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.
1,595
questions
-2
votes
0
answers
17
views
Shapefile of county population
I have been able to find information such as the 'Social Vulnerability Index' (SVI; https://www.atsdr.cdc.gov/placeandhealth/svi/data_documentation_download.html) and shapefiles related to census ...
- 27
3
votes
0
answers
60
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 ...
- 31
0
votes
1
answer
66
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 ...
0
votes
0
answers
10
views
Seeking lithology data for Kenya
I am using AHP in ArcGIS to identify potential groundwater zones within a region in Kenya. I need lithology data to be able to complete the task.
Where can I find the data?
- 1
-2
votes
0
answers
20
views
Precipitation Data for GIS [closed]
I'm looking for precipitation data for a mapping project in GIS. What sources are available for North America? What sources do people recommend? I'm hoping to use a NetCDF or raster file for the data ...
- 1
0
votes
1
answer
29
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 ...
- 11
-2
votes
0
answers
61
views
Converting dataset formats to JSON
My state government in Australia has some free source datasets and I want to use some to create maps in Geoguessr.
Geoguessr needs me to upload in JSON format but the offerings for the dataset format ...
- 1
1
vote
1
answer
37
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....
- 13
-1
votes
1
answer
26
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, ...
- 97
0
votes
0
answers
25
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 ...
- 1
-2
votes
1
answer
20
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 ...
- 1
0
votes
0
answers
40
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 ...
- 109
-1
votes
1
answer
96
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 ...
- 99
-1
votes
1
answer
55
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 ...
- 13
-1
votes
1
answer
61
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 ...
0
votes
1
answer
54
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 ...
- 11
-1
votes
1
answer
103
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 ...
- 139
-2
votes
1
answer
144
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° ...
- 39
0
votes
0
answers
61
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 '...
- 9
0
votes
2
answers
267
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-...
- 11
0
votes
0
answers
15
views
Interpreting TerraClim Palmer Drought Index min and max values
The Palmer Drought Index normally falls between -5 and 5; however, the TerraClim dataset has a min max of -4317 and 3418. What is the transformation? I have read the associated citation paper, and ...
- 53
0
votes
1
answer
75
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 ...
- 9
0
votes
1
answer
701
views
Seeking Europe shapefile with boundaries [closed]
Where can I find a simple shapefile or Geopackage file for Europe with boundaries?
0
votes
1
answer
370
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 ...
- 9
1
vote
1
answer
105
views
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 ...
- 1,919
0
votes
1
answer
179
views
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 ...
- 775
0
votes
1
answer
803
views
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 ...
- 1,173
0
votes
0
answers
623
views
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 ...
- 365
0
votes
1
answer
68
views
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 ...
- 57
1
vote
1
answer
82
views
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 ...
- 108
0
votes
1
answer
46
views
Finding climate tabular data on specific area
I'm new to this sector and I would like to find a sort of tabular dataset regarding climate information (weekly/daily: precipitation, humidity, windy, and so on) for a specific area of interest (in my ...
- 11
6
votes
2
answers
1k
views
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 ...
- 71
0
votes
2
answers
116
views
Need TIGER/line national (USA) road files, not per county
I'm trying to get the TIGER/line files for roads to create a raster of major and minor road density for about half of the USA.
The problem is the interactive tool provided
(https://www.census.gov/cgi-...
- 135
0
votes
1
answer
429
views
Finding building heights/levels for North America
Until recently I have been a blind user of tile maps using Leaflet and one or the other major providers such as Here, MapBox etc. For my current project I find it necessary to have far finer control ...
- 141
-1
votes
1
answer
103
views
Seeking free satellite imagery basemaps to be used in webapps with frequent updates
I am looking for satellite imagery base maps to be used in my web application. I have been using Google satellite base maps, but they are very old. I need something which has frequent updates, weekly ...
