DSpace at IGF PAN
https://dspace.igf.edu.pl:443/xmlui
The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material.2024-03-19T01:50:40ZModelling the impact of historical and future Land Use Land Cover changes on the hydrological response of an Ethiopian watershed
https://dspace.igf.edu.pl/xmlui/handle/123456789/125
Modelling the impact of historical and future Land Use Land Cover changes on the hydrological response of an Ethiopian watershed
Regasa, Motuma Shiferaw; Nones, Michael
Land Use Land Cover (LULC) is generally considered one of the key factors influencing the hydrological processes and sediment output in arid and semi-arid watersheds. Focusing on the Ethiopian Fincha watershed, the current study applies the Soil & Water Assessment Tool (SWAT) model to evaluate how LULC changes affect the watershed hydrological dynamics. Utilizing the available stream flow time series data acquired from 1986 to 2008, the model was calibrated and validated based on past conditions. At the same time, future scenarios were simulated by means of the Land Change Modeler (LCM) model using historical trends. To investigate the effect of LULC changes on watershed hydrology, six LULC maps have been produced to account for historical (1989, 2004, 2019) and future (2030, 2040, 2050) conditions. The results show an increase in surface runoff in the past, while a similar tendency is expected for the next three decades if no specific mitigation measures will be implemented soon. On the other hand, lateral flow and
groundwater flow are generally decreasing. The present analysis shows that the ongoing LULC transformation, which involves an expansion of agricultural land, urban areas, and intermittent logging of forest cover, may be the reason for the increment in surface runoff, and the decline in groundwater and lateral flow.
2024-01-10T00:00:00ZResults of Geomagnetic Observations: Belsk, Hel, Hornsund, 2022
https://dspace.igf.edu.pl/xmlui/handle/123456789/124
Results of Geomagnetic Observations: Belsk, Hel, Hornsund, 2022
Reda, J.; Neska, M.; Wójcik, S.; Czubak, P.
This publication contains basic information on geomagnetic observations carried out in 2022 in three Polish geophysical observatories: Belsk, Hel, and Hornsund. IAGA codes are respectively: BEL, HLP, and HRN. All these observatories belong to the Institute of Geophysics, Polish Academy of Sciences. Observatories Belsk and Hel are located on the territory of Poland, while Hornsund is in Spitsbergen archipelago, under Norwegian administration.
In 2022, like in the previous years, the Belsk, Hel, and Hornsund observatories have kept a close collaboration with the world network of geomagnetic observatories INTERMAGNET. The Belsk Observatory joined INTERMAGNET in 1992, Hel in 1999, and Hornsund in 2002. Data of geomagnetic field components XYZF have been sent to the INTERMAGNET centre in real time so they are publicly available on the Internet. At the beginning of 2023 have been prepared the final data (status Definitive) for the whole 2022 year observations. Definitive Data are published on INTERMAGNET website too.
2023-12-11T00:00:00ZRoman Teisseyre: In Memoriam
https://dspace.igf.edu.pl/xmlui/handle/123456789/123
Roman Teisseyre: In Memoriam
Professor Roman Teisseyre, the outstanding modern geophysicist, was one of the most important and influential persons in the whole history of the Institute of Geophysics, Polish Academy of Sciences. His death ended the era of the founders and managers of the Institute who shaped, from its very beginning, the basic scientific profile of our place. Also, the friendly and pleasant atmosphere among the people working there, as initiated by him and the whole group of Institute’s founders, was prevalent over the years. He had many, many friends who quickly responded to our appeal to contribute to the present book In Memoriam.
2023-12-07T00:00:00ZAchievements of the Institute of Geophysics, PAS: Annual Report 2022
https://dspace.igf.edu.pl/xmlui/handle/123456789/122
Achievements of the Institute of Geophysics, PAS: Annual Report 2022
This Monograph outlines the recent achievements of the Institute of Geophysics, Polish Academy of Sciences, focusing on the main strategic areas: Geosystem Processes, Earth Structure and Georesources, Anthropogenic and Natural Geohazards, Climate Change and Polar Research.
The publication is a reviewed and formatted version of the Annual Report 2022, providing information about the research done at the seven departments (Seismology, Atmospheric Physics, Lithospheric Research, Theoretical Geophysics, Hydrology and Hydrodynamics, Magnetism, Geophysical Imaging, and Polar and Marine Research), together with the Institute’s infrastructure, instrumentation, projects that have been completed or are under way, as well as editorial, educational and many other activities.
2023-11-20T00:00:00Z