Warning!

Javascript is disabled on this browser.
Javascript must be enabled for this website to display and function correctly.

Magnetic Survey Data Form

Please enter your name and email address


This is a request form for retrieving magnetic survey data:

Date range of interest: to both in decimal years (data available from 1900 to present)

Please enter the latitude and longitude range (in decimal degrees) over which you would like the data to be extracted:

LATITUDE, please enter southernmost latitude followed by northernmost (in the range -90 to 90):

From degrees to degrees

LONGITUDE, please enter westernmost longitude followed by easternmost (in the range 0 to 360):

From degrees to degrees

Types of data required: one-off land survey data; aeromagnetic data;

three-component marine data; satellite data; marine total intensity data;

repeat station data; observatory (variometer) station data.

Include a Map of the Location : NO YES


To submit the query, press this button:

To clear the form, press this button:

To obtain results from a web service in JSON, GEO-JSON (adding -pp for more human readable format) or CSV format use requests like https://gifswebapi.bgs.ac.uk/wdc/global-survey/data/?start-year=2015.0&end-year=2020.0&north-latitude=90.0&south-latitude=-90.0&west-longitude=0.0&east-longitude=360.0&add-source-information=False&format=geo-json-pp modifying the query string parameters as appropriate. Simple documentation for the web service parameters is available at https://gifswebapi.bgs.ac.uk/wdc/global-survey/.