Questions about obtaining data.

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5
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302 views

Does the USGS SSURGO database have a web-based API that I can query?

Based on a previous question, Can I download the entire USGS SSURGO database?, it appears that it is difficult to import the entire USGS SSURGO database. The Web Soil Survey provides the ability to ...
5
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2answers
202 views

Location data for Nuclear Power stations in France

As it says on the title, does anyone know a place I can look at and/or download location data for Nuclear power installations in France? I believe it is well known data, but I cannot find it ...
5
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2answers
411 views

Visualizing and organizing traffic flow data for an intersection

I'm looking for advice on how to organize data that describes traffic flows through several unconnected intersections over several years. I'd like to learn about the most basic representation of this ...
5
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2answers
102 views

Any Piri Reis shapefiles?

Incredible claims have been made about a map named after its creator (Piri Reis). I was looking into digitizing the map and overlaying it with a modern map of the world, specifically the east coast ...
5
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1answer
122 views

Vehicle travel data for the USA

I'm looking for vehicle travel data in the USA - at any spatial resolution smaller than the unit of a state, and ideally at a city level. I'm interested in daily, or weekly data and also any ...
5
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2answers
277 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 ...
5
votes
3answers
302 views

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 ...
5
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2answers
607 views

Postal areas for Germany? - Shape?

does anyone of you know how and where I can download postal area districts of Germany in shape files (download free of charge if possible). best regards desputin
5
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1answer
92 views

What kind of high level semantic free GIS layers out there?

I'm looking for free GIS data that contains some high level information such as type of vegetation or type of soil or some other visual characteristics of the neighborhoods. I need more information ...
5
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3answers
606 views

How do I render data quicker in Arcmap?

Is there a way around to speed up the data into ArcMap ? When I converted the raster to polygon and some data would load up quicker and some other load slow. I am wondering if I could add the spatial ...
5
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1answer
410 views

Russian GIS Data

Which companies are the best suppliers of vector, geocoding, imagery, and POI data in Russia? Which companies provide a complete service (which includes the above data types and also routing, ...
5
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2answers
121 views

How to find library or other business POIs?

I am just starting an Intro GIS course, so I really have no idea what the best place is to find downloadable GIS data. I was really hoping to do my semester project on library or bookstore locations ...
5
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2answers
3k views

postprocessing GPS coordinates with RINEX data to improve precision?

Im doing some mapping for OSM in my region and I am curious if the precision of tracks from a GPS Receiver can be improved if they are post processed with RINEX data. The tracking is done with a ...
5
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1answer
459 views

Cleaning GPS track data

I have data captured with a GPS tracking unit. Some track have bad/cold starts and the only way to determine the track quality is by using the altitude. Unfortunately I don't have the raw GPS data and ...
5
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1answer
350 views

Geocaching - XY coordinates

I was wondering what is the easiest way to get XY geocaching coordinates (by a particular Area of Interest (AOI)) data in a spread sheet format that I could covert to a GIS layer? On the ...
5
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3answers
1k views

Best source for high-resolution satellite images free/low-cost?

I am doing a household survey in Kenya, and I need to ensure that my survey team visits every house within a given area. I've been going to google maps and right-clicking on roofs to get coordinates ...
4
votes
3answers
794 views

How can i transfer data from a spreadsheet into a 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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3answers
1k views

Open source database of world locations [duplicate]

Possible Duplicate: Comprehensive list of Latitude and Longitude values of cities round the world i would like to know if is out there any downloadable database of world locations, i know ...
4
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4answers
447 views

How to test whether two countries are adjacent?

I have an interesting question: Is there a dataset by which I can use to test whether two countries are adjacent? For example, if inputs are Mexico and U.S., they are adjacent; if inputs are England ...
4
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4answers
3k views

Where can I find a shapefile for the coastline of North America?

I am looking for a shapefile representing the coastlines of North America, such as something like this: http://www.diva-gis.org/gdata Does anyone have any suggestions?
4
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3answers
532 views

3D visualisation with open source GIS software [closed]

I'm searching for QGIS (or other open source GIS software) tools that can analyse XYZ data. Also I'm interested to hear about if anyone have migrated to non commercial software regarding geological ...
4
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2answers
265 views

Is there a simple interface from which I can extract average summer temperature and humidity for a list of latitude and longitudes?

I am interested in finding the summer average (either climatalogical mean or for a specific year) relative humidity and temperature for a set of globally distributed latitude and longitude ...
4
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4answers
218 views

Is city-supplied GIS data sufficient for transit operators or do they need their own set of GIS data?

City GIS data is usually built in a format where streets/avenues/boulevards/etc are modeled as lines that are geographically located in the middle of the streets/avenues/boulevards/etc. Is that ...
4
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2answers
586 views

Indian Latitude Longitude values

I am in need of around 10000 and odd Indian latitude and longitude values for my openlayers project. I have to load them in a postgis db. so a sql file or atleast text file would be better than a ...
4
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5answers
193 views

Where can i find Latitude & Longitude data for the coastlines of the world?

