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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ERA5 data downloading

I have a problem regarding the data downloading from ERA5- land. I need data from 1950-2020 for the whole of India, I tried the official website of ERA but it allows me to download a file ...
Jaydey's user avatar
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17 views

GeoServer mosaic - Innertiling slow

I have mosaic rasters/vectors from db - as a layergroup. Individually layers do work quite well, and as a group decently at mid zoom/low high, but when zoomed to close, rendeering gets really slow. ...
Tomppeli's user avatar
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1 answer
27 views

How can I balance my data for doing a Random forest in GEE?

I am trying to do a Random Forest in Google Earth Engine. My data is unbalanced (more or less I have 3 times more points of one class) so I want to balance them. I tried to give diferent weights to my ...
Omar Tomas's user avatar
-1 votes
0 answers
29 views

Polygons of port areas

I am after the polygons that cover the port areas. I am already aware of data bases with shapefiles containing data and point location of ports such as https://msi.nga.mil/, but I need polygons of the ...
myradio's user avatar
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30 views

Sources for high-frequency total electron content

The OpenMadrigal initiative provides total electron content data through their worldwide GNSS network. However, this data is provided in increments of 30 seconds or 5 minutes. I was wondering if there ...
requiemman's user avatar
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Date availability for ECMWF/ERA5/DAILY

I've been working with the ERA5 Daily Aggregates - Latest Climate Reanalysis Produced by ECMWF / Copernicus Climate Change Service dataset, but lately I need data for the years 2021-2023. Will this ...
Maria Oliveira's user avatar
-1 votes
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33 views

Asteroid impact site aerial or drone imagery [closed]

I am trying to find a source for various topographic maps and aerial/drone imagery of asteroid impact sites for a project I have coming up. Are there any specific sources that focus on this topic, or ...
zzgaszz's user avatar
-1 votes
0 answers
31 views

Where can I find distribution circuit GIS datasets for amperage / voltage service at parcel or structure level?

Does anyone know of free or public sources of parcel data with electrical service information, ie amperage and voltage? I want to make a custom web map for compliance / siting for energy-intensive ...
Brenner Burkholder's user avatar
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US Census data for particular addresses

Is there a way to figure get United States Census data for a particular address, or are blocks the finest spatial resolution available?
Geremia's user avatar
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23 views

Looking for national landscape character typology - England

Natural England had created a landscape character type dataset which was available on Magic (https://magic.defra.gov.uk/magicmap.aspx), though it has since been removed - or the licence has. Is this ...
Marcel W's user avatar
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57 views

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 ...
mlyn's user avatar
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2 answers
174 views

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 ...
SVK99's user avatar
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37 views

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 ...
empgis2023's user avatar
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0 answers
173 views

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: ...
misheru's user avatar
7 votes
1 answer
67 views

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 ...
Bruno B's user avatar
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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 ...
Chioma's user avatar
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1 answer
49 views

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 ...
Lilia's user avatar
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1 answer
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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?
minna's user avatar
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1 answer
87 views

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 ...
Jan Pisl's user avatar
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1 answer
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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 ...
M Geoprocessamento 67's user avatar
-1 votes
1 answer
245 views

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 ...
New GIS User's user avatar
4 votes
1 answer
298 views

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 ...
Keshet21's user avatar
0 votes
1 answer
156 views

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?
Jozef Hiľovský's user avatar
1 vote
1 answer
34 views

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 ...
gusv2000's user avatar
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104 views

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 ...
fatemeh pazoki's user avatar
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0 answers
70 views

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 ...
Fonsny's user avatar
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1 answer
114 views

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 ...
Bichael's user avatar
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0 answers
40 views

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 &...
Alexis's user avatar
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1 vote
0 answers
68 views

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 ...
Daniel Nußbaumer's user avatar
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0 answers
103 views

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 ...
sadie's user avatar
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2 votes
1 answer
117 views

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 ...
user221899's user avatar
3 votes
0 answers
112 views

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 ...
Paolo's user avatar
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-1 votes
1 answer
78 views

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 ...
Luisa Fernanda Velasquez Camac's user avatar
0 votes
1 answer
183 views

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 ...
picha's user avatar
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1 vote
1 answer
91 views

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....
Brclsbtn's user avatar
-1 votes
1 answer
36 views

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, ...
Paul Hoffman's user avatar
0 votes
0 answers
34 views

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 ...
A Wohl's user avatar
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-2 votes
1 answer
81 views

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 ...
Eli-ott's user avatar
0 votes
0 answers
66 views

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 ...
N. P.'s user avatar
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-1 votes
1 answer
384 views

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 ...
Misery's user avatar
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-1 votes
1 answer
261 views

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 ...
Jim Titus's user avatar
-1 votes
1 answer
133 views

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 ...
Kaushik Vezzu's user avatar
0 votes
1 answer
98 views

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 ...
obkmrk's user avatar
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-1 votes
1 answer
327 views

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 ...
AdamGIS's user avatar
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-2 votes
1 answer
200 views

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° ...
Galactus's user avatar
0 votes
0 answers
147 views

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 '...
bashity's user avatar
  • 109
0 votes
2 answers
607 views

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-...
Arks's user avatar
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0 votes
2 answers
213 views

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 ...
Mehdi's user avatar
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0 votes
1 answer
1k views

Seeking Europe shapefile with boundaries [closed]

Where can I find a simple shapefile or Geopackage file for Europe with boundaries?
Darren O'Brien's user avatar
0 votes
1 answer
573 views

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 ...
Doxey's user avatar
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