Questions tagged [africa]
For questions which are specific to the region/continent of Africa.
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Extracting Sub-National admin boundaries or regions from GRUMPv1 or GPW v4
GRUMP and Gridded Population of the World (GPW), v4 provides population and demographic values for sub-national levels. However, I am unable to extract the polygons or boundaries from their datasets. ...
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1answer
60 views
Seeking accurate WMS server for Kenya?
I am looking for an accurate Map for visualizing positional data collected in Kenya. Right now I am using EXOMAPS (https://tiles.maps.eox.at/wms), in particular, a Sentinel2 cloudless view, but I am ...
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0answers
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Seeking Soil Mapping data in Southern Africa?
I am researching soil quality in Zambia but I’ve been unable to find georeferenced soil datasets (e.g. soil samples) for my area of interest. Specifically, I want to get yearly soil sampling data in ...
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1answer
112 views
Large Scale Watershed Delineation
Using QGIS,I attempted Africa's watershed delineation taking the following steps:
Downloaded DEM from earthexplorer USGS (GTOPO30)
Created a mosaic of the downloaded DEM
Reprojected the mosaic ...
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1answer
174 views
Number of Eastern Africa countries [closed]
Are Rwanda and Burundi part of "Eastern Africa countries" or "East African countries". Some sources are differing.
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1answer
4k views
One shapefile for African continent containing counties/regions?
I use R to do my geo stuff with two limitations. First, I'm pretty new to all the geo stuff, and second I got lost while searching for a shapefile. I'm looking for a shapefile that contains all the ...
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2answers
3k views
Crop a raster file in R
I have a UN-Adjusted Population Count dataset, for the year 2015, stored in a TIFF file format (~450MB) downloaded from http://sedac.ciesin.columbia.edu/data/collection/gpw-v4/sets/browse
In R I am ...
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1answer
171 views
Africover data, where is it now located? [closed]
Africover geographic data used to be at http://www.africover.org. It is no longer here. Where is the Africover data now located?
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Looking for Historical wind data (direction/speed) for E. Africa or greater
Does anybody know of a source for wind data ~04 - 14 for E. Africa or a larger area. I have looked at a number of sources but have not found anything for these consecutive years.
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1answer
245 views
Defining the correct AEA proj4string for FEWSnet Rainfall Data (Southern Africa) in R [closed]
I have some general questions about how to go about solving this problem:
I am trying to incorporate FEWSnet's monthly Rainfall Estimate data from 2014-2015 for Southern Africa into an analysis where ...
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0answers
459 views
Seeking free vector data on paved roads in Africa? [closed]
I have recently come across vector road data from the Africa Infrastructure Knowledge Program (http://www.infrastructureafrica.org/documents/list/roads). I found these data helpful for three reasons:
...
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2answers
439 views
Topographical Elevations for Central Africa and Cameroon
I am using QGIS and I have been faced with the problem of topographical maps. From searching online I could only find data for the United States. Google maps offers elevation contours, however I am ...
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3answers
1k views
Administrative level GeoJSON Polygons for African Countries
I'm very new to GIS and I have spent the last few days trying to find some kind of database with the aforementioned polygons with no luck. The purpose is simply to label a location at district level ...
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1answer
1k views
Seeking shapefile of administrative divisions of Cote d'Ivoire (Ivory Coast) post-2011
I've been trying to find a shapefile containing CIV's administrative divisions (preferably down to the level of sous-prefecture) reflecting the national reorganization of 2011 but have had no luck. ...
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1answer
88 views
Satellite imagery alternatives for land use/cover classifcation
Apart from Landsat imagery, which other satellite imagery is good for land use / cover studies and can be obtained free of charge?
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2answers
2k views
Orthophoto Free Download?
I'm looking for Image datas for East Africa. Specifically for Rwanda. Does anyone know if such data are available at all free? My target is to digitize roads and buildings with the help of image datas....
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4answers
481 views
Calculate percentage of land cover within a buffer in meters, not decimal degrees
I am trying to calculated the percentage of land cover within a buffer area (3000m) around my coordinates. My output is in decimal degrees but I want it in meters or at least that I can calculate the ...
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2answers
493 views
Temperature data for Africa
Where can I find daily minimum / maximum temperature for Africa, possibly in a raster format?
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2answers
84 views
Are there publicly available run-off data for Africa?
I was wondering if there are good publicly available dataset for surface run-off (water)?
I have a rough idea that surface run-off should be some function of rain-fall and soil infiltration/...
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3answers
2k views
Is there hydrologically correct water-course data for Africa
I was wondering if there are any hydrologically correct river-channel data available for download for Africa?
By hydrologically correct, I mean
the topology should be correct. Connected river ...
2
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1answer
687 views
Lake Victoria bathymetric data
I am trying to find bathymetry for Lake Victoria (or portions thereof).
Any GIS format and almost any resolution will do.
As a last resort a hydrographic chart will suffice.
2
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1answer
633 views
Seeking shapefiles for global border crossings?
I am trying to find a shapefile or set of shapefiles that contain global border crossings. Basically, what are the points of transit between one country and another.
Does anyone know if this data is ...
2
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2answers
582 views
Looking for a wind WMS for Europe and Africa
I was looking for a wind WMS but couldn't find. I wanted a wind WMS for Europe and Africa. Does anyone know about any?