Im developing an application to print flight paths on a world map. To do this i need a dataset to describe the latitude and longitude of various coastlines (and country borders if possible) of the ...
4
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1answer
278 views

SQL Server data modelling + spatial data = what book?

What recommended book can you provide about data modelling for geographical spatial data (geometry) in SQL server?
4
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2answers
602 views

Historical Hurricane Tracks

I have found a great source for historical hurricane data, but I can't seem to find a way to download the track information. It appears that you can only view the data on the website. I was ...
4
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3answers
1k views

Advice on using CityGML data and GIS

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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4answers
303 views

In the UK, how do I convert from an address to a lat/long?

Please include where I can buy the dataset and how much it costs?
4
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4answers
667 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 ...
4
votes
2answers
948 views

How GIS and SDI (spatial data infrastructure) are related?

I read the definitions of both on wikipedia but they didn't mention any relationship between the two terms although there must be one because they are dealing with the same thing: spatial data. Can ...
4
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3answers
485 views

Do you know of any sites where I could find some cool recreational shapefiles?

Do you know of any sites that I could find some cool recreational shapefiles? An example would be shapefile of the golf courses, ski resorts, or maybe baseball fields in the united states?
4
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2answers
2k views

usa electric transmission powerlines shape files sources

Does anyone have a good source for these? I have some old (1993) data from the US National Renewable Energy Laboratory (NREL) and Cubewerx' WMS (Cubewerx are a spatial data provider); neither of which ...
4
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1answer
256 views

Can someone explain in simple terms the licence on Google “satellite” images?

What can I and can I not do with the Google satellite images?
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3answers
530 views

Canadian province boundaries in latitude and longitude

Are there any datasets available that give a list of latitude and longitude points for Canadian province boundaries? I don't need anything too detailed as I'm displaying collated data in smallish ...
4
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2answers
366 views

Where can I find GeoJSON resources files?

I'm looking for demographic information and various things, and most of the time data are available as CSV (my application use geoJSON format). Shall I encode the CSV to geoJSON or is there a ...
4
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3answers
94 views

Where can I find information concerning rivers?

I'm looking for information I can visualize in Google Earth concerning rivers, such as rapids, put-in points, take-out points, campsites, etc. Any idea how I can look for this kind of information?
4
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1answer
553 views

UK cities boundries in Ordnance survey

Are there any city boundaries of UK cities in the Ordnance Survey?
4
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2answers
195 views

Using a web map to identify and access data

I am trying to making a webpage where the user pans and zooms on a map, and based on the location and zoom level, some data is displayed on the webpage (drawn from another source). The data that will ...
4
votes
4answers
682 views

Need a location based social network data set

I'm looking for a data-set of Geosocial network consisting of Gps trajectories, chek-in,geotag contetnts and stuff like these available for research purposes. I'd really appreciate it if you can ...
4
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3answers
1k views

Global solar radiation data

I need a solar radiation data in central Asia. Is there any global dataset of solar radiation. If someone know about it, please send to me the link. thanks a lot
4
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1answer
119 views

How to convert a column of numeric IDs to letters?

I'm working with qgis 1.8.0. I divided a map into 500 features (small rectangles), and now I have the doubt if there is any way to change the ID of the attributes from numbers to letters? When I did ...
4
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2answers
264 views

Where can I find Ethiopian electoral constituency and district (woreda) boundaries data?

I am a PhD student in Development Studies in Oxford. I'm trying to find a map of the Ethiopian electoral boundaries. These are not the same as the district (woreda) boundaries - districts can be in ...
4
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1answer
466 views

Joining Census Data

I have collected census data for a county in Pennsylvania. Data varies from 1999-2010. For my data before 2010, a significant number of blocks do not match up (image below) when I join the data ...
4
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2answers
81 views

How can cities in a Metropolitan area share data collection costs?

Does anyone have any stories to tell (good or bad) about attempts to share the costs of data collection among cities/agencies in a metropolitan area? Aerial imagery is a primary example, but would ...
4
votes
1answer
72 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 ...
4
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1answer
328 views

Replace the data source for several layers in several mxds - from shapefiles to the ARCSDE data source [duplicate]

Possible Duplicate: Permanently replace/update SDE server + service in each SDE Layer in an MXD First let me say I have probably read every link regarding changing DATA Sources on the ...
4
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2answers
1k views

Cartogram on ArcGIS 10.1

I am new to ArcGIS. I would like to build a cartogram map both on ArcGIS 10.1 and Web GIS. I have a basemap and a set of raw data in excel. I wondered what are the steps to build up a cartogram map on ...
4
votes
1answer
675 views

Terraserver replacment - source for US Topo maps?

Now that Terraserver has been shut down (or at least that's how it appears), is there an alternative WMS server for US topo maps? Probably too much to hope to find one that provides vector layers ...
4
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2answers
241 views

Is there website with list of common QA/QC errors?

As I am working on reviewing my soils spatial data, and I am doing my QA/QC I placed a point layer to check for errors. I add the field column to mark the error and state the error. I recently ...