11 research outputs found
Traineeships as a form of improvement of Geoinformation students' professional competences on the labour market
No full textThe today's labour market poses serious challenges to be faced by higher education graduates. Job applicants' specialised substantial knowledge, well-developed interpersonal competencies and - not rarely - professional experience are the essential features which are mostly appreciated by employers. Inexperienced 'fresh' higher education graduates often lack these requisite abilities and skills, which makes them hard to find their way in the labour market and get their dream job.
In 2015 at the Adam Mickiewicz University - thanks to the initiative of two faculties - the "Bridge to the labour market" traineeship program was launched, which was attended by last-year students. The project was funded under the 'Human Capital' Operational Program, Priority IV Higher education and science. The article shows the key assumptions and results of the project
Morphodynamics of slumps on Wolin island cliffed coast
No full textWydział Nauk Geograficznych i Geologicznych: Instytut/Katedra Geoekologii i GeoinformacjiGłównym problemem pracy jest morfodynamika zerw na wybrzeżu klifowym wyspy Wolin ze szczególnym uwzględnieniem etapów ich rozwoju. Podstawowe cele badawcze dotyczyły określenia uwarunkowań wpływających na rozwój zerw, ustalenia wartości progowych czynników morfogenetycznych a także określenie wpływu procesów ponadprzeciętnych i ekstremalnych na powstawanie i rozwój zerw. Ważnym efektem realizowanego problemu badawczego było przedstawienie modelu rozwoju zerw. Szczegółowe badania geomorfologiczne, geotechniczne, geodezyjne i dendrogeomorfologiczne przeprowadzone zostały na czterech zerwach zlokalizowanych na odcinku wybrzeża klifowego położonego pomiędzy Grodnem a Białą Górą. Podstawą wydzielenia zerw było zróżnicowanie morfologiczne, morfometryczne, etap rozwoju i przejawy aktywności. Przeprowadzone badania pozwoliły stwierdzić, iż zerwy stanowią ważny element rzeźby wolińskich klifów. Badane formy cechują się małym zróżnicowaniem litologicznym, najczęściej powstają w utworach względnie jednorodnych, w przypadku których cechy odpornościowe osłabiają się w miarę zbliżania do strefy krawędziowej klifu. Dynamika zerw warunkowana jest przede wszystkim wezbraniami sztormowymi i opadami atmosferycznymi. Badania zerw wykazały również, że ich dynamika często warunkowana jest aktualnym stanem wód gruntowych, który pozostaje w ścisłym powiązaniu z opadami atmosferycznymi. Na podstawie przeprowadzonych badań stwierdzono, iż zmienność morfologiczna zerw cechuje się wyraźną etapowością. W trakcie ewolucji zerwy przechodzą przez trzy fazy rozwoju: inicjacji, transportu i degradacji.The main problem of the study was morphodynamics of slumps on Wolin island cliffed coast with particular emphasis on the stages of their development. The main goal of the study was to define determination of conditions affecting slumps development, determination of threshold values of morphogenetic factors and to determine the effect of extraordinary and extreme processes in the slumps formation and development. Geomorphological and geotechnical studies, geodetic surveys and dendrogeomorphological analyses have been carried out on four slumps located on the stretch of coast cliffs located between Grodno and Biała Góra. The basis of slumps selection was morphological and morphometrical differentiation, stage of development and dynamics. The investigations have shown that slumps are a special type of Wolin island cliffed coast morphology. The studied forms are characterized by small variations in lithology, usually arise in relatively homogeneous sediments, where the characteristics of resistance properties decreases as it approaches the cliff-edge zone. The dynamics of slumps is mainly conditioned by storm surges and rainfalls. The study also showed that morphological variability of slumps is conditioned by current level of groundwater which is in close association with precipitation. On the base of undertaken studies, the conclusion, that morphodynamics of slumps is characterized by three stages of evolution: initiation, transportation and degradation, was made
Cliff Retreat Induced by Series of Storms at Miȩdzyzdroje (Poland)
