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Tropical And Sub Tropical West Africa

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Tropical and sub tropical West Africa Marine and continental changes during the Late Quaternary

Tropical and sub tropical West Africa   Marine and continental changes during the Late Quaternary Book
Author : P. Giresse
Publisher : Elsevier
Release : 2007-11-30
ISBN : 9780080556031
Language : En, Es, Fr & De

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Book Description :

West Africa and the eastern Atlantic stretching from Mauritania in the north to Namibia in the south offer a large latitudinal stretch incorporating nearly symmetrical climatic gradients from the Equator. On the time scale of Quaternary Glacial and Interglacial cycles, today, we possess well-documented and recently published marine sedimentary records showing changes in oceanic and atmospheric circulations and terrestrial fluxes. Deep-sea sediment records contain a wide range of palaeoenvironmental indicators like oxygen and carbon isotopes, alkenones, foraminiferal and other planktonic assemblages over time periods up to and greater than 125,000 years. These are signals of temperature and circulation shifts and allow Interglacial and Glacial comparisons on a regional and inter-hemispheric scale. However, this effort to synthesize the existing knowledge cannot yet aspire to a global modelling. Linking with terrestrial records, albeit spatially patchy and generally lacking a firm chronology, this book points to shorter time scale chronologies from lakes, marshes and river deposits. Diverse and not very wellknown literature, both French and English, is reported here. Lastly, the book records recent knowledge of the first steps of human occupation of frequently hostile environments and considers the environmental impact of ancient and modern societies. * Covers the recent studies about marine Quaternary environments off West Africa, as well as continental Quaternary environments of tropical and sub-tropical West Africa (over 10,000 to 100,000 years) * Compares the parallel between palae-oenvironmental trends according to latitudinal gradients

Tropical and Sub Tropical Fruits of West Africa

Tropical and Sub Tropical Fruits of West Africa Book
Author : Nazmul Haq
Publisher : Unknown
Release : 1999
ISBN : 9780854326952
Language : En, Es, Fr & De

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Book Description :

Download Tropical and Sub Tropical Fruits of West Africa book written by Nazmul Haq, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

The Crustacea Galatheidae from the Tropical subtropical Region of West Africa

The Crustacea Galatheidae from the Tropical subtropical Region of West Africa Book
Author : Sadayoshi Miyake,Keiji Baba
Publisher : Unknown
Release : 1970
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download The Crustacea Galatheidae from the Tropical subtropical Region of West Africa book written by Sadayoshi Miyake,Keiji Baba, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Meteorology of Tropical West Africa

Meteorology of Tropical West Africa Book
Author : Douglas J. Parker
Publisher : John Wiley & Sons
Release : 2017-04-24
ISBN : 1118391306
Language : En, Es, Fr & De

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Book Description :

8.1.6.2 Prediction of meningococcal meningitis in the West Africa dry season

The Marine Macroalgae of the Tropical West Africa Sub region

The Marine Macroalgae of the Tropical West Africa Sub region Book
Author : D. M. John,George W. Lawson,Gabriel K. Ameka
Publisher : Unknown
Release : 2003
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download The Marine Macroalgae of the Tropical West Africa Sub region book written by D. M. John,George W. Lawson,Gabriel K. Ameka, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Seaweeds of the Tropical West Africa Sub region Identification Manual

Seaweeds of the Tropical West Africa Sub region  Identification Manual Book
Author : David M. John,George W. Lawson,Gabriel Ameka
Publisher : Unknown
Release : 2001
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Seaweeds of the Tropical West Africa Sub region Identification Manual book written by David M. John,George W. Lawson,Gabriel Ameka, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Duricrusts in Tropical and Subtropical Landscapes

Duricrusts in Tropical and Subtropical Landscapes Book
Author : Andrew Goudie
Publisher : Unknown
Release : 1973
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Duricrusts in Tropical and Subtropical Landscapes book written by Andrew Goudie, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Oversea Education

Oversea Education Book
Author : Anonim
Publisher : Unknown
Release : 1962
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Oversea Education book written by , available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Gold Exploration in Tropical and Sub tropical Terrains with Special Emphasis on Central and Western Africa

