Atlas of African rainfall and its interannual variability by Sharon E. Nicholson

Cover of: Atlas of African rainfall and its interannual variability | Sharon E. Nicholson

Published by Florida State University, Department of Meteorology in Tallahasee, Fla .

Written in English

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Edition Notes

Book details

StatementSharon E. Nicholson, Jeeyoung Kim, Jon Hoopingarner.
ContributionsKim, Jeeyoung., Hoopingarner, Jon., Florida State University. Department of Meteorology.
ID Numbers
Open LibraryOL13963239M

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Atlas of African rainfall and its interannual variability by Sharon E. Nicholson,Florida State University, Department of Meteorology edition, in English. The Mean Surface Water Balance over Africa and Its Interannual Variability Article (PDF Available) in Journal of Climate 10(12) December with 53 Reads How we measure 'reads'.

Humidity in the region and more importantly the timing of humidity increase and decrease are controlled by the WAM system.

Thus, understanding monsoon dynamics to better predict monsoon onset and retreat in the context of increasing and decreasing relative humidity would allow better prediction of meningitis epidemic risk (Pandya et al.

).Prior to the development of a conjugate Cited by: 1. The interannual and interdecadal variability of Asian rainfall has been studied in relation to the El Niño/Southern Oscillation (ENSO) phenomenon, western Pacific/Indian Ocean sea surface.

Recent rainfall fluctuations in Africa and their relationship to past conditions over the continent Recent rainfall fluctuations in Africa and their relationship to past conditions over the continent Show all authors. S.E., Kim, J. and Hoopingarner, J. Atlas of African rainfall and its interannual variability.

Tallahassee Cited by: The West African Sahel is well known for the severe droughts that ravaged the region in the s and s.

Meteorological research on the region has flourished during the last decade as a result of several major field experiments.

This paper provides an overview of the results that have ensued. A major focus has been on the West African monsoon, a phenomenon that links all of West by: Van Rooy, M.

P., District Rainfall for South Africa and the Annual March of Rainfall over Southern Africa. South African Weather Bureau, 60 pp. Google Scholar Van Rooy, M. P., Extreme rainfall anomalies over extensive parts of South Africa during periods of 1 to 5 successive summer by: rainfall variability - onset and length of rainy season Increased incidence of South Sudan was also working on its First National Communication to the UNFCCC, National Book chapter in East African Agriculture and Climate Change: A comprehensive analysis.

Institute of Development Studies. USAID and USGS Climate. Earth rainfall climatology Is the study of rainfall, a sub-field of ly, a wider study includes water falling as ice crystals, i.e. hail, sleet, snow (parts of the hydrological cycle known as precipitation).The aim of rainfall climatology is to measure, understand and predict rain distribution across different regions of planet Earth, a factor of air pressure, humidity.

Africa is often described as the continent most at risk to the negative effects of climate change, both because of the expected change itself and because of the perceived lack of capacity of Africans and their governments to adapt.

This paper provides an overview of what is known and unknown about Africa’s climate future and examines how possible changes may challenge four. Rainfall changes in Africa: –60 to –90, International Journal of Climatology, 12, – Google Scholar Nicholson, S.E., Kim, J.

and J. Hoopingarner, Atlas of African Rainfall and its Interannual Variability. Tropical Extremes: Natural Variability and Trends features the most up-to-date information on present and future trends related to climate change and tropical extremes. Including contributions from the foremost experts in the field, this important reference addresses the science behind climate change and natural variability in relation to.

In two recent reports in this journal (Hastenrath et al.), we promptly diagnosed the circulation mechanisms that led to extreme flood and drought disasters in Kenya during –These accounts have raised awareness of pending challenges.

Thus, while Kenya experiences rainy seasons in boreal spring and autumn, extreme events have occurred in by: The aim of this study is to understand the inter-annual hydrological variability (precipitation and streamflow) in the basins of the High Atlas in Morocco and to determine how climate fluctuations (represented by the North Atlantic Oscillation (NAO) climate index) are expressed in the hydrological system.

