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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2answers
49 views

land Use land cover classification

I am working on Land Use/Land Cover Classification of the Hindon river(India) watershed extracted using Aster DEM. Landsat 8 scenes had been used and mosaicked for the required AOI using the Watershed ...
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0answers
32 views

how to use arcGIS to calculate the Conversion Probability certain land use to other land use?

I am doing dissertation about [predicting future urban expansion for Shannon River Basin In Ireland using Cellular Automata model and arcGIS] so at this stage I would like to calculation the ...
0
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1answer
23 views

GlobCover 2009 dataset - importing legend and colormap values into R

Does anyone know how to import a legend for a raster layer (loaded as a .tif) into R such that it can be attached to the raster file itself and used in plotting? In this case, I am using the GLC2009 ...
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1answer
61 views

Land cover modifications in different time periods

I have several shapefiles which contain buildings built in different periods from 1948 to 2013. My question is how could I see which buildings for example in were built 1948 but are missing in later ...
1
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0answers
17 views

LULC using SAR data

I have a Geocoded SAR data with me. I have to perform LULC classification. I have been given a shapefile (vector data) with the different LULC categories of the region. The region is mainly composed ...
3
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1answer
78 views

How do you classify unclassified pixels in a land cover geotiff tile?

While printing out the raw pixel values of a GEOTIFF land cover tile I found 90 % of pixels have normal values i.e. those that the documentation describes (8 bit integers describing a land cover ...
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0answers
39 views

Effects of heterogeneous vegetation in mapping canopy cover using randomForest in R

I have a 5.8 m resolution satellite image (LISS IV by IRS-P6, in bands 4, 3 and 2) of a densely forested region in the Eastern Himalayas. My objective is to predict regions of canopy cover. Regions of ...
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1answer
38 views

The stability of randomForest models after increasing predictor variables

With reference to the posts: Incorporating terrain data to predict canopy cover using randomForest in R and Random-Forest Classification of 10cm Imagery for species-distribution in R (no point-shapes) ...
2
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1answer
66 views

Incorporating terrain data to predict canopy cover using randomForest in R

This is a subjective question. Thank you bearing with me. I have a 5.8 m resolution satellite image (LISS IV by IRS-P6, in bands 4, 3 and 2) of a densely forested region in the Eastern Himalayas. My ...
0
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1answer
50 views

Creating raster depicting landcover/use change in ArcMap?

How would I create a conversion matrix in ArcMap 10.2.2 to display the changes between two rasters (Land Use Land Cover Maps)? I have produced Land Use Cover Change maps from temporal satellite ...
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0answers
62 views

Legend of CORINE land cover in ArcGIS 10.x layer file

I am looking for the legend of Land Cover (Corine Land Cover) for ArcsGIS 10.x. as a layer (.lyr) file. I want to symbolize the classes without setting the RGB color values one by one; especially for ...
2
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0answers
43 views

Calculate cover loss between years using r.mapcalc

I am working on forest cover raster data for 2 years and am interested in areas with >5% loss in forest cover. I am pretty new in GRASS GIS, so any suggestions for how to create a difference map of ...
4
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2answers
74 views

Random Forest to estimate land use in past with Landsat

I am new in Machine Learning and in R. I am working in my Master thesis. I am trying to estimate the LULC of the years 1984, 1990, 2000, 2011, 2014 for characterizing the forest dynamics. I have for ...
2
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2answers
64 views

Calculating forest connectivity for raster

I'm trying to calculate some sort of forest connectivity value for each pixel in my land cover classification. I would like to do this by calculating how many other forest pixels are directly ...
0
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1answer
44 views

When parametric classifiers fail?

In which situations are statistical assumptions (e.g. multivariate normal distribution within spectral classes) for parametric classifiers (e.g. maximum likelihood ) not valid for land-cover ...
4
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3answers
130 views

Estimating vegetation composition from digital images

I am running a Master's project researching Greater prairie-chicken nest and brood survival. Some of my intended covariates include local vegetation measures using digital imagery. I would like to use ...
2
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2answers
139 views

How calculate pixel by pixel the mode (statistic) of multiple rasters (geotiff)?

