scholarly journals Pleistocene Mountain Glaciation in Ethiopia

1977 ◽  
Vol 18 (79) ◽  
pp. 309-314 ◽  
Author(s):  
Stefan Hastenrath
Keyword(s):  
Spatial Correlation ◽  
Field Survey ◽  
Southern Ethiopia ◽  
Northern Ethiopia ◽  
Northern Kenya ◽  
The North ◽  
Mount Elgon ◽  
Glacial Morphology ◽  
North Western ◽  
Mountain Glaciation

Abstract During a field survey in High Semyen, northern Ethiopia, two moraine complexes were mapped, the lower one extending down to around 3 750 m. Glacial morphology is best developed in the north-western and western quadrants. Moraines are deeply weathered and carry abundant vegetation. For Mounts Badda, Cilalo, Cacca and Enguolo in southern Ethiopia, possible moraines are inferred from air photographs; there are indications for more pronounced glaciation in the western quadrant, and moraines seem to extend further down than in High Semyen. Highest moraines at Mount Elgon in northern Kenya/ Uganda were found to below 3 600 m. Major moraine complexes in the mountains of Ethiopia and East Africa suggest some spatial correlation in elevation and appearance, but absolute dates are absent.

scholarly journals Pleistocene Mountain Glaciation in Ethiopia

1977 ◽  
Vol 18 (79) ◽  
pp. 309-314 ◽  
Author(s):  
Stefan Hastenrath
Keyword(s):  
Spatial Correlation ◽  
Field Survey ◽  
Southern Ethiopia ◽  
Northern Ethiopia ◽  
Northern Kenya ◽  
The North ◽  
Mount Elgon ◽  
Glacial Morphology ◽  
North Western ◽  
Mountain Glaciation

AbstractDuring a field survey in High Semyen, northern Ethiopia, two moraine complexes were mapped, the lower one extending down to around 3 750 m. Glacial morphology is best developed in the north-western and western quadrants. Moraines are deeply weathered and carry abundant vegetation. For Mounts Badda, Cilalo, Cacca and Enguolo in southern Ethiopia, possible moraines are inferred from air photographs; there are indications for more pronounced glaciation in the western quadrant, and moraines seem to extend further down than in High Semyen. Highest moraines at Mount Elgon in northern Kenya/ Uganda were found to below 3 600 m. Major moraine complexes in the mountains of Ethiopia and East Africa suggest some spatial correlation in elevation and appearance, but absolute dates are absent.

scholarly journals Regeneration Status and Importance of Hyphaene thebaica L. (Doum Palm) and Associated Species in Tekeze Riverine Vegetation of the North Western Zone of Tigray, Northern Ethiopia

2020 ◽  
pp. 1-8
Author(s):  
Kiros Abay ◽  
Kahsu Gebretsion
Keyword(s):  
Riparian Vegetation ◽  
Ricinus Communis ◽  
Basal Area ◽  
Northern Ethiopia ◽  
The North ◽  
Regeneration Status ◽  
Western Zone ◽  
Riverine Vegetation ◽  
Associated Species ◽  
North Western

Aims: The aim of the study was to investigate the regeneration status and importance of Hypahene thebaica L. and associated species in Tekeze riparian vegetation of the North western zone of Tigray, Northern Ethiopia.  Study Design: Systematic sampling technique. Place and Duration of Study: The study was carried out along Tekeze riverine vegetation, northern Ethiopia between January 2015 and March 2015. Methodology: Three transects (one and two transects on the right and left side of the Tekeze River, respectively) were laid. The distance between the two transects on the left side of the river was 200 m. Along the transects, 30 plots were established systematically at intervals of 100 m to collect vegetation data. Results:  Eighteen plant species belonging to 12 families were recorded. Fabaceae was found to be the dominant family in the study area and were represented by five species, which contributed to 27.7% of the total species documented, whereas nine families were represented by one species each. The overall density of the study area was 70.97 individuals/ha. Hyphaene thebaica was the second abundant species with 16.13 individuals/ha, and contributed 22.7% to the total density of the riparian vegetation. The total basal area of plants was 1.03 m2 ha-1. Hyphaene thebaica was ranked third and accounts for 12.6% of the total basal area with 0.13 m2 ha-1. The species was the most frequent with 17.02%, followed by Ricinus communis and Balanites aegyptiaca. Balanites aegyptiaca (53.52%), H. thebaica (52.37%) and Ricinus communis (51.76%) were the three most important species. Conclusion: More mature trees were documented than saplings and seedlings, indicating “poor’’ regeneration status for the riparian vegetation. Hyphaene thebaica has shown “fair’’, while most species were found to have “poorly’’ or “no’’ regenerating. Hence a sound management plan is urgently required to sustainably utilize and conserve the riverine vegetation. 

