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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22
votes
4answers
50k views

Seeking Country/State/City Database? [closed]

I am creating a directory which uses locations to categorize all listings. Instead of relying on user input, I'd like to provide a list of locations which the user can select. I have already tried ...
15
votes
6answers
10k views

Seeking China data? [closed]

I'm looking for good free online sources of vector (shapefiles of cities, provinces, terrain etc) and raster data on China. Are there any open repositories of this type of data?
22
votes
3answers
1k views

How can we protect GIS data?

I have found a very interesting paper here related to this topic. I just want to have views/ideas from other professional about how we can protect GIS data using Cryptography or Digital Watermarking? ...
16
votes
7answers
7k views

Seeking neighborhood boundaries globally?

Besides Zillow's creative-commons licensed neighborhood boundaries shapefiles, what sources of neighborhood boundaries are there? Not just in the US, but all over the world. Free/open source is ideal,...
23
votes
17answers
96k views

Seeking full list of ISO ALPHA-2 and ISO ALPHA-3 country codes?

I'm searching for a full list of countries with their country codes. Like on this page (need full and valid): http://www.nationsonline.org/oneworld/country_code_list.htm
11
votes
8answers
12k views

Seeking Australian Spatial Data?

I already have basemap data. For that Bing Maps or OpenStreetMap are fine. However, for demonstration purposes I need data for operational layers that I can throw on top of this. It needs to be ...
22
votes
7answers
4k views

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 / ...
17
votes
6answers
3k views

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 ...
13
votes
4answers
3k views

What is a good taxonomy or naming convention for files and folders containing GIS data? [closed]

My company has collected about 30 TBs of GIS data over the past 8 years, and I always find myself asking the following questions: What type of data do we have for a given geographic area? What are ...
14
votes
2answers
3k views

Retrieving Wikipedia's coordinate information?

I'd like to add icons to my map showing locations which have Wikipedia entries. The WikiLocation API is a great resource for determining Wiki entries near an XY location, but it has limitations (20km ...
6
votes
4answers
2k views

Is there a source for historical shapefiles of Europe in the modern era?

Is there a source for historical shapefiles of Europe in the modern era, i.e. starting ca. 1400? I know that "where can I find historic border data" questions were asked multiple times but I couldn't ...
9
votes
4answers
11k views

Finding free building height dataset for major cities around world? [closed]

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 ...
6
votes
5answers
17k views

How to convert WKB to WKT?

how can i convert wkb to wkt form ... i stored coordinates in wkb but now can it will display to use in wkt form
5
votes
3answers
3k views

Does a national(USA) interstate rest stop/rest area dataset exist?

And I don't care about format--worry about that later! I found some maps in Google maps, usually per state. I also have one map made my someone else, that no longer appears in the Google Maps search ...
4
votes
3answers
1k views

Are there better climate data than Worldclim for Europe?

I am looking for the best available climate data in Europe. Worldclim seems to be the best source of information for global data, but I am wondering if there is a higher resolution (better than 1km ...
4
votes
5answers
8k views

Free sources of mapping data for France [closed]

We are moving to France soon, and are currently investigating a lot of areas. Does anyone know of good online/offline resources for French mapping? I am very interested in mapping, weather, ...
13
votes
2answers
3k views

Where can I find historic country border data?

I am looking for border polygons from World War I (from 1914-1918). Is there a resource out there that maintains this kind of information?
8
votes
6answers
6k views

Where can I get 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?
3
votes
3answers
1k 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 ...
2
votes
1answer
2k views

Seeking outline coordinates of bodies of water (lakes, rivers, ponds) for country? [closed]

I'm in need of acquiring the coordinates of the outlines of all the water bodies inside a country, with the exception of "Sea" or "Ocean" water. Right now, I'm manually outlining the lakes and rivers ...
7
votes
1answer
16k views

Seeking elevation data for UK?

I'm looking for digital elevation data for UK. Does anybody know if there is a good service providing data for free that are of better accuracy than ASTER-DEM that is around 30m and, if not, what is ...
4
votes
2answers
209 views

Seeking geographic information for American and world parks and cities?

I am working on building out park data for my web site. My site is about hiking, so I want to get a list of parks and cities in the world. Where can I get/download/see such unified information?
3
votes
3answers
2k views

Where can I find the finest granularity of 2010 US census population information?

I am writing a re-districting application where I want to be able to create US voting districts based on geographic coordinate population data. In a perfect world, I would have the population for each ...
2
votes
3answers
3k views

Downloading US Census data?

I'm in a introduction course for ArcGIS and I'm just starting to work on my project. I'm trying to create a map showing the relationship between poverty and education. I also want to try and present ...
1
vote
2answers
6k views

Seeking Indian city points and village boundaries?

I am looking for Indian city/village points and village/Taluk boundaries for India. A perfect example what I am looking for is here for the State of Haryan, produce by Haryana Space Applications ...
1
vote
0answers
3k views

Seeking block (sub-district) level boundaries for India?

