Questions about obtaining data.

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6
votes
1answer
2k views

Is there a way to add a PDF to ArcMap as data?

I receive a lot of PDF maps (vector, image, with georeference and without) and I am having to convert them to an image file before I can add them to ArcMap and georeference. I can't see any obvious ...
1
vote
1answer
73 views

Data safety in ArcGIS Server network

I want to know about the safety of data shared in an ArcGIS server network. Can someone hack into the network and steal the data? Suppose we create an ArcGIS web service and put up an application, can ...
11
votes
2answers
867 views

Is there a public shapefile with the London Underground stations and lines?

Is there a public shapefile containing the stations and lines of the London Underground? I've been doing some intensive searching but I can only find the coordinates of the stations, or the lines in ...
2
votes
1answer
93 views

What is No Data Value?

I'm looking at the transparency window of the layer properties of my "Heat map". How does the No Data Value effect a raster layer. I'm assuming an initial setting of -9999 sets it out of the way, so ...
1
vote
2answers
236 views

Sequoia 2000 Benchmark data?

In reading about DBSCAN clustering it mentions the SEQUOIA 2000 Benchmark database was used for benchmarking. Is this data set available anywhere? Or, is there another set like it? So far my ...
1
vote
0answers
146 views

Heat Map trouble: Is this a data formating problem?

I'm playing with the heat map plugin with QGIS. I've run through QGIS tutorial: http://docs.qgis.org/html/en/docs/user_manual/plugins/plugins_heatmap.html, using the airports data set as explained ...
7
votes
2answers
169 views

Where can I find Population data for all UK Counties?

Where can I find population data (male, female, total) for all UK counties for last 7 decades, i.e. 1950,1960,1970,1980,1990,2000,2010. I tried my luck with Office for National Statistics and UK ...
0
votes
1answer
118 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 ...
1
vote
0answers
21 views

Difference Between GLC2000 Versions

What are the differences between the various versions (1 through 5) of the Global Land Cover (GLC) 2000 product? I am going to use northern North America, Europe and Asia (north of 50°N). Is it ...
0
votes
0answers
75 views

Where can I get polygons for the Municipalities of Puerto Rico?

I'd like to find GeoJSON files to draw the polygons of municipalities of Puerto Rico. It might be nice get the Nokia Map (or any reasonable publicly available map) of the same regions and overlay ...
1
vote
1answer
65 views

New Install Quantum GIS - .ind and .idm files not valid [closed]

I downloaded and installed the Windows version of Quantum GIS to view Pinellas County data. I can add the .shp, .shx, and .dbf layers, however do not see any data showing as far as road names, etc. I ...
2
votes
2answers
200 views

Where can I find a dataset containing locations of all USPS post offices?

I searched the USPS web site, queried GeoData.gov, did a general Google search and turned up nothing. I tried querying GNIS for feature type post office, but the data is listed as "entered 1993" for ...
2
votes
1answer
306 views

McDonalds GIS data [duplicate]

Where I can find the GIS coordinates of all the McDonald's restaurants? Particularly those in New York City? Further I'd like to Voronoi tessellate the 5 boroughs with respect to these McDonald's ...
5
votes
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, ...
9
votes
2answers
185 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 ...
4
votes
1answer
329 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 ...
6
votes
3answers
516 views

Classifying point coordinates to countries or continents?

I have about 50 000 points (latitude and longitude), and I would like to find out in which country each of the points is located. It does not need to be super precise, though. (Or actually I only ...
4
votes
3answers
113 views

Where can I find decadal climate and ocean data for Europe?

I would like to find decadal climate and ocean data for Europe that I can download and use directly in ArcGIS. Specifically, I am looking for mean annual temperature, sea surface temperature, and ...
15
votes
6answers
649 views

Where can I get a world map with boundaries of regions and communities for commercial use?

I am looking for a vector file worldmap which should include as many boundaries reaching to a very small level (like ZIP-Codes/small communities/etc) as possible. The data of Natural Earth is quite ...
7
votes
5answers
692 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
0answers
91 views

Does anyone know of Electric Company Boundary Shape files that are out there for Free?

