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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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17 views

Extracting certain landcover type in CONUS with Google Earth Engine?

I am new to Google Earth Engine and I would like to export the pixels with landcover type of deciduous broadleaf forest (MCD12Q1 with LC_Type1 equals to 4) in google earth engine. And the following is ...
2
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1answer
74 views

Extract areas with certain pixel values from raster

I have land cover data from GEE (https://developers.google.com/earth-engine/datasets/catalog/ESA_GLOBCOVER_L4_200901_200912_V2_3) for specific countries. I would like to extract the values from the ...
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25 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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46 views

Growing Season Length in Google Earth Engine?

I am trying to estimate growing season length with the MCD12Q2 dataset (Land Cover Dynamics Yearly L3 Global 500 m), which includes dates for the start and end of the growing season (...
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3answers
76 views

Bare Soil Detection

I try to find bare soil areas. Those which are bare over the whole year and those which are fresh harvest and remain bare over a certain time. I try to do this with sentinel-2 data. But the Problem is ...
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1answer
114 views

Land Cover Change Classification in R

I have two Land Cover (LC) classification raster over the same area and the same cell size. One from the year 2018 and the other from the year 2014. Both raster are classified with the values 1 - 6, ...
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1answer
111 views

How to properly import corine landcover 2012 (vector file) in QGIS?

I'm fairly new to QGIS (using version 2.18.25), so I may be missing something quite basic. I'm using the Corine landcover (clc12_Version_18_5.gdb) in my project. It's a very large dataset (3GB) so it ...
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0answers
46 views

How to extract land cover type data (%) from raster file using Zonal Stats from overlaid polygon grid, QGIS

I have a very large raster file of land use types for a landscape. I am trying to run an occupancy model of large carnivores and need to test the weight as a covariate, of human settlements. Human ...
3
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2answers
110 views

Google Earth Engine: how to select NDVI for some land cover type

I am quite new to both Google Earth Engine and JavaScript. My goal is to obtain the NDVI just for some region (some polygon) only in the selected cover type. I managed to compute areas and number of ...
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0answers
39 views

Apparent disappearance of NLCD 1992/2001 retrofit land cover change product

I am attempting to download the national land cover datasets 1992-2001 retrofit land cover change product from the mrlc site. The product exists throughout documentation and I have not found any thing ...
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1answer
56 views

Finding difference between two rasters using ArcGIS Spatial Analyst?

I know how to find difference between two rasters with Spatial Analyst tools, but how to display attributes, for example differences between two Corine Land (2006 - 2012) rasters, how to see codes of ...
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1answer
102 views

Google Earth Engine - Displaying landcover classes

I was wondering if theres a way to display single Landcover classes from the Corine Land Cover-Dataset in GEE. I know i somehow have to select the landcover_class_names or values in the property ...
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1answer
102 views

How do I compute the forest area for different regions?

I am currently struggling to compute the forest area of some regions. I am an absolute beginner with Google Earth Engine. I tried it 2 different ways, mostly by copying and editing code I found. ...
0
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1answer
192 views

How to crop TIFF image without losing classes in QGIS 3.2?

I am trying to crop a TIFF file in QGIS 3.2. What I am currently doing is going to Raster -> Extraction -> Clip Raster by Extent... . Then I type in my min and max x,y values. The new raster layer is ...
7
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2answers
160 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-...
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2answers
129 views

Calculating continuous raster representing land cover proportion from categorical raster using QGIS?

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-...
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0answers
107 views

Getting fractional count of pixels in raster map using QGIS?

I have a raster map consisting of 22 land cover classes (LCC). Each pixel is 300 x 300 meters in dimension and contain one of the 22 LCC. I need to make 1 km x 1 km cells in the parent grid and count ...
2
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1answer
153 views

How to obtain TIFF file using data from CSV files

I have a set of CSV files containing lat-long values for certain land cover classes. Long Lat 80.1 23.0 80.2 23.1 80.3 23.2 80.4 23.3 ... From this point on, I need to generate a TIFF file ...
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1answer
74 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 ...
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0answers
34 views

Seeking National Land Cover Vector Dataset? [closed]

I am looking for a National land cover vector dataset. I tried to work with the National Land Cover Database 2011, downloaded the dataset but it was a picture file.
0
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1answer
44 views

Know of any existing quality training/validation datasets for land cover?

Looking to do some moderate res. global land cover mapping and need as much training and validation data as possible--does anyone know of any good/quality land cover/land use data that are freely ...
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1answer
43 views

Seeking remotely sensed data for measuring urban gardens?

One of the students in my lab is currently seeking methods for measuring the very small size of urban green spaces in people's gardens. Is there a data set out there that may be appropriate for this?...
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1answer
215 views

Reducing Land Cover Data Sets in Earth Engine

I am trying to use earth engine to reduce the USGS land cover dataset and calculate the frequency of specific land cover types in several regions. The output that I am getting creates a single ...
2
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2answers
127 views

Polygonize a multi-band raster

I have a polygon and I want to estimate areas of different types of land cover tha falls within the polygon. The problem is that the only freely available land cover data I found is https://catalogue....
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0answers
45 views

What indices work best for entropy computation for classifying lone standing trees?

Question: What bands or indices work best for entropy analysis of lone standing trees? Problem: In Google Earth Engine, I created a landcover classification for semi-arid africa with good accuracy....
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1answer
95 views

Getting WMS server from GLOBELAND30 Landcover interactive map?

