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Questions tagged [latitude-longitude]

Angular geographic coordinates that specifying the north-south and east-west positions of locations.

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Reading MSG Native(.nat) file with satpy

I am trying to read an MSG (Meteosat Second Generation) file given in the native(.nat) format using satpy. I tried using: import numpy as np import os from satpy import Scene import matplotlib.pyplot ...
The Emerging Star's user avatar
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Single value lat/lons from CDS API when selecting doing sub-region extraction

When I do the sub-region extraction from the CDS API, my netCDF file does not contain the subregion values, it only contains values for 1 data point (the NW corner of my bounding box). My request is ...
Alya Bolowich's user avatar
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How can I define an Area of Interest a certain distance from a set of coordinates on the Web Soil Survey website?

I'm trying to help automate a sequence of actions that involves downloading soil data for a specific area of interest at https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx. The tool allows ...
Starnes Student's user avatar
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Getting the right surface area raster layer

I am calculating the surface area of a raster file and even though I have tried to put it in all sorts of projections it still shows dg2. I have now used the projection equal earth greenwhich which ...
Isa Damen's user avatar
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Finding a slope of greater than 6 degrees in Google Earth Engine

I'm trying to find areas deeper than 200meters and with slopes greater than 6 degrees on the ocean floor and I'm having trouble figuring out how to determine them. So far I have: var dem = ee.Image(&...
Nick Carrick's user avatar
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Newly added CSV file is unavailable in QGIS

In QGIS I am trying to add a CSV file to my project that only has a location and coordinates. Whenever I tried to load the file into QGIS the layer was unavailable. How can I fix that? Here is my ...
Amikiri's user avatar
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Autolisp & JavaScript convert Lat/Long to X(Easting) Y(Northing)

I'm wanting to create a BricsCAD script which takes Lat/Long WGS84 and converts it into the BNG Easting/Northing Similar to Grid Reference Finder, Webapps BGS Converter & Google Earth's long/lat ...
Josh's user avatar
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Importing Lon/Lat points from CSV file into QGIS

I am working on locating sites in Guinea for a National Parks Infrastructure Project. I have a chart with Long/Lat and I thought I might import them by adding a Delimited Text Layer using a CSV file ...
Cresolus Climate Responsive De's user avatar
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Is there an established mapping from longitude-latitude to the face of a icosahedron?

Given a longitude and latitude, I’d like to map that to the face of an isocahedron projected onto the sphere (earth). The orientation of the isocahedron doesn’t matter so if there is a convenient or ...
gph's user avatar
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Latitude inversion when opening nc file with nc_open

I'm facing an issue when opening a nc file in R using the nc_open function. The images contained in this nc file are inverted in the latitude axe. This could append because I'm working in the South ...
Aurélien Lengrand's user avatar
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ArcGIS Online will not map lat longs!

I'm trying to "add new" hosted feature layer from either a .csv or .xls in ArcGIS Online. But, I cannot for the life of me get it to plot the XY data! I'm at a loss because I'm used to the ...
Heather's user avatar
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Heatmap using latitude and longitude coordinates

I have a very large dataframe of +10Million rows containing information about route points of vessels in maritime traffic. I wanted to create a heatmap to highlight the areas with higher traffic flow ...
Coki_23's user avatar
3 votes
1 answer
120 views

Making trivial GeoJSON file with Feature collection of points

I'm trying to generate a GeoJSON file with a feature collection of points to render in QGIS, however, when I load my .geojson file I don't see anything. To figure out what's going on, I've tried to ...
quant's user avatar
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Perform a Mann-Kendall test on grd dataset downloaded from imd portal

I have a grd file downloaded from imd portal, now I want to perform a mann kendall test on this grd dataset. But I am not getting how to read grd file in Python and how to perform Mann-Kendall test, ...
Kadali Lakshmi Nirmala's user avatar
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QGIS geometry definition x field y field drop down menu not working?

I am trying to create contours with QGIS. This is my first time and I'm following this video: https://www.youtube.com/watch?v=L4Rp318vM1Y&ab_channel=Geocarto I got to 3:05 where I am to put the x ...
FirstTimerHelp's user avatar
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How to export all Latitude - Longitude values of each pixel included in the area covered by geometry at specific resolution? - Google Earth Engine

I am able to add a band of lat - lon in my image in google EE with the code: var imgwithlonlat = meanImage.addBands(ee.Image.pixelLonLat()); Now I want to store all these values in a list and export ...
Charmi's user avatar
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Create a global grid in kilometer in Python

What is the best way to create a regular squared global grid in kilometer ? Creating it in degrees is easy but i would like to specifiy the input mesh size in kilometers ? I was thinking using ...
Magic Mushroom's user avatar
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Doing high-fidelity trilateration in R [closed]

Is there a way to do high-fidelity trilateration in R (naturally, I'll be using latitudes and longitudes)? I'm not looking to solve a specific problem, but rather identify tools that are capable of ...
Aegis's user avatar
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2 answers
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What is the right projection to use? [closed]

I am working on an application which uses lat and lon coordinates. The coordinates I'm working with can be found all over the globe. For some reason I have to do some operations in meters, buffering ...
Magic Mushroom's user avatar
1 vote
1 answer
91 views

Why are latitude not part of the UTM system?

