Questions tagged [wgs84]

WGS 84 (that spelling) is the name of an ellipsoid (EPSG::7030), the name of a geodetic coordinate reference system (EPSG::4326), and the alias of a datum (EPSG::6326), official name World Geodetic System 1984. WGS84 (no space) is the alias of the ellipsoid (EPSG::7030). WGS 84 is most commonly used to describe the coordinate reference system.

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Is there any reason to use or know anything other than WGS 84 (SRID 4326) or Web Mercator (SRID 3857)?

I'm new to GIS and learning about SRIDs. Are there still other relevant or commonly used SRIDs?
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Why do I get coordinates in QGIS3 as nnnnnn; nnnnnn instead of Lat/Lon when I upload a shapefile supposedly projected in WGS84 [duplicate]

I received a couple of shapefiles made in France supposed to be projected in WGS84. When I upload them to QGIS3, it recognizes them as WGS84. However, their coordinates are displayed in a strange ...
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Zonal Statistics - polygons and rasters with different projections

I know that there are many many posts about this type of topic already, but all solutions did not work out for me so far. I have a shapefile with polygons, which is described here and can be ...
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Is the Geometry(4326) an alias for Geography datatype?

The main reference about Geography datatype seems docs/using_postgis_dbmanagement: Prior to PostGIS 2.2, the geography type only supported WGS 84 long lat (SRID:4326). For PostGIS 2.2 and above, any ...
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Definition of zoom levels used by Cesium quantized mesh terrain tiles?

Context I am not able to figure out the definition of Cesium's quantized mesh terrain tiles, as specified here: https://github.com/CesiumGS/quantized-mesh I wonder if it's the same definition (or not) ...
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How to get real lat lon values (degrees) of line geometry in QGIS?

I have a line layer in QGIS. The project CRS is WGS84 (4326) and the layer CRS too. The goal is to have the coordinates of the line nodes in a csv - one row/field per line. Now I tried copy/paste of ...
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Splitting ASCII grid files into WGS84 GTiff chunks with sliding bbox defined in degrees minutes seconds

Context I have (many! i.e. >> 500) ASCII Grid raster files given in EPSG:2154, which headers look like (as an example): ncols 1000 nrows 1000 xllcorner 939999.5000 yllcorner ...
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Conversion of (lat, lon, height) to another CRS with pyproj results in no transformation

I have latitude, longitude, and ellipsoidal_height measurements in the IGS14 CRS. I want to convert/transform/project this data into latitude, longitude, and ellipsoidal_height measurements in the ...
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Remaining gaps in SoilGrids250m v2

I am following up on Handling data gap in new SoilGrids datasets which is a similar question about a previous version of SoilGrids250m v2. There still appears to be gaps in northeastern Russia in the ...
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KNMI MSGCPP geoview to WGS84

I would like to transform KNMI MSGCPP geoview netCDF file to WGS84 netCDF file with gdal_translation and gdalwarp. I got error msg. I shared the geoview netCDF file (140 MB): https://z001.s3....
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Difference between EPSG:4326 and EPSG:32637?

I'm exporting data from a program into a .csv for RStudio, which will then go into ArcMap. I haven't done this before and I've been given two projection options which are: WGS 84 [EPSG:4326] WGS 84 / ...
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Comparing two point clouds, one in WGS84 and the other in ECEF

I'm really a newbie and this task seems over my head. Suppose you have one cloud from LiDAR (a LAS file) with coordinates in WGS84 and another cloud, obtained from structure-from-motion, in ECEF. They ...
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Why does pyproj give a different point location compared to ordnance survey when I convert from WGS84 to EPSG:27700 (BNG)

I get different results using 2 methods to convert co-ordinates from WGS84, epsg:4326 to BNG (British National Grid) epsg:27700. The differences in the plotted eastings and northings values are very ...
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Converting WGS_1984_Web_Mercator_Auxiliary_Sphere to a lat long raster

I have a dataset I downloaded with the following attributes shown with gdalinfo. How can I convert it to a lat long based raster file? Driver: GTiff/GeoTIFF Files: d2wesri.tif Size is 1300, 900 ERROR ...
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Can't correctly display GeoJSON on D3

I'm trying to display some GeoJSON files with D3. The code is pretty simple: import europe_data from "./data/europe.json"; import areas_data from "./data/LV.json"; /**********************************...
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What is MHHW Mean Highest High Water, in terms of datums/coordinate systems?

