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1

Assessment of human interventions presence and their impact on shoreline changes along Nile delta, Egypt

ElKotby May R., Sarhan Tharwat A., El-Gamal Mahmoud

Oceanologia

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2023

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Vol. 65 (4)

595--611

EN

Coastal erosion is a natural process, that contributed to shaping the Nile Delta shoreline in Egypt over history. The objective of this research is to investigate shoreline changes, accretion, and erosion and to detect particularly vulnerable locations that require immediate attention. Another goal is to assess the efficiency of coastal installations that have been recently implemented along the study area and determine whether they have performed their role to the fullest or need additional modifications. Several Landsat images (TM, ETM+, and OLI) were utilized over 37 years to track the shoreline changes and were analysed using remote sensing (RS) and Geographic Information System (GIS). The digital shoreline analysis system (DSAS) was integrated with the LRR model for assessing historical changes for shorelines from 1985 to 2022 and forecasting future shoreline positions in 2030, 2050, and 2100. Most of the eight zones that make up the Delta region have lately seen the establishment of coastal projects, such as the development of the Abu Qir port's breakwater in 2021. From the results, it was found that the areas around Rosetta promontory, Burullus headland, and Damietta promontory experienced a significant and rapid retreat and with large rates over the study period, with average values of –15.7, –3.25, and –16.8 m/y, respectively. However, both the coast of Alexandria, and Gamasa embayment were subjected to accretion as a prevailing case, with average rates of 2.85, and 4.03 m/y, respectively. Many groins were installed in the east of the Rosetta promontory (zone 3) in 2016 to decrease the erosion process; however, it didn't pay off and could not solve the problem. In contrast, the groins system, which was implemented at the East Kitchener Drain (zone 5) in the same year, lowered erosion rates from 17.6 m/y from 2000 to 2010 to 7 m/y from 2010 to 2022. In 2019, Y-groins built in zone 7, east of Damietta Port, succeeded in slowing rates of erosion. Finally, inlet jetties at El-Gamil (zone 8) were constructed in 2016, resulting in the coastline advancing at 14.7 m/y on average in the period of 2010–2022. The findings of this study confirmed that hard structures are dangerous because they exacerbate the problem of shoreline erosion by disseminating it to the neighbouring beaches and acting as an impediment to the movement of longshore sediments. According to the expected future shoreline patterns, it is necessary for authorities to implement both short-term and long-term protective measures to stop the erosion of several areas of the beach.

2

Vertical distribution of major and trace elements in a soil profile from the Nile Delta, Egypt

Badawy Wael, Frontasyeva Marina V., Ibrahim Medhat

Ecological Chemistry and Engineering. S

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2020

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Vol. 27, nr 2

281--294

EN

The present study was conducted to highlight the elemental composition of ten soil samples collected at different depths along of a soil profile (0.25-17 m). The collected samples were subjected to epithermal neutron activation analysis at the pulsed reactor IBR-2 of Frank Laboratory of Neutron Physics - Joint Institute for Nuclear Research - Dubna - Russian Federation. The concentrations in mg/kg of 36 major and trace elements were determined. Symbatic behaviour of geochemically related elements was observed: Th and U; Cl and Br and Fe, Ti, Ca, Al, and Mg, etc. A sharp increase of certain concentrations at the depth of 8 m was observed. Significant mafic sources of elements were observed and mostly are attributed to Ethiopian High Plateau with small amount of felsic volcanic rocks.

3

Archaeological sites in the Nile Delta landscape (Egypt). Economy, law, protection

Kołodziejczyk P.

Topiarius. Studia krajobrazowe

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2018

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Nr 6

47--62

EN

Northern Egypt was always an unusually important area for our study on the history of ancient Egyptian state. The “country of papyrus” called by Egyptians temehu, their feeder and granary, a communication centre important for contacts with Levant. Several Egyptian capitals were also located here and during the antic period the region became a centre of culture, sciences and the cradle of Coptic religion. Paradoxically, this curious area was until quite lately very poorly investigated. Even now the problems of modern Egypt related with farming activities, demographic development and industrial spread as well as with the traditional way of thinking are clearly visible in this particular important region.

4

Wyniki badań mineralogiczno-petrograficznych elementów browarów ze stanowska archeologicznego Tel el Farka, Delta Nilu, Egipt

Pawlikowski M.

Auxiliary Sciences in Archaeology, Preservation of Relics and Environmental Engineering

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2016

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nr 21

1--13

PL

Wykonano badania mineralogiczno-petrograficzne i geochemiczne materiału występującego w obiektach opisywanych dotychczas jako „browary” odkrytych w stanowisku Tell el-Farkha, Kom W i kom C. Próbki pochodziły zarówno z cegieł jak i materiału znajdującego się miedzy cegłami, Badania wykazały, że temperatury wypału ceguieł i materiału znajdującego się miedzy nimi okazjonalnie w niektórych miejscach przekraczały 800o C. Ponadto małe, pojedyncze fragmenty żużelków i ziarna metalu (żelazo z tytanem) zostały odkryte w materiale znajdującym się między cegłami. Badania dowodzą, że temperatura panująca w całych obiektach była zdecydowanie zbyt wysoka do produkcji piwa.