I am trying to project long/lat coordinates to UTM in R (actually I have a script that works) but I'm curious about the zone argument. Here is the script I have. It uses the spTransformfunction from ...
Boussens-Dumon Grégoire's user avatar
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Finding latitude and longitude limits for a sub-region for CDS Copernicus Climate Data

In order to extract climate data from Copernicus, there's a Sub-region extraction section that allows one to extract data from a region within specific coordinate limits. I am trying to use the Sub-...
Jadon Wong's user avatar
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417 views

Getting latitude and lontitude from TIF file using rasterio

I refer to link and want to get latitude and longitude from .tif file using rasterio. My code is the same as the answer: with rasterio.open(path) as src: band1 = src.read(1) print('...
wxystudio's user avatar
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Spatial autocorrelation of car crashes and traffic safety complaints in python

I am admittedly new to spatial autocorrelation and I did this research myself so apologies if this is completely noob behavior. I am trying to determine if there is a correlation between the location ...
Bar Zavin's user avatar
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83 views

How to find long/lat (in Python) from a GeoTIFF that does not have CRS

I have a GeoTIFF file that in Python the dimension is (9991,10439). I need to know the long/lat information for each pixel but the problem is the CRS is None for this file and when I try to create a ...
Ari's user avatar
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How to make TIFF output file with coordinate reference system (CRS)

I am working on TIFF files to produce the median matrix for them, I am using the following Matlab code for that. How I can make the output as .tif while keeping the coordinate reference system (CRS)? ...
user232920's user avatar
3 votes
1 answer
140 views

Set coordinates as default value

In PostGIS, how to set default value with st_x or st_y ? I want to populate automatically two fields with lon and lat when I create a point.
pasqal's user avatar
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Get multiple zipcode from each district latitude and longitude on Python

I am trying to create a column for Zipcode from Latitude and Longitude column. I have seen multiple answers in StackExchange, all are for creating one zipcode from zipcode latitude and longitude. But ...
Ash1's user avatar
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1 answer
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Latitude/longitude from PostGIS table with coordinates transformation not working

I have a PostGIS (PostgreSQL 13/PostGIS 3.1.1 on Debian 11.7) table with points in EPSG:6708, so it's plain coordinates (data from Northern Italy). I need to get lat/long coordinates, so I do: ...
Luca Pauluzzi's user avatar
3 votes
2 answers
268 views

Selecting feature by coordinates from the Vector Tile Layer using PyQGIS

I have a vector tile layer in QGIS, loaded from: https://cdn.kadastr.live/tiles/maps/kadastr/land_polygons/{z}/{x}/{y}.pbf. How to select a single feature of this layer by coordinates, in PyQGIS? I ...
Стьопа Брич's user avatar
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What is a notation for a "diagonal" on a globe?

Is "diagonal" even the right word here? We have latitude and longitude to create a sort of grid and when combined make a point. Both latitude and longitude individually span a line around ...
groovenectar's user avatar
3 votes
1 answer
175 views

Turning table with lat and long columns into point layer in QGIS

I have a table as a layer in QGIS. It includes two columns: "Lat" and "Long". I would like to use these as geometry columns. How would I do this without saving and reloading a ...
Garbage Panda's user avatar
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Add admin levels to corresponding lat/long

I am fairly new in using GIS, I have a dataset with lat/long references, corresponding to points throughout the world. I would like to add the corresponding admin1,2 and 3 levels. I've been trying ...
KSB's user avatar
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Converting UTM coordinates to lat/long

I have a dataframe which contains easting and northing columns from Sweden which cuts across 32 to 35 UTM zones library(oce) sweden_Utm_converted <- utm2lonlat(Sweden_MM$east, Sweden_MM$north, zone ...
Stone Bee's user avatar
1 vote
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147 views

How to find the coodinates of a new bounding box from four circles present with known radius around the vertices of an existing bounding box [closed]

