover Analysis plugin within QGIS, the information in the dialog box is overlapping and doesn't fit the window. Even if I increase the size of the dialog box. It makes it pretty ...
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31 views

Models for supervised land cover classification using the RStoolbox package in R [closed]

Which models can be used for land cover classification model via the RStoolbox package in R?
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13 views

Advanced Sentinel 2 Image Classification (6 Vegetation Classes) [closed]

I have this project of creating LULC from a Sentinel 2 image, I'm very familiar with level 1 basic image classifications with 4 to 5 classes but this time my project requires about 10 classes which 6 ...
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14 views

How to identify tall buildings? [closed]

I am working with a large dataset of land cover data provided in GeoTIFF files at 10m resolution from this source: http://data.ess.tsinghua.edu.cn/fromglc10_2017v01.html While the data is mostly ...
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15 views

Using training polygons to classify past imagery based on spectral reflectance in ArcMap

I am currently creating training polygons on ArcMap on 2020 imagery and classifying that imagery. I want ultimately to compare it to historic imagery (I'll first do 2013 for example). However, I ...
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27 views

How to fix incorrect land cover pixel data in GeoTIFF

I have downloaded a large dataset of 7,046 global land cover TIFF files from here: http://data.ess.tsinghua.edu.cn/fromglc10_2017v01.html The dataset is 10m per pixel so is very high resolution, but ...
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1answer
28 views

Understanding land cover RGB values in greyscale GeoTIFF

I apologise if I'm not using the right terms but I'm not a GIS expert. This page has some GeoTIFFs (at least, I'm pretty sure they're GeoTIFFs) which I'd like to analyse and I have downloaded the ...
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1answer
59 views

Validate a supervised classification in Google Earth Engine using ground truth data

I ran a supervised classification in Google Earth Engine (GEE) using the following script. // add an image, bounds, filter data and sort by cloud cover var limitiNapoli = 'PathToMyasset' var image =...
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Adding values to landuse class raster using ArcMap

I am currently working on a map that holds my animals' projected radio-locations from my work this summer. I have a current land class map downloaded from the USGS of the site; however, some of the ...
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1answer
29 views

How can I automatically deselect a mapped layer in Google Earth Engine?

I am currently mapping land cover changes between two years, e.g. 2001 and 2010. The code I am writing adds the Land Cover layers to the map for both years, so a map of 2001 and one of 2010. Then, I ...
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1answer
57 views

What has happened to my landcover data?

I have downloaded Great Britain vector landcover data from Digimap. I was expecting it to look like the image on the left, however, when I downloaded it to ArcGIS Desktop it only displayed 1 colour (...
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1answer
39 views

How to sample points on specific landcover class using Image.stratifiedSample in Google Earth Engine?

I need to sample NDVI time series on the crop classe defined in the Copernicus GLDAS Landover dataset (value: 40). The logical approach seems to be using Image.stratifiedSample on the landcover, ...
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Spectral signatures difference between a raw image and an atmospherically corrected image

I did atmospheric correction of Landsat 5 image by Quick atmospheric correction method(QUAC), now I want to compare atmospheric corrected spectral signatures from ENVI QUAC with the input spectral ...
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65 views

Difference between two atmospherically corrected Images

I corrected Landsat 5 image with two different methods, first atmospheric correction through calibration (means converting raw image into radiance), second atmospheric correction through QUAC ...
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1answer
72 views

Landsat footprint artifacts in statewide CCDC map

I have produced a map for New York State using CCDC as implemented in google earth engine. The map counts the number of disturbances for each pixel occurring between 1990 and 2019 (black = 0 ...
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1answer
77 views

How maxent's algorithm uses data to predicte distribution of species

Using the same list of occurrences with present and future bioclimatic variables (worldclim) I get two obviously different distributions. In the case of the future projection, I assume that the ...
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1answer
26 views

Creating radii around points, analyzing raster & vector data within those radii, QGIS 3.10

I have a handful (literally, like 20) points that I need to create three radii around— 200m, 1000m, 2000m— so that I can extract raster (land cover within the radii) and vector (road length within the ...
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1answer
32 views

Finding the percentage of change of 30 meter resolution raster within buffer area

How could I find the percentage of change for each buffer area in the image below using ArcGIS Pro 2.5.0? I want to be able to show the percentage of change for each INDIVIDUAL and "unique" ...
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1answer
73 views

Reducing raster legend classes to the ones shown in my map in QGIS

I have a landcover raster layer. I use the styles of a QML-file. Is there an option to reduce my style classes shown in the legend to only the relevant classes shown in the map? The QML has 44 classes,...
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1answer
39 views

Effiently incorporatinig metadata (.xml) into rastered landcover data (.tiff/.toff.ovr/.tiff.vat.dbf)

So I'm using this VGIN data to understand land cover surrounding points in Virginia in QGIS. The VGIN data came with ~100 tiles (and for each there is a .tif, .tif.ovr, and .tif.vat.dbf file) and two ....
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1answer
64 views

Is Corine Land Cover 2018 available from WFS server?

