scholarly journals Γεωμορφολογικά και μορφοτεκτονικά χαρακτηριστικά των αλλουβιακών ριπιδίων του βόρειου τμήματος της λεκάνης του Αγγίτη ποταμού

2017 ◽  
Vol 44 ◽  
pp. 29
Author(s):  
Χ. Πέννος ◽  
Θ. Ασταράς ◽  
Κ. Βουβαλίδης ◽  
Ε. Παπαφιλίππου-Πέννου ◽  
Σ. Πεχλιβανίδου
Keyword(s):  
Catchment Area ◽  
Morphological Characteristics ◽  
Deposition Process ◽  
Alluvial Fans ◽  
The West ◽  
The North ◽  
Tectonic System ◽  
The Impact ◽  
Tectonic Movements ◽  
Geomorphological Survey

The catchment area of Aggitis River, which forms a part of the wider catchment area of the Strymon River, constitutes a tectonic graben. In the north of the graben, landforms of complex alluvial fans (bajadas) are found. In the present study, the impact of tectonics on the deposition process and on the geomorphological relief of the northern basin of Aggitis. For this purpose, a quantitative analysis of morphological characteristics of the alluvial fans is carried out. Moreover, the geologic and stratigraphic characteristics of the fans were studied and components of the tectonic movements that took place in the study area identified. Through the geomorphological survey an uplift of 24m with a twisting towards the northeast for the Menikio Mountain was determined that took place in the Upper Pleistocene. While, for the Falakro Mountain, an uplift movement and a minimum torsion of approximately 9m towards the S – SE was calculated. The mountains at the East and at the West of Aggitis River were uplifted with different rates. This result is in agreement with the argument for the existence of a tectonic system of horsts and grabens that formed the Aggitis River basin and influenced its later development.

scholarly journals The Impact of Subtropical Indian Ocean Anticyclone over Tasmania Precipitation

2019 ◽  
pp. 1-10
Author(s):  
Bilal Ahmed Usmani ◽  
Saqib-Ur-Rehman . ◽  
Abdul Jamil Khan ◽  
Kamran Khan ◽  
Syed Adnan Hussain ◽  
...  
Keyword(s):  
Indian Ocean ◽  
Correlation Coefficients ◽  
Inverse Association ◽  
The West ◽  
Sea Level Pressure ◽  
High Frequencies ◽  
The North ◽  
Average Rainfall ◽  
Z Scores ◽  
The Impact

Aims: To explore the association between observed frequency of anticyclones over subtropical Indian Ocean (10°S-50°S, 102.5°E-142.5°E) and average autumn rainfall over the districts of Tasmania. Methodology: We have divided the rainfall amounts over nine districts of Tasmania into three categories (Above average, average and below average rainfall) by using z-scores technique for each autumn (March-May) month for the period of 1951-2016. We have also categorized the calculated frequency of anticyclone over the subtropical Indian Ocean in a similar fashion. Results: Our analysis suggests inverse association between each category of average rainfall and the corresponding frequency of anticyclones for each month of autumn. This association revealed that during below average rainfall, the high frequencies of anticyclones were occupied over the most of the area of subtropical Indian Ocean that resulted less rainfall in the districts while during above average autumn rainfall, the high frequencies of anticyclones observed in the west of 110°E this enabled more autumn rainfall over the districts. We have also found the negative correlation coefficients between mean sea level pressure over the same domain of Indian Ocean and average rainfall over each district in each month of the autumn (March-May). Conclusion: The slightly shift of Mean Central Pressure (MCP) to the north from the west coast of Tasmania from March-May enabled the extra-tropical activity of rainfall systems. This causes enhanced rainfall during average and above average rainfall conditions than March-April over nine districts of Tasmania.

scholarly journals Tingkat Kebisingan Di Kawasan Permukiman Sekitar PLTD Muara Teweh