Ohio has a great website for their Electric Service Commission and I am looking for a shape file or data that would get me the service boundaries of electric companies for other states. EIA has data ...
5
votes
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 ...
2
votes
1answer
55 views

OSGB conversion error

So I am using ArcGIS 10 and trying to work in British National Grid. My shape file is in WGS84 UTM30N. By chance I passed the shape file across to a colleague and we both transformed into BNG. When ...
4
votes
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?
0
votes
0answers
32 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 ...
2
votes
2answers
2k views

Detailed Bathymetric/Bathymetry contour data (0-200M)

I am looking for free Bathymetric contour data in shapefile format for depths between 0-200 meters for North America. I prefer contours at 10 meter increments, but will take whatever I can get. I ...
2
votes
1answer
294 views

Question about sizes of input rasters for raster calculation

To calculate any formula (conditional statements/relational operation etc) in the raster calculator in ArcGIS using two different sources of raster images, I'd like to know input rasters must be the ...
1
vote
0answers
165 views

Describing weather data in ArcMap area solar radiation analysis

I am writing up the methodology of the analysis I did on solar radiation availability for a city. I used the tool 'area solar radiation' with ArcMap 10, using the time configuration ...
5
votes
3answers
1k views

Source for US parcel boundary data?

Where can I find shapefile (or other vector) data for US private parcel boundaries (such as for a plat map)?
4
votes
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 ...
8
votes
1answer
266 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 ...
4
votes
0answers
117 views

Advice on colour balancing a SPOT5 ArcGIS Mosaic Dataset

All, I'm working on a project using satellite imagery of a large braided river. I've been provide lots of SPOT5 images (that overlap). I've created a geodatabase, created a mosaic dataset, added the ...
6
votes
1answer
224 views

NYC Subway Line Station Order?

I've currently got data on the NYC subway stations (including name, position, and how many people entered and existed during a timeframe). Also, I have the data on which stations have which train ...
1
vote
1answer
243 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
178 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 ...
4
votes
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 ...
3
votes
1answer
149 views

How to create a multimodal network?

How to add waterways and railroads without turn restrictions into the previously created street network dataset with turn restrictions, in order to create a multimodal network? For a university ...
3
votes
1answer
154 views

Simplest way to share map and data with ArcGIS 10.x and 9.x users

What is the simplest way to share a map and data with both ArcGIS 10.0 and 9.3 users, portably? This question could be rephrased as "Instead of waiting for Esri to (maybe) implement backwards ...
2
votes
1answer
42 views

FEMA LOMA Data Availability?

Does anybody know where there might be some good/current FEMA data? I am interested specifically in the LOMA data for Florida. I have found a WMS Service that is hosted by FEMA but I'm having trouble ...
4
votes
2answers
265 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
votes
0answers
151 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 ...
16
votes
1answer
369 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
0answers
150 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 ...
3
votes
3answers
435 views

climatic data from MODIS or other sources

I'm looking for climatic information in the form of raster like MODIS daily LST (Land Surface Temperature) data. I'm looking for other parameters like precipitation, humidity, air pressure and so on. ...
3
votes
3answers
403 views

Where to get Land Use data for the UK?

We're currently looking for a Land Use dataset for part of England (UK) and were wondering what datasets are out there, either free or commercial. One's we've found so far: ...
2
votes
3answers
267 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
196 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 ...
7
votes
3answers
1k views

Where can I find latitude and longitude data for the borders of U.S. Congressional districts?

I'm interested in finding the most up-to-date latitude and longitude data for U.S. Congressional district borders. I'd prefer a human readable format (e.g. XML), but I'm writing my own code so I can ...
1
vote
1answer
255 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 ...
3
votes
1answer
673 views

Download Dataset From ArcGIS REST Service

Looking at this information page for a dataset hosted on esri.com: http://fema-services2.esri.com/arcgis/rest/services/2012_Sandy/ImageCat_NLT/MapServer/layers Trying to figure out how I can get ...