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.
1,609
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ERA5-Land Monthly Aggregated January 1st 1965 minimun temperature error [closed]
I have found an error in ERA5-Land Monthly Aggregated - ECMWF Climate Reanalysis Dataset, in the minimum temperature data January 1st 1965.
The point is near 270 ºC, in any point n Madrid city (...
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Downloading Polygon/Administrative Boundaries using WikiMapia
Is there any way to download administrative boundaries / polygons for a small city through Wikimapia?
I tried to download the boundaries but the results were points not polygons.
I need to download ...
CommunityBot
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Terra/geodata world map cropping issues, possibly due to truncated extent
Cropping geodata world map across Greenwich (not exactly though) or close to the poles gives a "Topology Exception" error on RStudio (Posit) cloud, although not on RStudio desktop. Also, the ...
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Household Income Data Source (Canada)
I'm interested in accessing a shapefile or tabular dataset with household income data at as granular of level as possible in Canada (subunits on the island of Montreal specifically). Is this data ...
CommunityBot
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2
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Searching for UN regions/sub-regions shapefile
for a visualisation project I need the boundaries of the UN regions as defined here : http://unstats.un.org/unsd/methods/m49/m49regin.htm
That's 21 polygons for the sub-regions.
I have been looking ...
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Overview over current activities and results to represent GeoData semantically to allow formal reasoning
I am currently interested in representing some geo-data in a semantic way via RDF/OWL to allow formal reasoning on a geometry level. However I am lacking a good overview on the current standards to ...
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3k
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Seeking Spain Districts shapefile?
Does anyone know a source of districts in Spain?
I can find Madrid and Barcelona each at a different site. If I try to collect the districts for the whole country it would be a massive undertaking.
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Seeking USA congressional district to county relationship files?
This must be a common enough problem that other users have come across it. I've finagled my way around inconsistencies and dropped observations, but now I'm reaching out to see if anyone knows of a '...
CommunityBot
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4
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Shapefiles for U.S. Area Codes (NANP)
I have a bunch of telephone numbers (just the area codes), and I'd like to geolocate them and make a map, but I haven't had too much luck googling for shapefiles for Area Codes. Surely these are in ...
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Where can I find the highest resolution shapefiles for counties or states
I am looking for a download source which has the highest resolution (greatest detail/accuracy) for all counties in the US. More specifically I run into this problem mainly when dealing with the ...
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Seeking national MLS boundary dataset for US
What I am looking for is some type (any type) of national map which outlines the boundaries of each of the 1000+ MLS (Multiple Listing Services).
For some reason the National Association of Realtors ...
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Shapefile for India which is up-to-date to display regional borders
I need a shapefile for India which is up-to-date to display the regional borders. By up-to-date (in 2014), I mean that it includes Telangana as a state. Many shapefiles that I downloaded do not have ...
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Visualizing and organizing traffic flow data for an intersection [closed]
I'm looking for advice on how to organize data that describes traffic flows through several unconnected intersections over several years. I'd like to learn about the most basic representation of this ...
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No valid training data were found. (Error code: 3) with Random Forest
In the last two days I integrated three new variables: NDVI, EVI and Copernicus Land Cover. Since that moment my model doesn't go. I tried to cover the entire AOI with Modis and Copernicus Image with ....
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WorldClim models for future bioclimatic variables
About a year ago I downloaded tiff files with bioclimatic variables from particular CMIP6 model projections through WorldClim:
https://www.worldclim.org/data/cmip6/cmip6_clim10m.html
Previously, I ...
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Finding out date format in the list of house numbers in QGIS
In my dataset, the data which contains house numbers are converted to date format in QGIS. Is there any script or tool to identify and convert them to normal format?
E.g. Case:
Actual Door No format ...
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Just need a lo-res & 8-bit depth elevation map either real or fictional (BMP?)
I am a software developer working on a strategy game in my spare time as a hobby. I still have very little knowledge of and experience with Geographic Information Systems and the different file ...
CommunityBot
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I want to use the same code however the data comes from a different file type
I'm trying to run the same thing for a bunch of different data files most of them are TIFF files, which means the code is set up for TIFFs. However, two/three of my files are shapefiles and I can't ...
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Does anyone have data or shapefiles for tidal flats, mangrove distribution, or salt marshes?
I am looking to map out the salt marshes, mangroves, and tidal flats of the world, but I am having difficulty finding data for this. Does anyone have any such data? This is for a research project at ...
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Where can I get free New Zealand and Melbourne geodata?
I have just installed QGIS. Do any forum users know where I could download or access files and maps for 1) New Zealand, and/or 2) Melbourne/Victoria, Australia. Preferably it would be good to know ...
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3
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Seeking postcode shapefiles & census data for Netherlands
I would like to do some GIS mapping of the Netherlands, but I am having trouble finding official data files for the following:
Shapefiles for postcodes.
Census (population) data for postcodes.
And/or ...
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Searching Polish districts in JSON
I am looking for a map of polish 'powiaty', eng. 'county' or 'district' (i.e. second-level unit of local government and administration in Poland, equivalent to a county, district or prefecture) in ...
CommunityBot
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Looking for data source for all villages, towns and cities in the world
So, I've been working with Geonames data dumps, but I am finding that they are either not complete enough (cities > 1,000 population), or too complete. Here's an example of being too complete:
...
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How to manually edit 16 bit GDEM elevation data on a Geotiff file
I'm building a virtual 3D terrain scenery using both satellite imagery (google maps satellite) and elevation data from GDEM Aster elevation data (geoTIFF format files).
My problem is that the ...
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7
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What iOS (iPhone/iPad) app from the App Store can I use to collect data?
