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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1answer
12 views

How are GeoTIFF and JPEG created?

How are they related to raster data and what GIS software is capable of proccessing these two image formats?
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0answers
21 views

Making one to many to many Attribute Relationships

I am making relationship between three tables in QGIS 3.8 version ("ACTIVE SITE","FUEL_TANK","REFUEL"). The primary key and the foreign key for the Tables are as follow the primary keys are "ACTIVE ...
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0answers
13 views

Seeking MODIS Point Collection with more specific Time Of Day for Google Earth Engine?

I am trying to find a more specific time of day (hourly data) for MODIS satellite imagery at specific feature points across the United States with Google Earth Engine, and I am only finding metadata ...
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3answers
15k views

Is it possible to export data from google maps?

I plan to create a map using food-restaurant locations in Manhattan, NY. Since there is a large quantity of densely located restaurants it would be a pain to collect it by hand. Is it possible to ...
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3answers
37 views

Seeking data for São Tomé and Príncipe?

I am a total GIS beginner and have been trying to make some simple maps of the nation of São Tomé and Príncipe using QGIS and publicly available data. The readily available data I find comes from OSM. ...
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0answers
23 views

Seeking high resolution real-color (RGB imagery) dataset?

Specifically interested in the the South Florida region, USA. The aim is to pull up high quality aerials to detect manholes and wellheads from space! These things can typically be half a foot to a ...
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1answer
39 views

Copyright of using geospatial data from the internet [closed]

I am curious about what kind of copyright does geospatial data that can be downloaded from the internet have. For example, if I want to use data like OSM data, satellite imagery data etc to make ...
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1answer
67 views

Seeking accurate WMS server for Kenya?

I am looking for an accurate Map for visualizing positional data collected in Kenya. Right now I am using EXOMAPS (https://tiles.maps.eox.at/wms), in particular, a Sentinel2 cloudless view, but I am ...
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7answers
4k views

What iOS (iPhone/iPad) app from the App Store can I use to collect data?

What iOS app from the iTunes App Store can I use to collect data (mainly points, perhaps photos) and later import them into my GIS? I am mainly interested in an out-of-the-box solution, not develop ...
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3answers
115 views

Daily temperature data portal globally

Is there any climatic portal for downloading historical climatic data ( Rainfall & Temperature) on a daily basis or at least on a decadal basis? PRISM gives only for US regions.
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1answer
17 views

Seeking SA Suburbs GIS shapefile?

Can you provide a link to the South Africa Suburbs shapefile or specifically to the Umgungundlovu District Suburbs shapefile? I have browsed the demarcation board but it is not available on http://...
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1answer
39 views

Where can I find global vegetation biomass or carbon stock spatial data? [closed]

I need yearly data of vegetation biomass and NPP per hectare.
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1answer
17 views

Netherlands census data by municipality (gemeente)

I am looking for Dutch Census data (period 2012-2019), aggregated at the gemeente level (municipality), covering basic population statistics (number of people, gender, age, ethnicity, etc). The ...
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0answers
17 views

Download traffic signs as geodata (e.g. GeoJSON) from OpenStreetCam

Do you know any way to download traffic sign data (stop signs, give ways etc.) in a geographical format (KML, GeoJSON, Shapefile...) from OpenStreetCam?
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1answer
534 views

Searching for UN regions/sub-regions shapefile

for a visualisation project I need the boundaries of the UN regions as defined here : http://unstats.un.org/unsd/methods/m49/m49regin.htm That's 21 polygons for the sub-regions. I have been looking ...
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10answers
61k views

Where can I find Canadian postal code geometries?

Where can I find the shapefiles for Canadian postal codes?
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0answers
22 views

Recognized, calibrated test points for a rangefinding function?

