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Change of grain size parameters of sediments as a result of wind activity. Barchans Jarangiyn els in Gobi, Mongolia

100%
Potocki M., Mikulska M.
Miscellanea Geographica. Regional Studies on Development
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2004
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vol. 11
81-91
EN
Research conducted on the Jarangiyn els field on the Gobi desert in Mongolia took place during the transformation of barchans resulting from the changes in wind direction. The investigation undertaken by the authors had as its goal the evaluation of the changes in the morphology of the forms, extended by the interpretation of the grain size parameters distribution in the longitudinal profiles of the dunes. The results indicate that the processes of barchan transformation are recorded in grain size parameters.
2
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Variability of textural characteristics of sandur deposits of Flaajókull and Falljókull (SE Iceland)

100%
Angiel P., Mikulska M.
Miscellanea Geographica. Regional Studies on Development
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2006
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vol. 12
111-117
EN
Studies conducted on the sandurs of Flaajókull and Falljókull aimed at the reconstruction of the dynamics of braided rivers based on the grain size parameters of deposits. The goal of the project was to estimate the degree of deposit transformation and of changes of grain size characteristics as related to the length of transport in contemporary sandur rivers.
3
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Wpływ zmian poziomu morza i procesów fluwialnych na położenie ujściowego odcinka Piaśnicy i litodynamikę osadów korytowych

75%
Szymczak E., Zabłocka D.
Prace Geograficzne
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2018
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issue 152
119-132
EN
The aim of the article is to analyse changes in the channel layout of the Piaśnica River estuary and the lithodynamic characteristic of bed deposits as a consequence of sea level changes. The analysis is based on the results of measurements in the river estuary conducted in the years 2014–2015. The data of daily average sea level were obtained from the Institute of Meteorology and Water Management (IMiGW) station in Władyslawowo and Łeba. The research documented distinct changes in the position of the riverbed. Analyses of textual indicators were conducted i.e. mean grain size (MZ), standard deviation (σI), skewness (SkI) and kurtosis (KG) were calculated according to Folk and Ward formulas (1957) using the Gradistat software. Based on the abovementioned data conclusions were made about the changing conditions of the river sediment transport.
PL
Celem artykułu jest przedstawienie zmian położenia koryta rzeki Piaśnicy w jej ujściowym odcinku oraz charakterystyka litodynamiki osadów korytowych, jako konsekwencji zmian poziomu morza. Analizę oparto na wynikach pomiarów prowadzonych w ujściowym odcinku rzeki w latach 2014–2015. Wykorzystano dane dotyczące dobowych stanów morza, pochodzące ze stacji Instytutu Meteorologii i Gospodarki Wodnej (IMGW-PIB) we Władysławowie i Łebie. W czasie prowadzonych badań udokumentowano wyraźne zmiany położenia koryta rzeki. Przeprowadzono analizy uziarnienia osadów korytowych, zinterpretowano wartości wskaźników teksturalnych, tj. średnią średnicę ziarn (MZ), wysortowanie (σI), skośność (SkI) oraz spłaszczenie (KG), obliczone metodą Folka i Warda (1957) z wykorzystaniem programu Gradistat. Na ich podstawie wnioskowano o warunkach transportu rumowiska rzecznego na tle zmieniającego się położenia koryta rzeki.
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