Questions about obtaining data.

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21
votes
4answers
8k views

Most Up-To-Date Source for US Zip Code Boundaries

I was just wondering what the most up-to-date source for US Zip Code boundaries would be. My first thought was TIGER, whenever that comes out, but then I thought that the Postal Service might be a ...
0
votes
2answers
152 views

Cannot register a Feature dataset

I am having an issue trying to register a dataset, and being able to edit a featureclass within it. I am new to SDE so please bear with my explanation. I read online you cannot register a feature ...
0
votes
2answers
38 views

Looking for lat/lon for county seats

I'm currently designing a map for methamphetamine labs in my state. Ideally what I need is the center lat/lon coordinates for each county in my state or the lat/lon coordinates for each county seat. ...
0
votes
0answers
27 views

world city database (with lon,lat) & population per year

I'm building a visualisation with cities population around the globe for a website, found the MaxMind free database that includes most cities around the globe with coordinates and population, which is ...
6
votes
2answers
2k views

Where can I find municipal-level administrative boundary data for India?

Does anyone know how to find a shapefile with boundaries of Indian municipalities? I have tehsil boundaries as for year 2001, but I would like boundaries of municipalities. Ideally, also historic ...
9
votes
10answers
2k views

Need a Benchmark GPS Trajectory data-set? Anyone?

I'm looking for a benchmark GPS data set, available for research purposes for free. I've found GeoLife GPS Trajectories dataset from Microsoft Research but I find it a little incomplete. What I need ...
0
votes
1answer
98 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
0answers
24 views

What are open data sources about current sea state?

I wonder where (links/APIs) can be obtained data that is related to current (alike realtime - no past) sea state data (worldwide, but regional is good two, salt\waves length etc)? I am only ...
0
votes
0answers
19 views

Dataset required with GPS and accelerometer data

Can anyone please suggest me site or provide me a dataset which has GPS data with accelerometer data as well.I am doing a project where using accelerometer data i am trying to improve the accuracy of ...
1
vote
1answer
41 views

Population by Census Tract

I am looking to obtain count of population by census tract. The ideal output would be Census Tract 1919.01 Population = 7,435. Does anyone know of resources where I can get this information. I tried ...
0
votes
2answers
57 views

Summarizing data on ArcGIS 10.1

I am relatively new to GIS and am facing some difficulties trying to summarize/pool data together. I've attached the file to make it easier. FID_pc11_1 (Refers to postcode identifier) and count refers ...
6
votes
4answers
741 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
0
votes
1answer
24 views

Commercial Admin Levels

I'm looking to find commercially available admin boundaries (0 through lowest available) for the world that I can place into a user-friendly interface that allows the non-technical user (ie someone ...
2
votes
2answers
157 views

Japan Data: Postcode/Census

Hi I'm primarily looking for a GIS data source for postal codes in Japan as well as census data for different scales of geography. Has anyone found a good source of these data sets that is in ...
2
votes
0answers
27 views

XY line tool will not execute [duplicate]

I wish to generate a road with approximately 1090 XY coordinates, my only problem is that my XY To Line tool will not execute, i get this message Error 999999: error executing function. ...
0
votes
1answer
107 views

Targeting capital cities only in Tilemill/CartoCSS

At a specific zoom level in my Tilemill map, I want to only show capital cities, and hide all other cities. What data set could I use which will provide me with information oh whether a city is a ...
6
votes
2answers
1k views

Building cartograms using Web GIS?

I would like to build a cartogram map using 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 using Web GIS? Note: Originally ...
0
votes
0answers
41 views

Extracting rooftops using MATLAB

I am using Matlab to extract rooftops of buildings and I want an orthoimage i.e. a .jpg file, a world file .jgw and a shape file .shp as input. A mask is needed to "hide" the pixels of the image ...
0
votes
1answer
95 views

Is it possible to get the positions of all the stoplights for a given area?

I would like to know if there is a database of longitude and latitude values that locate all stoplights for a given area in the US like a city or a state? How would one go about obtaining this info? ...
16
votes
6answers
9k views

Where to get 2010 Census Block data?

This might be a stupid question but I would like to download 2010 Census Block Data for several towns and I can't seem to find it on American Factfinder. Is it there? And if not, does anyone know ...
0
votes
1answer
31 views

How to automatically fill a lat/long in attribute table

I´m not experienced in using QGis. I need to plot the distribution os a plant species on a map. I have created a shapefile for the species plots (name of file is PLANT). The coordinate system of this ...
1
vote
1answer
51 views

ArcGIS: Assigning values to missing attribute data for line layers

I have a large road network layer with an AGE attribute associated per segment. In some occasions, I would have segments A -> B -> C with segment B with no value for the AGE field. In other ...
1
vote
1answer
43 views

Downloadable historical traffic data?

I'm looking for historical traffic data on a decently large city. Specifically I need data points that can be used to infer the distribution of vehicle speeds across each road, but I don't want the ...
1
vote
0answers
20 views

Weekly raster data for temperature and precipitation in US

I am looking for weekly raster data for US for temperature and precipitation. All the major datasets PRISM, WorldClim etc. are either on a monthly scale or daily scale. I was wondering if anyone has ...
1
vote
1answer
53 views

Is it possible to incrementally update added/edited datasets to ArcGIS Online?

