Questions about obtaining data.

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2
votes
1answer
44 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 ...
2
votes
6answers
3k views

Where can I find shapefiles of pipeline data?

Does anyone know where I can get or find shapefiles for pipelines (USA location)? Preferably free as I've never done pipelines before and I'm meeting a client next week that is doing pipeline work. ...
8
votes
2answers
324 views

Sources of geolocated Tweets

Are there any publicly available sources of geolocated Tweets? I'm aware that one can collect them on their own, but was wondering if there is something readily available to play with. There is a ...
6
votes
3answers
354 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, ...
1
vote
2answers
82 views

Looking for average temperature data for Afghanistan

Hey all I am looking for a average temperature data for Afghanistan monthly over a year, precipitation would work too. In a shapefile, if anyone has any or knows anywhere that I could access one ...
4
votes
1answer
536 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 ...
0
votes
0answers
70 views

Trouble with making shapefile from xls file

Using DIVA GIS, each time I attempt to import some species data from an xls file to be plotted onto a map, the program becomes very slow and eventually becomes unresponsive. My dataset originally ...
2
votes
0answers
138 views

How to populate ESRI GeoPortal programmatically?

I'm trying to find either some documentation or an example of how to manually populate the GeoPortal metadata datastore. I'm using a MySQL backend. Given a ISO XML file I can manually harvest it but ...
0
votes
0answers
35 views

consolidating of all the census data for the state of Florida from the below listed US Census website

I have a potential project to utilize census data within a GIS and the hard part appears to be the consolidating of all the census data for the state of Florida from the below listed US Census ...
4
votes
2answers
1k views

Dividing Earth into continent polygons

Is there a simple (low res is fine) polygonal data set that divides the entirety of Earth's surface into continents, with no overlap and no area excluded? Specifically: North America, South America, ...
0
votes
0answers
110 views

Where can I purchase Points of Interest? (USA)

I have thousands of POIs with addresses and they are geocoded. The lat longs are on the road. I have Tele Atlas POI data, but it also shows the locations closer to the road. Is there any ...
7
votes
3answers
682 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
776 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 ...
4
votes
1answer
226 views

Given a known batch of mobile-obtained gps data with timestamps, what algorithms can be used to clean it?

I'm working on the backend for an iOS/Android app that collects locations every hour and syncs with the server every three hours. The mobile apps themselves are not under my control and so I can't ...
17
votes
6answers
5k views

Near real-time sources of lightning strike data

I am wondering if anyone has any suggestions on sources of near real-time lightning strike data available for download? For example, Intellicast.com has a map of strikes, but makes no mention of the ...
1
vote
0answers
138 views

Data source for 3D buildings (germany)

I'm searching for a data base or webservice, that provides buildings at a level of detail (LOD) of cuboid (length,width,height) or roof, corners, etc or better. The area should cover germany. ...
2
votes
2answers
2k views

US unemployment data by zip (or aggregating data up to county level)

I am trying to find unemployment rate data for the US that is: at 5 digit zip code level monthly, or quarterly, or even annually, for 2008-2012 free That seems to be impossible as far as I can ...
1
vote
2answers
638 views

OCM Landscape data

What is the source of the OCM Landscape data and where can one obtain it? Let me know if I should be speaking with someone else. Thank you,
3
votes
2answers
59 views

Where to look for oceanographical/environmental data for the Arctic (Baffin Bay/Davis Strait area)

I am looking for oceanographical/environmental variables that are available for Baffin Bay/Davis Strait area over the time period of 1995-2011, however, I am not familiar with ...
5
votes
3answers
1k views

OpenStreetMap Neighborhood Boundaries

Is it possible to download neighborhood boundaries from OpenStreetMap? I see on maps that they often indicate neighborhood names; is there a way to retrieve their coordinates and boundary polygon ...
0
votes
0answers
91 views

Technical questions about GIS

Got a question about some GIS. I'm doing an investigation about the GIS that are used in my country. For doing this, I divided my questions into functional and technical questions. For the technical ...
12
votes
1answer
268 views

How do you organize your geodata?

A geodatabase doesn't provide much flexibility in organizing your data hierarchically. All feature sets live either at the top level of the database, or one level down in feature datasets. A feature ...
5
votes
2answers
362 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 ...
4
votes
4answers
769 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 ...
2
votes
3answers
160 views

Agricultural field boundaries in a small area of south west England - source of vector data?

I would like to find a vector polygon dataset that shows field boundaries, along with tracks, roads, paths etc, for a small area of south west England - about 5km by 5km. Are there any free datasets ...
1
vote
0answers
391 views

Importing GPS coordinates correctly

I am importing a gsx set of waypoints with lat/lon taken in degrees, minutes, and thousandths of a minute. When they are added to my project, the waypoints are not showing up correctly - the ...
3
votes
2answers
155 views

Is there any site which provide classified image download for soil,vegetation or water resources?

