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.
1,608
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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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44
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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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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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19
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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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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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2
answers
87
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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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33
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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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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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7
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1
answer
65
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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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29
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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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1
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32
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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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1
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51
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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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1
answer
54
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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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1
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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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1
answer
163
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Sourcing GIS map and shapefile of Sudan
I have no prior knowledge with GIS.
I am looking to source a GIS map of Sudan (North Sudan) after the succession (2010) projecting the states of Sudan.
I also need to get a shapefile of Sudan.
I have ...
4
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1
answer
274
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Why GADM state/county shapefile for Kenya does not line up with OpenStreetMap data?
I am fairly new to QGIS and am using XYZ Tiles for OpenStreetMap and shapefile layers from GADM to see boundaries in Kenya (to start).
I have an OpenStreetMap layer and gadm41_Ken_1.shp layer and the ...
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1
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118
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Cadastral areas of Ukraine [closed]
I´m looking for cadastral areas of villages of Ukraine. Is there some available that can be used to work with them in Qgis?
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30
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Merge shapefiles with different divisions
I have two shapefiles with similar borders but different internal divisions. One shapefiles shows schools' catchment areas and I have a field "mobility". In the other shapefile, there are ...
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93
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Download the data of a picture Sentinel-5P
I am researching about air pollution in Tehran. While I want to export data about parameters like NO2, SO2 or HCHO in Sentinel-5P, in Google Earth Engine, the data that export in CSV are different ...
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59
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Floating car data / Floating mobile data in open source
Someone know if it's possible to find Floating car data (FCD) or Floating mobile data (FMD) in open source?
I found that you can make live map for airplane with the open source website "opensky ...
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1
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88
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Official road and rail networks of Brazil [closed]
I am looking for the official road and rail networks of Brazil, produced by a government department. I haven't been able to find it on the IGBE website and the Humanitarian Data Exchange utilises a ...
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39
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QFields date gone but still here
I used QField on my iPhone for my work and synchronize my data on QFieldCloud but after when I opened my maps in QGIS and my phone The data is gone, but the problem is that I can still see my data on &...
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64
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Raster data are shown but can't be clipped or changed
I'm struggling with a new problem on QGIS 3.30. Here's what I want to do:
I downloaded raster data from my country in .img and can easily import them from my local driver into QGIS. The problem: After ...
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73
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How to get multiple rows to show up in pop-up/associate with one polygon?
I am trying to get two rows of data to be associated with the same polygon. Currently only one line of data is associated with the polygon and the other is not associated with any shape- it is just a ...
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2
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1
answer
107
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Prioritise label by field containing data importance in the data QGIS
I have a file with many labels to show on a map. However, I want to prioritize the label by it's data. Example if my data says 3000 people live in a city, I want to prioritize this over the one that ...
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96
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Coordinates: optimizing a table that contains lng/lat coordinates for clustering (in PostGIS)
I have table in PostGIS where I store coordinates in the 4326 lng/lat SRID, to make it easy to store GPS coordinates collected from mobile devices.
I'm using the coordinates to query the table based ...
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1
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77
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Check whether an element is maintained over time [closed]
I have a 6 years time series with a thousand of detections of elements in cities (all databases have the same structure).
Year
geometry
Area-m2
2000
POINT (-122.38705 37.72066)
37.326319
2000
POINT ...
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1
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131
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Download NDVI data in Excel for every country in the world from 1982 to 2016
I am a research intern and I need to get the average monthly NDVI for all countries in the world in an Excel file.
How can I do this?
I have already tried with NASA EarthData, Copernicus, Google Earth ...
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1
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86
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QGIS 3.28.3 Firenze - How to show info in a GeoJSON file imported as a raster next to the concerned points
I'm having problems with GeoJSON files from the renass.unistra.fr/ site. Those contains seismic data build this way:
{"features":[
{"geometry":{"coordinates":[0....
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1
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34
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Looking for the giant list of municipalities of the world
I have a newbie question, but one that didn't seem to match earlier questions. I need a complete list of municipalities and their location for a bunch of countries. The data I need is just name, ...
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Time format/ data display changes following join then export to data
I am working on a simple join of data in an excel table to create an attribute table from kml's that were converted to polygons. The join works perfectly, however when exporting the data as a new ...
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1
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54
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How to only get the population per country with World Bank Open Data
I try to get the population of every country with an API, but I looked at the World Bank Open Data but I can't find just the population of each country.