2016 ◽  
Vol 13 (1) ◽  
pp. 328
Author(s):  
Uswatun Hasanah ◽  
Zulfikar Ali As ◽  
Maharso Maharso
Keyword(s):  
Noise Level ◽  
Noisy Environment ◽  
Residential Areas ◽  
Noise Levels ◽  
The West ◽  
Cross Sectional ◽  
The North ◽  
Abstract Level ◽  
Cross Sectional Design ◽  
The Impact

Abstract: Level of Noise in the residential around muara teweh’s PLTD. Muara Teweh’s PLTD was one of the regional companied responsible for the provision of electricity serviced. The impact of the operation of the PLTD is the emergence of noise caused by the PLTD engine so that it appeared on public complainted, especially communication disordered, disordered of physiological and psychological disordered. This study aims to determine the noise level and subjective complainted felt in residential areas around Muara Teweh’s PLTD. This research was a descriptive observational describe the noise level in residential areas Muara Teweh’s PLTD. This study include cross-sectional design that aims to determine the noise until at residential areas around Muara Teweh’s PLTD and connect with public complainted in residential areas around Muara Teweh’s PLTD. The measurement resulted show noise levels in residential areas around Muara Teweh’s PLTD exceeded the NAV according KEPMEN / LH / 48/1996, which is 62.9 dBA in the North, 70.4 dBA in the Northeast, 69.3 dBA in the East , 69.4 dBA in the direction of the Southeast, 72.3 dBA in the south, 72.2 dBA in the direction of the Southwest, 78.2 in the West and 75.5 dBA in the northwest. Subjective complainted of the most widely felt in residential areas Muara Teweh’s PLTD form (45.9%), headache (56.8%), discomfort (91.9%), insomnia (83.8%) fast and emotions (40.5%). Efforts should be madeto controlnoise levelsand complaintsaregiving them the toolsnoise suppressioninengine room, thickenthe barrier, put upcurtainsat thewindows of the houseanddo notoftenopen thedoor. Keywords         :           Noisy environment, residential noise

scholarly journals An investigation into the spatiotemporal patterns of the Nymphalid butterfly Vagrans egista sinha (Kollar, [1844])

2022 ◽  
Author(s):  
Paul Pop ◽  
Kuldeep Singh Barwal ◽  
Randeep Singh ◽  
Puneet Pandey ◽  
Harminder Pal Singh ◽  
...  
Keyword(s):  
Seasonal Variation ◽  
Citizen Science ◽  
Range Shift ◽  
Range Extension ◽  
Science Data ◽  
The West ◽  
North West ◽  
The North ◽  
Spatial Differences ◽  
The Impact

Vagrans egista sinha (Kollar, [1844]), the Himalayan Vagrant is a subspecies of Nymphalid (Brush-footed) butterflies spread across Asia, whose western limit is in the north-west India. Observations of this subspecies have considerably increased over the past half-a-decade, with a spike in new sightings to the west of their previously known range. This has been considered as a range extension. The current study reports new records of this species from Bilaspur District, Himachal Pradesh, India (which are the first records for the district), through systematic and opportunistic sampling. This raises the question of whether the purported range extension towards the west could instead be a range shift or vagrancy, and whether there is any shift in elevational ranges in the populations across their known range. Questions pertaining to spatial differences in elevational ranges and seasonal variation, across their range, also piqued our curiosity. Using data from academic sources (such as published literature and museum collections), supplemented by data from public participation in scientific research and personal observations, these research questions are addressed. The accuracy of results when using citizen science data is also explored using the same dataset, focused on the impact of method of extraction of coordinates, and elevation derived from it under different scenarios. It was discovered that there has not been a range shift (either longitudinal or latitudinal) and observations do not suggest vagrancy but a case of range extension. Other results indicated that there was no climb of population to higher elevations, no spatial differences in elevational ranges in the populations, or seasonal variation in activities across their range. It was also discovered that the method of data collection by, and extraction from, citizen science databases, can influence the accuracy of the results. Some problems involved in collecting data are discussed, and remedial solutions are suggested.