I'm modeling sea level rise, which entails adding the projected sea level rise for a specific decade to the current MHHW height (I think. I am new to this.) My question is very general--what is MHHW ...
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VDatum to transform MHHW to WGS84 error code

I am using VDatum vdatum.noaa.gov/ to transform the vertical coordinates of a surface from MHHW to WGS84. I am getting the error code below: Exception in thread "C:\Users\User\Desktop\Honduras\O_file....
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Convert MHHW (mean highest high water) to WGS84, or NAVD88

I am trying to create a tidal surface to use in mapping sea level rise. My first step was to create a raster surface from points in ArcGIS. I then used VDatum from NOAA to transform that surface from ...
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Account for cell size differences in WGS 84 rasters

My data I downloaded climate data from the WorldClim website, provided as rasters at a global scale using WGS 84 and various resolutions. I'm using the 15min resolution and I focus on Mediterranean ...
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Modified British System “South Italy Zone” grid - wide residual error georeferencing maps in ArcMap or QGIS

In accordance with the information of a previous thread on this platform, I am trying the georeference some war maps of Italy within the South Italy Zone grid of the Modified British System. I work ...
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Results of gdalwarp from UTM32 to EPSG:4326 are not aligned?

I've a Sentinel 2 jp2 in UTM32 with this metadata: Files: T32UQD_20200421T102021_TCI_60m.jp2 Size is 1830, 1830 Coordinate System is: PROJCS["WGS 84 / UTM zone 32N", GEOGCS["WGS 84", ...
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Are WGS84 LatLon coordinates and EGM96 LatLon coordinates the same and difference for [LatLonEle] is elevation only?

Does WGS84 LatLon coordinates and EGM96 LatLon coordinates are the same? Is difference for [Lat;Lon;Ele] is in elevation only? If I have, for example, a [Lat;Lon] point in WGS84, I can take ...
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Shapefile is saved in EPSG:4326 despite being set to EPSG:32651 via geopandas

This is the code def loadPoint(): df = pd.read_csv(r'C:\Users\imper\Documents\new_GISfiles\earthquakesPH\emscPhilippines2008to2020_lonLat.csv') geometry = [Point(xy) for xy in zip(df....
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Difference between EPSG:4236 and EPSG:4326?

I know that the EPSG 4326 is the WGS84 (standard) projection, and is the projection that I am using in my code, but by a mistake, I have wrote 4236 and this worked in the code. The question is what ...
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With respect to what “normal” is geodetic latitude defined for the WGS84 elliptical model of the Earth?

There are some features of geodetic latitude specifically with respect the WGS84 that I do not quite understand. In short: With respect to what "normal" is geodetic latitude defined for the WGS84 ...
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If a ship gave a mayday/SOS call out to a coast guard and sent the lat/lng coordinates where they needed to be rescued, is WGS84 implied or assumed? [closed]

Lat/Lng coordinates don't necessarily mean anything without knowing if it's WGS84 vs. something else. If a ship/crew/captain were to send an SOS call out with just coordinates, do they have to say ...
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MapWinGIS Create Buffer Using WGS84 Lat Long Coordinate System

I am using MapWinGIS with c#. I am trying to create a buffer for a polygon that has WGS84 decimal degree reference system, but it never get displayed. Here is my code: // Form load var gp = new ...
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Using GeographicLib's LocalCartesian to translate LiDAR (LAS format) data onto an SBET file in WGS84

I've been working for a while now to combine LAS 1.2 formatted LiDAR data with a matching SBET file to fill in the LASF_X/Y/Z fields in the LAS file. The matching of LiDAR points to SBET trajectory ...
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How to reproject spatial files in the GDAL shell?

I have multiple spatial files that need to be reprojected for GCS WGS84. How do I reproject in the GDAL shell? Which command should I use ?
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Projecting from Lambert azimuthal equal area (LAEA) projection to WGS84 without distortion

I need to convert a shapefile from Lambert Azimuthal Equal Area projection system (North Pole) to WGS84. When I use QGIS to do this, the lines that cross the anti-meridian cross over (horizontal black ...
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Using QGIS to convert from WGS to UTM not working

My predicament is this. I have inherited a bunch of data in multiple projections, and I need to calculate hub distance to get distance from one grid of points to a contour layer (I have extracted ...
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HRV Geostationary Projection GDAL

Following guidance from another geos. question posted on here (Transforming geostationary satellite image to lon/lat) I'm attempting to project my data to WGS 84. However my data is HRV from MSG. This ...
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Basemap in EPSG 32651 doesn't align with point layer in same CRS (red) but aligns with point layer in EPSG 4326 (yellow). What gives?

