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9
votes
2answers
393 views

Tools to compare unversioned copies of geospatial data

My office has about 100 GB of geospatial data of varying forms (imagery, feature classes in geodatabases, LIDAR, tables, etc) that have gone somewhat unmanaged for the decade during which they were ...
1
vote
0answers
3k views

download and installation of sample data [closed]

I have downloaded the sampe dataset under "my documents". When I extract the contents of the zip file, the only folders that are actually installed, are "gml", "gps" and "shapefiles". Thus, ...
8
votes
5answers
2k views

Where can I find annual temperature data for every city and town in the US and Australia?

Where can I find yearly annual averaged temperature data for every city and town in the US and Australia for a heatmap? links are good
0
votes
3answers
270 views

Where can I download public data set, especially shape file? [closed]

The places I know include: http://www.weogeo.com/ http://geocommons.com/ http://koordinates.com/ Any other suggestions?
5
votes
1answer
106 views

How is the legal situation for edited maps?

I am currently working on a commercial GIS project and have a lot of uncertainties regarding legal situations and terms of use for different maps. For example, the data of eurostat does not allow a ...
8
votes
2answers
482 views

How do you treat partial 3d features in PostGIS?

We have features from survey data that contain partial 3d information. The most common example would be a 2D LineString representing a road, that contains elevation information in certain points ...
1
vote
2answers
5k views

Is there an open source international GeoCoding database if you only need city level resolution?

I'm writing an application that needs to plot a user's location on the map, and the user could be anywhere in the world, but I only need city/town level resolution, not street address. Is there a ...
6
votes
3answers
7k 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 ...
5
votes
2answers
340 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 ...
3
votes
1answer
475 views

SQL Server data modelling + spatial data = what book? [closed]

What recommended book can you provide about data modelling for geographical spatial data (geometry) in SQL server?
0
votes
0answers
33 views

RARE II Roadless Data

I am looking for data showing RARE II Roadless Areas on USFS Lands. RARE II was an early inventory of Roadless areas that was completed in the late 70s. This dataset is different than areas that are ...
10
votes
1answer
520 views

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 ...
1
vote
1answer
803 views

Real time GPS data sources [duplicate]

Possible Duplicate: Sources of realtime spatial data Wondering if there are any free real time GPS feeds available for consumption. I am preparing a presentation about GIS and I thought a ...
6
votes
1answer
293 views

Fast data representation on the vector layers

I have found an interesting article about how HTML5 supports representation on large datasets. Article can be found here. In the article it is said that HTML5 and feature simplification can ...
16
votes
1answer
787 views

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 ...
3
votes
3answers
122 views

Where can I find high resolution data on residential land use?

I am currently searching for high resolution data on residential or commercial land use in the USA. I'd like to use this data to determine for a given location wether this location is in a house with ...
3
votes
0answers
243 views

How to merge SeaWiFS and MODIS data or use other merged products?

I hope to produce a time-series for sea surface temperature (SST) and chlorophyll-a (Chl-a) for use in MaxEnt without the use of arcgis, preferring Python tools to others. I am new to satellite data ...
7
votes
3answers
716 views

What format to use for highly compressed vector data?

Does anyone have information about possible formats for highly compressed vector data? Some basic requirements. Must be possible to read using the larger commercially available platforms. (ArcGIS, ...
3
votes
1answer
437 views

Looking for Mid-Holocene (~6000 BP) bioclim dataset

I am trying to obtain climate data for the Mid-Holocene (~6000 BP), preferably in the bioclim (19 bioclimatic variables) raster format. The worldclim.org website lists this dataset based on the CCSM ...
-2
votes
2answers
394 views

What are non-commercial sources of road network other than OSM

I want to get the graph (Road Network) of Area of interest: Lon/Lat - Left/Bottom = -93.28587,44.9674 and Right/Top=-93.25351,44.9855 Minneapolis, MN Searching for a non-commercial source - aside ...
2
votes
3answers
482 views

How can I get a road network to run a simulation on?

I'm new to GIS and I'm asking this a bit out of desperation, but I'm trying my best not to get overwhelmed. :) I want to download a file that contains data of a road network (of what road network is ...
11
votes
3answers
239 views

Know of a source of historical 24-hour rainfall totals for US locations?

I'm looking to get historical information on the magnitude of rainfall events for a given location (Boston, Massachusetts USA). For example, to create a histogram of rainfall events by precipitation ...
1
vote
1answer
580 views

Google maps api, several moving markers using a csv file containing the coordinates

I collected 5 sets of coordinates of moving vehicles and I want to play the scene using googlemaps API showing those 5 vehicles moving. The sets are saved in a postgresql table. is it possible ? if ...
7
votes
1answer
2k views

Where can I find a Unesco World Heritage List as boundaries?

I was wondering if anyone knows where to find the UNESCO world heritage list with boundaries? I can extract point data from the json feed for the map on the website http://whc.unesco.org/en/list via ...
8
votes
4answers
2k views

Where can I download free satellite imagery of Cambodia for offline use?