scholarly journals Ethnolinguistic survey of westernmost Arunachal Pradesh

2014 ◽  
Vol 37 (2) ◽  
pp. 198-239 ◽  
Author(s):  
Timotheus Adrianus Bodt
Keyword(s):  
Geographical Distribution ◽  
Field Research ◽  
Previous Literature ◽  
Historical Background ◽  
Language Family ◽  
Arunachal Pradesh ◽  
The West ◽  
The North ◽  
The Impact ◽  
Internal Variation

The area between Bhutan in the west, Tibet in the north, the Kameng river in the east and Assam in the south is home to at least six distinct phyla of the Trans-Himalayan (Tibeto-Burman, Sino-Tibetan) language family. These phyla encompass a minimum of 11, but probably 15 or even more mutually unintelligible languages, all showing considerable internal dialect variation. Previous literature provided largely incomplete or incorrect accounts of these phyla. Based on recent field research, this article discusses in detail the several languages of four phyla whose speakers are included in the Monpa Scheduled Tribe, providing the most accurate speaker data, geographical distribution, internal variation and degree of endangerment. The article also provides some insights into the historical background of the area and the impact this has had on the distribution of the ethnolinguistic groups.

scholarly journals The Impact of Best Track Discrepancies on Global Tropical Cyclone Climatologies using IBTrACS

2014 ◽  
Vol 142 (10) ◽  
pp. 3881-3899 ◽  
Author(s):  
Carl J. Schreck ◽  
Kenneth R. Knapp ◽  
James P. Kossin
Keyword(s):  
Tropical Cyclone ◽  
Tropical Cyclones ◽  
Historical Analysis ◽  
The West ◽  
West Pacific ◽  
Global Context ◽  
The North ◽  
The Impact ◽  
National Hurricane Center ◽  
Joint Typhoon Warning Center

Abstract Using the International Best Track Archive for Climate Stewardship (IBTrACS), the climatology of tropical cyclones is compared between two global best track datasets: 1) the World Meteorological Organization (WMO) subset of IBTrACS (IBTrACS-WMO) and 2) a combination of data from the National Hurricane Center and the Joint Typhoon Warning Center (NHC+JTWC). Comparing the climatologies between IBTrACS-WMO and NHC+JTWC highlights some of the heterogeneities inherent in these datasets for the period of global satellite coverage 1981–2010. The results demonstrate the sensitivity of these climatologies to the choice of best track dataset. Previous studies have examined best track heterogeneities in individual regions, usually the North Atlantic and west Pacific. This study puts those regional issues into their global context. The differences between NHC+JTWC and IBTrACS-WMO are greatest in the west Pacific, where the strongest storms are substantially weaker in IBTrACS-WMO. These disparities strongly affect the global measures of tropical cyclone activity because 30% of the world’s tropical cyclones form in the west Pacific. Because JTWC employs similar procedures throughout most of the globe, the comparisons in this study highlight differences between WMO agencies. For example, NHC+JTWC has more 96-kt (~49 m s−1) storms than IBTrACS-WMO in the west Pacific but fewer in the Australian region. This discrepancy probably points to differing operational procedures between the WMO agencies in the two regions. Without better documentation of historical analysis procedures, the only way to remedy these heterogeneities will be through systematic reanalysis.

scholarly journals Results from a geological reconnaissance around Svartenhuk Halvø, West Greenland

1973 ◽  
Vol 50 ◽  
pp. 1-26
Author(s):  
V Münther
Keyword(s):  
Fault Zones ◽  
The South ◽  
Large Area ◽  
The West ◽  
North East ◽  
The North ◽  
South West ◽  
Early Tertiary ◽  
Lateral Extent ◽  
Tectonic Movements