I looked, and I find lots and lots of data ...
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Data sources that can be used to retrieve country from latitude, longitude, and date
I have seen countless questions asking about converting latitude / longitude coordinates into country, state, town, etc., but I found no question which includes a time component. I have tried many ...
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1
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319
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How to download the Sentinel-3 OLCI WFR data
I am interested in Sentinel-3 data concerning water parameters: OLCI WFR at level 2.
I've never used Sentinel data before so probably I am just doing something wrong. Based on the Sentinel User Guide ...
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1
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Where can I find a map of US county boundaries that reasonably shows the boundaries over bodies of water?
Census, ESRI, and others provide shapefiles and feature classes of US county boundaries, but all the data sets I can find seem to clip the boundaries at the shoreline. So they really only show the ...
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1
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113
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Getting high resolution DEM for a location [closed]
As a part of my project, I want high resolution (10m approx) DEM for my desired location.
How and where can I get it?
I already tried with 30m DEM obtained from USGS.
I am getting blurry DEM, if I ...
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1
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86
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Seeking polygon data for Germany's urban areas (metropolitan areas) [closed]
I am currently working on a project where I would like to showcase trend differences between rural vs. urban areas in Germany. I am wondering if anyone in this site is able to point me to a resource ...
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1
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265
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Seeking parcel boundaries data for Germany or Sweden? [closed]
I'm trying to find parcel data (property boundaries) in a GIS format.
I tried googling and nothing is coming up.
I would pay for a vendor like CoreLogic or ReportAll that have parcel data only in the ...
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1
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195
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Finding intervals of latitude/longitude of cities throughout the world at 0.01° precision [closed]
Geographical coordinates determine a specific point on a map.
I am searching for the coordinates interval (thus to frame the area) of different large cities by latitude/longitude at a 0.01°x0.01° ...
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122
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How do parcels relate to United States Census hierarchy?
The United States Census Bureau operates on the Standard Hierarchy of Census Geographic Entities, which ranges from NATION (n=1) to Census Blocks (n=8.1 million as of 2022).
It is my understanding '...
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527
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Seeking Italy building shapefile [closed]
I'm looking for a buildings layer shapefile for Italy but the one I can find for free here looks incomplete in comparison to when I do a sense check against Google Earth: https://mapcruzin.com/free-...
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1
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172
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Downloading recent GRACE data
I have been doing GRACE data processing in GEE, but from what I can tell - only the first mission's data (dating from 2002/04 to 2017/01) is accessible through the library for import.
Can I access ...
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1
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1k
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Seeking Europe shapefile with boundaries [closed]
Where can I find a simple shapefile or Geopackage file for Europe with boundaries?
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1
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531
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Seeking FREE satellite images than ones provided by MapBox [closed]
I have made a desktop map system for myself with NW.js, MapBox GL JS and MapBox.com's free satellite pictures.
I don't have money to pay anyone.
While it's cool and fun to use, it's largely ruined by ...
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1
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123
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Accessing historical precipitation data outside of GEE
I'm looking for historical and also present climate data for some polygons I have.
I would like to be able to access rainfall data for these points. I cannot use GEE and was struggling to find a good ...
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1
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338
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World hexmap based on IPCC AR6: matching country codes with WGI reference regions
I would like to reproduce the hex maps used in the IPCC AR6 report.
Is there a publicly available lookup table to match country codes with WGI reference regions?
This isn't available through the IPCC ...
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1
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2k
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Seeking SRTM 90m data
I'm looking for 90 meter resolution SRTM data to coverage a large state in the Western US. I used to use Derek Watkins' awesome tile grabber for SRTM90: https://dwtkns.com/srtm/
but as he explains on ...
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923
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Seeking simple vector layer of all countries in world
I'm looking for a vector layer of all countries in the world and (only) their mainland borders, to be used in QGIS 3.10.11. I've searched in a quite few places, including Eurostat, MapTiler and ...
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1
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81
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Seeking above ground biomass global map/dataset?
I need a global above-ground biomass raster dataset from which I will subset a certain area of southeast Asia. I tried to use GEDI data but couldn't work out how to use this data.
Is there any other ...
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When did USPS stop shipping its TIGER/ZIP+4 product?
When did USPS stop producing its TIGER/ZIP+4 dataset?
Updates to the product page archived by the WayBack Machine stopped in July 2011, but it looks like some people might have been using it later ...
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