What iOS app from the iTunes App Store can I use to collect data (mainly points, perhaps photos) and later import them into my GIS?
I am mainly interested in an out-of-the-box solution, not develop ...
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4
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When a raster is clipped to a polygon with Python, why does it still take on the extent of the entire shapefile?
I am clipping a raster image to each polygon row in a shapefile in ArcMap 9.3 using the Clip tool (Data Management) in Python with Clipping Geometry set. While the clipped raster successfully depicts ...
- 2,668
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update one shapefile attribute table with values from another dbf table
I try to explain here what I am trying to do:
I have one shapefile and one independent dbf table with the same fields. In the dbf table all the fields are populated but in the shapefile attribute ...
- 2,668
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How to cite Geospatial Data that has been edited?
I used data from the Ordnance Survey for some maps I created. License information for the Ordnance Survey says to cite OS data like this:
Contains Ordnance Survey data © Crown copyright and database ...
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How to download the entire ASTER GDEMv2 dataset?
In October 2011, 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 ...
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Obtaining a chart data from a ui.chart trend line
I am trying to figure out how to obtain a list of data points from a trend line I created. I need to determine the highest value and the data point associated with 15% of this max. However, when I ...
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Triangulated Irregular Network (TIN) as a type of data in GIS
I'm taking an online GIS course of a reputed university and the instructor categorized GIS data types as
Raster
Vector, and
Triangulated Irregular Network (TIN).
Now I know that TIN is a vector ...
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420
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Classification with different data dimensions
I am trying to use the continuous change detection classification algorithm (ee.Algorithms.TemporalSegmentation.Ccdc() and it appears to be working for me, however when I get the results the data type ...
CommunityBot
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Issues with QGIS map projection and symbolizing point data
First off, I am using version 3.28 QGIS-LR on a Macbook 2015. I am currently taking an introduction course to GIS. One of the assignments was learning to project maps and visualize point data using ...
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Data about administrative subdivisions capital cities
I am looking for data about second or third rank administrative capitals in every African country (the administrative centre of a country territorial subdivision), but I can't find anything close to ...
CommunityBot
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Seeking world sea routes for ships [closed]
Where I can find world sea routes for ships?
I need it as a GeoJSON or shapefile format.
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113
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Download and Data Errors with 5 of WorldCLIM’s CMIP6 Future Climate Data models
I'm experiencing some data issues specifically for the following WorldCLIM’s CMIP6 Future Climate Data models, available at https://www.worldclim.org/data/cmip6/cmip6_clim30s.html
Data details:
...
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List of central coordinates (centroid) for all countries?
I need a list of the central points (centroid) for all countries:
China: lat/long (coordinates of the most central point in China)
France: lat/long (coordinates of the most central point in France)
...
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11
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Obtaining up-to-date list of US ZIP Codes with Latitude and Longitude Geocodes? [closed]
NOTE: This began as a question on Stack Overflow, which has subsequently been closed. I also noticed a similar question about Most Up-To-Date Source for US Zip Code Boundaries, but I believe this ...
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Looking for an Elko County Nevada Land Ownership Shapefile
I am looking for a Nevada Land Ownership shapefile.
County and state GIS don't seem to have anything beyond pdf.
Are there any public or commercial avenues to acquire land ownership in Nevada?
I'...
CommunityBot
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3k
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Seeking national (USA) interstate rest stop/rest area dataset
Does a national(USA) interstate rest stop/rest area dataset exist?
I don't care about format because I can worry about that later. I found some maps in Google maps, usually per state. I also have one ...
- 65k
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Export data from image collection Google Earth Engine
I have a function to get an average value per month for a band from an image collection. Full code is here.
var dat = ee.ImageCollection('NOAA/CDR/SST_WHOI/V2').select('sea_surface_temperature')
....
CommunityBot
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Download error in QField
I was not able to see the polygones and everything I worked on in the QField app in QGIS.
So I deleted the data from the local Storage. Since than it was stored in the Cloudan dI can see it on the ...
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Get values from raster file in R
I have never used satellite data and I'm using NASA's information of PM2.5 "Global Annual PM2.5 Grids from MODIS, MISR and SeaWiFS Aerosol Optical Depth (AOD), 1998-2019, V4.GL.03", I got it ...
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Can't find symbology layer for ESRI Global Land Cover
I have downloaded part of the ESRI Global Land Cover (https://livingatlas.arcgis.com/landcover/) as a raster but I am missing the symbology/legend info. The raster obviously contains numerical values ...
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Converting VICAR data to TIFF
I want to convert the VICAR data found at this ASU link
to TIFF that I can use in ArcGIS Pro.
How am I able to do this?
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357
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Looking for a complete list of cities by state, with area code
Our company is working on moving our sales assignments from area codes to ZIP codes, and we need some kind of dataset to help move existing assignments to the new system. Does anyone here know where ...
CommunityBot
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2
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Higher resolution of country borders
I have been looking and looking for a long while, but I was unable to find any freely available datasets for country borders with resolution higher than 1:1000000. I found this strange as I thought ...
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Seeking atmospheric WMS data for South America and Brazil
I'm working in a environmental project in Brazil and I need to create, if possible, a map service to show atmospheric conditions.
I'm looking for a WMS source to show cloud and another atmospheric ...
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2
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426
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show dwg,as background not as vector
I have some dwg files that i need to show as background on my map, but the DWG is not need to be vector layers, i need only to show them with out the need of using.
if i am trying to convert it to DXF ...
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Seeking US State or National business (or employer) database lists
This question dovetails with What kind of datasets are necessary for geomarketing applications?.
I am familiar with some of larger, paid-for business registry's like InfoUSA and Dunn & Bradstreet. ...
- 31.4k