(its particularly for indian states,i need.....,but kindly quote if any other info you have) the raster data may also work for me in above aspects.
13
votes
8answers
614 views

List of US government free GIS data online

The US government publishes a plethora of useful, high-quality GIS data sources online. The data includes: Municipal and international boundaries Classified points of interest Geographic maps ...
5
votes
4answers
1k views

Definitive source for downloading DEM data

USGS has been moving towards serving data through The National Map Viewer. They have several WMServices through their website that serve elevation data to the public (hillshade & DEM). The ...
1
vote
0answers
1k 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, ...
2
votes
0answers
132 views

How does integrate work with point data sets?

I'm trying to combine point data into clusters and I think I've come up with a method that will work for what I want to accomplish. However, I don't understand why it works the way it does and I'm ...
-2
votes
2answers
333 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 ...
4
votes
2answers
384 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 ...
2
votes
0answers
738 views

How to load data programmatically from shapefile into feature class (geodatabase)? [closed]

Can some Genuis here help me programmatically (using python and comtypes) load shapefile data in to an existing geodatabase (feature class). The attributes of the shapefile has to match with the ...
0
votes
0answers
26 views

How to get 2010 Census Block Housing Unit Data for the entire US for 15-digit FIPS blocks [duplicate]

Possible Duplicate: Where can I find the finest granularity of 2010 US census population information? I'm working on a little data munging project and I need to find 2010 US Census data for ...
1
vote
1answer
98 views

Anyone know where I can find a file like this for Pakistan?

Can anyone tell me where I can find a file like this on Pakistan? I found it on ochaonline.un.org I cannot find it when I search on there. ...
7
votes
1answer
527 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 ...
2
votes
3answers
508 views

Looking for high resolution (1m or better) aerials for Turkey

Would prefer free but under a couple hundred dollars is also doable. It would be nice to have actual tif, sid, etc. files but a WMS would also work... using ArcGIS 10 Would also consider any of the ...
3
votes
1answer
107 views

Help obtaining nodata information for ASTER datasets

Is there any way to determine what the nodata value should be, in a set of geotiff images that do not have the 42113 tiff tag ? I am trying to get elevation information, programatically in c++, and I ...
5
votes
3answers
296 views

Does anyone have data or shapefiles for tidal flats, mangrove distribution, or salt marshes?

I am looking to map out the salt marshes, mangroves, and tidal flats of the world, but I am having difficulty finding data for this. Does anyone have any such data? This is for a research project at ...
4
votes
1answer
461 views

How to create tiles with points from MongoDB?

I have a (potentially) large data set stored in MongoDB. Each record is just lat, lon and some float-point value. Each pair of lat and lon is unique, but the whole set is not covering the Earth, there ...
0
votes
0answers
268 views

Power line and/or power station vector (shapefile) data in Turkey

Looking for transmission power line / power station vector (shapefile) data in the country of Turkey. KML/KMZ files would also work. Found great vector data here yesterday for roads, rivers, etc: ...
1
vote
1answer
2k views

Looking for vector data for the country Turkey

specifically roads, railroads, and rivers shape files.... no cost would be nice, but it needs to be more detailed and accurate than mapcruzin's free data. Something under $500 would also be ...
3
votes
3answers
779 views

Where can I find the finest granularity of 2010 US census population information?

I am writing a re-districting application where I want to be able to create US voting districts based on geographic coordinate population data. In a perfect world, I would have the population for each ...
4
votes
1answer
745 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 ...
9
votes
5answers
1k views

Where can I get neighborhood boundaries?

Besides Zillow's creative-commons licensed neighborhood boundaries shapefiles, what sources of neighborhood boundaries are there? Not just in the US, but all over the world. Free/open source is ...
5
votes
3answers
353 views

In what data format should I export a (lat,long,alt) or (x,y,z) grid to be compatible with the largest number of GIS software?

I am new to GIS and developing an application that generates a 3D grid with (latitude, longitude, elevation) or (x, y, z) metric triplets, and I would like to add an exporting feature that ensures ...
1
vote
0answers
157 views

IFSAR bad stripping in some spotting areas [closed]

I have a co-worker that was working on do some analysis on IFSAR and he clips them to quads. He said that there are 6 quads that came up bad stripping. Is there a way around to clean it up the bad ...
1
vote
1answer
2k views

Exporting .jpg files from data driven pages in Arcmap

I have generated about 90 maps through data driven pages(ArcGIS 10.0). I now want to export them as .jpg files in either landscape or portrait format. I tried python but it is not working, it worked ...
6
votes
4answers
737 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