I'm trying to find out if there are scientifically accepted calibration points to measure the effectiveness of a geodetic distance finding function. So far I've been using the listed latitude / ...
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3answers
10k views

Complete list of UK postcodes plus their city, county, uk country

Is there a free data set of all current UK postcodes (about 1.7 million-ish) plus their city name, county and UK country (e.g. Liverpool, Merseyside, England) and ideally lat, long, east, northings?
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1answer
111 views

Pre-1998 Indonesia Kabupaten (Level 2) Shapefile

I am trying to find some "old" (pre-1998) Indonesia boundary files at the Kabupaten and province levels. It is important that they are pre-1998, or at least dating before the peak of the secession of ...
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2answers
285 views

Test data for geocoder

Can you suggest good international test dataset for geocoder testing? Best if it would have unstructured and structured addresses, and coordinates, but even significant number (thousands, millions) of ...
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1answer
30 views

Seeking list of geodetic benchmark locations for all of Canada? [duplicate]

Does anyone know where I can find a list of geodetic benchmark locations for all of Canada? I am looking for a few specific control monuments in Arctic Canada with accurate coordinates
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3answers
8k views

Locations of Geodetic Survey Benchmarks in Ontario?

Does anyone know where I can find a list of geodetic benchmark locations for Ontario? (If a list even exists that is...)
3
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1answer
825 views

Global POI database in JSON format?

Does anyone knows if there is a flat file database of points of interest in a json format somewhere available for download? If not how would one set off to create such a database? Are there any tools ...
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1answer
634 views

Downloading OpenStreetMap and Imagery to ArcGIS Collector for Offline Use?

I am traveling to Costa Rica and would like to use Collector with my cell phone to record some information in a feature class. I would like to find some 1m or better imagery to put in a web map that ...
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1answer
2k views

Seeking GIS data about NYC's combined sewers (CSO) that's free to use? [closed]

I've located two sites that display the data that I'm looking for, but both lack exporting functions. OASIS NYC and maps.nyc/gov Otherwise I can't locate this data anywhere in a format I can use in ...
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2answers
79 views

Seeking historic aerials for some areas in Dona Ana County, New Mexico?

How do I find several historic aerials from the mid-1970's or early 1980's and where can I download them? I would like them to be free of charge.
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0answers
23 views

Seeking DEM for Northern England to produce slope map?

I'd like to make a slope map of northwest England (the Yorkshire Dales, to be exact) that can be used with a 3D viewer such as Google Earth to identify slopes that are steep enough for paragliding. A ...
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2answers
2k views

Seeking “Official” delineation of North American mountain ranges?

I need to subset mosaics of remotely sourced data to the extents of several prominent North American mountain ranges, starting with the Sierra Nevada. After searching for the boundaries of the range ...
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1answer
30 views

Seeking polygons that map out land zone type (ie Residential, Industrial, Commercial) in UK?

I'm looking at displaying the commercial and industrial areas of the UK on QGIS so that I can do some work on them. I'm not looking to add my own data to it, merely find a shapefile or geopackage or ...
1
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1answer
43 views

Seeking Shapefile of World countries with national currency attribute?

I looking for Shapefile of a World countries having an attribute of the national currency, do you know how can I get that ?
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0answers
14 views

Need mountain ranges of North America polygon shape file for QGIS [duplicate]

Can anyone recommend a polygon shape file of the North American mountain ranges, and the website I can download it from? Something like the attached image, except I don't know where the attached image ...
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2answers
2k views

Seeking Elevation Data for Scotland? [closed]

I have been searching for quality elevation data for the entire Scotland but I have not succeeded yet. Do you know where to get the data in Raster or Vector formats? Accuracy is very important as ...
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1answer
1k views

Seeking free elevation data for Thailand/Bangkok?

I am in the process of writing my thesis on flood hazard preparedness and forecasting in South East Asia, specifically Thailand. My analysis requires a medium resolution (even better, high resolution) ...
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5answers
2k views

Simple way to collect the Sentinel data of a given ROI?