I am an entry level GIS user - I have had one semester of GIS in college. I have successfully downloaded raster satellite imagery from Seamless (tiff files) for my class project. Now I am trying to ...
5
votes
2answers
1k views

Is there a free source of U.S. time zone borders?

I have a mapping app in which I need to display the borders between U.S. time zones. The easiest and most accurate way would be to feed in a list of lat/long coordinates representing the vertices of ...
1
vote
2answers
2k views

One Polygon Joining to Database with Many matching records

Using ArcMap 10.1. Is this possible to have one polygon and join to a database/excel with many matching records? I would like to have 1 polygon but match to 100 corresponding records in a table. When ...
7
votes
4answers
728 views

What are some alternative sources for USGS data?

I've been using the USGS National Map viewer (http://viewer.nationalmap.gov/viewer/) for getting data for QGIS, but the download system is driving me insane. I enter my email address and [sometimes] ...
1
vote
2answers
4k views

How to save project with data source path as relative in QGIS?

Is their an option in QGIS to save the project with the data source being relative path. I Dont see the option here.QGIS Wroclaw1.7.3
4
votes
2answers
3k views

German coordinate system from Lat/Long

I have WGS latitude and longitude for data points near Munich and I'd like to use a grid-type coordinate system, like the Ordnance Survey grids in Ireland or the UK. What coordinate system do you ...
2
votes
1answer
58 views

FIPS code data combination

I have two datasets- matching years, different sources. They are matchable by FIPS code, but my problem is 1) that the first data set, from which I am drawing my independent variable data, only has ...
4
votes
2answers
2k 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 ...
0
votes
1answer
182 views

How do I change the scale of one map sheet within a map series in MPS Atlas

I am using MPS Atlas and have a large map series (almost 300 map sheets) with the Areas Of Interest defined by the polygons of a feature class with a 100 m buffer on each polygon. This works well for ...
6
votes
3answers
7k views

Spatial data? Geodata? Geographic Data? Geospatial data?

Language changes all the time and I see various uses of the words defining the data we use in GIS in our day-to-day lives. But what's right? Is there a right answer out there that we would all agree ...
10
votes
3answers
1k views

How is raw OSM data processed for openstreetmap.org

Can anyone provide insight into how OSM data is processed or rendered for www.openstreetmap.org? A specific example... I extracted data from a recent planet.osm PostGIS dataset for an area in ...
3
votes
2answers
89 views

Where can I find spatial data on polar fish populations?

Where can I find spatial data on polar fish populations? I am looking specifically for polar cod, but any fish will do at this point in my project. I also need arctic ocean salinity, temperature, and ...
6
votes
3answers
4k views

How can I transfer data from one PostGIS database to another?

I have quite a bit of GIS data in a old PostGIS Database (version "1.1.6") and I need to transfer it to another PostGIS Database ("POSTGIS="1.5.3"). I tried creating a backup and restoring that on ...
3
votes
1answer
599 views

Looking for GIS Data for Curitiba, Brazil?

I am wondering if anyone knows where to find building footprints, road network, transit, or environment feature data for Curitiba, Brazil. Thanks
4
votes
2answers
2k 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
votes
3answers
2k 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 ...
2
votes
4answers
487 views

Where can I get free New Zealand and Melbourne geodata?

I have just installed QGIS. Do any forum users know where I could download or access files and maps for 1) New Zealand, and/or 2) Melbourne/Victoria, Australia. Preferably it would be good to know ...
12
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.
6
votes
1answer
933 views

Planetary-scale computing architectures for electronic trading: where is the data?

In his intriguing TED Talk, How algorithms shape our world, Kevin Slavin shows this map from "Planetary-scale computing architectures for electronic trading" ... does anyone know if this data is ...
3
votes
2answers
341 views

Why can't I see all records in my personal GDB in QGIS?

I am running QGIS 1.8. I have a layer from an ESRI Personal GDB. There are 431 features in the layer. When you load the layer into QGIS, and look at the Metadata properties, it shows the number of ...
6
votes
1answer
1k views

Where can I find European City boundary data?

Does anyone know any sources for free European city boundary data? Thanks!
0
votes
0answers
26 views

Desktop tool to batch convert Shapefils to CSV with polygon outline coordinates [duplicate]

Possible Duplicate: How to convert .shp to .csv including attributes AND geometry? Is there a desktop tool that would allow me to take dozens of large (300MB) shapefiles and convert them ...
6
votes
3answers
1k views

where do I download POIs from Wikipedia? placeopedia used to have them but is now gone

I am trying to improve OpenStreetMap in Siem Reap, Cambodia. A way I am doing this is to add temple locations. I hear that there is a dataset of temple locations available from Wikipedia (presumably ...
7
votes
4answers
1k 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?
2
votes
1answer
47 views

How to access existing graphs in arcGIS 10

I am trying to access an existing graph in arcGIS version 10. The student workbook I am using was written for version 9.3. Version 10 does not have "tools" option in the toolbar. The instructions ...
1
vote
2answers
311 views

Where can i find oceanic borders defined as a set of lat/long points?

I'm trying to write some code that, given a latitude and longitude, will report which ocean (if any) this point is in. Is there a public resource available that defines the borders of the oceans as a ...