No full textIn Miȩdzyzdroje, a coastal town in Poland, significant cliff retreat has been observed in recent times. It used to be considered mainly a response to storm events with particularly high water levels and wave energy. However, morphology of cliff coasts is shaped not only by the most extreme storm surges or by a number of accompanying processes such as precipitation. Much wider effects are now being linked to the occurrence of series of subsequent storms. This research uses a set of five terrestrial LiDAR surveys carried out between November 2016 and April 2017 to determine short-term cliff erosion associated with two major storm surges and several smaller storms. The surveys covered the whole cliff profile as well as the topography of the adjacent beach. Results indicate a considerable reduction in beach levels as a first important effect. Frequency of the storm events prevented the beach from recovering between the surges, allowing the waves to directly attack the cliff base. Consequently, the cliff foot line retreated up to 4.7 m. This resulted in an erosion volume exceeding 25.000 m within 5 sections of the coastal cliff analysed, which are 500 m long in total. This work demonstrates that the development of the coastline is not only directly linked with the rate of erosion at given storm parameters. More importantly, the frequency of extreme events has to be considered.Hydraulic Structures and Flood Ris
Assessment of Moraine Cliff Spatio-Temporal Erosion on Wolin Island Using ALS Data Analysis
No full textThe aim of the article is to present the temporal and spatial variability of the cliff coast erosion of the Wolin Island in 2012–2020 in three time periods (2012–2015, 2015–2018, 2018–2020). The research used data from airborne laser scanning (ALS), based on which DEM models were made. Based on the differences between the models, the amount of sediment that was eroded by the sea waves was determined. The conducted research showed that, in the analyzed period, the dynamics of the Wolin cliffs were characterized by high variability. The greatest erosion was observed on sandy cliffs, and the smallest on clay cliffs and on cliffs that are densely covered with vegetation. In the sediment budget studies, two seashore erosivity indicators were proposed: length-normalized sediment budget (LB) (m3/m) and area-normalized sediment budget (AB) (m3/m2). The average annual dynamics of the cliff edge erosion on the Wolin Island was found to be LB = 6.6 ± 0.3 m3/m/a, AB = 0.17 ± 0.01 m3/m2/a. The results obtained are comparable with other postglacial cliffs. The use of the differential analysis of DEM models allows for the determination of the dynamics of the cliff coast and may be used in spatial development and planning of seashore protection zones
Lithological conditions of soil erosion in the Chwalimski Potok catchment (the Drawskie Lakeland) at the background of selected geotechnical analyses
No full textIndividual natural environment features and landscape and tourist values of the Cephalantero rubrae-Fagetum habitat on Wolin Island
No full textThe cliffed coast in Wolin National Park is especially valued in terms of biogeography. The coastal area is highly valuable not only in view of the abiotic advantages offered by the natural environment but also due to the presence of valuable plant associations. A coastal orchid beech forest – the Cephalanthero rubrae-Fagetum habitat – is a site that is unique in Poland, in Europe and in the whole world. This plant association is found only on the cliffed coast of Wolin Island in Poland in specific hydrometeorological, morphodynamic and soil conditions. The main aim of this study was a qualitative and quantitative description of the Cephalanthero rubra-Fagetum site, including determining its present range and species composition. In addition, the studied cliffed coast area was evaluated in terms of its visual attractiveness based on the aspects of geodiversity and biodiversity of landscape. Field studies corroborated the outstanding landscape values determining the attractiveness of the study area to tourists. The cliffed coast section, Grodno-Biała Góra, features unique environmental characteristics that are absent from the remaining part of the coastal area of the Baltic. A peculiar characteristic of geodiversity in that zone is the presence of the highest seashore in Poland where natural hydrodynamic and geomorphological processes occur free of human interference. This is the only part of the seashore featuring a unique soil, the so-called cliff naspa, on which orchid birch forests grow. This biodiverse plant community comprised 113 species of vascular plants among which 7 species of Orchidaceae were identified. The landscape values of the studied area of the Wolin National Park are further enhanced by two attractive tourist hiking trails and a vantage point on top of Gosań hill