EN

Mineralogical, petrographical as well as geochemical investigation of so called “brewery “ discovered in Tel el Farkha archaeological site were performed. Samples of roller shape bricks as well as accompanying material for examination were collected. Examination showed temperature of firing of bricks of all discovered “brewerys” were at some places even above 800o C what is difficult obtain without additional air blowing. Observed microscopically thermal alternation of bricks of all places et examined objects was to high for production of bier. Examination confirmed at some places the presence of small fragments of Fe slag, and rare grains of metals (pure iron).

5

Mineralogical and petrographical investigation of sediments from the Tell el Farkha archaeological site, The Nile Delta – Egypt

Słowioczek E.

Auxiliary Sciences in Archaeology, Preservation of Relics and Environmental Engineering

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2016

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nr 21

1--83

EN

The first stage focuses on field studies, during which a general geological profile was prepared and samples for laboratory tests were collected. In the next stage, laboratory analyses were conducted: with the use of binocular magnifying glasses, small fractions being the result of the slaking of fragments of the samples from the profile were examined. Then, mineralogical and petrographic examinations of dried bricks were conducted—these included determining the mineral and grainy composition of samples from light and dark bricks. Later, anthropogenic examinations of coals were conducted; the aim of the analysis was to determine their sorption properties. Finally, the results were presented, which included sketches, photographs, microphotographs, tables, and diagrams; the research was summarized, and conclusions that could be drawn from it were demonstrated. The paper helped solve interesting problems on the border of mineralogy, geology, and archeology. All of the conducted research is innovative in nature and contributes much new and important information helping explore this site and the activities of people from thousands of years ago.

PL

W trakcie badań w pierwszym etapie skoncentrowano się na badaniach terenowych. Sporządzono generalny profil geologiczny oraz pobrano próbki konieczne do badań laboratoryjnych. W następnym etapie wykonano analizy laboratoryjne. Przy pomocy lupy binokularnej przyjrzano się drobnym frakcjom pochodzącym z rozlasowania fragmentów próbek z profilu. Potem przeprowadzono badania mineralogiczno-petrograficzne cegieł suszonych. Obejmowały one określenie składu mineralnego i ziarnowego próbek z cegieł jasnych i ciemnych. Później zajęto się badaniami antropogenicznych węgli. Celem analizy było określenie ich właściwości sorpcyjnych. Na zakończenie zaprezentowano wyniki badań, w których zawarto szkice, fotografie, mikrofotografie, tabele i diagramy oraz dokonano podsumowania badań i przedstawiono wnioski, jakie można z nich wyciągnąć. Powstanie pracy pozwoliło na rozwiązanie ciekawych problemów z pogranicza mineralogii, geologii i archeologii. Wszystkie przeprowadzone badania mają charakter nowatorski i wnoszą dużą ilość nowych i istotnych informacji pozwalających poznać stanowisko oraz aktywność ludzi przed tysiącami lat.

6

Sea-level change and projected future flooding along the Egyptian Mediterranean coast

Shaltout M., Tonbol K., Omstedt A.

Oceanologia

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2015

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No. 57 (4)

293--307

EN

Future sea-level changes along the Mediterranean Egyptian coast (southern Levantine sub-basin) are projected using satellite altimetry data and model simulations. Twenty-one years (1993–2013) of satellite altimetry data, represented by dynamic topography (DT), are examined in light of tide-gauge observations. Current DT changes are examined with respect to five atmospheric/oceanic factors. The qualities of three realizations of the Geophysical Fluid Dynamics Laboratory (GFDL) model are examined by comparing these with DT. Finally, the simulations best describing the present DT are used to describe projected sea-level changes in the study area. The results indicate that DT can be used to study coastal and deep-water sea-level changes in the study area. The southern Levantine sub-basin sea level has recently risen by an average of 3.1 cm decade-1 and exhibits significant annual sea-level variation of −17 cm to 8 cm. The sea-level variation is significantly affected by several factors: sea-level variation west of the Gibraltar Strait, steric sea level, and sea-surface temperature. The GFDL simulations best describing the recent sea level over the study area, i.e., GFDL-CM3 and GFDL-ESM2M, are used to calculate the two-model ensemble mean (GFDL-2ENM), which indicates that Egypt's Mediterranean coast will experience substantial sea-level rise (SLR) this century. The estimated uncertainty over the study area was 4–22 cm by 2100, with the emission assumptions dominating the three sources of uncertainty sources. Comparing the projected SLRs with digital elevation data indicates that Egypt's Mediterranean coast will only be safe from flooding by 2100 if effective adaptation methods are applied.

7

An importance of neolithic-early dynastic-the end of old kingdom transition in ancient Egypt : geological evidences of climatic oscillations – future project

Pawlikowski M., Szymanowicz M.

Auxiliary Sciences in Archaeology, Preservation of Relics and Environmental Engineering

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2013

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nr 16

1--6

EN

Field as well as archaeological, mineralogical and geochemical investigation of Nile Delta settlement and sediments will be performed, during the future project presented in this paper. Presented project will explain the impact of climatic changes on Neolithic-Early Dynastic-the end of Old Kingdom transition in the history of ancient Egypt.