/wthr/svar/NearestGridData
GET
weather.openportguide.org/api/wthr/svar/NearestGridData
Last modified:2025-07-03 19:52:19
Maintainer:tkws
OperationId:wthr_svar_NearestGridData
Description
The API endpoint "/wthr/svar/NearestGridData" returns the value of a variable for the nearest values of the forecast grid of specified position and time. In contrast to the /get_value end point, there is no interpolation. In the following example, this means that the value at the position (x,y) is searched for and the value for the position (x1,y2) is returned.
Wikipedia: Bilinear interpolation visualisation, https://en.wikipedia.org/wiki/Bilinear_interpolation
This function is useful for special cases, but in general you should prefer the endpoint /wthr/svar/InterpolatedData, which calculates the most probable value at the position (x,y) from the four surrounding values of the prediction grid.
Request Request Example
Shell
JavaScript
Java
Swift
curl --location -g --request GET 'weather.openportguide.org/api/wthr/svar/NearestGridData?model=gfs&variable=WDIR_10m&level=surface&apiKey={{api-key}}' \
--header 'Host: {{BASE_URL}}'Response Response Example
200 - Success
{"metadata":{"serviceProvider":"weather.openportguide.org","originatingCenter":"US National Weather Service - NCEP (WMC)","generatingProcess":"Global Multi-Grid Wave Model (Static Grids)","model":"gfswave","requestedParameters":"model=gfs, variable=WDIR_10m, level=surface, latitude=None, longitude=None, timestep=None, units=None","shortName":"WDIR","fullName":"Wind Direction (from which blowing)","unit":"°","level":"surface","ny":721,"nx":1440,"latitudeFirstGridpoint":90.0,"latitudeLastGridpoint":-90.0,"longitudeFirstGridpoint":0.0,"longitudeLastGridpoint":359.75,"gridlengthXDirection":0.25,"gridlengthYDirection":-0.25,"refDate":"2025-07-03T12:00:00Z","forecastTime":[0,"2025-07-03T12:00:00Z"],"forecastPosition":[{"latitude":0.0},{"longitude":0.0}],"usedTokens":1},"data":{"value":191.0}}Request
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Modified at 2025-07-03 19:52:19