My organization would like to run change detection and update our ArcGIS Online data incrementally. Rather than re-uploading the entire data set every time we want to update the map. We are a city ...
4
votes
2answers
67 views

Download MODIS data for Mexico

I would like to download MODIS npp images for Mexico but I cannot figure out which files correspond to the country. How can I associate each tile to its location without looking at the million of ...
1
vote
1answer
24 views

How to derive Z-score values for a given field

I have a shapefile with an attribute field with a range of numerical values. I would like to derive z-score values for this field within ArcGIS. Any tips?
0
votes
1answer
32 views

Best data for demonstrating world poverty on Mollweide projection

I am overwhelmingly failing at finding data about global poverty that is any more specific than at the country level. Because poverty has such a wide definition I am open to really anything that is an ...
9
votes
3answers
414 views

PostGIS (2.0?) - Native Versioning of the Datastore

I recently have been surprised to see there are not too many solutions at all discussing the best methods of versioning datastores which are made available for editing. I am looking for a robust, ...
0
votes
2answers
36 views

Where is it Possible to Find DTED0 Set?

As I understand, DTED0 should be available for free. Yet, I am not able to find any download link. Everything that Google search brings up (eg. http://geoengine.nima.mil) is dead and not working.
0
votes
1answer
16 views

downloading data from UNdata onto ArcGIS 10.1

http://data.un.org/Search.aspx?q=population I am trying to download data from UNdata and successfully opened one link of raster data, however the data that I really desire won't open on Arc. I hit ...
0
votes
1answer
33 views

Obtaining DTED1 or 2?

I've been looking around the internet and I can find freely available DTED0, but I am struggling to find databases for DTED1 or 2, even to purchase. Can anyone point me at a place that sells these ...
4
votes
7answers
2k views

What is the best way to change a data type in the ArcGIS attribute table?

What is the easiest way to change the data type in an attribute table in ArcGIS for multiple fields? Say if the fields have been exported as a string from Excel and I would like to use them as ...
3
votes
3answers
840 views

How to transfer data from spreadsheet into shapefile?

I am looking at Deprivation in the UK and there is some good data in the form of spreadsheets on this website http://www.communities.gov.uk/publications/corporate/statistics/indices2010 I would like ...
1
vote
3answers
55 views

Is there an OSM High Level Dataset (pbf) available?

I'm currently trying to setup an offline Nominatim geocoder VM and I only need to have access high level data (countries, states and cities). Is there an OSM high level dataset (.pdf package) ...
5
votes
2answers
94 views

Alternative to Spatial Query on large data

I have around 110000 points data spread around the world. the shapefile size is 116 Mb. I want to select points which are inside asia. I have been using qgis but this time qgis is not being able to ...
0
votes
1answer
52 views

Where to find geojson for uk?

I want to get the GeoJson for UK.The regions which i require are in the map displayed on clicking the below link. http://www.apho.org.uk/resource/view.aspx?RID=50213 I have been searching the net but ...
2
votes
2answers
3k 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
5answers
175 views

Where can I get high-resolution (at least 1 foot) imagery of California?

Is there a national site or state site that will allow me to download High Res (1') aerial imagery of California? I have tried Cal-Atlas Download but they are at one meter. I have also tried USGS ...
0
votes
0answers
17 views

Error while importing data from GSHHS_f to MySQL database

I'm doing a summer project on geospatial development using python and I've been following the book Geospatial Development Using Python by Packt Publishing. The thing is, I've tried to import the GSHHS ...
0
votes
0answers
25 views

GPS positional, and quality data collection using QGIS

I was wondering if it was possible to record the position along with some of the quality control data in a table when using the GPS information functions to collect some mapping data. I would like to ...
0
votes
1answer
45 views

How to simplify shapefiles without losing attributes?

I want to simplify a huge shapefiles using mapshaper. However whenever I simplify the shapefile I loose a lot of data attributes. how can we simplify the shape files while retaining at least some of ...
0
votes
2answers
47 views

How to disable Layer Preview in geoserver, which is available by default for public?

I am using geoserver for publishing my spatial data. The problem I am facing is, Any public user can download my spatial data without my permission using default URL of geoserver. This is obviously ...
0
votes
1answer
47 views

Want to get an SHP file for my coutry Algeria

H everyone , i'm running a clustering test on my country with R, but the problem the clustering doen't look good because of the map i have, i hant to get a bigger map of my country 'ALGERIA' in an SHP ...
0
votes
1answer
43 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 ...
1
vote
2answers
40 views

Remove unneeded columns from geographic data file?

I have some GML data that has some unneeded columns in it. I'd like to remove these columns in order to reduce the file size. (To clarify: I mean that the file has many points in it, and each of these ...
0
votes
1answer
38 views

How can I add data from Points to Polygons (intersected or near) in ArcGIS 10

I'm using ArcGIS 10. I have a Point and a Polygon shapefile. The Points have a NAME field filled, and the Polygon the same but emptied a minority (350 out of 3000). I need to catch these names from ...
2
votes
3answers
38 views

What is the X Y coordinate in this data set?

Anyone knows what the x y coordinate in this crime data set is? https://data.cityofboston.gov/Public-Safety/Crime-Incident-Reports/7cdf-6fgx I think it is not lat, long. How do I convert it to lat ...
2
votes
0answers
32 views

How is Canada Vector Data (CanVec) hydrology data collected and updated?

Canada is vast and collecting any geographic data must be a monumental task. Natural Resources Canada provides a free access to a comprehensive Canada-wide topographic data now refereed to as CanVec ...
1
vote
1answer
2k 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/) ...