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    Wyświetlanie 1-8 z 8
    Tytuł:
    Footprint areas of pollen from alder (Alnus) and birch (Betula) in the UK (Worcester) and Poland (Wroclaw) during 2005–2014
    Obszary źródłowe pyłku olszy (Alnus) i brzozy (Betula) w Wielkiej Brytanii (Worcester) i Polsce (Wrocław), w latach 2005–2014
    Autorzy:
    Skjoth, C.A.
    Bilinska, D.
    Werner, M.
    Malkiewicz, M.
    Adams-Groom, B.
    Kryza, M.
    Drzeniecka-Osiadacz, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/27458.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Botaniczne
    Tematy:
    footprint
    pollen
    alder
    Alnus
    birch
    Betula
    Worcester
    Polska
    Wroclaw city
    2005–2014 period
    climate
    seasonality
    source
    Opis:
    In this study we analyzed daily pollen concentrations of Alnus spp. and Betula spp. from Worcester, UK and Wrocław, Poland. We analyzed seasonality, annual pollen index and footprint areas for the observed pollen concentrations by using the trajectory model hybrid single particle Lagrangian integrated trajectory (HYSPLIT). We examined 10 years of data during the period 2005–2014 and found substantial differences in the seasonality, pollen indices and footprint areas. For both genera, concentrations in Wrocław are in general much higher, the seasons are shorter and therefore more intense than in Worcester. The reasons appear to be related to the differences in overall climate between the two sites and more abundant sources in Poland than in England. The footprint areas suggest that the source of the pollen grains are mainly local trees but appear to be augmented by remote sources, in particular for Betula spp. but only to a small degree for Alnus spp. For Betula spp., both sites appear to get contributions from areas in Germany, the Netherlands and Belgium, while known Betula spp. rich regions in Russia, Belarus and Scandinavia had a very limited impact on the pollen concentrations in Worcester and Wrocław. Substantial and systematic variations in pollen indices are seen for Betula spp. in Wrocław with high values every second year while a similar pattern is not observed for Worcester. This pattern was not reproduced for Alnus spp.
    Praca dotyczy dobowych stężeń pyłku olszy (Alnus spp.) oraz brzozy (Betula spp.) notowanych w Worcester (Wielka Brytania) oraz we Wrocławiu (Polska). Przeanalizowano sezonowość, indeks pyłkowy oraz obszary źródłowe pyłku przy zastosowaniu modelu HYSPLIT (hybrid single particle Lagrangian integrated trajectory model). W badaniu uwzględniono dane pomiarowe z okres 10 lat (2005–2014). Zaobserwowano istotne różnice w sezonowości, indeksie pyłkowym oraz obszarach źródłowych dla dwóch analizowanych lokalizacji. Zarówno dla olszy, jak i dla brzozy, stężenia pyłku są na ogół znacznie wyższe i sezon pyłkowy jest krótszy we Wrocławiu, stąd też jest on bardziej intensywny, niż w Worcester. Wynika to najprawdopodobniej z różnic w warunkach klimatycznych pomiędzy dwoma stacjami i z większej liczby lokalnych źródeł pyłku w Polsce niż w Anglii. Obliczenia przeprowadzone z modelem HYSPLIT wskazują, że źródłem ziaren pyłku są głównie drzewa lokalne, ale zaznacza się również rola transportu odległego, ale w szczególności w przypadku pyłku brzozy, a tylko w niewielkim stopniu w przypadku olszy. W przypadku brzozy, na stężenie pyłku notowanego w obu stacjach istotnie wpływa pyłek pochodzący z obszaru Niemiec, Holandii i Belgii, podczas gdy powszechnie znane obszary źródłowe w Rosji, Białorusi i Skandynawii mają bardzo ograniczony wpływ na stężenie pyłku w Worcester i we Wrocławiu. Ponadto zaobserwowano wyraźne, systematyczne zróżnicowanie indeksu pyłkowego brzozy we Wrocławiu, z wysokimi wartościami występującymi co drugi rok. Podobna zależność nie jest obserwowana dla Worcester. Wyraźnych zróżnicowań indeksu pyłkowego pomiędzy latami nie notowano dla olszy w żadnej z lokalizacji.
    Źródło:
    Acta Agrobotanica; 2015, 68, 4
    0065-0951
    2300-357X
    Pojawia się w:
    Acta Agrobotanica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An assessment of the quality of near-real time GNSS observations as a potential data source for meteorology
    Autorzy:
    Dymarska, N.
    Rohm, W.
    Sierny, J.
    Kapłon, J.
    Kubik, T.
    Kryza, M.
    Jutarski, J.
    Gierczak, J.
