Offshoremaps

NAME

Offshoremaps - Lightning and wave maps for offshore helicopter pilots

DESCRIPTION

This service delivers PNG maps for several areas in Norway, aimed at helicopter traffic in the North Sea. These are primarily intended for use at IPPC.no.

There are currently three types of maps:

helicopterlightningobservations

Maps of observed lightning and radar reflectivity.

New images are added every ten minutes, subsequent ones overwriting the first for the same hour. Previous images are available for 6 hours before being removed from the available list.

helicoptertriggeredlightningindex

Maps showing risk of helicopter triggered lightning in offshore and coastal regions.

New images are generated every 3 hours for 0-18 hours ahead, replacing previous images for the same time period. Expired images are available for 3 hours backwards.

helicoptersignificantwaveheight

Maps of helicopter-relevant significant wave heights.

New images are generated every 6 hours for 0-18 hours ahead, replacing previous images for the same time period. Expired images are available for 3 hours backwards.

USAGE

Parameters

type

Type of map. Must be used either as parameter or as endpoint (method). Valid types are:

helicopterlightningobservations, helicoptersignificantwaveheight, helicoptertriggeredlightningindex

area

The geographical area covered by the map. Valid areas are:

central_norway, northern_norway, norway, western_norway

time (optional)

Time of forecast in ISO format, e.g. 2019-01-15T12:00:00Z.

If not specified, the earliest available forecast or latest observation is used.

Example requests

https://api.met.no/weatherapi/offshoremaps/1.0/helicopterlightningobservations?area=northern_norway

https://api.met.no/weatherapi/offshoremaps/1.0?area=norway&type=helicoptersignificantwaveheight&time=2024-07-15T21:00:00Z

available

A list of available data may be retrieved using the 'available' method, either as XML or JSON. The list may be filtered by type and/or area.

https://api.met.no/weatherapi/offshoremaps/1.0/available

https://api.met.no/weatherapi/offshoremaps/1.0/available.json?type=helicoptertriggeredlightningindex

Use the updated field in the JSON list to check if a file have been updated.

CHANGELOG

Version 1.0 in production, 2023-06-08

Moved to production

Version 1.0 beta, 2023-02-24

Initial beta version

 

Changelog