Questions tagged [data]

Any collection of related facts arranged in a particular format; often, the basic elements of information that are produced, stored, or processed by a computer.

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Free heightmap dataset for Kraków, Poland?

Is there a freely available (governmental?) heightmap dataset for Kraków city (in Poland) with horizontal grid ~5m (or better) and vertical resolution ~ +/- 0.1m? Ideally, it would include building ...
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56 views

Where can I obtain data on flood sites, land sewage systems, and property value?

I am a college student trying to obtain this data for a class project. If anyone can help that would be great. Basically, my hypothesis for this project is that land sewage systems that have not been ...
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API to find polygon for cities and administrative boundaries in India

I am new to GIS and learning basics by going through various forums. I am looking for a way to get polygon coordinates for any place (city, 2nd/3rd order administrative division) in India. I started ...
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67 views

Where can I find wind maps for the Mediterranean/Middle East?

I do debris modeling, sim, and analysis for missile interceptions. I have been looking for hours and I can't seem to find the information I'm looking for. So my question is... Where can I find ...
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357 views

Best band ratios in Aster data?

I am interested in the determination of lithology by using ASTER band ratio. I try to a lot of band ratio (for example RGB 4/8, 4/2, 8/9) but I didn't get a good result. Do you think what is the best ...
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33 views

Adding a layer can sometimes load raster footprint!

Just trying to refine my ArcObjects code to add a layer into ArcMap based on passing the fully quailified (String) name of the layer - problem is, if it's a raster, it will load in the vector ...
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100 views

Lat/Long attribute to Trimble Pathfinder Data Dictionary

Is it possible to add beginning and end point lat/long attribute to Trimble Pathfinder Data Dictionary before collecting data in the field?
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66 views

Looking for a source of data for these specific United States Demographics for People and Businesses

Sorry for if I come across ignorant. I usually hangout over at StackOverflow. I'm a developer and a client has specific demographics needs that I'm not sure where to get. I looked at some Census data ...
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98 views

Seeking elevation/topographical Shapefiles?

I'm writing an Android navigation application using Java in my own time as a learning exercise. It reads Shapefiles (with some pre-processing by me) downloaded from http://download.geofabrik.de/europe....
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328 views

Seeking Road Data (for NE U.S.) to use in ArcGIS Network Analyst?

My current network dataset is utilizing North America Detailed Streets Layer Package, however, I would like to try out some other road networks to compare the the results. Would need the road data for ...
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572 views

Where can I find free shapefiles of oil/natural gas pipelines in Mexico?

I'm looking for free shapefiles of oil or natural gas pipelines pertaining specifically to Mexico or even trans-national pipelines between the U.S and Mexico.
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Point Symbolizer() in rundemo.cpp file Giving error

The code is given Below: roads2_rule_11.append(point_symbolizer("abc.png")); The error is given below: rundemo.cpp: In function âint main(int, char**)â: rundemo.cpp:142:57: error: no matching ...
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28 views

New York Vision Zero Data

I'm trying to open Vision Zero Data provided by NYC, but they've not provided any documentation or guidance. Does anyone have any guidance? I'm ideally looking for such data in a CVS/excel type ...
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215 views

Data extract widget - Flex

I have successfully created a data extract widget. It works great. I would now like to be able to set a limit say of 5000sqm or something. I have seen other sites do this. They have a message pop up ...
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89 views

Is there a way to automate POI collection from websites?

I am searching for an easy method to get lots of points geotagged/georeferenzed into several shape files. I am working at a project where I need to collect all parcel shops in germany (but I will try ...
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242 views

GIS files for US Special Districts?

I'm looking for GIS files (shapefiles, geoJSON, KML...) for US special districts, but I can't find them anywhere. Special districts are single-purpose local government distinct from counties and ...
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234 views

Get house addresses within polygon?

Is there a data source/service for the USA where, if we provide a polygon, it provides the addresses of all houses contained within it? I just want to know if this type of functionality or similar to ...
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333 views

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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370 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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4k views

Seeking block (sub-district) level boundaries for India?

I'm looking for block (sub-district) level shapefiles for India. The GADM database only has files for the 2300 Tehsils, whereas I'm looking for the about 5500 Census blocks (sub-districts) for any ...
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169 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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464 views

Global address datasets for testing?

Are there any free global address datasets I can use to test my geocoding application? I'm looking for a dataset that contains residential addresses from countries around the world. I don't need a ...
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39 views

Dense data set of locations for flow analysis

I want to do some analysis on real world data related to crowd flows and now I am looking for a publicly available (or at least available to academia) data set of trackings in a crowd. The data set ...
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115 views

Sources for meterological data with high resolution

I was running Maxent on an endemic species of andaman and nicobar.But the climate data I have from worlclim.org ( tile number 29 ) is not of high resolution and thus I can't see the distribution ...
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701 views

Where can I find geodata on livestock densities?

