Questions tagged [africa]

For questions which are specific to the region/continent of Africa.

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15 views

Obtain area of forestland at regional/provincial level? [duplicate]

I am looking to estimate the area of forestland for certain countries in Africa. However, I need area of forestland at the regional/provincial/state level. Is it possible to get that data using Google ...
3
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2answers
63 views

Choosing appropriate projected coordinate system for Africa

I am using the NNjoin tool to compute the distance between points and a multilinestring. Both layers are in CRS 4326 and cover most of Africa. I've understood that I need to reproject my layers to a ...
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0answers
27 views

Exclusive Economic Zone (EEZ) and Regular Boundaries one shapefile

Does anyone have an idea if there is a shapefile of the merged EEZ boundaries and regular administrative boundaries? I need this data for entire Africa. I have downloaded the EEZ boundaries from http:/...
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0answers
21 views

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
103 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 ...
1
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1answer
238 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 ...
3
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1answer
211 views

Number of Eastern Africa countries [closed]

Are Rwanda and Burundi part of "Eastern Africa countries" or "East African countries". Some sources are differing.
2
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2answers
6k 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 ...
5
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2answers
6k 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 ...
-6
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1answer
199 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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0answers
134 views

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.
1
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1answer
304 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
485 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: ...
1
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2answers
467 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 ...
0
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3answers
2k 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 ...
1
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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
89 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
3k 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....
2
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4answers
553 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 ...
2
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2answers
550 views

Temperature data for Africa

Where can I find daily minimum / maximum temperature for Africa, possibly in a raster format?
0
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2answers
91 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/...
7
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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
790 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
705 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
651 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?