I have tried running the CSVtoPoint script in 4326 and 32651 project CRS but the results are the same. I can just use the point layer in 4326 but it is not a projection so it uses degrees instead of ...
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How convert HangZhou coordinate systemto WGS84?

I found some parameters, but don't know how to use them: The Center points is 120°09′33″.04E,30°14′48″.07N and the direction angle is 07°56′20″.17 . And how to convert a x,y to Longitude,latitude, ...
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Difference of Assign projection, Reproject Layer, and Define layer projection in QGIS?

I have a point layer and a polygon layer that are all in UTM51N projection but do not align. Just want to know when should I use Assign, Reproject, or Define. Experimented with a polygon in EPSG:4326 ...
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Bringing in KML into Google Earth with different Coordinate System

I have a shapefile (in red outline bellow) that has the following attribute: Projected Coordinate System: NAD_1927_StatePlane_Wyoming_East_Central_FIPS_4902 Projection: Transverse_Mercator But when ...
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R: Why is my map including the entire world WSG84 space, when all I want plotted is New Zealand?

This seems to be a very easy problem to solve, but about two hours of searching hasn't led me to the answer. I have a GIS file that I downloaded in WSG84 ESPG:4326. I read in the file using readOGR. ...
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Performing Esri NAD27 to WGS84 datum transformations with ST_Transform in POSTGIS

I am trying to align with some data points that have been projected in Esri from NAD27 State Plane feet (SRID=32026) to Lon/Lat using the "NAD_1927_To_WGS_1984_6" datum transformation using ...
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Convert relative coordinates into absolute ones having only one absolute coordinate in QGIS

I have a layer of points with relative altimetric heights from a survey carried out with a Differential GPS. I know the absolute coordinates of only one point (EPSG:4326 WGS 84 ), the other points ...
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Long,lat from raster x,y

I have downloaded a map file which I'm using as a texture on a plane. The file is a proper map file with projection in a prj-file and a tfw-file. The prj file contains: GEOGCS["GCS_WGS_1984",DATUM["...
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Transformation problem WGS84 (EPSG:4328) and ETRS89 (EPSG:4258) in QGIS

I want to transform vector points from EPSG:4326 to EPSG:4258 and vice versa for survey application. Currently the difference between the two is about 70 cm in xy direction. Using QGIS to transform ...
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In a software application displaying latitude & longitude, should N/S/E/W be localised?

In English software, it's conventional to render WGS 84 co-ordinates in a manner similar to the following: 38.8951° N, 77.0364° W or, encoding the directionality into the numeric values: ...
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Create Fishnet issues with measurement distance

I am trying to create a regular soil sampling grid based upon digitised field extents. I had posted a previous question today relating to issues with coordinate systems and displaying the sample ...
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Published Map Services in SRID 4326

I've been tasked with creating webservices of individual layers in Portal for ArcGIS. The data itself is stored in SQL Server in SRID 4326 (WGS84 unprojected). I'm wondering if it's a better idea to ...
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Gaussian Lat-Lon Grid to WGS84

I have some grib files from ECMWF ERA-Interim Reanalysis in which all the data are projected onto the N128 Gaussian grid (256 points of latitude x 512 points of longitude, https://www.ecmwf.int/en/...
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WGS84 expressed in meters - default projection in ArcMap

I am trying to identify the correct coordinate system for some data, with x and y expressed as (for example, data located roughly in the UAE): 6,220,199; 2,742,099 I haven't come across these 7-...
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How to reproject raster image from WGS84/Pseudo-Mercator to ECEF to ENU in python? [closed]

I am new to GIS and I am writing a program that should work with a cartesian coordinate system, ENU. Therefore my plan is convert all point coordinates from WGS84/Pseudo-Mercator to ECEF and then to ...
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Exporting GeoPackage layer to GeoJSON changes CRS from WGS 84 EPSG:4326 to OGC:CRS84

I'm attempting to convert a polygon layer from GeoPackage format to GeoJSON in QGIS 3.10.1. The original layer has a coordinate reference system of WGS 84 (EPSG:4326) which is what I need. Yet the ...
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GCS Sphere EMEP vs GCS WGS 1984

NOAA provides QPF data on rainfall in the form of shapefiles. The shapefiles include .prj files with information on the coordinate system used: GEOGCS["GCS_Sphere_EMEP",DATUM["D_Sphere_EMEP",SPHEROID[...
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Cartesian coordinate convert to WGS84?

I am lost by various coordinate systems. This problem may be simple for you, but I still have no idea. A point P which WGS84 coordinate is (a, b, c). a, b, c represents longitude, latitude, altitude, ...

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