Questions about obtaining data.

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Conservation International Hotspot Data

I am creating a Heat Map and need Conservation Internationals's Biodiversity Hotspot Data in GIS form. I have tried to find the data online, but have since been unable. Where would I be able to find ...
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1answer
51 views

Sample classification datasets?

I was looking for some publicly available ground data classification datasets, specifically, locations in e.g. latitude/longitude with a description of the land cover/land use, and a reference e.g. ...
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1answer
33 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
50 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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6answers
838 views

What is the best way to visualize multiple large LIDAR tiles?

I want to load approximately 10 large LIDAR tiles for analysis. I have tried using ArcScene but it appears there is a limit on how much data ArcScene can handle at one time. Each tile is 65-90MB in ...
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1answer
50 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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3answers
4k views

Converting WKB to WKT

how can i convert wkb to wkt form ... i stored coordinates in wkb but now can it will display to use in wkt form
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3answers
42 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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2answers
28 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
21 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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1answer
23 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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0answers
35 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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0answers
42 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
47 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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1answer
110 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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1answer
47 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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0answers
40 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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0answers
64 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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1answer
66 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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3answers
244 views

Where/how can I find/buy/make building footprints for Kent County, MI (Grand Rapids, Wisconsin, etc)?

We need building footprints for Kent County, MI along with their associated street addresses. Primarily we're looking for Grand Rapids and some of Wisconsin, MI, but if someone had access to this ...
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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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3answers
4k views

How to download the entire ASTER GDEMv2 dataset?

On October, NASA released the new ASTER GDEM global dataset (30m) and I have been wanting to get my hands on it. The only problem is that it takes forever to download and I do not feel like drawing ...
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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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0answers
71 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 ...
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3answers
587 views

Do you know of any sites where I could find some cool recreational shapefiles?

Do you know of any sites that I could find some cool recreational shapefiles? An example would be shapefile of the golf courses, ski resorts, or maybe baseball fields in the united states?
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1answer
138 views

How to sum the values for bins with the same location?

I have two maps in csv form, each has a latitude, longitude, and value column. Since not all the positions in one map are in another map, is there any way in QGIS to display a new map which only shows ...
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1answer
39 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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1answer
233 views

How to source the boundaries(latitude/longitude) information for US states, cities, Zip level

I am trying to color code the states, cities, zips differently based on certain parameters. As the user zooms in they should be able to see the different colors dynamically painted on the maps. Was ...
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2answers
57 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
49 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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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 ...
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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 ...
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0answers
27 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
50 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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2answers
66 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 ...
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4answers
854 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
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1answer
29 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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2answers
179 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
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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. ...
0
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1answer
125 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
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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 ...
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0answers
71 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
100 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? ...
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1answer
44 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
64 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
49 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
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0answers
22 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
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1answer
66 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
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2answers
87 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 ...
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1answer
41 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?