    Kosierb, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/108476.pdf
    Data publikacji:
    2017
    Wydawca:
    Instytut Meteorologii i Gospodarki Wodnej - Państwowy Instytut Badawczy
    Tematy:
    ZTD estimation
    data validation
    GNSS meteorology
    Opis:
    The Global Navigation Satellite System (GNSS) can be used to determine accurate and high-frequency atmospheric parameters, such as Zenith Total Delay (ZTD) or Precipitable Water Vapour (PW), in all-weather conditions. These parameters are often assimilated into Numerical Weather Prediction (NWP) models and used for nowcasting services and climate studies. The effective usage of the ZTDs obtained from a ground-based GNSS receiver’s network in a NWP could fill the gap of insufficient atmospheric water vapour state information. The supply of such information with a latency acceptable for NWP assimilation schemes requires special measures in the GNSS data processing, quality control and distribution. This study is a detailed description of the joint effort of three institutions – Wrocław University of Environmental and Life Sciences, Wrocław University, and the Institute of Meteorology and Water Management – to provide accurate and timely GNSS-based meteorological information. This paper presents accuracy analyses of near real-time GNSS ZTD validated against reference ZTD data: the International GNSS Service (IGS) from a precise GNSS solution, Weather Research and Forecasting (WRF) model, and radiosonde profiles. Data quality statistics were performed for five GNSS stations in Poland over a time span of almost a year (2015). The comparison of near real-time ZTD and IGS shows a mean ZTD station bias of less than 3 mm with a related standard deviation of less than 10 mm. The bias between near real-time ZTD and WRF ZTD is in the range of 5-11 mm and the overall standard deviation is slightly higher than 10 mm. Finally, the comparison of the investigated ZTD against radiosonde showed an average bias at a level of 10 mm, whereas the standard deviation does not exceed 14 mm. Considering the data quality, we assess that the NRT ZTD can be assimilated into NWP models.
    Źródło:
    Meteorology Hydrology and Water Management. Research and Operational Applications; 2017, 5, 1; 3-13
    2299-3835
    2353-5652
    Pojawia się w:
    Meteorology Hydrology and Water Management. Research and Operational Applications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    HydroProg: a system for hydraulic forecasting in real time, based on the multimodelling approach
    Autorzy:
    Niedzielski, T.
    Miziński, B.
    Kryza, M.
    Netzel, P.
    Wieczorek, M.
    Kasprzak, M.
    Migoń, P.
    Szymanowski, M.
    Jeziorska, J.
    Witek, M.
    Kosek, W
    Powiązania:
    https://bibliotekanauki.pl/articles/108558.pdf
    Data publikacji:
    2014
    Wydawca:
    Instytut Meteorologii i Gospodarki Wodnej - Państwowy Instytut Badawczy
    Tematy:
    hydrology
    ensemble prediction
    multimodelling
    real time prognosis
    Kłodzko District
    Opis:
    Aleja Mickiewicza 24/28, 30-059 Kraków, Poland Abstract: The objective of this paper is to present the concept of a novel system, known as HydroProg, that aims to issue flood warnings in real time on the basis of numerous hydrological predictions computed using various models. The core infrastructure of the system is hosted by the University of Wrocław, Poland. A newly-established computational centre provides in real time, courtesy of the project Partners, various modelling groups, referred to as “project Participants”, with hydrometeorological data. The project Participants, having downloaded the most recent observations, are requested to run their hydrologic models on their machines and to provide the HydroProg system with the most up-to-date prediction of riverflow. The system gathers individual forecasts derived by the Participants and processes them in order to compute the ensemble prediction based on multiple models, following the approach known as multimodelling. The system is implemented in R and, in order to attain the above-mentioned functionality, is equipped with numerous scripts that manipulate PostgreSQL- and MySQL-managed databases and control the data quality as well as the data processing flow. As a result, the Participants are provided with multivariate hydrometeorological time series with sparse outliers and without missing values, and they may use these data to run their models. The first strategic project Partner is the County Office in Kłodzko, Poland, owner of the Local System for Flood Monitoring in Kłodzko County. The experimental implementation of the HydroProg system in the Nysa Kłodzka river basin has been completed, and six hydrologic models are run by scientists or research groups from the University of Wrocław, Poland, who act as Participants. Herein, we shows a single prediction exercise which serves as an example of the HydroProg performance.
    Źródło:
    Meteorology Hydrology and Water Management. Research and Operational Applications; 2014, 2, 2; 65-72
    2299-3835
    2353-5652
    Pojawia się w:
    Meteorology Hydrology and Water Management. Research and Operational Applications
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ambiguous geological position of Carboniferous rhyodacites in the Intra-Sudetic Basin (SW Poland) clarified by SHRIMP zircon ages
    Autorzy:
    Kryza, R.
    Awdankiewicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2058977.pdf
    Data publikacji:
    2012
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Sudetes
    Variscan orogeny
    Carboniferous
    SHRIMP zircon dating
    volcanism
    subvolcanic intrusions
    Opis:
    Rhyodacite sheets (the Sady Górne Rhyodacites) in the lowermost part of the Permo-Carboniferous Intra-Sudetic Basin molasse fill have been mapped as intrusives but, later on, based on ambiguous field and petrographic evidence, reinterpreted as lower Carboniferous lavas and tuffs; if so, they would mark the earliest episode of late-orogenic volcanism in the Intra-Sudetic Basin and in the whole Sudetes region in SW Poland. However, re-examination of field relationships and new observations are consistent with an intrusive emplacement of the rhyodacites as conformable to semiconformable, simple to composite sheets. SHRIMP zircon study indicates that the rhyodacites contain rare inherited zircons of ca. 560 Ma, and ca. 470 Ma (or slightly older), and a main population of zircons with an average concordia age of 306.1 š2.8 Ma. This latter age documents the emplacement of the rhyodacites during a mid/late late Carboniferous (Westphalian) stage of volcanism in the Intra-Sudetic Basin in the Central European Variscides. This post-orogenic volcanism was possibly initiated several million years later than previously assumed, and could have comprised a few pulses over a relatively prolonged time span of millions of years.
    Źródło:
    Geological Quarterly; 2012, 56, 1; 55-66
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Local and exotic building and decorative stones in historical castles of SW Poland : a reconnaissance study
    Autorzy:
    Kryza, R.
    Dziedzic, M.
    Unterwurzacher, M.
    Prell, M.
    Pietrzykowska, K.
    Strick, D.
    Schumacher, V.
    Wilhelm, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/2066809.pdf
    Data publikacji:
    2015
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    castles
    Lower Silesia
    SW Poland
    building stone
    decorative stone
    architectural heritage
    cultural heritage
    zamek
    Dolny Śląsk
    Polska
    kamień budowlany
    kamień dekoracyjny
    dziedzictwo architektoniczne
    dziedzictwo kulturowe
    Opis:
    South-west Poland (Silesia) is the region of dramatic history which has left significant heritage, comprising, e.g., numerous historical castles. In this paper, we describe selected castles in Lower Silesia, with special attention given to the usage of exotic (imported) decorative stone materials traded across Europe in various historical periods. Out of the total number of c. 100 historical castles and palaces in SW Poland, only three of them, i.e. Czocha, Ksi¹¿ and Moszna, have preserved significant amount of the original stone decoration. In Czocha Castel, apart from local stones, we have identified, e.g.: red and white, and grey limestones (from Belgium, Germany or Italy). In Ksi¹¿ Castle, the interiors have a great variety of exotic stone materials: travertine, marbles and limestones, e.g. Rosso di Francia, and many others, mostly from France and Italy. In Moszna Castle, representative rooms are adorned with “marbles”: Rosso di Verona, Giallo di Verona, Giallo Siena, Rosso di Francia, and serpentinites and ophicalcites (from Austria and Italy). Most of the exotic stones in the three castles studied were imported at the turn of the 19th–20th centuries and in the early 20th century, when the castles were largely reconstructed and redecorated.
    Źródło:
    Przegląd Geologiczny; 2015, 63, 6; 332--344
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Gneiss protolith ages and tectonic boundaries in the NE part of the Bohemian Massif (Fore-Sudetic Block, SWPoland
    Autorzy:
    Oberc-Dziedzic, T.
    Kryza, R.
    Klimas, K.
    Fanning, M.C.
    Madej, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059703.pdf
    Data publikacji:
    2005
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Bohemian Massif
    East-West Sudetes boundary
    zircon ages
    Opis:
    Published geochronological data, petrology, geochemistry and geological context of orthogneisses in the Strzelin and the Stachów complexes (NE-part of the Fore-Sudetic Block), together with structural observations help to locate the northern extension of the boundary between the East and West Sudetes within the poorly exposed NE margin of the Bohemian Massif. The Strzelin complex, in the east, comprises the Strzelin gneiss, with zircon ages of 600š7 and 568š7Ma, and the Nowolesie gneiss with a mean zircon age of 1020_ 1Ma. The Stachów complex to the west, which forms several tectonic klippen in the Strzelin Massif and in the Lipowe Hills Massif, contains the Gościęcice gneiss and pale Stachów gneiss, both yielding Late Cambrian zircon ages (~500š5 Ma). The orthogneisses in both complexes correspond to peraluminous S-type granites, but have different inherited zircon ages and display contrasting trace element characteristics, indicating different sources and petrogenetic histories. Based on the ages, petrology and overall geological context, the Strzelin orthogneiss is similar to the Keprník orthogneiss of the East Sudetes, whereas the orthogneisses of the Stachów complex correspond to rocks known from theWest Sudetes (e.g. the Izera and Śnieżnik orthogneisses). The Stachów and the Strzelin complexes are separated by the Strzelin Thrust, which may be interpreted as the northern extension of the boundary between the East and West Sudetes, i.e. part of the boundary between the Brunovistulian and Moldanubian terranes of the NE part of the Bohemian Massif.
