Open Data Stack Exchange
Open Data Stack Exchange

Questions tagged [geospatial]

Geospatial pertains to the geographic location and characteristics of natural or constructed features and boundaries on, above, or below the Earth's surface, particularly referring to data that is geographic and spatial in nature.

847 questions
13
votes
1 answer

Resources to create CC0/ CC BY cartography?

Cartography and map-based mashups are often based on Google Maps/ Google Earth (all rights reserved) or Open StreetMap (ODbL/CC BY-SA), neither of which are compatible with publishing the results under CC BY (default license for open-access…
Daniel Mietchen
  • 389
  • 1
  • 9
11
votes
2 answers

How does Google Maps get traffic info?

I am living in Croatia, and I for sure know that our government and road regulating authorities didn't sign anything with Google in regards to giving the data away. So, how can google, in real time, know the traffic on our roads?
Daniel Mošmondor
  • 261
  • 1
  • 4
8
votes
2 answers

High resolution population density maps in the US

I want to write a districting algorithm like the one found on RangeVoting.org: It looks like they have a pretty good source of population density. Is there somewhere I can find a similar source of data?
John Gietzen
  • 181
  • 3
7
votes
2 answers

Lake Victoria bathymetric data

I am trying to find bathymetry for Lake Victoria (or portions). Any GIS format and almost any resolution will do. As a last resort a hydrographic chart will suffice. https://gis.stackexchange.com/questions/116738/lake-victoria-bathymetric-data
If you do not know- just GIS
  • 294
  • 1
  • 9
7
votes
2 answers

Obtaining longitude/latitude boundaries for Google Maps regions

Some locations on Google Maps are not strictly a single address and are instead denoted by a shaded area. (For example, any state or provincial park, or of specific interest to me, the Acadia University campus). Is there any way to obtain a set of…
Mr. DOS
  • 173
  • 4
5
votes
1 answer

Satellite Images of Earth from low altitude

I am looking for satellite images of the US with a high resolution. I would like the images to be the same resolution as Google maps when all the way zoomed in. Is there open satellite images like this? I do NOT need any additional information in…
user18101
  • 221
  • 1
  • 4
5
votes
2 answers

World Marine Regions & Subregions Polygons

I'm looking for a set of world marine regions & subregions to help augment some analyses I'm doing with the ASAM database. I found the following: at http://fas.org/irp/world/para/docs/geol_geo.htm but I'm at a loss as to where the shapefiles are…
hrbrmstr
  • 191
  • 5
4
votes
0 answers

Dataset/database for the evolution of world's political entities (countries) along the years?

What would be the most accurate or complete source of data about the boundaries of states or other political entities, at different times in human history ? (In order to represent how the boundaries evolved along those years.)
wip
  • 141
  • 2
4
votes
3 answers

download Great Britain boundaries as shapefile for GIS

I am looking for a shapefile (readable e.g. in QGIS) which only contains the Great Britain boundaries. In other words, I only need the island/s boundaries. I have already checked and downloaded the 'Boundary-Line-GB' from OS Open Data…
1000111000
  • 141
  • 7
4
votes
1 answer

Clouds realtime

Is there somewhere free maps of clouds in real time? They should be used for the 3D model of the Earth (must be free of the Earth's surface). I found only this, but there are an uneven stitched (there are breaks) and clouds cover the surface of the…
Ni55aN
  • 171
  • 1
4
votes
0 answers

Heat map of Belgium

Is there a heat map covering Belgium? having enough resolution to be able to differentiate between houses would be ideal.
Samy Geronymos
  • 211
  • 1
  • 4
4
votes
2 answers

Determining time zone and daylight savings time from latitude and longitude?

I have about 5,000 weather stations with its' lat, lon coordinates. I would like to determine which Time Zone they fit into and whether they observe daylight savings time. The sample of data looks as follows: Austin, TX: 30.183, -97.68, US Central…
Kevin P.
  • 181
  • 6
4
votes
1 answer

Where can I download a raster with the elevation data of the whole US?

I know about USGS and USDA have DEM files but they are in small blocks, and I need the whole country. The closest that I've been with solving this is finding this website that contains all the files that I need but I can't download cause there is a…
rolo
  • 73
  • 5
4
votes
1 answer

Free Map matching benchmark data

I have my own map matching algorithm and I want to compare it's accuracy to some other algorithms. Is there a free trace dataset that has a confirmed match for each trace (ground truth), so I can perform the comparison?
Fido
  • 163
  • 3
4
votes
1 answer

Vector layer of the Jerusalem city line ("הקו העירוני")

I would like to guide a tour in Jerusalem sometime next week. For the historical and political perspective, I would be happy to show the City Line on a modern Google Map during the tour. I can either use a existing vector data or georeference a…
Adam Matan
  • 141
  • 2
1
2 3 4 5 6