Recent  

The LOPS measure the magnetic field with high spatial coverage. Although there are no magnetic cleanliness to the satellites, triple sensors configuration enables removal of interferences from the satellites. Results show they are able to capture the Earth’s internal as well as the external fields from the magnetosphere-ionosphere current system. This study implies that large number of small low-cost satellites without magnetic cleanliness would be
the future for the space magnetic exploration.

In this paper, we have produced definitive data from Indonesian Geomagnetic Observatories to create a standardized high-quality set of measurements for scientific exploitation. We explain the steps taken to improve upon the data collections and processing protocols that previously existed and suggested improvements to enhance the quality of the magnetic time-series. The data can fill the gap in the Pacific region and provide input into geomagnetic modeling and secular variation studies.

This paper is dedicated to description of universal, easy to modify and affordable rock slope monitoring system. By such a system, we are able to monitor environmental variables, rock mass 3 m surface zone temperature and temporal dynamic of selected joints. So far, we are observed differences between three monitored sites, however, to further data analyses longer time series are needed. We hope, our work encourage scientific community to increase knowledge in this interesting field.

This paper describes the development of a new multifunctional 4-dimensional (4D) high-density electrical instrument based on remote wireless communication technology, for use in shallow geophysical prospecting. We did lots of tests. Our design successfully addresses a number of shortcomings of such instruments currently available on the market, including bulkiness, weight, limitations in data acquisition accuracy, and difficulty of connecting to the Internet for remote monitoring.

Based on the intercomparison of a photoacoustic and a cavity attenuation phase shift instruments, this manuscript has corrected and calibrated the data of recent field measurement. It showed good agreement and closure correlation in the optical properties measured from different optical methods, and the scattering coefficient part plays a crucial role as the bridge in constructing correlation of both instruments.

Global satellite navigation systems are commonly used for timing and synchronization of instrument platforms. These system clocks periodically roll over from limitations in discrete counter math. Due to the rarity of these events (19.6 years for GPS), special consideration must be given to designing instruments intended for use in hard to reach locations like the Antarctic Plateau. A few best practices are presented to prevent total system failure from unexpected subsystem faults.