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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27 views

Is USA block-level census data available for mass-download? If so, where?

Quick version Is there a way to mass-download block-level data from the USA Decennial Census besides just total population and housing? Explanation I know that some of the 2010 Census block-level data ...
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datasets catalog available in Google earth engine [closed]

I want MODIS L1B radiance data, I didn't get in data catalog. how can I get this data in google earth engine. In addition to this, Can anyone help me on how to get MODIS terra/Aqua 8days composite ...
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Median VIIRS nighttime lights data per county from 2016 to 2020 [closed]

For my research , I am interested to calculate median VIIRS nighttime light per county (total 36 counties) from 2016 to 2020. Will anyone share Sample code, Advice for preprocessing if required, ...
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19 views

I have tried to read the LAS file with QGIS but I always get the same error, what am I doing wrong?

LAStools console output Traceback (most recent call last): File "C:/Users/Jhonny/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\LAStools\LAStools\lasinfo.py", line 95, in ...
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32 views

Low polygon geoJSON

I am hunting for a very low polygon geoJSON world map with political boundaries. I have browsed the various map collections available online and cannot find what I am looking for. Closest I could find ...
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1answer
35 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 ...
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17 views

SRTM Digital Elevation Model

where do I find SRTM or sentlinel's high resolution DEMs for recent years. USGS is only giving the data till 2014, and I need at least for 2019. I've even tried sentilnel hub but the cloud cover is ...
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2answers
56 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 ...
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14 views

Efficient way to get elevation, aspect and slope in Europe

I need values of elevation, aspect and slope for specific points (more than 50000) within Europe. I already found the Copernicus EU-DEM. Unfortunately this does cover Ukraine, which I also need. ...
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20 views

Seeking Ocean RGB Reflectance Dataset

I am looking for a dataset of ocean reflectance. I am building some ML algorithms and I need RGB "ocean satellite images". I tried using the Landsat 8, and Copernicus datasets in Google ...
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1answer
20 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 ...
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30 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 ...
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1answer
38 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 ...
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25 views

USA road data set with lane widths?

I'm looking for a road dataset for the entire US that includes road and/or lane widths. For my purposes, the difference between an 8 foot wide lane and a 10 food wide lane matters a lot, so the OSM ...
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76 views

Downloading Google Earth images in universal map downloader

How can I download Google Earth images in universal map downloader in 2015 and 2020? There isn't any specific option for select year.
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3answers
119 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 ...
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1answer
18 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 ...
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1answer
20 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 ...
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1answer
39 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&...
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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 ...
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2answers
54 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 ...
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1answer
24 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 ...
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1answer
57 views

Seeking road network of Sweden with speed limits

I need road network data of Sweden with the speed limit of each segment of the road. I downloaded it from https://download.geofabrik.de/ but unfortunately, there are a lot of missing values there. Is ...
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17 views

Seeking Moderate to High Resolution Forest Fire Before and After Images

I'm trying to search through the moderate to high-resolution satellite image data sets for imaging that shows forests both before and after a forest fire in order to assess the burn severity and the ...
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1answer
51 views
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48 views

Trying to find historical building footprints or centroids [closed]

I'm currently doing a research project analyzing how cities evolve over time and was wondering if there were any good online databases for finding historical building footprints. I've been looking ...
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53 views

Seeking shapefile of urban, suburban, and rural areas of US [closed]

I'm looking for something like this, doesn't have to be super accurate. I've tried searching for the source of that image but to no avail.
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19 views

Where to find open tabular hyperspectral data for machine learning research?

Where can i find open datasets regarding " Wheat/Maize Leaf Spectra with Associated water content, Potassium and Nitrogen Measurements" for machine learning research i.e. hyperspectral ...
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3answers
108 views

Accuracy of country shapefiles

I am working with a country shapefile for Pakistan, however it does not seem to be completely accurate. I wonder if this is an inherent limitation of shapefiles, or whether I could find an accurate ...
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1answer
40 views

Is there an international standard for region codes that defines the European Union? [closed]

I have seen the ISO 3166 defines 2-letter, 3-letter and numerical codes for countries around the world. However, the European Union does not seem to have a code. Is there an international standard for ...
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19 views

Download Daymet tileID grid?