Svartenhuk Halvø is built up primarily of Tertiary basalts; these overlie Cretaceous and early Tertiary sediments, and overlap onto the Precambrian basement. The basalt series can be divided into a lower and an upper series; although displaced by faults, the boundary between these series can be followed across the peninsula. The thickness of the lower basalt series is estimated to be about 2-3 km in the south of the peninsula and barely 1 km in the north; the sub-aquatic basalt breccia is included in these thicknesses. FauIts causing repetitions of the lava succession have resulted in the series being preserved over a rather large area. The general dip of the lavas is 3-4 dregrees towards SW in the east and 8-10 degrees, also towards SW, in the west. Locally dips between 10 and 20 degrees or even steeper are seen; these are the resulf of drag along fault zones in Arfertuarssuk fjord and Kugssineq valley, and between Svartenhuk Halvø and Ubekendt Ejland. The youngest fault has a displacement of 500 m or more and has downthrown the basement area to the north-east in relation to the sediment-basalt breccia-basalt series to the south-west. The upper basalt series has by far the greater lateral extent and covers the gneiss and metasediment area to the north and north-east at least as far as the Inland lee. The dip of the flows in this part of the basalt series is considerably lower than in much of the lower basalt series, but faults repeating the succession are also frequently encountered within the upper basalts. The tectonic movements evidence a strong E-W (or NE-SW) tension, never a compression; the weak anticlinal and synclinal structures which are seen are interpreted as resulfing from differential sagging. The lower basalt series is thought to have arisen from fissure eruptions, with the main area of eruption in the east. The lavas are very rich in olivine (i. e. are pieritic). The upper basalt series probably arose from central eruptions and smaller fissure eruptions, and the area of eruption is thought to have shifted to the west. The upper lavas become poorer in olivine; andesitic lavas represent perhaps a closing phase, more local in its distribution and perhaps resulting from magmatic assimilation of pre-basaltic sediments. "Iron basalt" and intrabasaltic breccia have not been noted on Svartenhuk Halvø.

scholarly journals The Uniqueness formation of Papuan Malay in Morphologically

2018 ◽  
Vol 3 (2) ◽  
pp. 137
Author(s):  
Herlandri Eka Jayaputri ◽  
Dwiyanto Djoko Pranowo
Keyword(s):  
The West ◽  
The North ◽  
West Papua ◽  
Word Classes ◽  
The Impact

<p><em>Indonesia has many Malay speakers and it spreads to Papua with the influence of Ambon and Indonesian becomes one of the variations in the Papuan Malay dialect. Papuan itself is the home of 275 languages that are 218 non-Austronesian or Papuan (79%) and 57 languages are Austronesian (21%) (Lewis et al. 2013 cited in Kludge, 2014). Moreover, the influence of </em><em>Ambon and the North Moluccan Malay, and Indonesia played an important role especially in the formation of Papuan Malay (Paauw, 2008). </em><em>Papuan Malay language is spoken by the inhabitants of the West Papua and uses as the daily language (Kludge, 2014). The formation of </em><em>Papuan Malay has the uniqueness because it uses deletion some syllables but does not have the impact of the meaning. </em><em>This study aims to know and explain the process of clipping word of Papuan Malay as well as their word classes. The Data come from the video of MOB Papua.  Besides that, the method used in this study is a Padan method with comparing other langue. Therefore, this study appears the history and role of Papuan Malay and compare the Indonesian with Papua Malay to find the clipping word process in Papuan Malay.</em></p>

Hydrological basin connectivity in a low-latitude rift: the impact of the Holocene African Humid Period (AHP) on fluvial activity and species dispersal in the Kenya Rift, East African Rift System (EARS)

2020 ◽  
Author(s):  
René Dommain ◽  
Simon Riedl ◽  
Lydia Olaka ◽  
Peter deMenocal ◽  
Alan Deino ◽  
...  
Keyword(s):  
Drainage System ◽  
Population Expansion ◽  
Aquatic Organisms ◽  
Rift System ◽  
East African Rift System ◽  
Species Dispersal ◽  
Dispersal Patterns ◽  
The North ◽  
Tectonic System ◽  
The Impact

