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Wyszukujesz frazę "Mrozek, T." wg kryterium: Wszystkie pola


Tytuł:
Izerski Park ciemnego nieba i inne inicjatywy
Izera dark sky park and other initiatives
Autorzy:
Mrozek, T.
Kolomanski, S.
Wydawca:
Uniwersytet Warszawski. Wydział Geografii i Studiów Regionalnych
Powiązania:
https://bibliotekanauki.pl/articles/2078769.pdf  Link otwiera się w nowym oknie
Opis:
Historia europejskich obszarów ciemnego nieba zaczęła się 4 listopada 2009 r. w Jizerce - małej osadzie położonej na „końcu świata” - w momencie utworzenia Izerskiego Parku Ciemnego Nieba (IPCN). Dziś takich obszarów w Europie jest już kilkanaście, a niektóre z nich powstały dzięki inspiracji IPCN. Wszystkie je łączy jeden cel - powstrzymać światło „zalewające” noc. Osiągnięcie go wymaga podnoszenia społecznej świadomości skutków zanieczyszczenia światłem. Obszary ciemnego nieba idealnie nadają się do realizacji tego zadania. Oglądanie pięknego, nocnego nieba, atrakcyjnego wizualnie, staje się w tym wypadku punktem wyjścia do poruszenia tematu zanieczyszczenia światłem. Ideą przyświecającą zakładaniu obszarów ciemnego nieba jest nie tylko zachowanie tam ciemności, ale i prowadzenie astroturystyki. Izerski Park Ciemnego Nieba jest częścią astroturystycznego projektu Astro Izery, który łączy walory turystyczne i przyrodnicze Gór Izerskich z edukacją astronomiczną pod wspaniałym, rozgwieżdżonym niebem. W ramach realizowanego na terenie IPCN projektu wykorzystuje się proste instrumenty astronomiczne (gnomon, zegar słoneczny) i ścieżkę dydaktyczną „Model Układu Słonecznego” oraz organizuje się imprezy astronomiczne dla szerokiej publiczności.
The history of the dark sky areas in Europe began on the 4th November 2009 in Jizerka - a small village situated on the „end of the world” - at the time of the creation of Izerski Dark Sky Park (Pol. Izerski Park Ciemnego Nieba - IPCN). And that was just the beginning. Today, the number of such areas in Europe exceeded ten, and some of the se were created by inspiration of IPCN. They all have one common goal - to stop light „flooding” night. Achieving this goal requires public awareness of the effects of light pollution. Dark sky areas are ideal for this task, because observing the beautiful night sky is the starting point for talking about light pollution. However, these areas are not only dark but also they have become a destination for astro-tourists. Izerski Dark Sky Park is a part of the astro-tourism project Astro Izery that combines tourist attraction of Izera Valley and astronomical education under the magnificent starry Izera's sky. Besides the IPCN, the project consists of a set of simple astronomical instruments (gnomon, sundial), nature trail „model of the solar system” and astronomical events for the public.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental analysis of navigational precision for dedicated GNSS receivers
Autorzy:
Słowik, M.
Mrozek, T.
Tematy:
GNSS receivers
DGPS measurements
GPS
GLONASS
GNSS
nawigacja
odbiornik GNSS
Pokaż więcej
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Powiązania:
https://bibliotekanauki.pl/articles/387492.pdf  Link otwiera się w nowym oknie
Opis:
In the paper experimental investigations related with analysis of navigational precision of three chosen GNSS receivers are shown. Used receivers allow for measurement of navigational signals in following modes of operations: receiving signals from singlefrequency GPS system, dual-frequency GPS/GLONASS system, and receiving signals from GPS constellation with use of differential measurements. In the last mode the base station and mobile receiver were configured for transmitting/receiving differential corrections by pair of industry-grade radio modems. The most important features and configuration of navigational receivers for conducted experiment are presented. Afterward the features of computer program designed especially for simultaneous acquisition, analysis of quality parameters and archiving of navigational signals are shown. The results of conducted investigations are also shown. For each of the receivers quantity and quality parameters such as maximum and minimum numbers of visible satellites and DOP (dilution of precision) parameters achieved during the experiment are given.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Landslide susceptibility assessment: a case study from Beskid Niski Mts., Carpathians, Poland
Autorzy:
Mrozek, T.
Poli, S.
Steracchini, S.
Zabuski, L.
Tematy:
mapa podatności osuwiskowej
Beskid Niski
landslide susceptibility map
Beskid Niski Mts.
Pokaż więcej
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Powiązania:
https://bibliotekanauki.pl/articles/1186178.pdf  Link otwiera się w nowym oknie
Opis:
This study involves the integration of multiple thematic datasets for landslide susceptibility assessment through spatial prediction models. The proposed methodology has been applied in the Bystrzanka-Biczyska area (Beskid Niski Mts., Carpathians Mts., Poland), characterised by a very high density of landslides. The susceptibility assessment has been based on an indirect bivariate statistical analysis ("Weights of Evidence" modelling technique, Bonham-Carter et al., 1989) performed in order to predict the occurrence of an event (landslide) where well-known evidences (predictor variables) are available. According to the relative importance of each evidence, a landslide susceptibility map has been produced. Observing final prediction results, it is concluded that the susceptibility map gives useful information both on present instability of the area and its possible future evolution in agreement with the morphological evolution of the area.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Landslide processes in a flysch massif - case study of the Kawiory landslide, Beskid Niski Mts. (Carpathians, Poland)
Autorzy:
Zabuski, L.