- 39
1
vote
1
answer
328
views
List of commonly used categories in POIs
I want to add POI management functionality to an existing software project. Though providing a list of categories seems a bit tricky. On one side, I do not want to reinvent the wheel and create my own ...
- 334
3
votes
2
answers
669
views
Seeking cities boundaries of Canada
I would like to download Canadian cities' borders as shapefiles for clipping satellite imagery for several cities. I could find the US city borders as "Urban Areas" in the following page: ...
- 383
1
vote
1
answer
621
views
Seeking detailed Cyprus borders shapefile
I need to to show the Republic of Cyprus, the TRNC, the Buffer Zone and the British Bases.
I've looked everywhere and every time it only shows the Republic, which makes sense as it is the UN ...
- 19
0
votes
2
answers
85
views
Seeking open access 10-30 m spatial resolution imagery?
The data from Landsat-8 and Sentinel-2A&B satellite missions is available at no cost.
I am curious to know if there are other sources of freely available multi-spectral moderate resolution ...
- 1,178
-1
votes
1
answer
50
views
Downloading CRU TS 3.0 data with custom temporal range
I want to download CRU TS 3.0 data from year 1960-1990. However in the website https://catalogue.ceda.ac.uk/uuid/c9dd2107e0b7e8c7b6aca7c34980f679 the data is downloaded from 1901-2006.
Is there anyway ...
- 143
0
votes
0
answers
75
views
Mapping election data by zip
I am trying to create a map of Presidential election results by ZIP code, but all I have been able to find is election data by county (too broad) and precinct (too narrow).
Does anyone know of a ...
- 109
-1
votes
1
answer
305
views
Seeking data on population per postcode district in UK [closed]
I'm searching for a data set which contains the population of each postcode district (e.g SG1 or LE2) in the UK. I'm struggling to find this anywhere especially for free.
Is there anywhere I can find ...
- 199
2
votes
0
answers
94
views
Representing Hydrographic survey in QGIS
I have a depth Layer (soundings) and I would like to represent the labels the same way as in a Hydrographic Map.
As you can see in the image bellow, we have this kind of representation in a ...
- 940
-1
votes
3
answers
1k
views
List of extreme latitudes and longitudes for each US state?
I need a list of extreme latitudes and longitudes for each US state. That is, max / min latitude, max / min longitude.
The purpose is to exactly center each state map when initially shown.
I found ...
0
votes
1
answer
42
views
Using NASA Above landcover imagery in place with Qgis
Landsat-derived Annual Dominant Land Cover Across ABoVE Core Domain is composite tiled classified imagery dataset covering the years 1984-2014. The format is elegant and clever but hard to use. Each ...
- 27.9k
0
votes
1
answer
38
views
Using NASA Above landcover imagery in place with ArcGIS
Landsat-derived Annual Dominant Land Cover Across ABoVE Core Domain is composite tiled classified imagery dataset covering the years 1984-2014. The format is elegant and clever but hard to use. Each ...
- 27.9k
0
votes
1
answer
277
views
What is name of dataset in GEE to estimate level of urbanization for each county (district) in a country /region?
I am epidemiologist, not remote sensing expert. I am interested to find association between disease incidence /reported cases with urbanization (hypothesis " more bigger cities , more incidence&...
- 105
0
votes
0
answers
30
views
Download salinity data from Government of Canada [duplicate]
Since I would like to use the salinity data with lat/lon in the Gulf of St. Lawrence, Canada to compare with the fishing data. I'm trying to download the 2010-2019 average salinity data. As the table ...
- 3
0
votes
2
answers
73
views
Downloading salinity data from Government of Canada
Since I would like to use the salinity data with lat/lon in the Gulf of St. Lawrence, Canada to compare with the fishing data.
I'm trying to download the 2010-2019 average salinity data.
As the table ...
0
votes
1
answer
40
views
Seeking incline of roads data
I need to plot the incline of roads in England. I could estimate this using elevation data, however this would be a significant amount of work.
Does this data already exists (ideally free with a ...
- 109