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5
votes
2answers
272 views

Worldwide population density data not grouped by country?

Are there any data sources available, preferably freely (but not necessarily), which show population density without regard to country or constituency boundaries of any sort? I'd like to analyze a ...
1
vote
0answers
46 views

Level of data available on FactFinder

I am trying to find data at the block level or even block group level for the SF1 files and ACS 2010 or 2009. Just recently, two months ago, I was able to get this data but for some reason I am now ...
6
votes
1answer
1k views

Breakline detection algorithms for LIDAR dataset

I'm searching for algorithms or open source tools I could use to detect breaklines from a LIDAR dataset; more specifically, from the terrain points of the dataset. At the moment the only thing I've ...
10
votes
3answers
8k views

Online map with rivers

Is there any internet map source (zoomable, tiled, i.e. "google like") with good display of rivers? I.e. well labelled even on larger scales? So that I'm for example able to track Donau river (with ...
1
vote
1answer
1k views

How to get 2010 Census Block Data on Race and Age?

I'm interested in observing racial segregation in public & charter elementary schools in San Diego city (not county). I believe the best way to analyze this would be at the block level and have ...
3
votes
2answers
2k views

Problem loading table in ArcMap

I am an ArcGis 10. ( ArcEditor licence) user and I have a problem when trying to load data with the Load Objects Tool in ArcMap. I want to load a table, but after I choose the input data (equipment....
5
votes
2answers
2k views

Shapefiles for U.S. Area Codes (NANP)

I have a bunch of telephone numbers (just the area codes), and I'd like to geolocate them and make a map, but I haven't had too much luck googling for shapefiles for Area Codes. Surely these are in ...
2
votes
1answer
366 views

Free land use data for Manhattan

Does anyone know where I can get free land use data for Manhattan? I'm specifically looking for fraction of residential, commercial and other landuse data for each census tract for the New York County....
1
vote
0answers
111 views

How to maintain schema when copying feature from layer 1 to layer 2, where both layers have same schema?

If I load two unique layers, wherein each layer contains unique data, but both layers share the exact same schema, why is it when I copy a feature from layer 1, and paste it into layer 2, the ...
3
votes
2answers
11k 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 ...
2
votes
2answers
66 views

What does this file name imply?

I want to download an appropriate aerial image. Since they are huge, disk-space consuming, and time-consuming to download, I want to zero in on the right one. The directory lists images for my area (...
7
votes
4answers
4k views

How to extract german restaurants from planet.osm?

Want to get the data out of http://wiki.openstreetmap.org/wiki/Planet.osm UPDATE: i just come back from the site http://wiki.openstreetmap.org/wiki/Planet.osm which has got some files that belong to ...
2
votes
1answer
450 views

Enrich a dataset of POIs with OpenStreetMap

I have a list of POIs, some with a full description and some with only a few data entries, like the following: 6.9441000 50.9242000 [50677] (Ital) Casa di Biase [Köln] 6.9373600 50.9291800 [...
1
vote
2answers
158 views

Looking for R-compatible geospatial datasets

I try to work with geospatial data of North America. Is there any high-resolution map material available for/in R?
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 ...
2
votes
3answers
1k views

Where can I find the highest resolution shapefiles for counties or states

I am looking for a download source which has the highest resolution (greatest detail/accuracy) for all counties in the US. More specifically I run into this problem mainly when dealing with the ...
1
vote
0answers
64 views

Process to load elevation data into Oracle 11G

We have the National Elevation data set from USGS and considering loading it into Oracle (11G) database. Can someone help with the process/steps?
1
vote
0answers
249 views

Street block and Census Block

Study Area: Manhattan Software: ArcGIS 10.0 I'm measuring the street density using Street Network Grain size measure = Number of Street blocks per square mile. I have the NY street network but I do ...
2
votes
1answer
362 views

where I can find the shapefiles for the ecoregion map of the US?

I want to find a shapefile for the map at the bottom of http://www.epa.gov/wed/pages/ecoregions/level_iii_iv.htm I would want to create a map showing some data for the 10 forest ecoregions. Thanks.
10
votes
6answers
9k views

Looking for a World Airport Database

I'm looking for a database that contains all (most, many...as many as it can) world airports. I know of one such set available - http://www.world-airport-database.com/database.php - but the terms ...
2
votes
1answer
334 views

Sources for California roads data

I need a California roads network suitable for building a network dataset and routing to 120 locations. It needs to at least cover the Northern half of California. 2010 Census roads need alot of ...
1
vote
1answer
2k views

Looking for soil shapefiles for India

Is there any place where we can get soil Shapefiles of India (if not detailed information, can we get region wise/state wise)? I have seen this data base for few regions like USA. To compute "Q" in ...
4
votes
2answers
3k views

Where can I download a free dataset containing major ports across the world?

