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Snow Cover Dynamics in Andean Watersheds of Chile (32.0-39.5°S) During the Years 2000 - 2013
Hydrol. Earth Syst. Sci. Discuss., doi:10.5194/hess-2016-357, 2016 Manuscript under review for journal Hydrol. Earth Syst. Sci. Published: 20 September 2016 c Author(s) 2016. CC-BY 3.0 License. Snow cover dynamics in Andean watersheds of Chile (32.0-39.5°S) during the years 2000 - 2013 Alejandra Stehr1,2,3 and Mauricio Aguayo1,2 1Centre for Environmental Sciences EULA-CHILE, University of Concepción, Concepción, Chile 5 2Faculty of Environmental Sciences, University of Concepción, Concepción, Chile 3CRHIAM, University of Concepción, Concepción, Chile Correspondence to: A. Stehr ([email protected]) Abstract. Andean watersheds present important snowfall accumulation mainly during the winter which is later melted during spring and part of the summer. The effect of snowmelt on the water balance can be critical to sustain agriculture activities, 10 hydropower generation, urban water supply and wildlife. In Chile 25% of the territory between the Valparaiso and Araucanía Regions comprise areas where snow precipitation occurs. As in many other difficult-to-access regions of the world, in the Chilean Andes there is a lack of hydrological data like discharge, snow courses, snow depths, which complicate the analysis of important hydrological processes (e.g. water availability). Remote sensing provides a promising opportunity to enhance the assessment and monitoring of the spatial and temporal variability of snow characteristics, like Snow Cover Area (SCA) and 15 Snow Cover Dynamic (SCD). In the above mentioned context the objectives of this study are to evaluate the suitability of MOD10A2 to estimate SCA and to assess SCD at five watersheds (Aconcagua, Rapel, Maule, Biobío and Toltén) located in the Chilean Andes, between latitude 32.0ºS and 39.5ºS. -
Geology of the Nairobi Region, Kenya
% % % % % % % % %% %% %% %% %% %% %% % GEOLOGIC HISTORY % %% %% % % Legend %% %% %% %% %% %% %% % % % % % % HOLOCENE: %% % Pl-mv Pka %%% Sediments Mt Margaret U. Kerichwa Tuffs % % % % %% %% % Longonot (0.2 - 400 ka): trachyte stratovolcano and associated deposits. Materials exposed in this map % %% %% %% %% %% %% % section are comprised of the Longonot Ash Member (3.3 ka) and Lower Trachyte (5.6-3.3 ka). The % Pka' % % % % % % L. Kerichwa Tuff % % % % % % Alluvial fan Pleistocene: Calabrian % % % % % % % Geo% lo% gy of the Nairobi Region, Kenya % trachyte lavas were related to cone building, and the airfall tuffs were produced by summit crater formation % % % % % % % % % % % % % % % % % Pna % % % % %% % (Clarke et al. 1990). % % % % % % Pl-tb % % Narok Agglomerate % % % % % Kedong Lake Sediments Tepesi Basalt % % % % % % % % % % % % % % % % %% % % % 37.0 °E % % % % 36.5 °E % % % % For area to North see: Geology of the Kijabe Area, KGS Report 67 %% % % % Pnt %% % PLEISTOCENE: % % %% % % % Pl-kl %% % % Nairobi Trachyte % %% % -1.0 ° % % % % -1.0 ° Lacustrine Sediments % % % % % % % % Pleistocene: Gelasian % % % % % Kedong Valley Tuff (20-40 ka): trachytic ignimbrites and associated fall deposits created by caldera % 0 % 1800 % % ? % % % 0 0 % % % 0 % % % % % 0 % 0 8 % % % % % 4 % 4 Pkt % formation at Longonot. There are at least 5 ignimbrite units, each with a red-brown weathered top. In 1 % % % % 2 % 2 % % Kiambu Trachyte % Pl-lv % % % % % % % % % % %% % % Limuru Pantellerite % % % % some regions the pyroclastic glass and pumice has been -
Fire and Its Effects on Vegetation in the Okavango Delta.Pdf
MICHAEL HEINL Fire and its effects on vegetation in the Okavango Delta, Botswana Feuer und sein Einfluss auf die Vegetation im Okavango Delta, Botswana supported by Fire and its effects on vegetation in the Okavango Delta, Botswana Feuer und sein Einfluss auf die Vegetation im Okavango Delta, Botswana Diplomarbeit am Lehrstuhl für Vegetationsökologie Technische Universität München Freising-Weihenstephan Prof. Dr. Jörg Pfadenhauer - 25. August 2001 - Autor: Michael Heinl ([email protected]) Betreuer: Dr. Jan Sliva ([email protected]) Prof. Jörg Pfadenhauer Dr. E. Veenendaal supported by PREFACE II Fire and its effects on vegetation in the Okavango Delta, BoBotttswanaswana Preface The present MSc-Thesis (Diplomarbeit) describes the results of a one-year project about the effects of fire on vegetation, with special focus on the Okavango Delta region, Botswana. The study is based on a new initiated research co-operation between Harry Oppenheimer