I'm trying to download tiled Daymet climate data ([see here])1. One can automate this process using a shell script, but you need to know the tileIDs that you want. Is there a way to download the tile ...
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1answer
23 views

Is there a standard vernacular for levels of political boundaries (specifically city, county, state, nation)

While building a geotemporal web app, I found that virtually all countries followed this simple four-level structure, akin to what we in the US of A call: city, county, state, nation. However, most ...
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1answer
131 views

How do I clip a raster to the shape of a polygon (non rectangle)

I would like to clip a raster to follow the shape of a river, which has lots of meaders and bends. I have created a buffer for the river of 300m and was hoping to use this to clip the raster. However, ...
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39 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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1answer
150 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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1answer
34 views

Where can I purchase small scale high res raster imagery?

I am doing a personal project in my neighborhood that requires some georeferencing and as such I am looking for some sub-1m accuracy orthos with which to assist. The normal free sources such as USGS ...
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26 views

Ground Truth Data for India [closed]

I'm starting to get involved in a humanitarian project to understand crop-type and crop-yield in India to identify areas where they may be food shortages. The current approach for this project is to ...
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20 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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1answer
52 views

Get the begin and end coordinates of city municipality

I am not sure if this is the right place to ask this question. I would like to have an idea of precise coverage (extend) for the latitude/longitude of the city of Porto, Portugal. This is in ...
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19 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
116 views

QGIS points disappear after changing CSV file location, changing data source doesn't help

I moved my database and shape files, and wanted to relink them to my QGIS project. The shape file worked fine, but the CSV file wasn't reloading properly no matter what I tried. I could see the fields ...
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25 views

What is the best way to deal with inconsistent gSSURGO data across state boundaries? [closed]

I am calculating available water content (awc) using the values aws0_999 and tk0_999a from the gSSURGO Value1 table for South Dakota and Wyoming to use in a soil water balance model (SWB) to estimate ...
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1answer
62 views

How to get landmarks data contents that are added and deleted between 2 landmarks layers shapefile

Now I have 2 layers of landmark,2019 version layer(Blue) and 2020 version layer(Purple). I want to know landmarks that are added and deleted in year 2020 and I see the landmarks that are added and ...
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1answer
123 views

My dataset lists state and county FIPS codes separately. How should I combine?

I can't do a simple "concatenate" because the codes don't have leading zeroes. Are there any available APIs that I can use to geocode this data given the format? Or do I have to manipulate them so ...
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86 views

How to convert XYZ to from-to format with azimuth and dip information? [closed]

I have an Excel spreadsheet with header, survey, and assay drill data. Header data contains hole ID, location coordinates, and length. Survey data contains related downhole survey with distance, ...
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1answer
31 views

Looking for data to create contour lines at close range

This is my first post here and I'm new to GIS and I'm not massively even sure what I'm asking, so please be gentle! I'm attempting to learn QGIS through self-study and my idea is to take on a few ...
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1answer
58 views

Seeking dataset to create reproducible ArcPy example for ArcGIS Pro

I would like to create a reproducible example for ArcPy (for ArcGIS Pro) and cannot locate any example feature classes or rasters that come with installation. I am looking for something like the ...
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1answer
163 views

QGIS and use of Python/R [closed]

I am very new to spatial econometrics. I have two quick questions about QGIS. Is QGIS Python powered? Do I need to learn Python for QGIS or knowledge of R will be sufficient to use QGIS? I don't know ...
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124 views

Up-to-date South Korea level-1 administrative boundaries following land reclamation

Because of land reclamation, South Korea's western coastline changes regularly and data is regularly outdated. For example, GADM shapefiles describe boundaries prior to the development of Songdo. How ...
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1answer
30 views

Getting my data to be focused on one state

I have a map I'm working on for a final project and I'm a bit stuck as what to do moving forward. I have a map I'm making for forest fires and the type of tree in that area and I'm trying to get it ...

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