I need to work with CLC 2018 across Europe from mobile devices with little storage capacity. It would be ideal if I could access it through a WFS server and extract just the areas and/or classes I ...
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1answer
45 views

Displaying forest landcover using Google Earth Engine

My question concerns code from Displaying landcover classes using Google Earth Engine. I tried to apply the code in the answer to the new V20 data set, but I doesn't seem to work the same way. If I ...
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1answer
36 views

Land cover data to create single colour polygons

I am trying to replicate the map here https://www.cdc.gov/yellowfever/maps/africa.html I have downloaded land cover data, which is what the Northern countries are based on, from https://www.diva-gis....
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Error in Built Up area Classification using Landsat 8 in google earth engine ( SVM, RF and Cart)

I am using Earth Engine to Classify an area using supervised classification with a combination of reflectance bands and indices. The built-up area gets mixed with fallow land (bare soil) and I have ...
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1answer
84 views

Extracting NDVI for Landcover Classes in Google Earth Engine

I am working on a project where I have created a supervised classification of an image which contains four land cover classes. I have reduced the classification to a frequency histogram that displays ...
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1answer
112 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 ...
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34 views

Landcover area for each class in multiple regions (GEE)

I was trying to use the ReduceRegions and grouped reducer functions to calculate landcover area for each class in a feature collection, and I end up getting output in forms of lists of objects that I'...
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1answer
42 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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10 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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1answer
255 views

Dealing with NAN values in my training dataset

I am new to remote sensing. I am working on a project where I need to perform land use land cover classification. For such a task I want to use machine learning (python). My features contain 'BANDS' (...
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Efficient method for determining directional change in landcover polygons between two time points?

I have polygons of landcover classes in ArcMap (dense forest, sparse forest, wetland, water, rock) for a landscape from two different time points. I want to determine the % or total area that changes ...
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Distance from one cell in a land use raster to nearest cells of other land use types

Basically, I am trying to find the distance from one cover type to the nearest of the others for each cell. For example, if I had 5 cover types, urban, shrub, forest, water and grass. The end goal is ...
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1answer
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What exactly does the MODIS Land Cover QA-Class “Backfilled label” mean?

This is about the MCD12Q1.006 product and more specifically code 8 of the QA band. The description for it is: Backfilled label: Missing label from stabilization, filled with the pre-stabilized ...
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2answers
268 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 ...
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2answers
32 views

Looking for land value data for anywhere in North America especially for Florida [closed]

I am researching on road alignment optimization. The research goal is to find least cost road alignment between two given points, considering highway codes. One of major costs which I need to consider,...
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1answer
30 views

Calculating LULC change 1973-2014 of a classified map (raster converted to shapefile) in ArcGIS 10.6

I am attempting to workout landcover change between two classified landcover maps. Ideally I want to show percentage change between the years per landcover type. I think I have done this but I am ...
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1answer
104 views

Landsat-8 level 2 DN to reflectance

I have downloaded a series of Landsat-8 level 2 images. My main purpose is to obtain reflectance out of them; however, the scale of the different bands does not look like reflectance (e.g. Blue Band ...
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1answer
67 views

Google Earth Engine “Land Cover Dynamics Yearly Global” (MCD12Q2.005) visualization problem?

I am currently trying to explore the MODIS Land Cover Dynamics dataset using Google Earth Engine. However, when I runned the snippet proposed on the GEE page, i.e.: var dataset = ee.ImageCollection('...
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35 views

Topology Checker for QGIS 3.x creating errors during validation process

I am looking to check for errors on my landcover layer in QGIS 3.x. I have used this same plugin for other projects, but for some reason am having issues running in on this specific layer. The issue ...
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1answer
58 views

How do I combine multiple raster layers to make a landcover map for Borneo?

I am currently making a landcover change map for a Kinabatangan, Sabah, Borneo for my undergrad dissertation. I downloaded landsat MSS and 8 images. These were pre-processed and both classified using ...
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1answer
183 views

Converting (Corine) land cover palette to RGB within Google Earth Engine

I'd like to export a Corine Land Cover (CLC) Map (i.e. an image from ee.ImageCollection("COPERNICUS/CORINE/V20/100m")) from Google Earth Engine go my Google Drive, forgoing the need to any external ...
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1answer
100 views

Masking out pixels from the Sentinel 1 image in Google Earth Engine

I am trying to classify paddy areas from time-series(in this case, four-date) Sentinel 1 image in both VH and VV polarization. Hence prior to classification, I need to mask out land covers such as ...
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0answers
1k views

AttributeError: 'NoneType' object has no attribute 'GetFeatureCount' [closed]

I am trying to use the Landscape Vector Overlay function in the LecoS plugin to calculate the amount of various proportions of land cover types (using an ordinary landscape raster) within buffer ...
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1answer
56 views

Which year change does NLCD Land Cover Change Index show?

After downloading the National Land Cover Dataset (NLCD) Land Cover Change Index from the Multi-Resolution Land Characteristics Consortium (MRLCC) website, it only contains one raster file. However, ...
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1answer
90 views

How to compute only urban area from the give code

'land_and_cover_type_1" class has 1-16 whare "Urban and built-up" has the valus 13 with color code a5a5a5 i only want to compute the urban part of land insted of whole 1-16 value how to do that var ...
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2answers
269 views

How to apply trained classifier to entire Landsat collection in Google Earth Engine

I have classified the 2019 image using Google Earth Engine. How can I use the training data and code I have for 2019 and apply it from 1984 to 2018 instead of training/running a code for each image ...
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0answers
236 views

Export classified land cover types as table - Google Earth Engine

My question relates to extracting the area of different land cover types in a region. So far, I classified a Landsat7 image using MODIS data as classifier. When I choose a point on the Map, the ...
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0answers
45 views

Calculating area of land cover within 30m of streams for whole U.S.?

I'm trying to do a very simple analysis where I need to find all land cover of a certain type within 30 meters of a stream. I have a raster from the National Land Cover Database (NLCD) from which I've ...
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0answers
24 views

Vector to Raster

I traced land use as forest (purple) and non-forest (Teal) in my study area of 117sq.km. from google earth. I have attached a copy of the landcover file which I have created. I need to convert this ...

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