&lt;p&gt;As a result of sustained tectonic and magmatic processes throughout the latter half of the Cenozoic, the eastern branch of the EARS exhibits an extensional tectonic system with pronounced relief contrasts, constituting both corridors and barriers for species dispersal. The tectono-magmatic history has generated a region of highly variable topography that results in widely varying amounts of rainfall and vegetation cover. Today, the generally dry eastern branch of the EARS hosts numerous sub-basins and adjacent local high-relief areas that are hydrologically isolated, with unique microclimates, vegetation types, faunas and superposed surface processes. However, during episodes of climate change with a trend toward more humid conditions, many of these basins hosted freshwater lakes that were hydrologically connected. These areas have repeatedly exhibited freshwater conditions and likely served as gateways and migration corridors mainly for aquatic organisms, in particular fish, facilitating population expansion, dispersal and gene flow.&lt;/p&gt;&lt;p&gt;Here, we analyze the manifold manifestations of the AHP in Kenya and adjacent sectors of the EARS to establish the timing and spatial extent of a paleo-drainage system documented by lake shorelines, deltas, overflow channels and sediments. These vestiges of fluvial connectivity in the rift have emerged as analogs for recurrent Pleistocene episodes with high lake levels and inter-basin linkage that repeatedly connected equatorial basins with regions to the north and south, respectively. For example, fossil evidence for the Pleistocene occurrence of the Nile crocodile (&lt;em&gt;Crocodylus niloticus&lt;/em&gt;) as far south as equatorial Lake Bogoria (Kenya) and its present occurrence in the now closed Lake Baringo basin indicate fluvial connectivity over several degrees of latitude during more humid episodes in the past. Similarly, the occurrence of more than a dozen of the same fish species in the presently unconnected Lakes Albert and Turkana is likely due to a mutual connection during the AHP when Lake Turkana was overflowing into the White Nile.&lt;/p&gt;&lt;p&gt;Taken together, the divergent fossil and modern faunal evidence and geomorphic and sedimentological evidence of contrasting hydrological conditions between the wet AHP and the present, suggest that the conditions during the AHP provides a template of fluvial connectivity and potential dispersal patterns for earlier humid phases during the Plio-Pleistocene.&lt;/p&gt;

scholarly journals Geomorphological quantitative analysis of Sperchios River Basin area (Central Greece) utilizing geographical information systems.

2016 ◽  
Vol 47 (1) ◽  
pp. 325 ◽  
Author(s):  
E. Psomiadis ◽  
G. Migiros ◽  
V. Antoniou
Keyword(s):  
River Basin ◽  
Catchment Area ◽  
Geographical Information Systems ◽  
Spatial Models ◽  
Morphological Characteristics ◽  
Geographical Information ◽  
Digital Terrain ◽  
Significant Difference ◽  
The Impact ◽  
Basin Area

In the present study the analysis of the morphometric quantitative parameters of Sperchios river basin, and specifically of the 8 main sub-basins of the northern and southern part, have been made. The integrated use of a Geographic Information System (GIS) allows a thorough spatial analysis of the data derived from digital terrain spatial models that reveal the geomorphological characteristics of an area. The thorough analysis of the results shows the significant difference of the morphological characteristics of the northern and southern part of the catchment area, due to the impact of the neotectonic activity of the area, which creates this asymmetrical topography.

Peasants versus Capitalists in the Indian Sugar Industry: The Impact of the Irrigation Frontier

1985 ◽  
Vol 45 (1) ◽  
pp. 59-80 ◽  
Author(s):  
Donald W. Attwood
Keyword(s):  
Crop Production ◽  
Sugar Industry ◽  
Western India ◽  
Commercial Agriculture ◽  
The West ◽  
The North ◽  
External Forces ◽  
The Third World ◽  
The Impact ◽  
Plantation System

Has the organization of commercial agriculture in the Third World been shaped primarily by external forces from the world economy? This study of sugar production in northern and western India shows that industrialists were generally unable to impose a plantation system on the local peasantry, despite the great technical and economic advantages of doing so. Control of the land, in most cases, did not pass into the hands of industrialists. The organization of crop production remained almost unchanged in the north, while in the west, despite initial progress toward a plantation system, the local cultivators responded by taking control of the industry into their own hands. Thus, contrary to experience in much of the New World, Indian villagers did not become passive victims of the sugar industry; those in the west went even further, in taking over the industry themselves. The contrast between these regions can be explained in part by the temporary existence of an “irrigation frontier” in the west.

Sign in / Sign up

Export Citation Format

Share Document