Tagged Questions

Questions about obtaining data.

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Wind Data for Newfoundland or New Brunswick

I am looking for wind data at an elevation of 100 metres for Newfoundland and New Brunswick that I can potentially bring into ArcGIS 10.2.2 to augment my wind turbine siting process. Any information ...
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1answer
34 views

Classify points

I import 40000 XY datapoints in ArcMap. There is another third field with 40000 different values. I would like to classify all these values in just 5-10 classes but this option doesn’t appear when I ...
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2answers
54 views

Where can I find Tampa Bay building footprint GIS data?

I have looked on the city and county website and can't seem to find it.
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1answer
64 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 ...
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2answers
29 views

Southern Newfoundland and New Brunswick buildings data

I am looking for GIS data for southern Newfoundland and New Brunswick. For NFLD: - buildings, property line/polygon, basic contours, topographic items For NB: - buildings Let me know of any data ...
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1answer
23 views

Water Quality Data Acquisition Sources

I was wondering what sources are available, or if anyone has water quality data for the Great Lakes and specifically Lake Ontario. We are interested in mapping Phosphorus, Organic Matter, Nitrogen and ...
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3answers
43 views

Data of worldwide shore lines and bathymetry

Please excuse my probably naive questions because I am new to this stack exchange. Is there a free database with all geolocations for shorelines? Is there a free database for near-shore bathymetry ...
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1answer
26 views

Are there any simple map data sources like world.dat

I recently came across this blog post www.gnuplotting.org/plotting-the-world/ that used a file that holds a basic map of the world. Is there a name for this kind of data. Also is there a repository of ...
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36 views

Contents of Downloadable Data from ESRI website?

I'm looking for the simple grey basemap to use in a map I'm working on, but want to download it. It's one of the options with their dynamic data. ESRI has no real order on their download page. ...
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1answer
49 views

Where to find street names for each city in US?

I'm sorry if my question is stupid but I had to ask. I'm building a database of US states, cities, streets AND their basic relations to each other. I already have state and city tables. Where can I ...
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51 views

Looking for free tools to automatically generate spatial data catalogue

I've recently inherited a whole bunch of spatial data (mostly shapefiles but some .gdbs) which relate to a bunch of different cities. I'm looking for a way to take an inventory of what data I've got ...
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1answer
51 views

How do I display NYC community specific data on an interactive map without longitude/latitude coordinates?

I have downloaded the NY Department of Sanitation's Monthly Tonnage Collection data from https://data.cityofnewyork.us/City-Government/DSNY-Monthly-Tonnage-Data/ebb7-mvp5#revert and I want to use this ...
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52 views

Google Earth Canada NTS 1:50000 Overlay

Not that long ago there was a Google Earth kml overlay file (ie. wms-ctis.kml) titled Canada Geographic Names and Maps which included the Overlay Canadian topographic maps. This would allow one to ...
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1answer
74 views

Help choosing an appropriate GIS solution for the following question [closed]

I am currently researching for an appropriate GIS solution. My requirements are pretty simple: Ability to create circles, symbols or diagrams with transparancy tied to their geographical location ...
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1answer
146 views

What are the existing datasets of world maritime routes?

I have a list of cargo ports of all over the world and need to show some port-to-port trips on a map, and also to compute lengths of these trips. For that, I need a dataset of actual maritime routes ...
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0answers
69 views

Where can I get good GIS data with height profile of Malaysia?

I want to create a 3-dimensional map of Malaysia with grass, but first I need the required data. Does somebody know a good source? EDIT: s a final result, I want to make a 3-dimensional map, that you ...
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0answers
23 views

OpenStreetMap data quality [duplicate]

my company is considering switching from using Bing Maps to an open data source mapping option like MapBox. We are also looking into options like Google Maps. My only question is what the quality of ...
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2answers
50 views

Where can I find a global geocoding dataset based on postal code?

I'm looking to purchase a dataset (with a contract for updates) of postal codes to lat/long and city names for as much of the world as possible. Ideally the data would look like: country_code ...
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0answers
74 views

search the entire globe for locations with very steep hills

What are some databases that provide high-resolution data about altitude of the ground? It seems that with such a database (with resolution to about 10 meters or less), I could run some kind of ...
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2answers
62 views

Recreation data for Ontario (Canada)?

I am aware that a similar question has been asked HERE but I am looking for comprehensive sources of recreational data (specifically for the province of Ontario, Canada). Land Information Ontario ...
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2answers
50 views

Standard for identifying cities?

I was doing a research project a little while ago and found out about FIPS 6-4 which is used to identify counties in the United States. I also understand that this standard is a bit out of date. Is ...
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1answer
52 views

Updating Shape File Datastores on Geoserver

I am a web developer working with GIS guys who are concurrently working on a vector layer that updates every week or so, however, on our mapping application there are about 30 layers that would need ...
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2answers
67 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. ...
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0answers
61 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 ...
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0answers
26 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 ...
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30 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 ...
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1answer
56 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 ...
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1answer
32 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 ...
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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. ...
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0answers
89 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 ...
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1answer
61 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 ...
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1answer
72 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 ...
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1answer
60 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 ...
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0answers
24 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 ...
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1answer
65 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?
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1answer
39 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 ...
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1answer
20 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 ...
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2answers
106 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.
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1answer
81 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 ...
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1answer
57 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 ...
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3answers
86 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) ...
0
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1answer
132 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 ...
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1answer
152 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 ...
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0answers
22 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 ...
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0answers
37 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 ...
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1answer
73 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 ...
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2answers
138 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 ...
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1answer
82 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
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1answer
67 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 ...
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1answer
41 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 ...