K index, characterizing the local geomagnetic activity, is generally automatically calculated by algorithms such as KASM, provided and recommended by INTERMAGNET. KASM requires an appropriate K9 value, specific for each observatory. We analyze K values for Italian observatories comparing them with historical German observatories, to establish the best K9 estimation for our stations. A comparison with results from a previous empirical method shows the consistency and reliability of our outcomes.

GPS Drifters that float down rivers are important tools in studying rivers, but can be expensive. Recently both GPS receivers and GSM modems have become available at lower prices to tinkering scientists due to the rise of the Open Hardware revolution and the Arduino. We provide detailed instructions on how to build a Low Power GPS drifter with local storage and GSM model that we tested in a fieldwork in Myanmar. These instructions allow fellow geoscientists to recreate the device.

This study has been carried out within the scope of the project supported by ITU, Afyon Kocatepe and Hitit Universities. The data were obtained from annual GPS campaigns. With this study, the actual velocity field of the region was revealed and the deformations of the region were tried to be determined. In particular, the creep, which is a rare phenomenon in tectonic, was studied in order to understand its mechanism and whether it is in the region or not.

Based on existing ocean bottom E-field receiver (OBE) specifications, including low noise levels, low power consumption, and low clock-drift error, we integrated two induction coils for the magnetic sensor and a three-axis omnidirectional geophone for the seismic sensor and assembled an ultra-short base line (USBL) transponder as the position sensor, which improved position accuracy and operational efficiency while reducing field data acquisition costs.