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Historia funkcjonowania zbiornika Jeziorsko opisana zobrazowaniami satelitarnymi Landsat

Sojka Mariusz, Nowak Bogumił, Ptak Mariusz, Jaskuła Joanna

Gospodarka Wodna

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2022

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Nr 9

5--12

PL

W pracy zaprezentowano historię funkcjonowania zbiornika Jeziorsko udokumentowaną na zobrazowaniach zarejestrowanych przez satelity Landsat. Program satelitarny Landsat prowadzony jest od 50 lat przez Narodową Agencję Aeronautyki i Przestrzeni Kosmicznej rządu Stanów Zjednoczonych oraz Amerykańską Służbę Geologiczną znaną jako USGS. Historia budowy zbiornika, a później jego funkcjonowanie zostało zarejestrowane przez wszystkie dotychczas umieszczone na orbitach satelity Landsat. Pozyskane zobrazowania prezentują zbiornik w różnych warunkach pracy wynikających z instrukcji gospodarowania wodą oraz odmiennych przepływach rzeki Warty. Zobrazowania misji Landsat pokazują dynamiczne zmiany zasięgu lustra wody w zbiorniku w ujęciu rocznym, jak i wieloletnim. Szczególnie istotne zmiany udokumentowane zostały w części południowej zbiornika, co jest następstwem procesów akumulacji osadów w ujściu rzeki Warty.

EN

The article presents the history of the Jeziersko Reservoir operation documented on images registered by the Landsat satellites. The Landsat satellite programme has been carried out for 50 years by NASA and U.S. Geological Survey (USGS). The history of the reservoir construction followed by its operation was being recorded by all the Landsat satellites placed in the orbit. The images present the reservoir in different operating conditions resulting from water management instrucctions and varying flows of the Warta River. The Landsat mission imagery shows dynamic changes in the reservoir's water table surface both annually and multi-annually. Particularly important changes were recorded in the southern part of the reservoir, which results from the sediments accumulation process in the Warta River outlet.

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Biological Soil Crusts, Plant Functional Groups, and Soil Parameters in Arid Areas of Iran

Bashtian M. H., Sepehr A., Farzam M., Bahreini M.

Polish Journal of Ecology

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2018

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Vol. 66, nr 4

337--351

EN

Biological soil crusts (BSCs) have a vital role regarding vegetation and soil development in arid and semi-arid areas in the world, and apparently in Iran, where they comprise more than 85% of the land. In this research, the relationship between BSCs and plant functional groups, considering soil parameters along an arid alluvial fan located in Khorasan Razavi province in northeastern Iran, was examined. The sampling carried out in summer, systematically from apex towards base part of alluvial fan, using a 0.25 m2 quadrat over a 5-cm thick soil surface. Surface levels were classified into three categories: apex, middle, and base. At each level, 16 samples were taken; in total 48 samples were collected along the alluvial fan from the apex point to the base district. The results showed a strong relationship between BSCs and the soil surface features, and a weak correlation between the plant functional group and soil parameters. BSCs indicated an ecological evolution from apex to the base geomorphic level by soil development; so that BSCs are more developed on the base of alluvial fan, but their diversity is reduced.

3

The sedimentary environment of Devonian siliciclastics in the Babí lom locality (Brunovistulian Platform cover, Southern Moravia, Czech Republic)

Wojewoda J., Nehyba S., Gilíkova H., Burianek D

Geological Quarterly

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2015

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Vol. 59, No. 1

229--238

EN

Sandstones and conglomerates, which northwards of Brno agglomeration build a hill (ridge) named Babí lom are strongly diagenezed (anchi-metamorphozed) and tectonically deformed. Their regional distribution and stratigraphic position between the Cambrian(?) clastics and Upper Devonian limestones, as well as their appearance meant that they age is considering as Middle Devonian. They are distinguished as the so-called „Basal Devonian Clastics“. Almost all primary sedimentary features are well preserved and distinct. In the metasediments of the Babí lom hill were distinguished both the facies and structures typical of alluvial fans and rivers. Among others they are channel lags with imbricated grains, cross beddings and debrites. Within sedimentary association was established the way-up direction what clearly evidences a coarsening upwards sequence. Assuming the lack of rotation of series of sediments in the X-Y plane, the palaeotrasport was toward the north while major supply with material was from the east.

4

Foreland provenance of thick conglomerates in the early stage of the Carpathian Foredeep development : the case of the Sloboda Conglomerate (Lower Miocene), western Ukraine

Oszczypko N., Uchman A., Bubniak I.

Geological Quarterly

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2012

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Vol. 56, No. 4

789--802

EN

The upper part of the Lower Miocene Sloboda Conglomerate, a 250–1400 m thick unit, was deposited mainly on an alluvial fan and fan delta during the early stages of Carpathian Foredeep development. During of the Old Styrian overthrust movements of the Carpathian orogen, a forebulge was formed, which supplied clasts to the conglomerate. The clasts are dominated by Late Proterozoic–Early Cambrian phyllites, while Paleozoic carbonates are common, and Mesozoic and other rocks are rare. The source area formed mainly by a prolongation of the Małopolska Massif that was involved in the forebulge; this was located close to a palaeovalley cut into Mesozoic and Paleozoic rocks, buried under younger strata. Additional material was derived from the advancing front of the Carpathian Flysch nappes.

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Aluwialne wypełnienie doliny oraz stożek napływowy na terasie zalewowej Prosny w Kościelnej Wsi (koło Kalisza) : zmienność litofacjalna i antropogeniczne uwarunkowania

Hildebrandt-Radke I.

Landform Analysis

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2011

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Vol. 16

64-68

EN

The sediment study of the alluvial bottom of Prosna river valley and of alluvial fan in the floodplain terrace, with the special attention paid to its origins, anthropogenic conditions at that time and also to lithofacial variability, enabled to draw the following conclusions. The fan was the result of erosion-denudation processes triggered after 6220š140 BP (Gd-4677) (about 4300 BC). The beginning of these processes can be associated with the Neolithic human beings activity, having taken into account conditions of the Holocene Climatic Optimum as well as presence of Neolithic cultures found in the investigated area. The lithofacial analysis of the sediments has revealed a simple fractionation sequence: D right arrow B right arrow C right arrow A for the alluvial filling of the river bottom. This indicates its accumulation as the result of meandering river activity. Cyclical lithofacies transitions for the alluvial fan sediments have been observed: A (sandy) into F (sandy-silty) and into E (silty).

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Archaeological and radiocarbon dating of alluvial fans as an indicator of prehistoric colonisation of the Głubczyce Plateau (Southwestern Poland)

Zygmunt E.

Geochronometria

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2004

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Vol. 23

101-107

EN

The development of agriculture accelerated soil erosion processes and the deposition of erosion products in the form of alluvial fans at the mouths of dry or temporarily drained valleys. The age of the alluvial fan in Borucin, in the Psina basin, has been established and the stages of its formation have been reconstructed with the use of radiocarbon dating of the roof of peat underlying the mineral sediment of the fan. The fan started to form in the second part of Suboreal period (3650 š 70 BP). Maximum fan progradation occurred at the end of the Period of Roman Influence when the area was settled by the agricultural Przeworsk culture( 1670 š 70 BP). In the Early Middle Ages, silty clays eroded from cultivated slopes no longer reached the outer fan zone, which points to a lower population density/less intensive agriculture in the area. The period of formation of the second fan under examination, located at the mouth of a side valley of the Odra, has been preliminarily determined on the basis of archaeological research. The progradation of this fan is probably related to the agricultural activity of the Lusitian Culture and forest clearances linked to the construction of a stronghold (9th-7th century BC).