Morphological and lithological features of the erosiondenudation valley (Zielony Parów catchment) on the cliff coast of Wolin Island
No full textErosion-denudation valleys are an important element of the relief of the cliff coast of Wolin Island. Detailed research covered the Zielony Parów catchment area with an area of approximately 9.57 ha. The length of the studied form is 491 m. Lithological studies have shown that the bottom of the valley is composed of sandy sediments with a poor and moderate sorting. The data obtained from the airborne laser scanning (ALS) made it possible to conduct a study of the morphometric conditions of the catchment area. In the first stage, a digital elevation model (DEM) with a resolution of 1 m was created, which was then used to create a series of morphometric models. The analyses carried out made it possible to present a quantitative assessment of the valley morphology and to indicate the areas most susceptible to water erosion processes. The differences between the maximum height measured at the top of the valley slope (Hmax) and the minimum height at the bottom of the valley (Hmin) are 66.4 m. The data indicate a high potential energy of the relief. The maximum valley depth is 34 m. The catchment area is dominated by strongly inclined and steep slopes. Using erosion potential indices (LS-factor, SPI) allowed the selection of areas most susceptible to water erosion. In the analysed area, slopes in the south-eastern and western parts of the catchment show a high erosion potential
Cliff top recession rate and cliff hazards for the sea coast of Wolin Island (Southern Baltic)
No full textEffects of Geomorphological Processes and Phytoclimate Conditions Change on Forest Vegetation in the Pomeranian Bay Coastal Zone (Wolin National Park, West Pomerania)
No full textThe functioning of plant associations, including forest associations, in the coastal cliff edge zone of the Pomeranian Bay in the Wolin National Park (WNP) is determined by short-term factors related to the dynamics of erosion and denudation processes and long-term phytoclimatic conditions' changes. The study presents a temporary analysis of the occurrence of sea abrasion and water and aeolian erosion, based on the applied hydrometeorological threshold values. The influence of changes in phytoclimatic conditions on the development and productivity of coastal forests with the dominant species of Fagus sylvatica was also presented. Assessments of spatial susceptibility to erosion of the cliff coast and the existing plant associations were also carried out in conditions of the risk of coast erosion. It was found that 55% of the cliff edge zone of the Pomeranian Bay of the WNP and the forest associations (mainly Luzulo pilosae-Fagetum) occurring there are in the zone of particular risk of increased erosion and denudation processes. In addition, unfavourable trends in changes in phytoclimatic conditions in the 21st century were found, which reflect climate changes unfavourable to the development of beech forests on Wolin Island
Effects of geomorphological processes and phytoclimate conditions change on forest vegetation in the Pomeranian Bay coastal zone (Wolin National Park, West Pomerania)
No full textThe functioning of plant associations, including forest associations, in the coastal cliff edge zone of the Pomeranian Bay in the Wolin National Park (WNP) is determined by short-term factors related to the dynamics of erosion and denudation processes and long-term phytoclimatic conditions’ changes. The study presents a temporary analysis of the occurrence of sea abrasion and water and aeolian erosion, based on the applied hydrometeorological threshold values. The influence of changes in phytoclimatic conditions on the development and productivity of coastal forests with the dominant species of Fagus sylvatica was also presented. Assessments of spatial susceptibility to erosion of the cliff coast and the existing plant associations were also carried out in conditions of the risk of coast erosion. It was found that 55% of the cliff edge zone of the Pomeranian Bay of the WNP and the forest associations (mainly Luzulo pilosae-Fagetum) occurring there are in the zone of particular risk of increased erosion and denudation processes. In addition, unfavourable trends in changes in phytoclimatic conditions in the 21st century were found, which reflect climate changes unfavourable to the development of beech forests on Wolin Island