Gold Exploration in Tropical and Sub tropical Terrains with Special Emphasis on Central and Western Africa Book
Author : Machiel Christoffel Breedt
Publisher : Unknown
Release : 1995
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Gold Exploration in Tropical and Sub tropical Terrains with Special Emphasis on Central and Western Africa book written by Machiel Christoffel Breedt, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Dynamics of Forest Ecosystems in Central Africa During the Holocene Past Present Future

Dynamics of Forest Ecosystems in Central Africa During the Holocene  Past     Present     Future Book
Author : J. Runge
Publisher : CRC Press
Release : 2008-02-19
ISBN : 0203930428
Language : En, Es, Fr & De

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Book Description :

This book consists of scientific papers resulting from an international workshop: ‘Environmental and Cultural Change in West- and Central Africa’ organized by the German Research Foundation (DFG) in Yaoundé, Cameroon, March 2006. Problems of Holocene and Late Pleistocene modifications of the rain forest savanna fringe and their possible influence on cultural innovations are discussed. The book will be of interest to all concerned with tropical forests and related development problems of third world countries, especially ecologists, botanists and earth scientists. It will be valuable for advanced undergraduates and postgraduates as a reference for review and overview articles as well as a source of information for new original manuscripts on the topic of Late Pleistocene and Holocene landscape evolution in the lower latitudes of Africa. Palaeobotanists, Palynologists and Quaternarists equally will find this edition useful for their work.

Medicinal Plants in Tropical West Africa

Medicinal Plants in Tropical West Africa Book
Author : Bep Oliver-Bever
Publisher : Cambridge University Press
Release : 1986-01-23
ISBN : 9780521268158
Language : En, Es, Fr & De

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Book Description :

First published in 1986, this book describes the most important medicinal plants in tropical West Africa and similar humid tropical climates. After a short introduction about early traditional medicine, the bulk of the book gives an account of locally occurring plants, grouped by their medicinal actions. Plants that affect the cardiovascular and nervous systems are discussed, as are those with antibiotic, insecticidal and molluscicidal properties. Those which affect the hormonal systems of humans are catalogued and so are others that act as adrenal-cortex, sex and thyroid hormones. There is a full botanical index, which includes the commonly found synonyms for many of the plants and the work is illustrated by the author's own water colours. It may be of particular interest and use to pharmacists, biochemists, botanists and pharmacologists and of great value to those who exploit locally available resources in treating diseases in tropical areas.

Fire in Vegetation and Its Use in Pasture Management

Fire in Vegetation and Its Use in Pasture Management Book
Author : Oliver West
Publisher : Unknown
Release : 1965
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

Download Fire in Vegetation and Its Use in Pasture Management book written by Oliver West, available in PDF, EPUB, and Kindle, or read full book online anywhere and anytime. Compatible with any devices.

Atlantide report

Atlantide report Book
Author : Anonim
Publisher : Unknown
Release : 1977
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

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Viruses Infecting Yam in Ghana Togo and Benin in West Afric

Viruses Infecting Yam in Ghana  Togo and Benin in West Afric Book
Author : Angela Eni
Publisher : LAP Lambert Academic Publishing
Release : 2011-06
ISBN : 9783844382495
Language : En, Es, Fr & De

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Book Description :

Yam is a food security crop in West Africa and other tropical and sub-tropical regions of the world. However, yam production and productivity is threatened by viral diseases which reduce the yield of the desired yam tuber and also hinder the exchange of yam germplasm for breeding and improvement purposes. The documentation of virus prevalence and variability among strains of a particular virus, provide a foundation for deploying strategies to contain virus spread, facilitate the development of improved diagnostic methods and mitigate crop loses. This book reports the occurrence, distribution and molecular variability among viruses infecting yam in major yam producing areas in Ghana, Togo and Benin, three of the five world topmost producers of yam. The procedure for the production and optimization of polyclonal antibodies for the detection of some yam viruses is also described. This book would be useful to breeders, research scientists, quarantine and extension officers within the National and International Agricultural Research institutes in Africa and around the world. It would also serve as a valuable guide for graduate students

Understanding Rainfall Variability Over West Africa and Climate Sensitivity in the Tropics

Understanding Rainfall Variability Over West Africa and Climate Sensitivity in the Tropics Book
Author : Gang Zhang (Ph. D.)
Publisher : Unknown
Release : 2015
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

