GIS Stack Exchange
GIS Stack Exchange

Questions tagged [data]

Any collection of related facts arranged in a particular format; often, the basic elements of information that are produced, stored, or processed by a computer.

Any collection of related facts arranged in a particular format; often, the basic elements of information that are produced, stored, or processed by a computer.

1610 questions
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The GIS of War - Tracking Conflicts and Their Effects

I was idly speculating on the many sorts of things people are keeping track of these days with GIS - natural/human catastrophes, demographic and economic patterns, climate change, etc. In that vein, I started to look around for GIS' applications in…
Nathanus
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Seeking comprehensive list of latitude and longitude values for cities around world?

I'm developing an application that calculates the distance between cities using their respective Longitude and Latitude values. But the problem is where to get a comprehensive list of latitude and longitude values of these cities?
hello
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Are any fictional worlds available in some GIS format?

Is there any fictional world (e.g. Middle-earth, Discworld etc.) which could be used in a GIS context? For example, an MBTiles archive and a shapefile or any other format usable with OpenLayers / Polymaps / Leaflet?
Nikolai Prokoschenko
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6 answers

Open access repository of general GIS spatial data?

As a newcomer to using GIS for research, I am wondering if there are online repositories for spatial data, similar to package repositories for Linux distributions. For instance, I would be able to find things like "bathymetric map of the world's…
hpy
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Is there a source for historical shapefiles and tiles?

Is there a source for historical shapefiles and tiles? Like the ancient Greece/Rome, medieval Europe and Japan? Ideally with multiple snapshots during different periods in their development, since they've gone through quite a bit of restructuring…
Alex K
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Finding GIS data sources for developing nations?

Not all countries have the benefit of funding/technologies for developing GIS data stores. I'm looking for a list of common GIS data sources that should be investigated when trying to build a good basis for GIS analysis in developing nations (e.g…
Radar
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Are there torrents that contain large free spatial datasets?

I've been having a lot of issues downloading entire datasets of SRTM or ASTER GDEM2 or similar free datasets, mainly because of poor services. Does anyone know of any torrents which contain such free datasets?
U2ros
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4 answers

List of language codes by country

Does anyone know of a list of countries with their associated official language codes? I haven't found anything by Googling yet. What I'm looking for is something like this: Country name/code Language code [...] Bulgaria (BG) …
Alex Ciminian
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8 answers

Are there sources for more esoteric data than streets worldwide?

Related to this question. For example, things like: political world map (as polygons) cities of the world geolocated climate data (avg temp, humidity, rain, as polygons), earthquakes, hurricanes (as polylines hopefully with strength as z-axis…
Vinko Vrsalovic
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Seeking world map with boundaries of regions and communities for commercial use?

I am looking for a vector file worldmap which should include as many boundaries reaching to a very small level (like ZIP-Codes/small communities/etc) as possible. The data of Natural Earth is quite good, but does not go that much in detail. The GADM…
Gideon
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Finding free building height dataset for major cities around world?

I am searching for building/property data which include building height, building area, lot size, and building type classifications(preferably as complete as possible). I am working on an Earthquake Model for highly urbanized locations, especially…
Georgiana
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11
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Where can I get data for traffic signals, stop signs, and other sign assets/inventory?

I'm working on a project involving roads. The quality of the service would benefit from knowing if a given road is continuous or if it's broken up by stop signs, traffic signals, and other things that effect a motorist. I haven't found anything…
Eric Palakovich Carr
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Where can I find a histogram of the grade of the Earth's surface?

I've found a histogram of the elevation of the Earth's surface on Wikipedia: However this doesn't give any information about the distribution of grade. For example, the entire surface could be made entirely of little hills and have a high grade…
dlras2
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Where can I find paved/unpaved road surface data for the US?

I'm currently working on a small program that evaluates OpenStreetMap data to calculate how twisty or curved roads are in order to generate maps of roads that may be of interest to motorcycle riders or other driving enthusiasts:…
Adam Franco
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Can I download the entire NRCS SSURGO database?

I am interested in downloading and using the entire USGS SSURGO database. The California Soil Resource Lab provides instructions on working with these data in R, but it starts with the assumption that I have downloaded tables as .csv files - but…
Abe
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