I am working on an analysis and would like to incorporate major maritime ports from across the world. Some initial searching turned up a dataset produced by General Dynamics, however it will be ...
1
vote
1answer
2k views

ARCPAD - VBscript to update values in attribute table

I am working on an automating tool for ArcPad for inventory issues on our mobile GIS machine (Trimble GeoXH - Geoexplorer 2008 series - Windows mobile 6.1 and Arcdap 10.0.3). I have developed the ...
13
votes
10answers
30k views

Is there a comprehensive list of latitude and longitude values for cities around the 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 ...
1
vote
1answer
3k views

Composite NDVI data downloads post-2006

Does anyone know of sources for downloadable global composite NDVI datasets (2-week to 1 month composites) that include more recent data than 2006? The GLCF (http://glcf.umiacs.umd.edu/data/gimms/) ...
3
votes
1answer
6k views

Free data with good accuracy of Europe and Mediterranean

I'm searching for free data like Europe's coastline and Mediterranean island's names etc. but with good precision. I found some shp file from this site http://www.naturalearthdata.com/downloads/ but ...
2
votes
3answers
5k views

Databases of bars, pubs and restaurants in United States and Canada?

I am mostly seeking Bars and Pubs but Restaurants are a very nice bonus. I need a database with zipcode, city, state, longitude, latitude, establishment name, establishment contact information, maybe ...
3
votes
1answer
442 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 ...
4
votes
1answer
2k views

Why is ArcGIS crashing when I try to load .adf raster data?

I am pretty new to GIS, so forgive me if this is a stupid question. I downloaded a bunch of land cover files from USGS seamless warehouse of Florida. Every time I try to 1) view the .adf file (which ...
2
votes
2answers
413 views

How to get power lines and substations data for Mexico

Hello guys. I am looking for an electric lines shapefile for Mexico and other Central and South American countries. Do you have any idea where I can get this data?? Thanks, Gracias, Salamat, Asante ...
4
votes
2answers
1k 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 ...
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
5
votes
1answer
2k views

Free dataset of world cities, including city geometry

I am looking for a free dataset of world cities. I checked all the datasets suggested in the question : Is a Country/State/City Database available?, but couldn't find one where the city location is ...
6
votes
2answers
580 views

Looking for a live feed of tides in Australia

I'm looking for a feed of predicted tide heights and times, specifically for NSW, Australia. Tide sites such as the Bureau of Meteorology only provide static images of predicted tide height. NSW ...
5
votes
2answers
231 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 anywhere....
1
vote
1answer
633 views

Administrative level and coordinates from Yahoo GeoPlanet WOEID

The Yahoo GeoPlanet data can be freely downloaded from: http://developer.yahoo.com/geo/geoplanet/data/. If I understand it correctly, each WOEID corresponds to a unique location on earth, with ...
3
votes
3answers
2k views

Where can I find Road shapefile/e00/etc for the entire world?

I am hoping that there is a single source for this data, ie. 1 geodatabase. If not, can someone point me towards the sources that would make up the entire world's road transportation network? I have ...
1
vote
3answers
506 views

ways to access and download the metadata of OpenStreetMaps

Does anyone know if there are any good methods or apps to access and download the metadata of OSM from desktop? Many thanks!
3
votes
3answers
636 views

Is there a sample ArcGIS Server service for US zip codes?

Esri provide a sample ArcGIS Server instance which contains states, block groups, etc. Is there a similar publicly-accessible ArcGIS Server instance anywhere which contains US zip codes?
0
votes
2answers
5k views

Source for countries/country codes for the entire world?

Is there any Google API which would return all the countries in the world with the country code?
0
votes
3answers
225 views

Looking for large GML files containing vector polygon data

I have few vector data files with 500 to 700 MB GML files. But I am looking for files larger than these preferably 1 GB, 2 GB. It would be helpful if somebody can provide some pointers regarding the ...
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 ...
4
votes
4answers
242 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 ...
0
votes
1answer
188 views

Getting city GIS data

I need some help on how to go about it. I do not have much knowledge about GIS. For a project we need a complete set of city data to perform calculations on. In terms of generating a map of the city,...
3
votes
0answers
106 views

Determine the Degree of Data Lossiness when Converting Data

I'm working through some of the ESRI tutorials on Data Interoperability and it briefly mentions the issue of data conversion being a lossy process. Some questions that come to mind are: What is ...
9
votes
5answers
2k views

Looking for USDA plant hardiness zone shape file

given that this is a USDA resource I really thought that it would be available online somewhere, but for the life of me I cannot find a shape file for the USDA plant hardiness zones anywhere. anyone ...
1
vote
2answers
336 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 ...
3
votes
1answer
344 views

Where are the raw data sources for all these maps?

Pretty straightforward question here. At an increasing rate I see crowd sourcing data being mapped to great effect. Where are the raw data sources for all these maps? I know they vary but I don't ...
9
votes
5answers
13k views

Source for GeoJSON data for the US

Does anyone know of any good sources for US data (counties, congressional districts, etc) in GeoJSON format? Has anyone converted public-domain shapefiles/sources to GeoJSON that they would be willing ...