West African rainfall plays an important role in tropical climate and hydrological cycle. This study aims to advance our understanding of the West African rainfall across different timescales, from the diurnal cycle to interannual variations. Then, the study is extended to understand the climate sensitivity in the tropics with an increase of greenhouse gases. First, on a short timescale, the diurnal cycle of warm season rainfall over West Africa is investigated. In both the climatology and the 2006 case study, most of West Africa shows a single diurnal peak of rainfall in either the afternoon or at night. Afternoon rainfall peaks are associated with an unstable lower troposphere. Nocturnal rainfall peaks are associated with rainfall systems propagating westward. They occur most frequently about 3°-10° of longitude downstream of regions with afternoon rainfall peaks. Rainfall systems in the convection-permitting simulation show similar westward propagation with afternoon peaks associated with elevated topography and nocturnal peaks downstream of the topographic afternoon rainfall regions. However, the model fails to reproduce the observed afternoon rainfall peaks in several regions far away from the downstream of elevated topography. Second, on a longer timescale, the climatology and interannual variations of the West African monsoon demise are investigated using the Tropical Rainfall Measuring Mission and the Global Precipitation Climatology Project precipitation datasets along with the ERA-Interim reanalysis. During monsoon demise, the rainfall maximum progresses southward smoothly from the Sahel to the Gulf of Guinea. The climatological monsoon demise date is October 20th. The demise date varies between October 5th and 30th. An early (late) demise is associated with an anomalously strong (weak) North Atlantic subtropical high. The monsoon season total rainfall is found to be significantly correlated with the demise date. Finally, idealized regional model simulations are used to understand the climate sensitivity over the broad tropical region. The model is configured with idealized continents and oceans. With a doubling of CO2, the land and the ocean warm at different rates. The changes of the continental heat lows, subtropical highs and land-based rainfall in the tropics are explored and linked to the surface warming.

Meteorology of Tropical West Africa

Meteorology of Tropical West Africa Book
Author : Douglas J. Parker,Mariane Diop-Kane
Publisher : John Wiley & Sons
Release : 2017-02-13
ISBN : 1118391276
Language : En, Es, Fr & De

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Book Description :

Meteorology of tropical West Africa: the Forecasters’ Handbook presents the science and practice of weather forecasting for an important region of the tropics. Connecting basic theory with forecasting practice, the book provides a unique training volume for operational weather forecasters, and is also suitable for students of tropical meteorology. The West African region contains a number of archetypal climatic zones, meaning that the science of its weather and climate applies to many other tropical regions. West Africa also exhibits some of the world’s most remarkable weather systems, making it an inspiring region for students to investigate. The weather of West Africa affects human livelihoods on a daily basis, and can contribute to hardship, poverty and mortality. Therefore, the ability to understand and predict the weather has the potential to deliver significant benefits to both society and economies. The book includes comprehensive background material alongside documentation of weather forecasting methods. Many examples taken from observations of West African weather systems are included and online case-studies are referenced widely.

Tropical Life

Tropical Life Book
Author : Anonim
Publisher : Unknown
Release : 1936
ISBN : 0987650XXX
Language : En, Es, Fr & De

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Book Description :

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African Palaeoenvironments and Geomorphic Landscape Evolution

African Palaeoenvironments and Geomorphic Landscape Evolution Book
Author : Jörgen Runge
Publisher : CRC Press
Release : 2010-11-01
ISBN : 0203845277
Language : En, Es, Fr & De

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Book Description :

This 30st jubilee volume (2010) of "Palaeoecology of Africa" looks back and reflects the "state of the art" of what is actually known on former African climates and ecosystems in the format of review articles authored by specialists in the field. New research articles on climate and ecosystem dynamics as well as applied topics on geomorphic ha

Climatology of West Africa

Climatology of West Africa Book
Author : Derek F. Hayward,Julius S. Oguntoyinbo
Publisher : Routledge
Release : 2019-10-28
ISBN : 100069223X
Language : En, Es, Fr & De

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Book Description :

Originally published in 1987, this book brings together information previously buried in specialist sources and makes it available to the student in a non-technical and well-illustrated synthesis. It builds a clear and detailed picture of the climates of West Africa, describing and explaining them and showing how crucial this understanding is to everyday life. The climate’s relevance to water resources, agriculture, health and industry is systematically considered.