Viliam Novák

Institute of Hydrology of the Slovak Academy of Sciences

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Hana Hlaváčiková

Slovak Hydrometeorological Institute

Karol Kňava

Slovak Academy of Sciences

Ladislav Holko

Slovak Academy of Sciences

Michal Danko

Institute of Hydrology of the Slovak Academy of Sciences

JŠ

Jiřı́ Šimůnek

University of California, Riverside

Zdeněk Kostka

Slovak Academy of Sciences

Jozef Hlavčo

Slovak Academy of Sciences

Marek Rodný

Slovak Academy of Sciences

Ján Havrila

Slovak Academy of Sciences

Anatolij Budagovskyi

Institute of Water Problems

Cooperative Institutions

Slovak Academy of Sciences

Institute of Hydrology of the Slovak Academy of Sciences

Institute of Chemistry of the Slovak Academy of Sciences

Slovak Caves Administration

Technical University of Zvolen

BOKU University

Slovak Hydrometeorological Institute

University of Palermo

Organizzazione per la Tutela Forestale, Ambientale e Agroalimentare

Slovak University of Technology in Bratislava

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The effects of rock fragment shapes and positions on modeled hydraulic conductivities of stony soils

Geoderma (2016)

Hana Hlaváčiková Viliam Novák Jiřı́ Šimůnek

Ellipse

Hydraulic head

Matrix (chemical analysis)

Rock fragment

Ellipsoid

10.1016/j.geoderma.2016.06.034

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Citations (66)

Soil as a Part of the Soil–Plant–Atmosphere Continuum (SPAC)

Theory and applications of transport in porous media (2018)

Viliam Novák Hana Hlaváčiková

10.1007/978-3-030-01806-1_1

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Citations (0)

Calibrating electromagnetic short soil water sensors

Journal of Hydrology and Hydromechanics (2010)

Willibald Loiskandl Graeme D. Buchan Wolfgang Sokol Viliam Novák Margarita Himmelbauer

Calibrating electromagnetic short soil water sensorsThe use of electromagnetic (EM) soil moisture probes is proliferating rapidly, in two broad domains: in field and laboratory research; and in strongly practical applications such as irrigation scheduling in farms or horticultural enterprises, and hydrological monitoring. Numerous commercial EM probes are available for measurement of volumetric water content (θv), spanning a range of measurement principles, and of probe dimensions and sensing volumes. However probe calibration (i.e. the relationship of actual θv to probe electrical output) can shift, often substantially, with variations in parameters such as soil texture, organic matter content, wetness range, electrical conductivity and temperature. Hence a single-valued, manu-facturer-supplied calibration function is often inadequate, forcing the user to seek an application-specific calibration. The purpose of this paper is to describe systematic procedures which probe users can use to check or re-determine the calibration of their selected probe(s). Given the wide diversity of operating principles and designs of commercially-available EM probes, we illustrate these procedures with results from our own calibrations of five different short probes (length of 5 to 20 cm). Users are strongly recommended to undertake such calibration checks, which provide both a) pre-use experience, and b) more reliable in-use data.

10.2478/v10098-010-0011-3

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Citations (15)

Infiltration of Water into Soil

Theory and applications of transport in porous media (2018)

Viliam Novák Hana Hlaváčiková

Infiltration (HVAC)

Ponding

Infiltrometer

10.1007/978-3-030-01806-1_10

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Citations (9)

Transpiration and nutrient uptake dynamics in maize (Zea mays L.)

Ecological Modelling (2003)

Viliam Novák J. Vidovič

Growing season

10.1016/s0304-3800(03)00102-9

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Citations (50)

Global changes and hydrosphere

Acta hydrologica Slovaca (2022)

Viliam Novák

Increasing population led to the increasing demand to food, raw materials, water and energy.Anthropogenic demands provoke land use structure changes, intensification of its exploitation, deforestation, fossil fuel combustion and related carbon dioxide production.Those phenomena are changing water and energy fluxes of biosphere, and conditions for life.Actual climate change is a result of other global changes both natural and anthropogenic.It is mostly felt as a change of ecosystem temperature, increase of precipitation intensities and totals, as well as their irregular distribution in time and space.Flood periods are followed by long periods without precipitations.Water consumption is increasing; it is renewable resource, but water resources are unevenly distributed and often polluted, therefore unsuitable for use as fresh water.Increasing population as well as increasing consumption of resources lead to the imbalance between our planet production and consumption.To preserve good conditions for population of the Earth, it is necessary to decrease consumption of energy, raw materials and food to reach equilibrium between Earth´s ecosystem production and consumption of the ecosystem products.

Hydrosphere

10.31577/ahs-2022-0023.01.0001

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Citations (2)

Evaporation from Different Surfaces

Springer eBooks (2012)

Viliam Novák

Potential evaporation

Water Transport

10.1007/978-94-007-3840-9_3

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Citations (2)