I'm looking for block (sub-district) level shapefiles for India. The GADM database only has files for the 2300 Tehsils, whereas I'm looking for the about 5500 Census blocks (sub-districts) for any ...
0
votes
4answers
649 views

Illinois Legislative Zip to District Match Data Set

I have the Zip +4 for the about 650 areas and I need to find Illinois Senator and Rep code, address, name. How can I solve this issue. Did anyone solve this issue using any vendor data? We do not want ...
9
votes
0answers
496 views

Seeking open raw LiDAR or laser scanner data? [duplicate]

I'm looking for aerial LiDAR or terrestrial laser scanner data in laz or las format preferably from an FTP site. Does anyone know which countries have that data available to the public? From my ...
6
votes
2answers
3k views

Where can I find some shapefiles of global climate/climatic zones

Have been looking around a bit for a shapefile/kml/etc file of global climatic zones (as listed here: https://en.wikipedia.org/wiki/Geographical_zone) -- temperature, subtropical, tropical, etcetera. ...
6
votes
2answers
4k views

Locating shapefile of European railways for goods transportion?

We are trying to make a project about European goods trade so we need railway data in shapefile format. More specifically, we are trying to find the potential of mine products being exported from ...
2
votes
2answers
9k views

PLSS shapefiles - alternative to geocommunicator.gov?

The BLM's website geocommunicator.gov is down and I'm wondering if anyone knows of a second source for PLSS shapefiles.
2
votes
2answers
3k views

Where to get school zone shapefiles?

Census.gov usually makes available the shapefiles containing school zone boundaries. Due to the US government shutdown, census.gov is down. Does anyone know where to download a recently archived copy?
2
votes
2answers
181 views

Seeking downloadable images for night?

Where can I download freely available images for night from for South Asian region? ?
2
votes
1answer
4k views

How to automatically fill a lat/long in attribute table

I need to plot the distribution of a plant species on a map. I have created a shapefile for the species plots (name of file is PLANT). The coordinate system of this file is WGS84. On the attribute ...
2
votes
1answer
175 views

Conversion of coordinates of “Bochum coordinate system”

I need to convert historic coordinate data into more recent Gauß-Krueger data. Specifically, I need to convert "Bochum coordinates" used till 1960 in the local coal mines into DHDN/Gauß-Krüger zone 2 (...
2
votes
3answers
11k views

Complete list of UK postcodes plus their city, county, uk country

Is there a free data set of all current UK postcodes (about 1.7 million-ish) plus their city name, county and UK country (e.g. Liverpool, Merseyside, England) and ideally lat, long, east, northings?
1
vote
2answers
2k views

Seeking shapefile for postal codes/zip codes of India?

I have been searching for free/paid (preferably free) sources for postal code shapefiles for India. Does anyone know where I can find one?
1
vote
1answer
3k views

Seeking India population by village, town and city for 1981, 1991, 2001 and 2011?

Trying to source population data for every village, town and city in India. I have been able to extract data for 2001 & 2011 from the census site, but am having a tough time finding a reliable ...
1
vote
1answer
1k views

Seeking shapefile of Indian electricity grid? [closed]

Does anybody know where I can find a shapefile of the major components of the Indian electricity grid? Ideally, I'd get transmission/other high-voltage lines, substations, generating units, and ...
1
vote
1answer
1k views

Seeking up to date Italian administrative boundaries? [duplicate]

I am after Italian GIS data - administrative boundaries such as: Regions (Regioni) Provincies (Provincie) Municipalities (Comuni) Districts (Quartieri) City quarters (Contrade o Rioni) Zones (Zone)...
0
votes
1answer
636 views

Opening data from NSIDC in QGIS?

i download data from here https://nsidc.org/data/SPL2SMP/versions/3#, but i can not open it in QGIS. Do you know how to open this data in QGIS?
0
votes
1answer
286 views

Simple georeferenced 3D data format for building models

I am looking for a simple georeferenced 3D-data format to store very simple building models. Each building should be represented as a number of poylgons, semantics do not matter. It would be ideal if ...
16
votes
4answers
814 views

How to handle TIME in GIS?

Is there any way or any idea on how to handle Time attribute in GIS? For example, which are the ways to specify that an object is at a place at a given time interval and them it is in another place ...
22
votes
8answers
18k views

Near real-time sources of lightning strike data

I am wondering if anyone has any suggestions on sources of near real-time lightning strike data available for download? For example, Intellicast.com has a map of strikes, but makes no mention of the ...
10
votes
5answers
25k views

Free radar (SAR) satellite data [closed]

I'm looking for free (non-commercial use) sources of radar (SAR) satellite imagery. Does anyone know of sources?
15
votes
7answers
4k views

What iOS (iPhone/iPad) app from the App Store can I use to collect data?

What iOS app from the iTunes App Store can I use to collect data (mainly points, perhaps photos) and later import them into my GIS? I am mainly interested in an out-of-the-box solution, not develop ...
11
votes
4answers
8k views

OpenStreetMap Neighborhood Boundaries

Is it possible to download neighborhood boundaries from OpenStreetMap? I see on maps that they often indicate neighborhood names; is there a way to retrieve their coordinates and boundary polygon ...
18
votes
3answers
2k views

What is the wire format for Google's new vector map tiles?

Google recently released new vector cartography for their mobile maps. I'm curious if anyone here has any insight into the wire format they use for transmission? I've experimented with a few formats ...
14
votes
2answers
3k views

Google Fusion Tables vs Amazon Web Services: which is better for GIS data?

What are the pros/cons for storing storing spatial data in Google Fusion Tables versus Amazon Web Services? Factors would include: Cost, performance, ease of update.
12
votes
4answers
22k views

Looking for ZIP+4 boundaries

I know where to find 5-digit ZIP code boundaries. Do 9-digit ZIP code boundaries exist? If so, where might I find them?