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Questions tagged [gadm]

GADM is a spatial database of the world's administrative boundaries for use in GIS and similar software.

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1answer
140 views

Where can I find correct shapefile for Montenegro municipalities?

I downloaded a shapefile for Montenegro from https://gadm.org/download_country_v3.html and created a table in PostGIS using shp2pgsql. The table has column geom of type geometry which is a ...
3
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1answer
154 views

Why don't the GADM Admin 1 boundaries for New Zealand line up with Regional Councils

I need a dataset of admin 1 boundaries for many countries, but particularly Australia and New Zealand. Using the current 3.6 boundaries from GADM, they seem to depart from the available Regional ...
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1answer
242 views

Country border coordinates with GADM and R [duplicate]

I have loaded the sp library in R and the rds file for a specific country (see here), now how can I extract the list of coordinates from this object? When I ask for the names of the object, the ...
2
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1answer
4k views

One shapefile for African continent containing counties/regions?

I use R to do my geo stuff with two limitations. First, I'm pretty new to all the geo stuff, and second I got lost while searching for a shapefile. I'm looking for a shapefile that contains all the ...
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1answer
299 views

Extraction climate mean values from GADM and WorldClim (Finland) using R

[Working with R 3.2.2] I am trying to extract climate mean values country by country from GADM and WorldCLim (www.worldclim.org). The code I am using is the following one: #Install necessary ...
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1answer
233 views

Is a United States City considered an Administration Level 3? Why or why not?

I am trying to get shape files for all of the worlds admin levels, but also their localities. If you are familiar with the Google Places API, you will notice that they have Country, Admin level 1, ...
1
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1answer
641 views

Shapefile of England, excluding London

I originally asked this on Stack Overflow, but here was suggested as a better location. Where could I get a shapefile (or even better an R spatial polygon data frame) of the boundary of England, ...
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2answers
2k views

Why the shapefile of worldwide country boundaries is so large (>500 MB)?

I downloaded GADM administrative level 0 worldwide and it seems very simple file: 255 rows of polygons representing countries. But the size of the file is very large: >500 MB. Why it's happening? ...
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1answer
137 views

GADM Phillipines data won't align to WGS84

I'm currently working with several datasets in QGIS that lay 100% perfect when I match it on Google Earth using its inter-app plugin. However, when I load administrative regions from GADM, the entire ...
0
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1answer
105 views

Carto DB city border polygons issue?

I want to visualize some statistical data about my country and I'm using the CartoDB geocoder. I've city names and I want to see cities as polygons but CartoDB says it has no polygon data, it can only ...
3
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0answers
270 views

Keys for merging US state/county ANSI's with GADM Unique identifiers?

I've got county-level data from USDA NASS, and I want to merge it with gridded climate data. A preliminary step is the associate the counties with the coordinates of their centroids. If I merge by ...
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3answers
943 views

Where can I find Colombia municipality geometries?

I'm looking for shapefiles (or some similar format) of Colombia's municipality boundaries. Wikipedia has a map that seems to be correct and which matches another dataset that I will eventually be ...
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1answer
117 views

Optimizing shapefile lookup time?

I have a ~1GB shapefile which is running circles around a ~5MB shapefile when it comes to feature look-up time (using Python, with GDAL): def check(name, lat, lon, attributeFilter:'SQL Query'=None): ...
1
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1answer
429 views

Extracting 1st level boundaries from GADM worldmap in QGIS? [closed]

I need a world map, broken down to GADM 1st level. The obvious way would be to download all single country .shp files and merge them. But that is far too tedious of course. I tried the dissolve ...
2
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1answer
637 views

Getting SHP or SVG from GADM subdivisions within Guyana?

GADM is a high-resolution database of country administrative areas. I have downloaded the whole world distribution (it is composed of several dBase III files and a big .SHP file). I am trying to ...
4
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1answer
953 views

correct projection of GADM data

I'm trying to use a map of Austrias districts from the GADM project. The Shapefile can be found here: AUT_adm.zip (All other formats provided by the project appear exectly equal.) The coordinate ...
1
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1answer
153 views

Where to find administrative L-2 polygons under open license?

NaturalEarth provide L-0 (countries) and L-1 (sub-division) shapefiles, but no L-2 (sub-sub-division) shapefiles. GADM.org provides L0 to L-5 data, and have a pretty good coverage for L-2 (sub-sub-...
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2answers
2k views

OSM administrative polygons : what is the current worldwide coverage?

Does OSM have a summary view of its administrative polygons coverage worldwide for each administrative level ? NaturalEarth have Countries (L0), and subdivisions (L-1) with complete (100%) coverage. ...
2
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1answer
174 views

Misaligned GADM shapefiles and the NE dataset

I am very new to using GIS programs, so please excuse me if this is a trivial question. I'm having the following problem: When adding a GADM shapefile layer for Uganda onto the Natural Earth set of ...