I have 12 land cover maps, and I would like to calculate the mode to each pixel of the 12 maps (they have the same resolution and dimension). I mean, the final map would be the mode for each pixel of ...
0
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2answers
96 views

Calculating gain and loss area of vegetation land from two lines representing different years using ArcGIS for Desktop?

How can I calculate a gain and loss area of vegetation land having two different lines that represents vegetation in different years. Edit: There are two polylines, one represents the edge of ...
1
vote
1answer
64 views

Globcover 2009v2.3 Legend Qgis

How can I add a legend to a raster to the Globcover land cover dataset in QGIS without plugins? The data can be found here http://due.esrin.esa.int/globcover/ Unfortunately, as far as I know, QGIS ...
3
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0answers
100 views

How to calculate areas in raster files

I got three files. The first is a shape file for country boundaries and the second and third are two raster files with the global land covers for 2005 and 2009. I'm thus encharged to calculate the ...
3
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1answer
133 views

Estimating tree cover (or other vegetative cover) over impervious cover using NLCD data

Has anyone attempted to estimate tree cover or general vegetative cover over impervious cover using the NLCD data sets? The provided layers (land classification, tree cover, impervious cover) could ...
1
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1answer
38 views

Automation of Land Use composition in ArcGIS

I am using ArcGIS 10.1 and I have two shapefiles I'd like to process: A Polygon shapefile with 1000 features representing lakes covering a specific area, and; A Polygon shapefile with the Land Use ...
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0answers
24 views

Public Categorized LULC Data for Sweden (Better than CORINE?)

I am looking for categorized Land Use Land Cover for the country of Sweden - as similar to the NLCD data for the United States as I can possibly get. So far, the best I can find is the 100 meter ...
2
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0answers
44 views

filling the attributes according to intersection of two layers (Postgresql)

How to automatically fill attributes of a point layer according to the exact position in the polygon layer? I mean how to write a command in PostgreSQL to automatically fill the attributes by the ...
5
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1answer
117 views

Creating forest patches from land cover layer?

I have a land cover layer from which I've extracted the tree canopy class and set all values that are not tree to NULL. I've also converted it to a vector and exploded it to make single part features. ...
2
votes
1answer
185 views

Reclassify on land cover raster won't work

I'm new to GIS so I apologize if this question is basic but I couldn't find my answer online. I'm trying to reclassify a land cover raster from the National Land Cover Database. I want to reclassify ...
4
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4answers
600 views

Extracting tree crown areas from remote sensing data (visual images and LiDAR)

I am looking for a method to process a remote sensing image and extract the crown areas of the individual trees from the image. I have both visual wavelength areal imagery, and lidar data from the ...
1
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0answers
100 views

Comparing unclassified super-objects with classified sub-objects

I have two shapefiles exported from ecognition. the first shapefile contains the land cover classification and the 2nd one contains unclassified superobjects of the 1st shapefile. I want to compute ...
0
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0answers
43 views

Total area of ArcGIS Intersect output is NOT equal to the smaller input?

I have two polygon inputs that share the same projected coordinate system - one is land cover data, the second is parcel data (of smaller total area). When I execute a standard geoprocessing ...
2
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3answers
323 views

Equivalent of CORINE land cover data sets for rest of world

I am looking for the equivalent of CORINE land cover data sets (100 meters) for the rest of the world; not merely urban areas but any area in general. I see sousa's question unanswered so I thought I ...
1
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1answer
108 views

Extraction of pixels from layerstacked NDVI image

How do I get rice pixels only from layerstack NDVI (modis) or SASI image? I also have a thematic rice image Please tell me how to do in erdas.
3
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0answers
101 views

How to use WEKA J48 classifier for satellite image classifications

Basically I am trying to build a tool from WEKA software using the J48 classifier for automatic satellite image classification to build landuse land cover maps. Could somebody please help, as I am not ...
1
vote
1answer
130 views

How to calculate raster data in vector area?

I have two layers. One is a layer of USA ecoregions (there are 9 ecoregions). It is not raster (so it's vector?). The other layer is the National Land Use Data set (so I know where there's ...
1
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1answer
208 views

Mapinfo Conversion Plugins

I have created a land classification using QGIS in Geotiff format and need to convert this to Mapinfo format. I tried to used the conversion tool file type (Northwood Classified Grid Format .grc ...
1
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1answer
63 views

Easy Guide to ESA satellite data?