I am very interested to get GLOBELAND30 WMS server. To get it I've used some hacking: 1) I've inspected it with Chrome Inspector and did some actions (see below): 2) Got WMS server (see below) 3) ...
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1answer
20 views

Land cover change maps - Different extent when adding a New data frame in layout view

I would like to create a map where I show land cover change between year 1996 and 2002 in Indonesia. In the layout view, I added a new data frame to add the other year, but it seems that the extent is ...
0
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1answer
76 views

Land cover change - need help with land cover classes

I'm very much new to using ArcGIS and to this forum. For my thesis, I have a raster map of Indonesia where I only look at three types of land cover retrieved from the ESA-CCI dataset. These involve: ...
1
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1answer
105 views

Tree Cover Change analysis on QGIS, “Stripes” or “Banding” on the image

I am currently looking at Tree Cover Change around a set of 288 villages in the Equatorial Forest of Africa using QGIS. In order to do so I am using the GFCC30TC: Global Forest Cover Change (GFCC) ...
0
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0answers
49 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 ...
3
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1answer
252 views

Extracting exact land coverage raster from TIFF format raster using R? [closed]

I have land coverage raster data that downloaded from JRC data catalogue (JRC website and JRC land coverage data download link), where data file like shapefiles at a very high degree of resolution, ...
0
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1answer
399 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/...
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0answers
62 views

Reclassify land use map based on agricultural statistics [closed]

I'd like to create a land cover map of Greece with enhanced information on the spatial distribution of agricultural crops. As you know, common land cover products (such as ESA CCI LandCover or CORINE)...
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1answer
211 views

Can anybody help me to know the type of land covers in DIVA GIS data?

I have dowloaded the country mask land cover data from DIVA GIS website. I don't see the name of different types of land covers.
2
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1answer
319 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 ...
3
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0answers
161 views

Land Prediction Logistic Regression

I use terrset idrisi software to create land cover prediction map for the year 2023 in land change modeler. I am trying to do this by implementing logistic regression which is in transition-sub model ...
2
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0answers
268 views

Estimating biomass in mangroves in google earth engine [closed]

I am working on a project estimating biomass production and carbon storage in mangrove forests. I looked upon examples estimating biomass production using NPP and GPP such as https://mygeoblog.com/...
2
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0answers
117 views

Supervised classification using endmember spectra (using ENVI 5.1)

We are trying to map land cover classes over a small watershed. We have selected training sites (during a field campaign in early 2017) and determined their spectral profiles on a Landsat 8 image ...
2
votes
1answer
310 views

Calculation of fractional cover for each vegetation class at 30-m resolution matching MODIS swath in R

Currently I have a Landsat land cover map with 30-m resolution and I want to calculate the fractional cover for each vegetation class (forests, grasslands and croplands etc.) matching MODIS swath and ...
0
votes
1answer
391 views

how to create C factor (RUSLE) map by using NDVI values?

I have a basic knowledge of GIS and arcgis sofware and I need to generate C factor (cover management factor of RUSLE) by using NDVI values. I know there is an exp formula but I dont know the steps to ...
0
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1answer
155 views

National Land Cover Dataset (USA) Data Extraction

I have downloaded the NLCD 2011. It has different formats of files (i.e. .rrd, .ige). I tried to open the (.rrd) file using ArcGIS 10.5.1 but it couldn't open it. Can you suggest me how can I view ...
0
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2answers
615 views

Zonal stats for two polygon layers: calculate proportion of feature cover within polygons

In order to calculate land cover diversity within defined patches, I need the coverage proportion of each landcover type for each patch. So I am searching for something similar to the zonal stats tool ...
3
votes
2answers
365 views

Geoserver couldn't read SLD - Raster Symbolizer as expected

I am trying to style a land cover map scheme II, on Geoserver. The sld has no errors. However, the raster value/color on the image couldn't match with the raster color/image/label on the sld. Below is ...
0
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1answer
58 views

What is no change class in NLCD 2011?

I have to use the NLCD 2011 dataset and I am trying to understand the "no change" class. This class is not defined in any of the legend descriptions (Anderson classification). What is the no change ...
1
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1answer
73 views

How to calculate distance from lat/long point to each habitat category in QGIS? [closed]

I am very new to QGIS and am struggling so hopefully someone will be able to help me with what I assume is a relatively simple task. I have a number of vector layers of land cover from the land cover ...
2
votes
1answer
106 views

What possible explanations are there for a dramatic change in vegetation appearance in Sentinel 2 data?

I'm looking at land cover in an area of South East Asia. I pulled down Sentinel 2 imagery for Feb 2017, and used the QGIS SCP plugin to complete the land cover analysis, as per this tutorial: https://...
2
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1answer
1k views

Accuracy assessment using Google Earth Engine?

I'm using Google Earth Engine for Land Cover change detection, I would like to know whether we can generate Error Matrix (Accuracy Assessment) for a classified image in Earth Engine or not?
0
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1answer
549 views

Selecting pixels in raster using polygon selection tool?

I want to reclassify landcover image manually with respect to online imagery. I am looking for a software/plugin/script to manually select raster pixels using polygon selection tool and could be able ...
1
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2answers
2k views

Corine Land Cover Codes

I'm working with Corine Land Cover Map 2012 in QGIS. I can't find any information about the color code. Values range from 0 to 255 but there's no indication which value stands for which land cover ...
-2
votes
1answer
55 views

Seeking UK raster land cover? [closed]

We are looking for land cover data of the UK in raster form. Have tried downloading from 'Natural England' but this isn't the right format for ArcGIS Desktop. Needed for an undergraduate university ...