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.

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52 votes
8 answers
86k views

Seeking administrative boundaries for various countries?

After learning about the US Census's TIGERLines datasets I've working with the following layers, from the USA data Country boundaries State boundaries County boundaries City boundaries ZipCode/...
65 votes
8 answers
83k views

Seeking sources for US Zip Code Boundaries [closed]

What are the most up-to-date source for US Zip Code boundaries? My first thought was TIGER, whenever that comes out, but then I thought that the Postal Service might be a better bet.
39 votes
11 answers
53k views

Seeking 2010 Census Block data

I would like to download 2010 Census Block Data for several towns and I can't seem to find it on American Factfinder. If it is not there, then where could I find it?
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14 votes
4 answers
22k views

Saving project with data source path as relative in QGIS?

Is there an option in QGIS to save the project with the data source being a relative path? I don't see the option here. QGIS Wroclaw1.7.3
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  • 3,201
35 votes
12 answers
47k views

Bulk geocoding 20 million US addresses [closed]

Are there any free or reasonably priced databases for the US which can be searched and return latitude and longitude information?
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22 votes
10 answers
13k views

Seeking GIS data for fast food industry?

I am working a small project related to fast food industry. I am trying find GIS data for fast food chains like subway, MC Donald's, Arby's, etc in state of Ohio. Basically, I am looking for point ...
12 votes
4 answers
12k views

Ordnance Survey grids - download or generate?

Does anyone know a source from which to download vector UK Ordnance Survey grids at varying resolutions? Or failing that, a tool that can create an OS grid at a specified resolution? There are plenty ...
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15 votes
5 answers
31k views

Seeking free elevation data for Europe?

Where can I find free elevation data for Europe? The available resolutions and terms of use are important details that I also seek.
12 votes
8 answers
49k views

Seeking Postcode Shapefiles for UK?

I am trying to find the shapefiles for postcode sector and districts in the UK. Specifically inside London. I know I can go and pay for these but I only really need to use them once. I want to ...
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8 votes
3 answers
23k views

Finding municipal-level administrative boundary data for India? [duplicate]

Does anyone know how to find a shapefile with boundaries of Indian municipalities? I have tehsil boundaries as for year 2001, but I would like boundaries of municipalities and, ideally, also ...
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  • 239
15 votes
3 answers
9k views

Converting SimpleGeo Places GeoJSON file to shapefile?

SimpleGeo has recently made their "Places" data set freely available which is GREAT, because now we can use it for our own purposes, even offline. So I went about downloading the 2GB dataset, which ...
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  • 22.4k
12 votes
5 answers
13k views

Downloading SRTM data

Is there an easy way to mass download SRTM data? The data is published for download here, but it's sliced into thousands of small files, and I don't see an FTP option for more efficient downloading......
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  • 1,347
7 votes
4 answers
7k views

Site to download al USGS Topo Maps in bulk

I am trying to create seamless topomap WMS or TMS layer that covers the entire US (not interested in geo-pdfs). To do that, I need either the rasters (geo-tiffs, etc) or preferably vectors (whatever ...
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11 votes
3 answers
12k views

What are the existing datasets of world maritime routes?

I have a list of cargo ports of all over the world and need to show some port-to-port trips on a map, and also to compute lengths of these trips. For that, I need a dataset of actual maritime routes (...
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5 votes
2 answers
673 views

Available US State or National business (or employer) database lists?

This question dovetails with this post on geomarketing applications. I am familiar with some of larger, paid-for business registry's like InfoUSA and Dunn & Bradstreet. While the detailed ...
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  • 22.4k
14 votes
6 answers
2k views

Ways to visualize multiple large LiDAR tiles?

I want to load approximately 10 large LiDAR tiles for analysis. I have tried using ArcScene but it appears there is a limit on how much data ArcScene can handle at one time. Each tile is 65-90MB in ...
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3 votes
2 answers
2k views

Convert raster to CSV with lat, lon, and value columns

I'm looking for a process to convert ASCII gridded data (in this case 60min/1 degree gridded ASCII population data (GPW) from SEDAC: https://sedac.ciesin.columbia.edu/data/set/gpw-v4-population-count-...
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56 votes
11 answers
125k views

Obtaining up-to-date list of US ZIP Codes with Latitude and Longitude Geocodes? [closed]

NOTE: This began as a question on Stack Overflow, which has subsequently been closed. I also noticed a similar question about Most Up-To-Date Source for US Zip Code Boundaries, but I believe this ...
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19 votes
1 answer
128k views

Listing available online WMS services (Weather, Land Data, Place Names)?

I'm Looking for WMS services freely available to the public to overlay on my application, specifically weather and AIS information. Perhaps this is a good place to list some available online WMS ...
14 votes
15 answers
32k views

Seeking point cloud (LiDAR) data? [closed]

Is there any freely available pointcloud data? I'm especially interested in dense clouds of small areas(5m to 100m radius) but anything else would be fine too. I've found that these pages have ...
22 votes
5 answers
10k views

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 ...
28 votes
6 answers
69k views

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 ...
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  • 411
15 votes
8 answers
4k views

List of US government free GIS data online

The US government publishes a plethora of useful, high-quality GIS data sources online. The data includes: Municipal and international boundaries Classified points of interest Geographic maps ...
24 votes
6 answers
13k views

How to download the entire ASTER GDEMv2 dataset?

In October 2011, NASA released the new ASTER GDEM global dataset (30m) and I have been wanting to get my hands on it. The only problem is that it takes forever to download and I do not feel like ...
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20 votes
5 answers
20k views

Finding footprint data for US buildings?

