Major role of water bodies on diurnal precipitation regimes in Eastern Africa

2017 ◽  
Vol 38 (2) ◽  
pp. 613-629 ◽  
Author(s):  
Pierre Camberlin ◽  
Wilson Gitau ◽  
Olivier Planchon ◽  
Vincent Dubreuil ◽  
Beatriz M. Funatsu ◽  
...  
Keyword(s):  
Water Bodies ◽  
Eastern Africa ◽  
Precipitation Regimes

scholarly journals Formation Patterns of Mediterranean High-Mountain Water-Bodies in Sierra-Nevada, SE Spain

Water ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 438
Author(s):  
Jose Luis Diaz-Hernandez ◽  
Antonio Jose Herrera-Martinez
Keyword(s):  
Sierra Nevada ◽  
Unknown Origin ◽  
Slope Instability ◽  
Water Bodies ◽  
High Mountain ◽  
Mountain Areas ◽  
Glacial Processes ◽  
The Mediterranean ◽  
Water Volumes

At present, there is a lack of detailed understanding on how the factors converging on water variables from mountain areas modify the quantity and quality of their watercourses, which are features determining these areas’ hydrological contribution to downstream regions. In order to remedy this situation to some extent, we studied the water-bodies of the western sector of the Sierra Nevada massif (Spain). Since thaw is a necessary but not sufficient contributor to the formation of these fragile water-bodies, we carried out field visits to identify their number, size and spatial distribution as well as their different modelling processes. The best-defined water-bodies were the result of glacial processes, such as overdeepening and moraine dams. These water-bodies are the highest in the massif (2918 m mean altitude), the largest and the deepest, making up 72% of the total. Another group is formed by hillside instability phenomena, which are very dynamic and are related to a variety of processes. The resulting water-bodies are irregular and located at lower altitudes (2842 m mean altitude), representing 25% of the total. The third group is the smallest (3%), with one subgroup formed by anthropic causes and another formed from unknown origin. It has recently been found that the Mediterranean and Atlantic watersheds of this massif are somewhat paradoxical in behaviour, since, despite its higher xericity, the Mediterranean watershed generally has higher water contents than the Atlantic. The overall cause of these discrepancies between watersheds is not connected to their formation processes. However, we found that the classification of water volumes by the manners of formation of their water-bodies is not coherent with the associated green fringes because of the anomalous behaviour of the water-bodies formed by moraine dams. This discrepancy is largely due to the passive role of the water retained in this type of water-body as it depends on the characteristics of its hollows. The water-bodies of Sierra Nevada close to the peak line (2918 m mean altitude) are therefore highly dependent on the glacial processes that created the hollows in which they are located. Slope instability created water-bodies mainly located at lower altitudes (2842 m mean altitude), representing tectonic weak zones or accumulation of debris, which are influenced by intense slope dynamics. These water-bodies are therefore more fragile, and their existence is probably more short-lived than that of bodies created under glacial conditions.

scholarly journals Incidence of visceral leishmaniasis in the Vaishali district of Bihar, India: spatial patterns and role of inland water bodies

2011 ◽  
Vol 5 (2) ◽  
pp. 205 ◽  
Author(s):  
Gouri Sankar Bhunia ◽  
Shreekant Kesari ◽  
Nandini Chatterjee ◽  
Dilip Kumar Pal ◽  
Vijay Kumar ◽  
...  
Keyword(s):  
Visceral Leishmaniasis ◽  
Spatial Patterns ◽  
Water Bodies ◽  
Inland Water ◽  
Inland Water Bodies

Moving Inland from the Coast

2016 ◽  
Author(s):  
Stephanie Wynne-Jones
Keyword(s):  
Lake Victoria ◽  
Active Role ◽  
Eastern Africa ◽  
Historical Sources ◽  
Long Distance ◽  
Swahili Coast ◽  
General Terms ◽  
New Locations ◽  
Networks Of Practice