If you wanted to collect all Sentinel satellite data for a given region of interest (ROI), say, for a given day or time frame - is there any simple way to do it? That means: Without having to download ...
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0answers
9 views

R Tmap Package: Finding Population Dataset of provinces in Europe? [migrated]

I applied the following function of the R Tmap package: library(tmap) data(NLD_muni) NLD_muni$perc_men <- NLD_muni$pop_men / NLD_muni$population * 100 tm_shape(NLD_muni) + tm_polygons("...
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2answers
96 views

Source for regularly updated ENCs?

Is there a reliable source for Electronic Navigation Charts, where they get updated regularly? I am able to find for American waters on the NOAA website, but not for other regions.
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16answers
94k views

Seeking full list of ISO ALPHA-2 and ISO ALPHA-3 country codes?

I'm searching for a full list of countries with their country codes. Like on this page (need full and valid): http://www.nationsonline.org/oneworld/country_code_list.htm
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1answer
34 views

Seeking TopoJSON map of Chinese provinces which includes Hong Kong, Macau and Taiwan?

I have a TopoJSON map of China which is working well in d3.js. However, it is essential that I add Hong Kong, Macau/Macao and Taiwan to the map, but they are not included in the TopoJSON file. I have ...
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0answers
29 views

Getting updated list of US Zip Code with latitude and longitude?

I have the old list of US Zip Codes which is missing some of the zip codes. How can I get the Updated list of Zip Codes in CSV format?
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1answer
53 views

Seeking shapefiles for regions? [closed]

We are looking for shapefiles/geojson for below regions: Africa Eastern Africa Western Africa Northern Africa Middle Africa Southern Asia Southcentral Asia Eastern Asia Southeastern Asia Western ...
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0answers
19 views

Free GIS data that doesn't require attribution for printing on products

I'm keen to make some products to sell with map graphics printed on them. As these are physical products (eg tshirt etc) I don't want to include the attribution in the design. Is there a good source ...
9
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1answer
624 views

OpenStreetMaps offline tile packs

Is there a place where I could download OpenStreetMaps tile packs for the united states? I would like to have offline access for the whole country.
0
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1answer
107 views

Looking for an Elko County Nevada Land Ownership Shapefile

I am looking for a Nevada Land Ownership shapefile. County and state GIS don't seem to have anything beyond pdf. Are there any public or commercial avenues to acquire land ownership in Nevada? I'...
0
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2answers
119 views

Data about administrative subdivisions capital cities

I am looking for data about second or third rank administrative capitals in every African country (the administrative centre of a country territorial subdivision), but I can't find anything close to ...
9
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8answers
10k views

Comprehensive database of all cities/towns in South Africa?

The title says it all really - I'm looking for a comprehensive list/database of all cities/towns in South Africa. I know about these guys: http://www.afrigis.co.za/, but they're just not getting back ...
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1answer
35 views

Seeking shapefiles of buildings in Qingdao, China? [closed]

We are starting a new esearch project in China and I've been looking for a while and the closest thing I can find is buildings of Beijing. But I need Qingdao not Beijing. It seems like I will have to ...
0
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1answer
145 views

Looking for a complete list of cities by state, with area code

Our company is working on moving our sales assignments from area codes to ZIP codes, and we need some kind of dataset to help move existing assignments to the new system. Does anyone here know where ...
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2answers
195 views

Free Map matching benchmark data

I have my own map matching algorithm and I want to compare it's accuracy to some other algorithms. Is there a free trace dataset that has a confirmed match for each trace (ground truth), so I can ...
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1answer
446 views

Getting historical administrative boundary GIS files for India?

I am currently working on a project for which I need to get GIS maps of India at a district-level in the 80's and 90's. India's district and state boundaries have changed considerably over the time ...
1
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2answers
76 views

Seeking free public LIDAR data of road in LAS format?

I am currently working on LiDAR point cloud road marking extraction. Please help me to get relevant public dataset in LAS format? Sample data is as shown in the image below: Data without original ...