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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8 views

Get detailed list of water basins programmatically [closed]

I am a data scientist and I have never worked with cartography data I am looking for a lake, with one or more islands inside, within 150km from my city, to reach after a hike in hill/mountain. I would ...
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21 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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16 views

Can you improve upon my method for grouping data points by proximity and other criteria? [closed]

I have a dataset containing points which I have overlaid onto a map of the study area. These point represent sample plots from a study on plant species, which are distributed along a narrow coastline. ...
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Binned AIS data positions

Perhaps this is not the right SE site to ask this, but being AIS data what will be discussed here, I thought so; sorry if I was mistaken though! Now to the question. I have a huge dataset of AIS data ...
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1answer
25 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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9 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
19 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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25 views

How to cluster meteorological data

I want to apply the clustering techniques with meteorological data (Georeferenced data), and each cluster must represents a type of weather (sunny, cloudy,...), I try with some spatio-temporal ...
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30 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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18 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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13 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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26 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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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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Parsing Binary Lunar Terrain Data: Specifically PDS LRO LOLA GDRDEM .IMG Files [closed]

I'm looking to utilize and manipulate Lunar Terrain data for a project I'm working on. For some quick background, I essentially want access to as much lunar terrain data as I can get for a project ...
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37 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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Open premise TMS server setup

We have built a 3D terrain solution where we take in both images and height data in TMS format. We run our a multi projection system spanning over 2-20 computers, and 2 projectors per pc. The terrain ...
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19 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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39 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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29 views

Visualize GPS Geolocation data over time

I have GPS coordinates along with timestamp, and I am looking for a library that will allow me to visualize this data over time. Similar to how you would visualize a GPS journey on a map using Python. ...
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19 views

County list of Woodard's American Nations

I've been looking for county list of Woodard's map of American Nations, however, I only found maps of it and certainly as a beginner in the field, I am unable to transform this map into tabular list ...
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16 views

QGIS becoming unresponsive after I try and add (relatively small) layer

Each time I try and add a CSV as a delimited text file, I see this: The file is not large. Only ~2k rows and 462 kb. I've certainly uploaded larger files to QGIS and never had any issues. I've force ...
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1answer
22 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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17 views

Show data labels in Oracle Analytics Maps

Can anyone assist me in adding data labels in OAC (oracle analytics desktop ) Maps. The image below shows state names ,I have a similar requirement to add names to the city. I tried below json text ...
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27 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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27 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
38 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
71 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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13 views

USGS AppEEARS: Request Pending

Does anyone know how USGS's AppEEARS requests are being processed for downloading the data? I am trying to download Modis Lai data for a part of a region using shapefiles. Due to reaching max queue ...
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15 views

Having a shapefile count how many times it appears on a certain color of a .img

If I have a shapefile with points on it for Forest Fires and I want to see which type of tree the point is on, how would I go about that? I have the .img of each type of tree with a color ...
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1answer
27 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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42 views

Train/test split in QGIS

I have a polygon layer, which contains information about different classes and I am using it as training areas for supervised classification. Is there any way (like tool or plugin) in QGIS which could ...
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1answer
28 views

Sources for population density map of Europe

I want to make population density map for EU where I can show populations of people aged about 65yrs, where can I get a EU shapefile and population Excel file? Is there any EU shape file available ...
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1answer
40 views

Seeking a GNSS data to be use for my work [closed]

I would like to understand what GNSS is used for? Can I download it from the website and use it for my work? I am not familiar with it. Does it come with the GPS? Does it come with horizontal ...
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22 views

Identifying State Parks in the PAD-US dataset (Protected Areas Database)

I'm looking to map "State Parks," and I found this phenomenal, but complex database. Has anyone ever worked with the PAD datasets before? (or know any easier way to map State Parks?) In the PAD ...
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6 views

Satisfactory accuracy for a GEDI geo-locator

What level of accuracy should one expect from a GEDI geo-locator? I'm making a geo-locator for GEDI (similar to https://lpdaac.usgs.gov/news/release-gedi-finder-web-service/ ) and I'm wondering what ...
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1answer
50 views

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 ...
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2answers
88 views

Convert raster to CSV with lat, lon, and value columns

I'm looking for a process to convert ASCII gridded data (in this case 60min/1 degree gridded ASCII population data (GPW) from SEDAC: https://sedac.ciesin.columbia.edu/data/set/gpw-v4-population-count-...
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2answers
32 views

Looking for land value data for anywhere in North America especially for Florida [closed]

I am researching on road alignment optimization. The research goal is to find least cost road alignment between two given points, considering highway codes. One of major costs which I need to consider,...
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1answer
28 views

The length of Benoa bay of Bali island [closed]

Since Indonesia's spatial data infrastructure is terrible, how can I know the length in a kilometre of Benoa bay of Bali island, Indonesia? I tried to google it and shockingly I didn't get any ...
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40 views

Seeking Berlin groundwater shapefiles

I would like to know if any of you has shapefiles of Berlin? I have been using https://fbinter.stadt-berlin.de/fb/index.jsp but it doesn't allow the layers in shapefile format and also https://...
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50 views

Identifying NYC neighborhoods using zip codes?

I have a dataset that contains zip codes. I want to figure out the name of the associated NYC neighborhood. For example, I have zip code 10021 and I want to know 10021 is located in Upper East Side. ...
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38 views

What is the highest spatial resolution for coronavirus cases?

I understand that the JHU CSSE Dashboard became the watering hole for public health professionals and data science enthusiasts alike, and it visualizes the spread of novel coronavirus (SARS-CoV-2) ...
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1answer
65 views

Two persons working on same layer in QGIS

We are two people who need to work on the same layer in QGIS. For example one of us will work locally, the other one via a server connection. What do we need to keep in mind when it comes to data ...
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1answer
47 views

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') ....
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1answer
37 views

Background data ski areas

I'm trying to visualise a specific ski route. The sample is taken with a gps tracker in Obergurgl & Hoghgurgl, Austria. I am using QGIS for this assignment. I could insert the trace using vector ...
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1answer
198 views

Download GLDAS precipitation monthly 1 km resolution data by Earth-engine

Does anyone know how can I get GLDAS precipitation monthly 1 km resolution data by Earth-engine? Or maybe Earth-engine just process annual precipitation data by 0.25 degrees GLDAS product? Where is an ...
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1answer
47 views

Geodata from Website JSON direct in GIS software

I would like to load some geodata into to QGIS or ArcGIS. The geodata is on a Web page (restricted, so I can't can give you the link). In the Network dev tool is a GeoFeature with the JSON. I can ...
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1answer
49 views

Spatially join linestrings (which can overlap or not overlap) in R and provide output in a data format that I can add other variables

I am using R to exam road infrastructure. The sf dataset I am using is very granular e.g. for the same road two or three observations may exist that are differentiated by different coloured tarmac ...
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29 views

Seeking shapefiles of oceanic global climate zones (tropical/subtropical/temperate)

I need to make a map highlighting the marine tropical zone but could not find any shapefile containing that information. Some sites have lots of information on marine zoning (Marine Regions) but ...
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1answer
22 views

Excluding some columns in the attribute table for the public use

I am trying to post a feature service for an Open Data Hub site but want to exclude some columns in the attribute table for the public use. Is there a way to use a feature service but alternate the ...

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