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The list of international projects SAS

Earth Science Institute of the SAS

European Alps Geoid

Európsky Alpský geoid

Duration: 1.1.2022 - 31.12.2027
Program: Multilateral - other
Project leader: Mgr. Zahorec Pavol PhD.
Annotation:The Global Navigation Satellite Systems (GNSS) have caused a fundamental and lasting change in the field of Geodesy. Due to the missing link to the gravity field of the Earth, GNSS measurements yield purely geometric heights relative to a reference ellipsoid. To derive physical heights, additional information is necessary that describe the undulations of the height reference surface. This information is computed from global or regional gravity field models and is denoted as geoid or quasigeoid models. The combination of GNSS measurements and geoid models provides an efficient tool to determine heights. However, it does not reach the accuracy of the traditional leveling methods. Height reference systems are therefore still measured on a national basis and by the use of precision leveling. The national height reference systems differ regarding the definition (height type), the applied numerical standards as well as the choice of the geodetic datum (zero level). In the geodetic practice this results in different height levels that become most apparent at the national borders, yielding up to about 50 cm (between France and Germany). The cooperation is expected to enable the following achievements: • Harmonization of the underlying data for regional geoid modeling in the border regions of the partnering countries, • Determination of a joint geoid/quasigeoid model in the Alpine region (European Alps Geoid), • Analysis of the datum differences between the national height reference frames of the partnering countries, • Derive appropriate transformation rules between the national height reference frames, • Validation of global and continental gravity field models.

FAIR Network of micrometeorological measurements, Akcia CA20108

FAIR sieť mikrometeorologických meraní, Akcia CA20108

Duration: 14.10.2021 - 13.10.2025
Program: COST
Project leader: RNDr. Nejedlík Pavol CSc.
Annotation:The FAIRNESS action intends to improve standardization and integration between databases/sets of micrometeorological measurements that are part of research projects or local/regional observational networks established for special purposes (agrometeorology, urban microclimate monitoring). Addressing identified challenges requires an effective transboundary network of researchers, stakeholders (extension services and environmental agencies, local authorities and ministries, SME) and civil society (specialized and general public) from Europe and beyond to identify and fill knowledge gaps, standardize, optimize and promote new environmental-tailored measurement and control procedures, enhance research effectiveness and improve dissemination.

Continental Lithosphere: a Broadscale Investigation

Kontinentálna litosféra: rozsiahle vyšetrovanie

Duration: 1.1.2019 - 31.12.2024
Program: European Science Foundation (ESF)
Project leader: prof. RNDr. Bielik Miroslav DrSc.
Annotation:Project “Continental Lithosphere: a Broadscale Investigation” is European initiative to advance our understanding of orogenesis, mantle dynamics, plate reorganizations, surface processes and seismic hazard in the Alps-Apennines-Carpathians-Dinarides orogenic system.

Western Tethys meets Eastern Tethys

Oceánske prepojenie východnej a západnej Tethýdy

Duration: 1.1.2020 - 31.12.2024
Program: UNESCO
Project leader: doc. RNDr. Soták Ján DrSc.
Annotation:The aim of this IGCP project is to bring together geologists from the western and eastern parts of the former Tethys (Morocco/Iberia–SE Asia) for establishing a common framework and a common tectonostratigraphical concept (latest Paleozoic–Mesozoic with emphasis on Permian–Jurassic).

