Sintia Windhi

Electromagnetic Induction Workshop

It was a sunny day on Thursday morning in Weimar, Germany. Prof. Oliver Ritter (the head of the organizer, on the left) were looking at the main entrance of the venue of twenty second electromagnetic induction workshop, before he came in to the building. 19 program sessions, from theory to 3D inversion in practice, were scheduled in the main hall of the building for five days.
There were 385 abstract which were presented in oral or poster.

International Geothermal Conference

Every year, ITB organizes an international geothermal conferences. In this occation, Prof. Manfred Hochstein attent this conference. Thus, many students or young scientists had a great opportunity to discuss with an expert, a grand father, a legend, who have been doing research in geothermal for decades.

GFZ PhD Days

Every year, GFZ PhD day is taken place in building H, Albert Einstein Street, Potsdam, Germany. In this occation, hundreds PhD students present their research. Usually, this conference is on March, so the students who are going to EGU meeting in April have enough time to do well preparation. It is a unique meeting where there are hundreds posters using exactly the same templates.

Electromagnetic Induction Workshop

EGU

This is the main building where EGU conference take place every year. There were titles on the program book. There were almost 10.000 scientists who attent the conference. It could be that EGU is the second huge conference, after AGU, where many scientists meet together.

Schmucker – Weidelt – Kolloquium

It was a nice monday evening in Neustadt, Germany, when Gerald Smith took the picture of German EM community. Some of them are EM experts who have been attending Schmucker – Weidelt – Kolloquium since decades ago. Some of them were students who were studying EM at that time. This Kolloquium is taken place every two years, on odd year (e.g. 2011; 2013), and the venue is always in small town. So, all people can discuss intensively in a warm and nice atmosphere.

Malinau, Indonesia

It was a very warm day in Malinau, Borneo Island, until the orange tent should be covered by leaves to decrease the temperature inside the tent (where the MT data logger was placed).

Opuwo, Namibia

Opuwo is located some hundred kilometers to the north from Windhoek, i.e. the capital city of Namibia. In this MT (Magnetotelluric) field campaign, structures correlated to Pangea (the old cratoon) was the target. Beside very hard rocks to dig, 42 Celsius degree temperature was a challange. However, the scenes, the landscapes are awesome.

Sipoholon, Indonesia

Sipoholon is located in the North Sumatra Province, Indonesia. Magnetotelluric (MT) method was used in this filed campaign to find conductive structures, which correspond to geothermal fluids. In the picture, from left to right, are Dr. Nukman (geologist), Toni (geophysicist), Faizal (geophysicist). They were trying to find a good location (i.e. wide and flat area) for setting up MT instruments close to Permian Granite outcrops.

Magnetotelluric

Maxwell equations can be printed in a T-shirt, instead of in a thesis. Tensor impedance matrix can be written in the wall of a bedroom, instead of in a dissertation. Although for some people, usually bachelor students, those two thing are worse than have a headache.

At the beginning, it was very hard to understand Maxwell and Helmholtz equations. It was also not easy to explain tilt angle in VLF and impedance tensor in MT. Year after year of consistency, finally I found out that it is just about electromagnetic wave, something in our daily life.

The sun generates solar wind, which is a source of electromagnetic waves in small frequency (i.e. smaller than 1 Hz). Thunder storms generate electromagnetic waves in high frequency (i.e. higher than 1 Hz). Power lines generate electromagnetic waves in frequency around 50 Hz and its harmonics.

Electric and magnetic waves travel together around the world. They should be unseparatable to be called electromagnetic waves. When the EM waves have to travel through some places (medium), they adapt with the character of the places (e.g. conductivity).