Swedish-Finnish Infrasound Network

Infrasound source locator

Station 1

Station 2

Resolution

Select date/event*

* Uppercase stations signals availability of data and lowercase means lack of data

Select date

Year:

Month:

Day:

Select one of the days from the drop-down list above, then select the desired stations and press "Select event" or specify a date and press "Select date". Then click on both plots to select a direction. When you have selected a direction from both plots a pop-up window will appear with a map and a direction plot. (If your browser doesn't support java-script, the map will appear at the bottom of this page).

All stations are updated continously.


	Kiruna 24 no selection yet View first halfhour as a timeseries View last halfhour as a timeseries no selection yet Kiruna 24		Jämtön 24 no selection yet View first halfhour as a timeseries View last halfhour as a timeseries no selection yet Jämtön 24

Background

Each plot consists of 48 30-minutes measurements. In each square you have direction on the Y-axis, while the x-axis corresponds with time. The top of each square you have north (360 degrees), in the middle you have south (180 degrees) and in the bottom north (0 degrees).

These infrasound measurements have been done with 3 microphones separated by 75 meters. Microphone 2 are place 75m west of microphone 1 and microphone 3 are placed 75m south of microphone 1.

Terms of use

License agreement for data obtained from Kiruna Atmospheric and Geophysical Observatory at Swedish Institute of Space Physics.