Deposit-to-Regional Scale Exploration

Od ložiskového k regionálnemu prieskumu

Duration: 1.12.2020 - 31.5.2024
Program: ERANET
Project leader: RNDr. Vozár Ján PhD.
Annotation:Mineral deposits are a small part of a very large geological context, the so-called mineral system. The first objective of D-Rex is to build onto this new paradigm with geophysical data from three prospective areas in Sweden, Greenland and Finland. Therefore, the second objective of D-Rex is the integration of multi-facetted geophysical data acquired at those prospective areas. The third objective of D-Rex is the unification, optimum integration and visualization of geological and geophysical data on the basis of the Common Earth Modelling (CEM) concept. Key element of the project involves: Electromagnetic (deposit scale) surveys; Development of multimethod 3D modelling/inversion technique; Joint inversion assisted by machine learning techniques to couple different geophysical parameters, to uncover correlations between them as well as their absence; Regional to deposit scale models integration into Common Earth Model based on all available geophysical and geological data; Building predictivity maps based on the regional models; Correlation and interpretation of regional scale together with deposit scale models. The outputs of this project will be novel technologies and workflows that directly address Europe’s goal to become self-sufficient in terms of raw materials. We will achieve an improved understanding of the geological history of key mineral districts in Europe and by proxy also other similar or related European metallogenic zones. This understanding will result in improved models for the formation of minerals and allow us to better predict their expected locations. This will lead to the discovery of new, higher-grade and possibly larger mineral deposits and thus better supply.

Opportunistic precipitation sensing network

Oportunistické formy merania atmosferických zrážok

Duration: 13.10.2021 - 12.10.2025
Program: COST
Project leader: Mgr. Onderka Milan PhD.
Annotation:Despite advances in remote sensing, precipitation observations remain one of the weakest links in the description of Earth’s water cycle. This is especially critical in the face of climate change, human-induced hydrologic changes e.g. due to rapid urbanisation, and consequent increase in frequency and magnitude of extreme events. Opportunistic sensing can greatly improve spatial and temporal resolution of standard precipitation monitoring networks on continental scale by complementing them with measurements from personal weather stations or devices primarily not intended for precipitation monitoring such as commercial microwave links or broadband satellite terminals. The number of opportunistic sensors has already now exceeded traditional in-situ observations by an order of magnitude, and it is increasing exponentially. Nevertheless, it is still unclear how to make this data operationally accessible, achieve robust quality control of these observations, and integrate them into standard observation systems.OPENSENSE brings together scientists investigating different opportunistic sensors, experts from national weather services, owners of sensor networks, and end-users of rainfall products to build a worldwide reference opportunistic sensing community. It will i) overcome key barriers preventing data exchange and acceptance as hydrometeorological observations ii) define standards to allow for large-scale benchmarking of OS precipitation products developing new methods for precipitation retrieval iii) coordinate integration of the opportunistic observations into traditional monitoring networks, and iv) identify potential new sources of precipitation observations. These coordinated activities will boost uptake of OS as precipitation observation methods and enable generation of high-quality precipitation products with unprecedented spatial and temporal resolution.

Benchmark experiments and modeling of alloy systems involving flow and solidification

Referenčné experimenty a modelovanie zliatinových systémov s prúdením a tuhnutím

Duration: 1.1.2023 - 31.12.2024
Program: Mobility
Project leader: doc. Mgr. Guba Peter PhD.
Annotation:Regions of mixed solid-liquid phases, or so-called mushy regions, play an important role in geology and geophysics. The phase change in the mushy layers is a source of convective motions leading to the redistribution of mass and heat in the solidifying system. A striking consequence is the formation of vertical chimneys through which plumes of buoyant fluid rise. The project aims at understanding the growth of a mushy layer with chimney convection. We will design and conduct a series of benchmark solidification experiments on salt solutions. Theoretical modelling will focus on understanding the factors controlling the convective mushy layer growth and the evolution of its internal structure over a long time horizon. A further aim will be to quantify the convective fluxes between the mush and the molten alloy, which are crucial for macrosegregation. Understanding the above phenomena is vital for the explanation of the origin of the Earth's core convection, magma solidification as well as the mass transport between the shells and subsurface oceans of the icy moons.

Evolved magmatic and pegmatic systems as source of critical row materials and industrial minerals

Rozvinuté magmtické a pegmatitické systémy ako zdroje nedostatkových nerastných surovín a priemyselných minerálov

Duration: 1.5.2022 - 30.4.2025
Program: ERANET
Project leader: RNDr. Broska Igor DrSc.

The total number of projects: 8