Okavango Research Centre (HOORC) in Maun, Botswana, part of University of Botswana and the Chair of Vegetation Ecology of the Technische Universität München (TUM), Germany funded by Stifterverband für die Deutsche Wissenschaft within their programme “Forschung für Naturräume“ for young scientists. Under the topic “Elements in Conflict - Anthropogenic fires in the RAMSAR-wetland Okavango-Delta (Botswana)”, prerequisites were set for future co- operative research projects between HOORC and TUM during August 2000 to August 2001. Besides the theoretical introduction to the ecology of the study area ‘Okavango Delta’, this period was primarily used to gain first practical experience on the vegetation and the fire ecology of the Okavango Delta during the stays in Botswana in October 2000 and March/April/Mai 2001. -
Early and Middle Pleistocene Faunal and Hominins Dispersals Through Southwestern Asia
Early and Middle Pleistocene Faunal and Hominins Dispersals through Southwestern Asia The Harvard community has made this article openly available. Please share how this access benefits you. Your story matters Citation Bar-Yosef, Ofer and Miriam Belmaker. Forthcoming. Early and Middle Pleistocene faunal and hominins dispersals through Southwestern Asia. Quaternary Science Reviews 29. Published Version doi:10.1016/j.quascirev.2010.02.016 Citable link http://nrs.harvard.edu/urn-3:HUL.InstRepos:4270472 Terms of Use This article was downloaded from Harvard University’s DASH repository, and is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http:// nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of- use#OAP 1 Early and Middle Pleistocene Faunal and Hominins Dispersals through 2 Southwestern Asia 3 4 5 Ofer Bar-Yosef and Miriam Belmaker 6 Department of Anthropology 7 Harvard University 8 11 Divinity Avenue 9 Cambridge MA 02138 10 Phone ++ 1 617 495 1279 11 Fax ++ 1 617 496 8041 12 1 12 Abstract 13 This review summarizes the paleoecology of the Early and Middle Pleistocene of 14 southwestern Asia, based on both flora and fauna, retrieved from a series of ‘windows’ 15 provided by the excavated sites. The incomplete chrono-stratigraphy of this vast region 16 does not allow to accept the direct chronological correlation between the available sites 17 and events of faunal and hominin dispersals from Africa. It also demonstrates that 18 hominins survived in a mixed landscape of open parkland with forested surrounding hills. 19 In addition, the prevailing environmental conditions are not sufficient to explain the 20 differences between ‘core and flake’ and the Acheulian industries that probably reflect 21 the learned traditions of different groups of hominins successful adaptations to new 22 ecological niches away from the African savanna. -
Aswa5-01-Belmaker-20
ARCHAEOZOOLOGY OF THE NEAR EAST V Proceedings of the fifth international symposium on the archaeozoology of southwestern Asia and adjacent areas edited by H. Buitenhuis, A.M. Choyke, M. Mashkour and A.H. Al-Shiyab ARC-Publicaties 62 Groningen, The Netherlands, 2002 Cover illustrations: Logo of the Yarmouk University, Jordan This publication is sponsored by: ARCbv and Vledderhuizen Beheer bv Copyright: ARC-bv Printing: RCG-Groningen Parts of this publications can be used by third parties if source is clearly stated Information and sales: ARCbv, Kraneweg 13, Postbus 41018, 9701 CA, Groningen, The Netherlands Tel: +31 (0)50 3687100, fax: +31 (0)50 3687199, email: [email protected], internet: www.arcbv.nl ISBN 90 – 77170 – 01– 4 NUGI 680 -430 Preface When I participated in the IV th International Conference of ASWA, held in the summer of 1998 in Paris, I was gratified to learn that the Scientific committee had unanimously agreed to hold the next meeting in Jordan. Thus, on 2 April 2000, the V th International Conference of the Archaeozoology of Southwest Asia and Adjacent Areas was held for the first time within the region at Yarmouk University in Irbid, Jordan after being held on the past four occasions in Europe. The themes of this conference were divided into five areas including: • Paleo-environment and biogeography • Domestication and animal management • Ancient subsistence economies • Man/animal interactions in the past • Ongoing research projects in the field and related areas I wish to thank all those who helped make this conference such a success. In particular, I would like to express my appreciation to the Director of the Institute of Archaeology and anthropology at Yarmouk University Special thanks are due to his excellency, the President of Yarmouk University, Professor Khasawneh, who gave his full support and encouragement to the convening of this conference at Yarmouk University and to all those who contributed the working papers which made the conference possible. -
