Questions about obtaining data.

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3
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5answers
2k views

Ways to load OS VectorMap data

Us lucky fellows in the UK have been able to access public geodata from Ordance Survey under an open licence since April this year. Some of the datasets, including VectorMap, are broken into 100 ...
2
votes
1answer
190 views

Finding and using data on population density files

I'm attempting to replicate this map for the state of Nevada in QGIS: source: http://www.bostonfed.org/commdev/c&b/2014/spring/map-distance-to-closest-snap-outlet.htm (A SNAP outlet is just a ...
2
votes
1answer
276 views

I need some more information on ASTER for time series analysis

See my previous post on ASTER I have a question about that I am not sure about. So, if I wanted to analyze 10 years or so, do I need to download each ASTER file for each year (e.g. 2003 ASTER, 2004 ...
2
votes
1answer
760 views

World map shapefile including disputed areas

I am looking for a global shapefile that allows you do show data for all disputed areas (like Waziristan, Spratlay Islands, Kahsmir, etc.). Do you have any idea where I can find a shapefile with not ...
8
votes
3answers
3k views

Where can I find free building height dataset for major cities around the world?

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 ...
5
votes
3answers
664 views

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

Based on a previous question, Can I download the entire NRCS SSURGO database?, it appears that it is difficult to import the entire USDA SSURGO database. The Web Soil Survey provides the ability to ...
5
votes
2answers
1k 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 ...
5
votes
3answers
241 views

Methods for lat/lon quality control?

I have a database with fields including latitude, longitude, city, state, and country. When mapped, it is clear that a number of the sites are in the wrong location - most commonly because of a sign ...
5
votes
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?
5
votes
2answers
2k views

Data organization strategies for .csv and .shp

I'm organizing a large amount of data for a project and the data is stored in .csv format, with a code to relate each row to a polygon in a .shp. I was planning on converting the .csv data into .dbf ...
4
votes
1answer
120 views

Determining size of grid cells created by vector grid tool of QGIS?

I am working with QGIS 1.8.0 and Im making a vector grid on a map. Does someone know how big are the squares if the grid settings look like in the picture?
4
votes
0answers
317 views

Touristic poi-data (api or dump) with popularity measure

I'm looking for freely available touristic (hotel, restaurants, bars, attractions, etc.) poi-data that have some measure of popularity. With popularity I mean, explicit popularity like on ...
4
votes
2answers
751 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
votes
1answer
868 views

UK cities boundries in Ordnance survey

Are there any city boundaries of UK cities in the Ordnance Survey?
3
votes
1answer
206 views

Where to get the modern Constellations as a vector File?

Does anyone know where I can get a vector version (shapefile/TAB) of the modern star constellations for the entire sky? Wikipedia has a SVG - ...
3
votes
2answers
107 views

All US 2010 Census Data - Tract Level

I'm trying to find where I can download all the data (summarized to the tract level). By all data, I mean population race Marital status job wage age sex same sex couples kids education I need ...
3
votes
1answer
235 views

Divide shapefile

I'm new working with QGIS 1.8.0 and wanted to know if its possible to subdivide a map (shapefile, which is round-like) into small squares but following the outer round contour of the map? I tried with ...
3
votes
5answers
1k views

When a raster is clipped to a polygon with Python, why does it still take on the extent of the entire shapefile?

I am clipping a raster image to each polygon row in a shapefile in ArcMap 9.3 using the Clip tool (Data Management) in Python with Clipping Geometry set. While the clipped raster successfully depicts ...
2
votes
1answer
198 views

How to read *.adf files into R?

I want to load .adf files into R. The data is from this page: http://www.fao.org/geonetwork/srv/en/metadata.show?id=14057 I tried the following code that I found after some research in the internet. ...
2
votes
0answers
98 views

Looking for high resolution land use (not land cover) data sets for world?

I am looking for high resolution land use data sets for the world. This question is NOT to be confused with an earlier question - Equivalent of CORINE land cover data sets for rest of world which ...
2
votes
2answers
141 views

QGIS - exercise data

I´m working currently through the QGIS training manual. However, the data for the spatial analysis exercise in chapter 9.4 ...
2
votes
0answers
54 views

How to maintain the data at XML document after changing schema with Diagramer?

After exporting XML with schema and data I did some changes to the schema with ArcGIS Diagramer. now i need to import the new schema and all the data to a new empty file GDB. what are the best ...
2
votes
1answer
1k views

How to pick the coefficient in Inverse Distance Weighted method?