Can anybody provide user friendly guidance to ESA datasets? What is available? When will new stuff be available? I struggle to work out what might be interesting amongst the many websites and their ...
1
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0answers
67 views

Maxent output clips to minimum extent of all input variables

I am experiencing an issue with the spatial extent of my output ASC files. I am using the UK Land Cover Map (LCM) 2007 at 25 metres resolution as a categorical variable in my Maxent modelling, ...
2
votes
1answer
100 views

Where can I find official Land Use/Land Cover GIS data for Ecuador?

Right now I'm specifically looking for Land Use/Land Cover data but things like roads and soils would be handy in the future as well. In the U.S. my source for nationwide LULC data would be the ...
1
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2answers
105 views

How to add polygon layer into raster data?

I performed a supervised land-use classification with Erdas. Landsat data was used in ArcGIS to Digitize urban areas as polygon shapefile. I want to insert these polygons into the land-use raster ...
0
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3answers
495 views

How to create several header files to open AVHRR NDVI3g (GIMMS) files?

I have downloaded GIMMS NDVI3g data from http://ecocast.arc.nasa.gov/data/pub/gimms/3g/ I now need to open the files in arcgis. I have the follwing GRID PARAMETERS: grid-name: Geographic Lat/Lon ...
0
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0answers
48 views

Extract individual land cover classes from NLCD dataset in ENVI

I have a National Land Cover Dataset with 16 different classes. Is there a way to extract the pixels from each individual class and save it as a GeoTiff using ENVI (either Classic or 5.0) so that in ...
1
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1answer
179 views

Habitat fragmentation tool error

I am trying to calculate the habitat fragmentation of a forested region in Africa in order to protect the areas less fragmented. I have used the tool "Landscape Fragmentation Tool V2 requiring Spatial ...
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0answers
73 views

Distinguish between the types of cultivated crops in remote sensing

I recently produced map of LULC but there is the difficulty of distinguishing between the types of crops. Is there a method to distinguish between the types of cultivated crops such as wheat, barley, ...
0
votes
1answer
178 views

Postgis array query

I have a Postgis database with land cover vector data with the following layout: select * from CLCtable limit 0; outputs: gid | code_06 | id | remark | area_ha | shape_leng | shape_area | the_geom ...
0
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0answers
58 views

High resolution global land cover [duplicate]

I'm searching for world land cover data with higher resolution than the global land cover. I'm working on fire prediction algorithms and I want to do a nice browser based demo were you can select a ...
1
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2answers
173 views

World Land Cover data

I need to get land cover data for the entire world. I'm using corine land cover data for Europe: http://www.eea.europa.eu/data-and-maps/data/clc-2006-vector-data-version-2 but I have no idea how to ...
0
votes
1answer
84 views

What tool breaks up raster cells into individual values based upon contiguity?

The green values have a COUNT attribute of 13418. I will want to use a tool that lumps the COUNT attribute and reclassifies based on values. But first it appears I will need to break up the raster ...
2
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1answer
99 views

How to select a part of a land cover type a certain amount of feet away from another land cover type

I have raster Landcover type Urban combined with Forest all within the county raster perimeter. I want to make a layer of only the forest cells that are more than 500 feet from an urban cell, so that ...
3
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2answers
135 views

Is there a database/service that allows me to get the terrain type to a coordinate?

I hope i'm not totally wrong with this kind of question at this stackexchange page. Is there any sort of service avaiable that gives me (or allows me somehow to generate) the areatype to a coordinate? ...
1
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1answer
98 views

Satellite imagery options for small/medium sized countries?

I need to create land cover classifications for a couple countries in central/eastern Asia. The largest country is 50,000km^2 and the smallest is 10,000km^2. What are my options for recent imagery? At ...
0
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1answer
468 views

Issues calculating NDVI from ASTER

I'm having an issue with ASTER data. I have two mosaics; one for 2008 and one for 2012. Both are composed of 4 ASTER scenes and the scenes are all from the same two month period (i.e. no seasonal ...