Palaeontological Impact Assessment May Be Significantly Enhanced Through Field Assessment by a Professional Palaeontologist
PALAEONTOLOGICAL HERITAGE REPORT: DESKTOP STUDY Proposed Transnet Sishen Railway Line Link Project in Gamagara Local Municipality, Northern Cape Province John E. Almond PhD (Cantab.) Natura Viva cc, PO Box 12410 Mill Street, Cape Town 8010, RSA [email protected] April 2018 1. EXECUTIVE SUMMARY Transnet is proposing to construct a c.1 km–long freight link line between two existing railway lines near the Assmang Khumani open-cast iron ore mine south of Sishen, Kuruman District, Northern Cape. The Precambrian bedrocks underlying the railway project area comprise terrestrial or submarine lavas (Ongeluk Formation, Postmasburg Group) as well as iron formation (Gamagara Formation, Elim Group) of Neoproterozoic age (c. 2 billion years old) that are completely unfossiliferous. The overlying thick Late Caenozoic superficial deposits – including calcretes, surface gravels and aeolian sands of the Kalahari Group – are, at most, sparsely fossiliferous and to a considerable extent already disturbed by mining-related activity. Low-diversity assemblages of trace fossils as well as non-marine molluscs (e.g. snails) and rare vertebrate remains (e.g. teeth, bones and horn cores of mammals) might occur within consolidated alluvial deposits along the Gamagara drainage line that is crossed by the proposed new rail link (See yellow dotted ellipse in Fig. 2a herein); important Pleistocene vertebrate and Stone Age archaeological remains are recorded from calcrete solution hollows at Kathu Pan, for example, less than 20 km north of the present study area. With the notable exception of the vertebrate remains, these Late Caenozoic fossils probably occur widely across the Kalahari region of the Northern Cape and are not considered to be of high conservation value. -
Foodplain Vegetation in the Nxaraga Lagoon Area, Okavango Delta, Botswana
S. Afr. J. Bol. 2000, 66( I): 15- 21 15 Foodplain vegetation in the Nxaraga Lagoon area, Okavango Delta, Botswana M.C. Bonyongo" *, G.J. Bredenkamp' and E. Veenendaal' , Harry Oppenheimer Okavango Research Centre, University of Bo tswana, Private Bag 285, Maun. Botswana 20 epartment of Botany. University of Pretoria , Pretoria, 0002 Republic of South Africa Ueceived 2 June 1999, reVIsed 2() Ocwher /999 The phytosociology and patterns of vegetation distribution of the seasonal fi oodplains were studied. Cover-abundance data were collected from a total of 200 sample plots and captured in TU RBO(VEG), a software package for input and processing and presentation of phytosociological data. Application of the Braun-B lanquet methods of vegetation survey followed by a polythetic divisive classification technique (TWINSPAN) resulted in the delineation of eight vegetation communities of which five were further divided into sub-communities, The eight commun ities are Cyperus articulafus-Schoenopleclus corymbosus community, Alternanthera sessilis-Ludwigia sio/anitera community, Vetiveria nigritana-Setaria sphacelata community, Miscanthus junceus-Digitaria sea/arum community, Imperata cylindrica-Setana sphacelata community, Paspalidium oblusifolorum-Panicum repens community, Setaria sphaeefata- Eragrostis inamoena community and Sporobolus spicatus community. All plant commun ities are related to specific flooding regime namely time and duration of inundation . Keywords: Braun-Branquet, classification , plant community types, releve, TWINSPAN. "To whom correspondence should be addressed. Introduction re lative humidity at 0800 hours between 60% and 78% ( Ellery f!f Vegetation description is the starting point of both small and al. 1991 ) The cooler, drier winter months (June- August) have ,\ large scale vegetation research. Vegetation description aims to mean monthly maximum of25.3°(. -
The Hydrology of the Okavango Delta, Botswana—Processes, Data and Modelling