    Źródło:
    Geological Quarterly; 2005, 49, 4; 363--378
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A toolkit for storage QoS provisioning for data-intensive applications
    Autorzy:
    Słota, R.
    Król, D.
    Skałkowski, K.
    Orzechowski, M.
    Nikolow, D.
    Kryza, B.
    Wrzeszcz, M.
    Kitowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/305571.pdf
    Data publikacji:
    2012
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    data-intensive application
    storage management
    QoS
    grid
    Opis:
    This paper describes a programming toolkit developed in the PL-Grid project, named QStorMan, which supports storage QoS provisioning for data-intensive applications in distributed environments. QStorMan exploits knowledgeoriented methods for matching storage resources to non-functional requirements, which are defined for a data-intensive application. In order to support various usage scenarios, QStorMan provides two interfaces, such as programming libraries or a web portal. The interfaces allow to define the requirements either directly in an application source code or by using an intuitive graphical interface. The first way provides finer granularity, e.g., each portion of data processed by an application can define a different set of requirements. The second method is aimed at legacy applications support, which source code can not be modified. The toolkit has been evaluated using synthetic benchmarks and the production infrastructure of PL-Grid, in particular its storage infrastructure, which utilizes the Lustre file system.
    Źródło:
    Computer Science; 2012, 13 (1); 63-73
    1508-2806
    2300-7036
    Pojawia się w:
    Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Northwest Africa 7915: A New approved LL5 chondrite from Morocco
    Autorzy:
    Brawata, M.
    Kryza, R.
    Jakubowski, T.
    Przylibski, T. A.
    Ćwiąkalski, J.
    Łuszczek, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/411506.pdf
    Data publikacji:
    2014
    Wydawca:
    Polskie Towarzystwo Meteorytowe
    Tematy:
    chondrite
    NWA 7915
    Morocco
    chondrule
    chondrite chemistry
    chondrite weathering
    Opis:
    A 415 g single meteorite was purchased in 2010 by T. Jakubowski from a dealer in Morocco. The meteorite was isometric in shape, ca. 8 cm in size, with distinct regmaglypts on the original ablated surface, and covered mostly in primary crust with one broken surface. The weight of the sample studied was 69 g. The meteorite is composed of several types of chondrules including porphyritic-Ol-Px, barred-Ol, radial-Px, granular and cryptocrystalline with distinct and diffused (not sharp) boundaries, and opaque grains and aggregates, enclosed in a very fine-grained matrix. The average compositions of minerals are: olivine (both in chondrules and matrix) − Fo70.4Fa29.1Te0.5, pyroxenes, represented by Mg-Fe (Ca-poor) orthopyroxene (and minor clinopyroxene?) − En73.9Fs24.1Wo2.0, feldspars (small in the matrix and in barred chondrules), with An12-37, and Or~3-4, taenite − Fe 70.80, Ni 25.50 and Co 1.67 wt. %, troilite − Fe0.98S1.00, chromite (Fe2+ 0.96Mg0.12Mn0.01Zn0.01) (Cr1.52Al0.23Fe3+ 0.02Ti0.10Si0.02)O4; altered accessory minerals including apatite and iron-rich secondary phases have also been identified and analyzed. The meteorite is of petrologic type 5, as evidenced by the observed recrystallization of the matrix, relatively good preservation of the chondrule structures, homogeneous composition of olivine and pyroxene, and the presence of only secondary small feldspar grains. The shock stage, S2, is based on the presence of undulatory extinction and irregular fractures in olivine crystals. The weathering grade, W3, is confirmed by the observation that kamacite is totally altered into secondary iron phases, whereas Nirich taenite, and troilite are only partly weathered. The specimen shows many bulk- and mineral-chemical parameters corresponding, mostly, to the LL chondrite group (e.g., Fe/SiO2 0.49, SiO2/MgO 1.62, Fa in olivine 29.05). However, concentrations of several other elements, including REE, are not fully consistent with the average values for the LL ordinary chondrites. Apparently, the parent body of the studied NWA 7915 meteorite was depleted in Dy, Tm, and Yb, compared to typical LL-type ordinary chondrite parent bodies. Also, relatively high concentrations of other elements, including Ba and Sr, have been measured, which may result from terrestrial weathering in hot desert conditions. The meteorite has been classified as LL5 ordinary chondrite, S2, W3, and registered in the Meteoritical Society database as NWA 7915. The type specimen is deposited in the Mineralogical Museum of the University of Wrocław.
    Źródło:
    Meteorites; 2014, 3, No. 1-2; 45-58
    2299-0313
    2299-1220
    Pojawia się w:
    Meteorites
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-8 z 8

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