Field survey at Louloudies: a new late Roman fortification in Pieria

1998 ◽  
Vol 93 ◽  
pp. 463-511 ◽  
Author(s):  
A. G. Poulter
Keyword(s):  
Field Survey ◽  
Seventh Century ◽  
Direct Access ◽  
Secure Base ◽  
The North ◽  
Eastern Aegean ◽  
North Eastern ◽  
North Bank ◽  
North Western ◽  
Late Roman

A programme, combining a physical survey, intensive pick-up and geophysics, was carried out over 17 ha around the site of a small late Roman fortification, some 6 km south of ancient Pydna. Although the area is intensively farmed, the pick-up survey proved remarkably successful. Hellenistic occupation was identified and a restricted Roman settlement around the site of the quadriburgium. Surprisingly, a new and large late Roman fortification (c. 3–4 ha), equipped with towers, with a densely occupied interior and ‘extramural’ buildings was also found. The north-eastern curtain was discovered by resistivity surveying, the line of the north-western and south-western sides by intensive survey. Pottery and brick monograms from the new site suggests that it dates to the second half of the sixth or possibly early seventh century. It is argued that the quadriburgium may be the site of ancient Anamon, a station on the coastal road from Thessaloniki to Dion. The newly discovered site, clearly of considerable importance, lay on the north bank of the river Sourvala and probably had direct access to the sea, importing both local pottery and amphorae from the eastern Aegean. Its role may have been to protect the fertile coastline of the Pieria and to provide a secure base for the export of agricultural products to the beleaguered cities and settlements around the Thermaic Gulf.

Some Questions on the Economic Prehistory of Ethiopia

1965 ◽  
Vol 6 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Frederick J. Simoons
Keyword(s):  
Red Sea ◽  
Ancient Egypt ◽  
Food Plant ◽  
Southern Ethiopia ◽  
Northern Ethiopia ◽  
The North ◽  
South Arabia ◽  
North End

This paper considers several questions in the economic prehistory of Ethiopia. Who domesticated the banana-like ensete, the food plant which in parts of southern Ethiopia forms a monoculture? Was the ensete cultivated in ancient Egypt? Was it once cultivated extensively in northern Ethiopia as a food plant? Did the Semites, who invaded Ethiopia from South Arabia, starting about 1000 B.C., introduce the plough to Ethiopia and first develop cereal-plough agriculture there?The Sidama peoples of southern Ethiopia are viewed as likely candidates in ensete domestication. The evidence for ensete cultivation in ancient Egypt is weighed and judged inconclusive. The cultivation of ensete for food in northern Ethiopia is viewed as recent. The suggestion is made that cereal-plough agriculture pre-dated the Semitic invasions. The ancient Cushitic inhabitants of northern Ethiopia are seen as having been in an excellent position for contacts with countries at the north end of the Red Sea, particularly Egypt, whence wheat and barley and the plough could have been introduced.

Τὸ Δέμα: A Survey of the Aigaleos–Parnes Wall

1957 ◽  
Vol 52 ◽  
pp. 152-189
Author(s):  
J. E. Jones ◽  
L. H. Sackett ◽  
C. W. J. Eliot
Keyword(s):  
Field Survey ◽  
Full Description ◽  
The South ◽  
The Past ◽  
Detailed Survey ◽  
The North ◽  
The City ◽  
North Western

