SM
Seismology

Laura Ermert

Laura is a PhD student at ETH Zürich in Switzerland. She is working on ambient noise source inversion with cross-correlation techniques. Her goal on the blog is to showcase PhD students' and young researchers' results, as well as recent seismological highlights. You can reach Laura at lermert att student.ethz.ch.

EGU GA 2016 – You don’t get older, you get better!

April 26, 2016
EGU GA 2016 – You don’t get older, you get better!
Sunny weather and busy days in Vienna. From imaggeo.egu.eu

This years general assembly is over and its buzz still ringing in my ears. Here are a few spotlight impressions fresh off my mind. In the coming days and weeks, the complete brand new ECS representative team will present itself on the blog, and we will update you in more detail about highlights and low points of the conference. SCIENCE! Do we have to mention it was amazing? Yes, I’ve heard people ...[Read More]

Listen to the … massive black hole merger song!

February 29, 2016
Listen to the … massive black hole merger song!
Still from a numerical simulation of black hole collision. Image credits: SXS, http://mediaassets.caltech.edu/gwave#graphics

I bet you were every bit as excited as me about the recent announcement of the detection of gravitational waves at two locations of the Laser Interferometer Gravitational-Wave Observatory LIGO*. These waves were sent out to space-time by the merger of two black holes. Call me a nerd, but after reading the news I soon started wondering: What sort of periods do these waves have? In my imagination, s ...[Read More]

Listen to the hum

January 29, 2016
Listen to the hum
By Camille Clerk on imaggeo.egu.eu

A new global S-wave model has recently been published in Geophysical Journal International. While this sounds exciting enough to tomographers and geodynamicists, this model has been constructed in a rather avant-garde way, too. It is one out of only two global tomographic models ever to be made based on the Earth’s background oscillations, that is long-periodic seismic noise also known as Earth’s ...[Read More]

Brewing wiggles on Mars

September 21, 2015
Brewing wiggles on Mars

Creating 1 Hz-seismograms in a 3-D Earth model, and comparing them to observed body waves, is a dream that’s today still too expensive for routine use. But even tackling the problem for a spherically symmetric Earth poses certain challenges. Recently, a new tool entered the stage (you might have followed the Solid Earth discussion): Instaseis allows users to extract seismograms for a spherically s ...[Read More]