Are there any sources for free and distributable building footprint datasets for major cities around the United States? Ideally, the data would also have the number of stories of each building; is ...
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18 votes
5 answers
49k views

Seeking shapefile of city boundaries in US?

Where can I find a shapefile that contains boundaries for the major cities in the United States? I have tried the census website but could not find anything.
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  • 2,089
7 votes
1 answer
3k views

Programmatically download (seamless) NED tiles?

I used to download 1/3 arcsecond elevation geotiffs from extract.cr.usgs.gov using web services. But a few days ago, that stopped working, probably because USGS reorganized their site. I tried ...
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  • 173
2 votes
3 answers
5k views

POI Datasets for North America

I use foursquare because it contains a lot of POIs. Which database do you use when you need a point of interest in North America?
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6 votes
2 answers
12k views

What is Google source for United States topographic data? [closed]

I'm looking for as detailed as possible topographic data for a certain area and have found information displayed by Google Maps to be far more detailed than what is provided by 7.5 minute maps (from ...
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  • 71
4 votes
2 answers
2k views

Using Google Earth imagery data for portable solution?

I wish to clarify with users who are using Google Earth portable solution. As per portable solution link http://www.google.com/enterprise/earthmaps/portable.html, we can create part of globe and ...
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  • 1,069
7 votes
1 answer
6k views

What is the highest obtainable resolution of FREE elevation data in the UK?

I am seeking closure with this question guys. I am aware of various sources of free elevation data ~30+ m, and I have been searching for higher resolution FREE data for a while now. This already ...
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  • 811
24 votes
6 answers
2k views

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 ...
18 votes
7 answers
4k views

Sources of realtime spatial data [closed]

I'm trying to set up a demo that serves up live spatial data, but am having trouble finding any suitable example data sources. Ideally I'm looking for something that updates every few seconds; either ...
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  • 12.4k
13 votes
10 answers
7k views

Need a Benchmark GPS Trajectory data-set?

I'm looking for a benchmark GPS data set, available for research purposes for free. I've found GeoLife GPS Trajectories dataset from Microsoft Research but I find it a little incomplete. What I need ...
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  • 489
16 votes
8 answers
80k views

Seeking Free Shapefile of European Countries?

I do not seem to be able to find a free shapefile of the European countries. This is the kind of map I am looking to populate with my own data using ESRI ArcGIS: The Eurostat website only seems to ...
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  • 177
16 votes
9 answers
11k views

Seeking Sentinel 2 Images for Nigeria [closed]

I need Sentinel 2 imagery of Nigeria, I signed up in Copernicus Scihub but typing Nigeria into the text box no results appear. I must be doing something wrong, how can be possible that they do not ...
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  • 531
22 votes
3 answers
2k views

Where to get street data in an importable format?

I don't want to use WMS layers, but to actually store the data in my local server, where can I find street data from the world?
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14 votes
4 answers
11k views

Downloading DEM data for US?

USGS has been moving towards serving data through The National Map Viewer. They have several WMServices through their website that serve elevation data to the public (hillshade & DEM). The ...
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  • 3,938
14 votes
4 answers
21k views

Spatial data? Geodata? Geographic Data? Geospatial data? [closed]

What word indicates spatial data within the geographical and geological domains? In particular, what word is precise enough for a science journal article (i.e., formal prose)? Candidates might include ...
13 votes
6 answers
85k views

Seeking Canadian postal code geometries

Where can I find the shapefiles for Canadian postal codes?
5 votes
5 answers
2k views

Provincial Base Mapping Data Sources in Canada

I'm very familiar with the Ontario Base Mapping Data, and am looking for similar data for other Canadian Provinces. Perhaps we can start a list of resources here? I'm looking for something at a larger ...
6 votes
3 answers
7k views

Source for UTM Zone File

I'm looking for a complete, freely available file showing UTM Grid zones. Preferably not a simplified version, but one that shows the full grid zones and all 'exceptions' (e.g. in Northern Europe) - ...
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  • 6,484
8 votes
7 answers
12k views

Seeking country, region, and city data

I need the names of countries, country regions and cities of the world. Where do I get that kind of information?
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8 votes
2 answers
56k views

Adding points to point vector layer using QGIS?

I have a point layer with multiple data points in QGIS, but I want to add some extra data points to it and adjust some info that we missed because the ground was wet and we needed to go around it. I ...
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  • 81
5 votes
3 answers
8k views

Using CityGML data with ArcGIS Desktop or QGIS?

I'm looking for advice on how best to use the CityGML data-structure and GIS (preferably ArcGIS/QGIS). I've read through their website and wiki and saw a list of software here that can be used to view ...
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  • 15.9k
4 votes
4 answers
18k views

UK coastline shapefile?

I'm looking for a shapefile for the coastline of the UK. I'm guessing the Ordnance Survey 'geo-portal' is the best place to get this, but whenever I go to the Ordnance Survey site I get the shakes. (...
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  • 2,973
4 votes
3 answers
2k views

How to transfer data from spreadsheet into shapefile?

I am looking at Deprivation in the UK and there is some good data in the form of spreadsheets on this website http://www.communities.gov.uk/publications/corporate/statistics/indices2010 I would like ...
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  • 255
9 votes
8 answers
4k views

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 ...
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  • 1,863
4 votes
3 answers
11k views

Seeking free, publicly available GIS data for Singapore?

Are there any free, publicly available datasets for Singapore? I've examined Openstreetmap, Global Admin Boundaries, GRUMP and the Natural Earth datasets, but I'm interested in vector data of higher ...
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  • 15.9k
19 votes
9 answers
3k views

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 ...

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