I have a bounding box which I have created. I know the lat lon of the four vertices of the box. On these vertices I have created a buffer circle of radius 10m and now I want to calculate a new ...
sneha_jerin's user avatar
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47 views

Recenter projection of world map in QGIS [duplicate]

I'm a beginner in QGIS. I would like to use world maps with different longitudes in the centre for my geography lessons. I am trying to create world maps centred on different longitudes (others than ...
Ole Joerss's user avatar
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198 views

Calculating latitude and longtitude using yaw degree and distance

I have some drone videos and metadatas. I would like to find latitude and longtitude of center of image, if it is possible any point. To do this, I thought I can use altitude and pitch degree. Because ...
Piko's user avatar
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1 answer
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Project EUMETSAT Geostationary Rapid-Scanning-Service Pixel to Lat/Lon

I've downloaded EUMETSAT's RSS product (rapid-scanning-service of the northern hemisphere) - I'm interested in band 9 (IR10.8) - and I can download them as .nat (native) file or GeoTiff. Whether I ...
Peter Ilfrich's user avatar
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How can I consolidate / deduplicate processed AIS data from different stations?

Context I have received processed AIS data from different AIS receiver stations from which I need to construct trajectories for each vessel. The data has the following columns: timestamp vessel ID ...
Saaru Lindestøkke's user avatar
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128 views

Understanding Longitude

I am a software developer and I am building an app that involves working with Longitude and Latitude. I've been surfing the web to understand the subject well but still have some issues with it that I ...
Eslam's user avatar
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541 views

Converting .shp polygon from EPSG:4326 to EPSG:3857

GIS newbie at a loss for solutions here. I've drawn and mapped out a shapefile with 51 features in QGIS based on administrative region data which has been in EPSG:4326. I would now want to convert ...
eulinean's user avatar
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GPS lat/lons are off by about a mile

I have some old data from a flight that was done, it has a series of lat/lons for each datapoint. I've plotted these into Google Earth Pro and I can see that they are plotting about a mile west of ...
JJ5's user avatar
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2 answers
273 views

Convert centroid data to lat/long coordinates

I have a geoJSON file from Alameda County, California, that says it is based on "crs": { "type": "name", "properties": { "name": "urn:ogc:def:crs:...
Zachary Russell Heineman's user avatar
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116 views

Lat/Long coordinates from measured depth

I have a set of perforation data along a well bore that just includes measured depth (in feet). I also have the directional survey for the same well that include survey points (measured depth in feet)...
Carole's user avatar
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1 vote
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177 views

Convert unit vector from body to ECEF coordinate system

I have an Android phone using local coordinate system as shown on the picture: "Азимут" is azimuth. "Угол места" is elevation. "Крен" is roll. Azimuth is measured from ...
Maxim's user avatar
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5 votes
1 answer
107 views

Converting coordinates from cartesian to geodetic in QGIS

I have a problem with my layer attributes in QGIS, every time I add $x and $y coordinates as attributes, they are always returned to me in meters, while I would need this data expressed in degrees. I ...
Luke's user avatar
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1 vote
1 answer
75 views

How can I found all db table records within radius JSON field in PostGIS database

I have table polygon_versions with geo_json field of type json. DB fiddle: https://dbfiddle.uk/mzsp-4tg How can I select all table polygon_versions records within radius of 20 kilometers from geometry ...
Taras's user avatar
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2 votes
1 answer
162 views

Importing latitude and longitude data for UK

Data I have a set of locations for weather stations (download easily from here: https://archive.ceda.ac.uk/cgi-bin/midas_stations/search_by_county.cgi.py?county=SHROPSHIRE&minyear=&maxyear=). ...
Melanie Baker's user avatar
1 vote
0 answers
1k views

Get height above ellipsoid (HAE) of the surface of the Earth given a lat,lon coordinate?

I am looking for a way to compute the approximate HAE (height above ellipsoid of WGS84) of a point at the surface of the Earth at a specific latitude and longitude. Is there a simple way to get this ...
Lelouch's user avatar
  • 111
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1 answer
77 views

Use Georeferencer GDAL plugin on QGIS to create a GeoTIFF if the latitude and longitude boundaries are known for a raster image

What I have/know: I know the latitude and longitude boundaries for an image I am using the EPSG:4326 projection QGIS with the Georeferencer GDAL Plugin Installed Is it possible to create the ...
Douglas.Sesar's user avatar
0 votes
1 answer
262 views

Negative Easting while converting long/lat to UTM zone

I have a dataset of some points in python which have longitude and latitude for each of them. Because they are located in different UTM zones, when I want to convert them to UTM, I will get some ...
user220559's user avatar

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