The wall surveyed in this article is a continuous defensive fieldwork in north-western Attica, situated some six miles from Athens; it closes a prominent gap in the mountain-ring around the city, linking the ranges of Aigaleos to the south and Parnes to the north (Fig. 1). The local name for this wall, Τὸ Δέμα ‘The Link’, is both apt and specific and is being used in this article; in the past the wall has sometimes been referred to as the Aigaleos–Parnes wall and sometimes also as the Ano-Liosia wall from its relation to the nearest modern village.The lack of a detailed survey of the Dema, combined with a complete absence of literary references in ancient authors, has compelled earlier writers to base their theories largely on grounds of historical probability. The divergences in their conclusions are not surprising, and clearly demonstrate the need for detailed information about the remains. We have accordingly made a field survey of the Dema and offer a full description of the wall in the belief that this will lead to a truer interpretation of its function and also its date.

scholarly journals Coastal Characteristic and Abrasion Hazard in Putri Island, Nongsa, Batam

2018 ◽  
Vol 3 (2) ◽  
pp. 137
Author(s):  
Undang Hernawan ◽  
Nineu Yayu Geurhaneu ◽  
Godwin Latuputty
Keyword(s):  
Field Survey ◽  
Sandy Beaches ◽  
Current Direction ◽  
Coastal Morphology ◽  
The North ◽  
Study Results ◽  
Marine Influence ◽  
North Western ◽  
Geological Observation ◽  
Singapore Strait

Putri Island, Nongsa is the outer and frontier island of NKRI region bordering Singapore. Its existence is very important both economically and politically. The management of  Putri Island should consider the coastal characteristic that describes character and physical of the beach as the result of interaction between marine influence and coastal condition, geophysical and anthropogenic elements. The purposes of the study are mapping the coastal characteristics as an effort to manage frontier island and describing the abrasion hazard that occurred in this area. The study area is Putri Island, Nongsa. Field survey was conducted in May 2014. Coastal characteristic method wes conducted through geological observation, coastal morphology and coastline character. Bathymetry measurement conducted by echosounder, tidal observation by peilschaal and wind observation by a weather station. The study results show the type of tide is mixed predominantly semi diurnal. The dominant current direction is to the northeastern. The bathymetry conditions between Putri and Batam Island have a depth of up to 20 with a slope of 2.50 and towards the Singapore Strait has a depth of up to 70 m with a slope of > 100. Coastal characteristics of Putri Island is divided into 5 types, ie sandy beaches, mangroves, coral, rocky and cliff. Generally, sandy beaches, mangroves, rocky, rocky have flat morphology and consist of sand, mangroves, coral reefs, gravel and boulder. Low-cliff beaches consist of conglomerates of various materials that are not well consolidated. The abrasion hazard threatens the Putri Island, Nongsa, especially in the north-western part of the island. The abrasion of Putri Island should be managed and performed based on the coastal characteristics of the area.

scholarly journals FIELD SURVEY OF 2018 KRAKATAU TSUNAMI

2020 ◽  
pp. 6
Author(s):  
Miguel Esteban ◽  
Hendra AchiariTomoyuki Takabatake ◽  
Ryota Nakamura ◽  
Takahito Mikami ◽  
Satriyo Panalaran ◽  
...  
Keyword(s):  
Disaster Management ◽  
Field Survey ◽  
Tsunami Waves ◽  
North East ◽  
The North ◽  
Sumatra Island ◽  
Survey Results ◽  
Krakatau Volcano ◽  
National Disaster ◽  
North Western

At 21:30 local time (UTC+7h) on the 22nd of December 2018 the shorelines of the Sunda Strait, Indonesia, were flooded by tsunami waves. As a result there was widespread destruction and there were 437 casualties, 31,943 injuries, 10 still missing and over 16,000 people displaced (as of the 14th January 2019 National Disaster Management Agency (BNBP), 2019). The tsunami was caused by the flank collapse of the Anak Krakatau volcano (Robertson et al. 2018), located roughly at the centre of the Sunda Strait, which separates eastern Sumatra and western Java islands. Takabatake et al. (2019) performed a field survey of the affected areas. The survey results showed that inundation heights were more than 4 m high along the coastline of Sumatra island (situated to the north-north-east of Anak Krakatau), while less than 4 m were measured along the north-western direction. In Java island Inundation heights of over 10 m were measured at Cipenyu Beach (south-south-eastern direction from Anak Krakatau). However, at the time it was not possible to survey the actual vicinity of Anak Krakatau.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/d6hOT352fj4

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