Hazard impact and genetic development of sand dunes west of Samalut, Egypt

Gammal, El Sayed A. El; Gammal, Alaa El Din Ahmed El

doi:10.1016/j.ejrs.2010.02.001

Cited by 8 publications

(4 citation statements)

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“…6), which probably reflects short intervals of deflation. EL and EM/EL) are in the minority, but have been noted in numerous aeolian settings (El Gammal and El Gammal 2010;Kalińska 2012) and could originate from outside of the fan-like forms (cf. Vandenberghe et al 2013).…”

Section: Discussionmentioning

confidence: 99%

Sandy fan‐like forms in the central‐eastern mazovian lowland (central poland): textural record and chronology

Kalińska

Nartišs

2016

Geografiska Annaler: Series A, Physical Geography

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A unique, continuous, fan‐shaped belt of sandy landforms in the central‐eastern Mazovian Lowland, Central Poland has been investigated using a multiproxy dataset of sediment physical properties and chronological framework. Although there are several previous studies of similar fan‐like forms elsewhere in Central Poland, this central‐eastern part has not been investigated in detail. A combined methodological approach, using grain‐size distributions, the roundness, surface character and microtexture of quartz grains, and the mineral composition of the light and heavy fractions, indicate a predominantly aeolian origin for the fan‐like forms. Overlying them are dunes, the sediment within which is derived mainly from the fan‐like forms. Two main aeolian phases are distinguished based on luminescence ages: (1) between around 15 and 16 ka, possibly correlated with the Pomeranian Phase of the last (Vistulian) glaciation in Poland, and representing a phase with a poorly recorded deflation event; and (2) around 12 ka, associated with the Younger Dryas onset, when fresh, non‐aeolian material was delivered to the system. Overall, the palaeoenvironmental pattern of the fan‐like forms is controlled by the Upper Pleistocene aeolian trends.

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Section: Discussionmentioning

confidence: 99%

Sandy fan‐like forms in the central‐eastern mazovian lowland (central poland): textural record and chronology

Kalińska

Nartišs

2016

Geografiska Annaler: Series A, Physical Geography

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“…Such features of the aeolian-dominated deposits may be due to the high moisture of the sediments blown by wind (Woronko and Pochocka-Szwarc 2013). In addition, it has been noted in the numerous aeolian sand sheets (El Gammal and El Gammal 2010;Kalińska 2012). Similarly, the occurrence of shiny-type grains may have been acquired due to the presence of steppe or forest steppe areas (Gerasimov and Velichko 1982).…”

Section: Sedimentary Patternsmentioning

confidence: 95%

The fan-like forms in the southern margin of the Mazovian Lowland area (Central Poland): a new high-resolution textural-timing study

Kalińska

Nartišs

2015

Int J Earth Sci (Geol Rundsch)

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“…This work aims to create accurate land use land cover maps using the aforementioned data fusion approach to provide precise information about the evolution of urban and agricultural areas in Middle Egypt in relation to changes in population dynamics. [29]), indicating the interaction area within the yellow polygon.…”

Section: Introductionmentioning

confidence: 99%

Mapping and Quantifying the Human-Environment Interactions in Middle Egypt Using Machine Learning and Satellite Data Fusion Techniques

et al. 2020

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Population growth in rural areas of Egypt is rapidly transforming the landscape. New cities are appearing in desert areas while existing cities and villages within the Nile floodplain are growing and pushing agricultural areas into the desert. To enable control and planning of the urban transformation, these rapid changes need to be mapped with high precision and frequency. Urban detection in rural areas in optical remote sensing is problematic when urban structures are built using the same materials as their surroundings. To overcome this limitation, we propose a multi-temporal classification approach based on satellite data fusion and artificial neural networks. We applied the proposed methodology to data of the Egyptian regions of El-Minya and part of Asyut governorates collected from 1998 until 2015. The produced multi-temporal land cover maps capture the evolution of the area and improve the urban detection of the European Space Agency (ESA) Climate Change Initiative Sentinel-2 Prototype Land Cover 20 m map of Africa and the Global Human Settlements Layer from the Joint Research Center (JRC). The extension of urban and agricultural areas increased over 65 km2 and 200 km2, respectively, during the entire period, with an accelerated increase analysed during the last period (2010–2015). Finally, we identified the trends in urban population density as well as the relationship between farmed and built-up land.

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Hazard impact and genetic development of sand dunes west of Samalut, Egypt

Cited by 8 publications

References 1 publication

Sandy fan‐like forms in the central‐eastern mazovian lowland (central poland): textural record and chronology

Sandy fan‐like forms in the central‐eastern mazovian lowland (central poland): textural record and chronology

The fan-like forms in the southern margin of the Mazovian Lowland area (Central Poland): a new high-resolution textural-timing study

Mapping and Quantifying the Human-Environment Interactions in Middle Egypt Using Machine Learning and Satellite Data Fusion Techniques

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