It is immediately clear that the towns of the Swahili coast could not have existed without a web of connections linking them to a deeper African hinterland. This is a complex network to recover: a lack of historical documents and an extremely patchy archaeological record have meant that interaction has been understood only in very general terms. This is often cited as a major lacuna in our understandings of the coast (Horton 1987a; Sinclair 1995), with calls for sustained archaeological attention to interior societies. There can be no doubt that this is necessary. Yet here a cautiously optimistic approach is taken, as I suggest that part of the problem we have in understanding interior networks is in the ways that we expect them to be manifest, according to a model developed for the coast: connections have been sought through the movement of imported trade goods, which may not everywhere be a useful proxy for interaction. In fact, there is now a significant body of evidence for the ways that these connections worked, even though they do not always take the form of foreign artefacts in new locations. In this chapter I extend the notion of networks of practice to think through the ways that activities and consumption would have determined the nature of coast/interior entanglements; I suggest that the absence of trade goods in sites of the interior may not be (just) a function of lack of knowledge, but also the result of choices and the active role of taste among hinterland groups. Historical sources hint at long-distance movements across eastern Africa from at least the first century AD; Ptolemy’s Geography refers to the ‘Lake of the Nile’ (Freeman-Grenville 1962b: 4), suggesting knowledge of areas and connectivity as far inland as Lake Victoria. Direct material evidence of these two millennia of interaction tends to be sought in the remains of imports found at interior sites. These are comparatively few, but do at least offer a map of connectivity that sets a framework for thinking about interaction. The earliest imports at interior sites are not, in fact, objects.

The role of aquatic macrophytes in microhabitatual transformation of physical-chemical features of small water bodies

Hydrobiologia ◽  
2007 ◽  
Vol 584 (1) ◽  
pp. 101-109 ◽  
Author(s):  
Tomasz Joniak ◽  
Natalia Kuczyńska-Kippen ◽  
Barbara Nagengast
Keyword(s):  
Aquatic Macrophytes ◽  
Water Bodies ◽  
Small Water ◽  
Physical Chemical ◽  
Small Water Bodies

scholarly journals Correction to: Application of remote sensing techniques toward the role of traditional water bodies with respect to vegetation conditions

2019 ◽  
Vol 22 (5) ◽  
pp. 4951-4951
Author(s):  
Ram Avtar ◽  
Srikantha Herath ◽  
Osamu Saito ◽  
Weena Gera ◽  
Gulab Singh ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Water Bodies ◽  
Remote Sensing Techniques

Application of remote sensing techniques toward the role of traditional water bodies with respect to vegetation conditions

2013 ◽  
Vol 16 (5) ◽  
pp. 995-1011 ◽  
Author(s):  
Ram Avtar ◽  
Srikantha Herath ◽  
Osamu Saito ◽  
Weena Gera ◽  
Gulab Singh ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Water Bodies ◽  
Remote Sensing Techniques

scholarly journals INTRODUCTION TO SPECIAL ISSUE: PAPERS FROM THE SESSION ON MARITIME ARCHAEOLOGY AT THE INDO-PACIFIC PREHISTORIC ASSOCIATION 2014 CONFERENCE

2016 ◽  
Vol 36 ◽  
pp. 1
Author(s):  
Veronica Walker-Vadillo ◽  
JLO Craig ◽  
Charlotte Minh Ha Pham
Keyword(s):  
Material Culture ◽  
Maritime Archaeology ◽  
Water Bodies ◽  
Land Resources ◽  
Special Issue ◽  
Trade Winds ◽  
The Core ◽  
Fields Of Study

<p>Compared to other fields of study, maritime archaeology is relatively new to a world of archaeological studies that have up to now mostly focused on land resources. Often, waterways are perceived by archaeologists as barriers between communities, and the seas are seen as delimiting nation’s boundaries; their use by ancient communities is often oversimplified in archaeological theories. In other cases where the role of water bodies is mentioned, fundamental factors such as trade winds, currents, nautical technology and seafaring capacities are not examined thoroughly. For the maritime archaeologists, these are at the core of their approach. Shipwrecks are not the sole focus of the maritime archaeologists, whose aim is to apprehend maritime material culture from a maritime perspective.</p>

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