Regional review: the hydrology of the Okavango Delta, Botswana—processes, data and modelling Christian Milzow & Lesego Kgotlhang & Peter Bauer-Gottwein & Philipp Meier & Wolfgang Kinzelbach Abstract The wetlands of the Okavango Delta accom- Introduction modate a multitude of ecosystems with a large diversity in fauna and flora. They not only provide the traditional The Okavango wetlands, commonly called the Okavango livelihood of the local communities but are also the basis Delta, are spread on top of an alluvial fan located in of a tourism industry that generates substantial revenue for northern Botswana, in the western branch of the East the whole of Botswana. For the global community, the African Rift Valley. Waters forming the Okavango River wetlands retain a tremendous pool of biodiversity. As the originate in the highlands of Angola, flow southwards, upstream states Angola and Namibia are developing, cross the Namibian Caprivi-Strip and eventually spread however, changes in the use of the water of the Okavango into the terminal wetlands on Botswanan territory cover- River and in the ecological status of the wetlands are to be ing the alluvial fan (Fig. 1). Whereas the climate in the expected. To predict these impacts, the hydrology of the headwater region is subtropical and humid with an annual Delta has to be understood. This article reviews scientific precipitation of up to 1,300 mm, it is semi-arid in Botswana work done for that purpose, focussing on the hydrological with precipitation amounting to only 450 mm/year in the modelling of surface water and groundwater. Research Delta area. High potential evapotranspiration rates cause providing input data to hydrological models is also over 95% of the wetland inflow and local precipitation to be presented. -
The Okavango; a River Supporting Its People, Environment and Economic Development
The Okavango; a river supporting its people, environment and economic development Article (Accepted Version) Kgathi, D L, Kniveton, D, Ringrose, S, Turton, A R, Vanderpost, C H M, Lundqvist, J and Seely, M (2006) The Okavango; a river supporting its people, environment and economic development. Journal of Hydrology, 331 (1-2). pp. 3-17. ISSN 0022-1694 This version is available from Sussex Research Online: http://sro.sussex.ac.uk/id/eprint/1690/ This document is made available in accordance with publisher policies and may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher’s version. Please see the URL above for details on accessing the published version. Copyright and reuse: Sussex Research Online is a digital repository of the research output of the University. Copyright and all moral rights to the version of the paper presented here belong to the individual author(s) and/or other copyright owners. To the extent reasonable and practicable, the material made available in SRO has been checked for eligibility before being made available. Copies of full text items generally can be reproduced, displayed or performed and given to third parties in any format or medium for personal research or study, educational, or not-for-profit purposes without prior permission or charge, provided that the authors, title and full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way. http://sro.sussex.ac.uk Special Issue Journal of Hydrology The Hydrology of the Okavango Basin and Delta in a development perspective Guest editors: Dominic Kniveton, and Martin Todd Paper 1. -
Biodiversity in Sub-Saharan Africa and Its Islands Conservation, Management and Sustainable Use
Biodiversity in Sub-Saharan Africa and its Islands Conservation, Management and Sustainable Use Occasional Papers of the IUCN Species Survival Commission No. 6 IUCN - The World Conservation Union IUCN Species Survival Commission Role of the SSC The Species Survival Commission (SSC) is IUCN's primary source of the 4. To provide advice, information, and expertise to the Secretariat of the scientific and technical information required for the maintenance of biologi- Convention on International Trade in Endangered Species of Wild Fauna cal diversity through the conservation of endangered and vulnerable species and Flora (CITES) and other international agreements affecting conser- of fauna and flora, whilst recommending and promoting measures for their vation of species or biological diversity. conservation, and for the management of other species of conservation con- cern. Its objective is to mobilize action to prevent the extinction of species, 5. To carry out specific tasks on behalf of the Union, including: sub-species and discrete populations of fauna and flora, thereby not only maintaining biological diversity but improving the status of endangered and • coordination of a programme of activities for the conservation of bio- vulnerable species. logical diversity within the framework of the IUCN Conservation Programme. Objectives of the SSC • promotion of the maintenance of biological diversity by monitoring 1. To participate in the further development, promotion and implementation the status of species and populations of conservation concern. of the World Conservation Strategy; to advise on the development of IUCN's Conservation Programme; to support the implementation of the • development and review of conservation action plans and priorities Programme' and to assist in the development, screening, and monitoring for species and their populations. -