Wójcik, A.
Gil, E.
Mrozek, T.
Raczkowski, W.
Tematy:
Carpathian flysch
landslide
monitoring
numerical simulation
Pokaż więcej
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Powiązania:
https://bibliotekanauki.pl/articles/2059216.pdf  Link otwiera się w nowym oknie
Opis:
Geological setting and precipitation triggers seem to be obvious parameters controlling landslides, but their relation to individual sliding processes has not been clear. We take on interdisciplinary approach (combining Earth science methods with an engineer ing-geotechnical approach) to examine sliding processes in the Kawiory landslide in the Polish Carpathians. Field parameters were obtained from inclinometer monitoring, meteorological records, piezometer data and geomechanical tests. Numerical simulation of the landslide development was performed, both for the reconstruction of the internal deformation phenomena on the slope and for approximate prediction of its future behaviour. An empirical formula describing the relationship between the depth of groundwater level (GWL) and precipitation is presented. The case study showed that for the ob served quasi-continuous creep, the depth and in particular the intensity of GWL fluctuations might be crucial.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Landslide susceptibility and risk assessment in a non-mountainous region : a case study of Koronowo, northern Poland
Autorzy:
Mrozek, T.
Laskowicz, I.
Zabuski, L.
Kulczykowski, M.
Świdziński, W.
Tematy:
landslide hazard
risk evaluation
non-mountainous landscape
land-use plans
Brda valley
Pokaż więcej
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Powiązania:
https://bibliotekanauki.pl/articles/2059949.pdf  Link otwiera się w nowym oknie
Opis:
The study deals with landslide threats in a low-relief region which exemplifies an area rarely perceived as prone to such geohazards. Actually, in the gently undulated landscape in the vicinity of Koronowo at the Brda River (South Pomeranian Lake District, northern Poland) intensified landsliding was observed in the recent years. The field mapping and examination of air photos showed that endangered terrains are fairly extensive and cannot be limited to initially identified slope failure incidences (hot-spots). The devised landslide susceptibility and hazard map is an outcome of predictive modelling using empirical likelihood ratio function (LR) with respect to seven evidential layers: elevation, slope angle, slope aspect, flow accumulation, surface deposits, depth to glacial raft, land cover as well as the landslide scars. The values of potential losses were calculated based on the mapped land-use categories and current market prices of estates and services. The final map, which resulted from combining landslide hazard with potential losses, shows damage propensity in a spatial scale of the town surroundings. It is meant as a supportive tool for decision-making with regard to allocating funds for stabilization measures or planning placement of new investments. On this background, stabilization solutions for selected sites are assessed in a cost-benefit context.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kompleksowe badania osuwisk w dolinie Brdy w Koronowie k. Bydgoszczy
Complex investigations of landslides in the Brda river valley in Koronowo near Bydgoszcz
Autorzy:
Zabuski, L.
Mrozek, T.
Świdziński, W.
Kulczykowski, M.
Laskowicz, I.
Tematy:
landslides
monitoring
Brda river valley in Koronowo
osuwiska
dolina Brdy w Koronowie
Pokaż więcej
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Powiązania:
https://bibliotekanauki.pl/articles/2075162.pdf  Link otwiera się w nowym oknie
Opis:
In the recentyears intensified landslidingwas observed in the surroundings and in the town of Koronowo near Bydgoszcz. (Krajeñskie Lake District). The gently undulated moraine upland, a wide valley of the Brda river, its relatively steep valleysides and incised valleys of tributaries are morphologicfeatures related to modeling by North Polish Glaciation. Quaternary tills alternated with fluvioglacial sands and gravels are underalined by Miocene clay and mud with brown coal intercalations. Due to such morphologic and geologic setting the study area isprone to slope instability. Failure apt soil massifs were assigned to 4 groups. Out of 32 identified landslides, 9 were selected for detailed examination. To register a nature and rate of failures a complex monitoring system was installed on slopes where the selected landslides resulted in severe damages to municipal infrastructure. The system was facilitated with inclinometers andpiezometers, supported by a network of GPS-RTK geodetic benchmarks as well as with a recording weather station. The performed examination revealed that the most unfavourable arrangement of the layers is, when under a non-cohesive soil (e.g. sand, gravel) lies a cohesive impermeable layer (e.g. clay, loam). The landslides are rather shallow ones (except 2 incidents) with slow rate of displacement of an order offew mm/year. The landslide triggeringfactor is water originatingfrom precipitation and snow melting. Influence of water was especially significant in early Spring 2011, due to the combined effect ofsnow melting and infiltration of thawing water originating from the former, exceptionally high rainfalls. The influence of hydrologic conditions on slope deformations is complex. There is a significant timelag between a movement initiation and unfavourable hydrometeorological conditions. That is exemplified with the landslide that was initiated in February-March 2011 in consequence of atmospheric conditions of November-December 2010. The obtained results formed the background for inventing engineering treatment measures aiming at current remedial stabilization of slopes and mitigation ofpossible landsliding in the future.
Dostawca treści:
Biblioteka Nauki
Artykuł

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