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

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.

1998 ◽  
Vol 93 ◽  
pp. 463-511 ◽  
Author(s):  
A. G. Poulter

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.


2006 ◽  
Vol 22 (3_suppl) ◽  
pp. 235-240 ◽  
Author(s):  
Robert Weiss ◽  
Heinrich Bahlburg

A field survey of the coast of Kenya was conducted after the 26 December 2004 Indian Ocean tsunami. We visited the coast between Mombasa and the Ngomeni Peninsula north of Malindi from 25 February to 4 March 2005. The tsunami struck the coast during the rising tide, but it caused little damage because warnings had been issued effectively and because large stretches of the coast are protected by reefs. These large stretches of protected coast end at Malindi, and the coasts to the north include sandy beaches and spits like the Ngomeni Peninsula. The maximum recorded runup at this peninsula was 3 m at 43 m from the water level at the time of the tsunami impact.


1957 ◽  
Vol 52 ◽  
pp. 152-189
Author(s):  
J. E. Jones ◽  
L. H. Sackett ◽  
C. W. J. Eliot

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.


1977 ◽  
Vol 18 (79) ◽  
pp. 309-314 ◽  
Author(s):  
Stefan Hastenrath

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.


1977 ◽  
Vol 18 (79) ◽  
pp. 309-314 ◽  
Author(s):  
Stefan Hastenrath

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.


Zootaxa ◽  
2013 ◽  
Vol 3608 (7) ◽  
pp. 575-586 ◽  
Author(s):  
GIANLUCA MEINI

Two new otoplanid species, from the interstitial habitats of the North-Western Mediterranenan sea coast, are described. The specimens show the typical morphological peculiarities of the subfamily Otoplaninae ("Turbellaria", Otoplanidae), but clearly differ from other species described in this group. Otoplana labronica sp. nov. is characterized by a body length of 1.2–1.5 mm, different features of the testes and vitellaries, the male sclerotic apparatus composed of a median aculeus (52–53 μm long) and 16 peculiar spines (19–44 μm long). This new species has the smallest number of spines (17) and the smaller body length, in comparison to all the species of the genus. Otoplana falcataspina sp. nov. is characterized by a body length of 2.3–2.4 mm, distinctive dimensions and arrangement of the vitellaries, the male sclerotic apparatus composed of a median aculeus (50–51 μm long) and 20–21 spines (22–44 μm long). This new species has a limited body length, and only the sexually mature specimens of the new species O. labronica exhibit a smaller size. They were collected below the low water mark on the sandy beaches at Calambrone and Marina di Vecchiano (Pisa, Ligurian Sea, Italy), respectively.


Author(s):  
Miguel Esteban ◽  
Hendra AchiariTomoyuki Takabatake ◽  
Ryota Nakamura ◽  
Takahito Mikami ◽  
Satriyo Panalaran ◽  
...  

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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