Wildland Fire Management Handbook for Sub-Sahara Africa
cover final.qxd 2004/03/29 11:57 AM Page 1 Africa is a fire continent. Since the early evolution of humanity, fire has been harnessed as a land-use tool. Wildland Fire Management Many ecosystems of Sub-Sahara Africa that have been WILDLAND FIRE MANAGEMENT HANDBOOK WILDLAND FIRE MANAGEMENT shaped by fire over millennia provide a high carrying HANDBOOK WILDLAND FIRE MANAGEMENT Handbook for Sub-Sahara Africa capacity for human populations, wildlife and domestic livestock. The rich biodiversity of tropical and sub- tropical savannas, grasslands and fynbos ecosystems is attributed to the regular influence of fire. However, as a Edited by Johann G Goldammer & Cornelis de Ronde result of land-use change, increasing population FOR SUB-SAHARA AFRICA pressure and increased vulnerability of agricultural land, FOR SUB-SAHARA AFRICA timber plantations and residential areas, many wildfires have a detrimental impact on ecosystem stability, economy and human security. The Wildland Fire Management Handbook for Sub-Sahara Africa aims to address both sides of wildland fire, the best possible use of prescribed fire for maintaining and stabilising eco- systems, and the state-of-the-art in wildfire fire prevention and control. The book has been prepared by a group of authors with different backgrounds in wildland fire science and fire management. This has resulted in a book that is unique in its style and contents – carefully positioned between a scientific textbook and a guidebook for fire manage- ment practices, this volume will prove invaluable to fire management practitioners and decision-makers alike. The handbook also makes a significant contribution towards facilitating capacity building in fire manage- ment across the entire Sub-Sahara Africa region. -
Africa Resource Guide Trunk Contents
AFRICA RESOURCE GUIDE TRUNK CONTENTS Upon receiving the map, please check the trunk for all contents on this list. If anything is missing or damaged, please call or email Liesl Pimentel immediately at 1-480-243-0753 or [email protected]. When you are done with the map, carefully check the trunk for all the contents on this list. Please report any missing or damaged items before the map is picked up. PROPS CARDS [ ] Inflatable globe [ ] A Legend-ary Exploration Cards (36) [ ] Electric air pump [ ] Country Cards (52) [ ] Menu holders (40) [ ] Cardinal Directions Cards (32) [ ] Blue nylon scale bar straps (4) [ ] African Animal Safari Cards (32) [ ] Red nylon Equator strap [ ] Physical Features Cards (24) [ ] Bingo chips [ ] Map Keys (4) [ ] Cones: 12 each, Red, Yellow, Green, Blue [ ] Plastic chains: 1 each, Red, Yellow, Green, Blue, Orange [ ] Knotted rope, Yellow Borrowers will be [ ] Hoops (20) financially responsible [ ] Poly spots—Small: 8 each, Yellow, Blue, Red, for replacement costs Green of any missing or [ ] Poly spot—Large: Orange (1) damaged items. [ ] Lanyards: 10 each, Red, Yellow, Green, Blue [ ] Straps (extra) with buckles for tying map for transit (2) [ ] Extra Quick Link (for replacement if lost/broken) Copyright © 2015 National Geographic Society The National Geographic Society is one of the All rights reserved. world’s largest nonprofit scientific and educational organizations. Founded in 1888 to “increase and diffuse geographic knowledge,” the Society’s mis- STAFF FOR THIS PROJECT sion is to inspire people to care about the planet. Dan Beaupré, VP, Experiences, Education and It reaches more than 400 million people worldwide each month Children’s Media through its official journal, National Geographic, and other mag- Julie Agnone, VP, Operations, Education and azines; National Geographic Channel; television documentaries; music; radio; films; books; DVDs; maps; exhibitions; live events; Children’s Media school publishing programs; interactive media; and merchan- Amanda Larsen, Managing Art Director dise.