Search results

0585315 - ÚVGZ 2025 RIV NL eng J - Journal Article
Kudláčková, Lucie - Poděbradská, Markéta - Bláhová, Monika - Cienciala, Emil - Beranová, J. - McHugh, C. - Finney, M. - Novotný, Jan - Zahradníček, Pavel - Štěpánek, Petr - Linda, R. - Pikl, Miroslav - Vebrova, D. - Možný, Martin - Surový, P. - Žalud, Zdeněk - Trnka, Miroslav
Using FlamMap to assess wildfire behavior in Bohemian Switzerland National Park.
Natural Hazards. Roč. 120, č. 4 (2024), s. 3943-3977. ISSN 0921-030X. E-ISSN 1573-0840
R&D Projects: GA MŠMT(CZ) EF16_019/0000797
Institutional support: RVO:86652079
Keywords : farsite simulator * modeling approach * valued resources * fire behavior * risk * landscape * exposure * climate * Wildfire * Czech Republic * Dead spruce fire * FlamMap * farsite * Modeling
OECD category: Climatic research
Impact factor: 3.7, year: 2022
Method of publishing: Open access
https://link.springer.com/article/10.1007/s11069-023-06361-8
Permanent Link: https://hdl.handle.net/11104/0353025

0585235 - ÚI DATA Scientific data      2024
Geletič, Jan - Bauerová, P. - Belda, M. - Bureš, Martin - Eben, Kryštof - Fuka, V. - Karel, J. - Keder, J. - Krč, Pavel - Jareš, R. - Patiño, W. - Radović, J. - Resler, Jaroslav - Řezníček, Hynek - Šindelářová, A. - Vlček, O.

Scenarios simulations of Prague (D05).

Description: Basic information
This dataset contains simulation results for the so-called Holešovičky domain, an area in the city of Prague, Czech Republic, expected to undergo major traffic infrastructure changes in the near future. Three scenarios were modelled: current infrastructure with traffic intensity projections for 2023 (C1), future outlook with a finished part of city inner ring-road in 2030 (C2) and effect of finishing the northern part of the Prague outer ring-road (C3), which will decrease heavy traffic in the domain. Note that all scenarios have slightly different landcover (trees, buildings, bridges, tunnels etc.), so there could be small areas containing NA values in the maps and GIS files. All times are in UTC (local time, CEST is UTC +02:00).

For more detailed description of the experiments see the TURBAN project website at https://www.project-turban.eu/.

General organisation
Each scenario has two folders; post-processed results from the PALM model as averaged ASCII files that can be viewed in many GIS applications (output-gis) and maps in the PNG format (output-png). Each variable was averaged from original 10min values to 1, 3 and 24-hour averages. The C1 scenario was used as a baseline. In addition to that, also differences for all variables were calculated for the scenarios C2 and C3. In total, the C1 scenario has 3 subfolders with absolute values (prefix abs), the scenarios C2 and C3 have 6 (3 with absolute values and 3 with differences; prefix diff).

Modelled variables
Each subfolder includes 7 subfolders with variables. Variable bio_mrt is the Mean Radiant Temperature (MRT), bio_pet is the Physiological Equivalent Temperature (PET), bio_utci is the Universal Thermal Climate Index (UTCI), kc_PM10_02m is the concentration of PM10 at 2m above ground, theta_2m is the potential temperature at 2m above ground, tsurf is the surface temperature and wspeed_10m is the wind speed at 10m above ground.

File nomenclature
Each file (PRJ or ASC, PNG) has the same nomenclature. An example (bio_utci_abs-01h_20190724_1200-1300.png) could be parsed as: variable name (bio_utci), processed output (abs-01h), date (20190724) and averaged period (1200-1300). So, the result is a map with hourly averaged UTCI for 24 Jul 2019 between 12:00 and 13:00 UTC.

Important note
During the processing phase a few potentially important problems were identified and need to be analysed in detail. One of them are extremely overestimated concentrations due to stable conditions from boundary condition inputs. In certain situations it can happen that the best regional meteorological model can provide inappropriate input conditions for some episode. This needs to be checked in detail before any following interpretation.
Keywords : air quality * thermal comfort * micro-scale * CFD modeling * cities
OECD category: Meteorology and atmospheric sciences
Permanent Link: https://hdl.handle.net/11104/0353007
Depositor: admin
Date of release: 17.4.2024
 

0584695 - PSÚ 2025 eng A - Abstract
Lacko, David
Dynamic structural equation models.
[Seminar in Psychometrics. Praha, Online, 14.03.2024]
Method of presentation: Zvaná přednáška
Event organizer: MFF UK
URL events: https://www.cs.cas.cz/comps/seminars/david-lacko-2024-03-14.html 
R&D Projects: GA MŠMT(CZ) CZ.02.01.01/00/22_008/0004583
Institutional support: RVO:68081740
Keywords : intensive longitudinal data * dynamic structural equation modeling * ecological momentary assessment
OECD category: Psychology (including human - machine relations)
Permanent Link: https://hdl.handle.net/11104/0352540

0583430 - MÚ 2024 RIV eng U - Conference, Workshop Arrangement
Křížek, Michal
Applications of Mathematics 2023.
[Prague, 11.05.2023-12.05.2023, (K-EUR 36/5)]
Institutional support: RVO:67985840
Keywords : domain decomposition * immersed boundary finite element method * Newton method * mathematical modeling
OECD category: Applied mathematics
https://am2023.math.cas.cz/
Permanent Link: https://hdl.handle.net/11104/0351400

0582990 - BC 2024 RIV CZ cze L - Prototype, f. module
Borovec, Jakub - Jan, Jiří - Vrzák, J.
Stabilizovaný sediment.
[Solidified sediment.]
Internal code: CREA - EG19_263/0018826, Stabilizovaný sediment®, 2023 ; 2023
Technical parameters: Byl zhotoven funkční prototyp-postup výroby prvků ze sladkovodních jemnozrnných sedimentů, určených k použití v rámci vodohospodářských staveb nebo pozemního stavitelství. Postupy/receptury umožňují přetvoření, jinak obtížně využitelného, jemnozrnného materiálu na surovinu, dosahujících mechanicko-fyzikálních vlastností dostatečných k jeho využití jako výplňového materiálu nebo jako samostatných konstrukcí, u kterých nejsou kladeny nároky na mrazovou odolnost nebo vysoké pevnosti v tlaku. Příkladem takových použití mohou být ponořené vlnolamy nebo obdobné struktury ovlivňující proudění a vlnění v mělkých částech nádrží nebo výplně ostrovů, včetně realizace pláži. Princip úpravy sedimentů spočívá v úpravě zrnitostního složení materiálu a přidáním vhodného množství hydraulického pojiva. Konkrétní přídavky přísad a kroky úpravy se liší v závislosti na vlastnostech vstupního sedimentu a zároveň na požadovaných vlastnostech výstupního materiálu. Protože se při výrobě postupuje vsádkovým systémem, je důležitou součástí postupu i dodržení kontroly homogenity vstupních surovin a opakovatelnosti mísícího procesu.
Economic parameters: Úspora nákladů v řádech stovek tisíc Kč.
Institutional support: RVO:60077344
Keywords : sediment sources and reuse * breakwater * littoral development * smart circular economy * climate change and water quality modeling * water ecosystem resilience
OECD category: Environmental sciences (social aspects to be 5.7)
Permanent Link: https://hdl.handle.net/11104/0351669