I am currently looking for geodata that represents livestocks (cattle, pig, poultry) at most detailed resolution for France. Up to now, the best data I was able to find is the FAO's GLOBAL LIVESTOCK ...
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951 views

How to get National Geographic basemap in QGIS?

I'm proficient in ESRI's products and recently started using QGIS. I've used the national geographic world map (NatGeo_World_Map) in ArcMap, but am struggling to replicate this in QGIS. The map is ...
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254 views

How to rotate u and v components of wind in rotated gribs?

I have a grib message of a rotated hirlam product. The grib message states, that the u and v component contained are relative to the rotated grid. How can I unrotate them?
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26 views

Algorithm to compile Lisiecki stack? (5MM-yr Temperature Record)

I have obtained the Lisiecki stack data from www.lorraine-lisiecki.com/stack.html How do I convert the d18O measurement into a figure for average surface temperature? What is the best algorithm? I ...
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56 views

severe thunderstorms warnings dataset for europe

I'm looking at the possibility of using georef data on historic thunderstorms alerts. Does anyone know of a good (free) source for this information?
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78 views

Where to find Data with site that have hazardous, toxic or radioactive substances?

Does anybody know where to find data that lists the location of sites that have hazardous, toxic or radioactive substances? I'm working on a HUD project and need to be able to find out if sites for ...
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280 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 ...
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40 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 ...
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481 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 ...
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137 views

How to maintain schema when copying feature from layer 1 to layer 2, where both layers have same schema?

If I load two unique layers, wherein each layer contains unique data, but both layers share the exact same schema, why is it when I copy a feature from layer 1, and paste it into layer 2, the ...
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85 views

Process to load elevation data into Oracle 11G

We have the National Elevation data set from USGS and considering loading it into Oracle (11G) database. Can someone help with the process/steps?
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322 views

Street block and Census Block

Study Area: Manhattan I'm measuring the street density using Street Network Grain size measure = Number of Street blocks per square mile. I have the NY street network but I do not have the map of ...
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1answer
2k views

Seeking Marine Traffic Routes Data?

We are planning to implement a routing application to monitor marine traffic. The issue is that we either need a data set that has international sea traffic routes data or a clear definition of it. ...
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1answer
154 views

Seeking 4-band satellite imagery?

I'm looking for good quality, fine resolution 4-band satellite photos of Sweden for academic use (and I'm willing to pay for it). What I'm after is as detailed as possible photos of certain part of ...
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1answer
315 views

Postal codes of China

Where can I find geodata with postal codes of China with an open license (commercial use is allowed)?
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3 views

How to aggregate properly 8-days MODIS ET to a monthly ET?

I am looking for a robust method to aggregate the 8-day MOD16A2 (or MOD16A2GF) ET_500m values to monthly ET. Since ET_500m and PET_500m, are the summation of 8-day total water loss (0.1 kg/m2/8day). I ...
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15 views

How to index USGS ARD Satellite Data into an Open Data Cube?

I am trying to index a Landsat8-Satellite-Dataset from Massachusetts in the USA. I downloaded the dataset from USGS. Below my question you can find the datacube-metadata.yaml-File. It is surface ...
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20 views

How to cluster meteorological data

I want to apply the clustering techniques with meteorological data (Georeferenced data), and each cluster must represents a type of weather (sunny, cloudy,...), I try with some spatio-temporal ...
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12 views

Looking for rivers data of South Italy

I am working on a twelfth-century description of South Italy (Calabria, Apulia and Campania) which describes rivers that are now dried up. I am attempting to create maps which reflect the description ...
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12 views

How to calculate hot and cold spots using ArcGIS

I have to calculate the GiZScores to Dengue incidences in District wise.This should be done using ArcGIS software by using Getis Ord GIS tool. But the problem is that I have to use climatic factors (...
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1answer
28 views

Visualize GPS Geolocation data over time

I have GPS coordinates along with timestamp, and I am looking for a library that will allow me to visualize this data over time. Similar to how you would visualize a GPS journey on a map using Python. ...
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19 views

County list of Woodard's American Nations

I've been looking for county list of Woodard's map of American Nations, however, I only found maps of it and certainly as a beginner in the field, I am unable to transform this map into tabular list ...
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16 views

QGIS becoming unresponsive after I try and add (relatively small) layer

Each time I try and add a CSV as a delimited text file, I see this: The file is not large. Only ~2k rows and 462 kb. I've certainly uploaded larger files to QGIS and never had any issues. I've force ...
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17 views

Show data labels in Oracle Analytics Maps

Can anyone assist me in adding data labels in OAC (oracle analytics desktop ) Maps. The image below shows state names ,I have a similar requirement to add names to the city. I tried below json text ...
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15 views

Having a shapefile count how many times it appears on a certain color of a .img

If I have a shapefile with points on it for Forest Fires and I want to see which type of tree the point is on, how would I go about that? I have the .img of each type of tree with a color ...
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40 views

Train/test split in QGIS

I have a polygon layer, which contains information about different classes and I am using it as training areas for supervised classification. Is there any way (like tool or plugin) in QGIS which could ...