I'm using QGIS 1.8.0 to interpolate weather data. This is, I have a weather station located in say, A and C. With the Inverted Distance Weighting or Triangular Interpolation methods, I can ...
2
votes
2answers
2k views

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 ...
2
votes
4answers
418 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 ...
2
votes
1answer
6k views

How to add points to a point vector layer - 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
1answer
2k 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
2answers
60 views

Where do I get Elevation Data for Scotland?

So I am new here and I arrived here because I have been searching for quality elevation data for the entire Scotland but I have not succeeded yet. Kindly help if you know where to get the data Raster ...
1
vote
2answers
63 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. Any help is greatly appreciated.
1
vote
1answer
275 views

Where to Dowload Village layers for India with census 2011 information?

Does anyone know where I could download a layer of all villages in India together with their populations (hopefully from the 2011 census)?
1
vote
1answer
155 views

How to Plot Every Other Address on Street?

I have no idea if this is even possible. We run a Utility software company and need to know where to put the leak sensors. The sensors are put at either every other house or every two houses depending ...
1
vote
2answers
162 views

World Land Cover data

I need to get land cover data for the entire world. I'm using corine land cover data for Europe: http://www.eea.europa.eu/data-and-maps/data/clc-2006-vector-data-version-2 but I have no idea how to ...
1
vote
2answers
186 views

Is it possible to change CRS without the .prj file?

I'm working with QGIS and trying to change the CRS of some maps. Is is possible to do it without the .prj file? Please let me know. Thanks.
1
vote
1answer
84 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 ...
1
vote
3answers
826 views

Where can I find shapefiles for New Zealand Cities and Suburbs/Neighbourhoods?

I'm trying to find some shapefiles (administrative boundaries) of New Zealand CITIES and SUBURBS/NEIGHBOURHOODS. I've found some boundaries for the Country, Regions, Districts (not useful for me) .. ...
1
vote
1answer
2k views

Looking for Ocean Dataset

This may seem like a very simple request, but does anyone have or know where I can get a shapefile of the ocean around the US? The only thing I can find within my ArcGIS BA is the ocean background, ...
1
vote
2answers
1k views

Where can I get UnitedStates.gdb file

I am doing this tutorial http://help.arcgis.com/en/sdk/10.0/arcobjects_net/conceptualhelp/index.html#/How_to_geocode_a_single_address/00010000038r000000/ but it requires the following file: ...
0
votes
2answers
67 views

How to create/obtain district data for Singapore?

I am newbie in GIS and have started using QGIS for my purpose. My purpose is to map all districts of Singapore and create a Shape file and get GeoJSON details for all districts. I am not able to find ...
0
votes
2answers
51 views

Polygons of countries including territorial waters

Where can I get polygons (multipolygons) of all countries of the world including the territorial waters of the countries? OpenStreetmap displays these areas but I can't find an extract of this ...
0
votes
1answer
45 views

GIS information on worldwide cases of wildfires?

I am developing some case studies on wildfire cases around the globe, some examples include California (2007), Australia (2009), Moscow (2010), Valparaiso in Chile (2014), and so on. I was wondering ...
0
votes
1answer
209 views

Why do I get these bands on my Height/Dem/Raster

I can't seem to get rid of them, and I've no idea (ok scrap that, I have a vauge idea) whats causing them. First an apology, yes this is quite a large pic apologies, but here goes: How to ...
0
votes
1answer
90 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 ...
0
votes
1answer
401 views

How do I from convert from street level address to block/block group/census track?

I just downloaded block-level census data, using this answer Where to get 2010 Census Block data? It output a spreadsheet with a bunch of rows of the format GEO.id | GEO.id2 | ...
0
votes
0answers
66 views

What reliable sources (paid or free) exist for fossil fuel infrastructure data?

I am trying to find GIS data for various types of petroleum and natural gas infrastructure (pipelines, refineries, gathering lines, pump stations, etc). I've found quite a few sources, mostly ...
0
votes
1answer
292 views

Is it Possible to Convert a GRD File into an ASC File in QGIS?

Is it possible to convert in QGIS a GRD file (that was created in MapInfo) into an ASC file (that can be imported into SAGA)? Is it possible to "extract by mask" a section of a GRD file in an other ...
-2
votes
2answers
358 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 ...