To reach this objective, time series of precipitation and streamflow are processed as Cited by: 5. This study analyzes, at local and regional scales, the rainfall variability across the Agneby watershed at the Agboville outlet over the period – Daily rainfall data from 14 rain gauges are used. The methods used are based, firstly, on the rainfall index which aims to characterize the inter-annual and decadal variability of rainfall and, secondly, on the moving average to determine Cited by: 2.

Annual variability in rainfall amounts, rainfall onset, number of dry days during the rainy season and rainfall distribution was large, and determined variations in yield of cotton. Our analysis showed that the number of dry days is a good indicator of the quality of the rainfall distribution for cotton production, and was strongly related to Cited by: The impacts of rainfall variability on the environment and socioeconomic conditions of the Sudan were discussed.

Taking into consideration factors affecting rainfall of the country like the position of the Inter-Tropical Discontinuity Zone (ITDZ), the subtropical anticyclones and climate change.

Rainfall in the area averages around 1, mm per year, but in the long term it is quite variable having been as low as mm and as high as 1, mm between and While the area is considered quite good for agriculture, as in many areas of the Sudanian Region, farmers have to cope with this interannual variability, compounded by.

African Union, Status of food security and prospects for agricultural development in Africa: AU Ministerial Conference of Ministers of Agriculture, Addis Ababa, 26 pp. Agoumi, A., Vulnerability of North African countries to climatic changes: adaptation and.

Climate can be loosely defined as the ensemble of weather. As such, it is inherent to the atmosphere, but is affected by interactions between the atmosphere and the ocean, the biosphere, the land surface, and the cryosphere. Because climate varies on all time scales (see, e.g., Mitchell, ; NRC.

BOX 3 Patterns of Internal Variability. The El Niño–Southern Oscillation (ENSO) is an interannual variability phenomenon that combines the tropical Pacific Ocean surface water temperature over the eastern equatorial Pacific Ocean with air pressure difference across the tropical western Pacific Ocean basin (the Southern Oscillation).

ENSO has two coupled phases: El Niño (warm phase) and La. Luuq (Somali: Luuq, Arabic: لوق ‎) is a town in the southwestern Gedo province of is one of the older settlements in the area. It is the seat of the Luuq town is located in a bend of the Juba River, where the watercourse flows down from north to south in a horseshoe is also known as Luuq Gan naaneCountry: Somalia, Jubaland.

Studies on rainfall trends and variability made in Ethiopia include Weldeamlak () and Hongwei et al. Using rainfall data spanning from for 12 stations from the Amhara region, Woldeamlak () reported, among other things, of lower variability of Author: Lemma Bekele.

Interannual and interdecadal variability of rainfall over the African continent during the last two centuries. In E. Servat, D. Hughes, J.-M. Fritsch, & M. Hulme (Eds.), Water resources variability in Africa during the XXth Century (pp. Key Finding 3.

Tornado activity in the United States has become more variable, particularly over the s, with a decrease in the number of days per year with tornadoes and an increase in the number of tornadoes on these days (medium confidence).Confidence in past trends for hail and severe thunderstorm winds, however, is e models consistently project environmental changes that.

National Geographic World Atlas,contributing writer US-African Monsoon Multidisciplinary Analysis (AMMA) Science Team Text book: Climate Dynamics, Princeton University Press (, second edition interannual rainfall variability over southern Africa' and the question of.

Rainfall from extreme events increases by a factor of 5 to 10 in CP4A, compared to 2 to 3 in R CP4A also shows larger changes in intraseasonal rainfall variability, dry spells, and short and long duration extreme rainfall than R25, all of which are relevant for hydrology and agriculture.

Philippe Peyrillé, Françoise Guichard. Furthermore, considerable interannual variability exists in the intensity of this upwelling feature, which is explored in section Interannual Variability in NKB Upwelling Figure 7 a shows the mean water column‐integrated primary production from to during the NEM (averaged for January and February when the upwelling signal Author: Z.

Jacobs, F. Jebri, D. Raitsos, D. Raitsos, E. Popova, M. Srokosz, S. Painter, F. Nenci. Fink, A. and P. Speth, Some potential forcing mechanisms of the year-to-year variability of the tropical convection and its intraseasonal ( day) variability. Int.

of Climatol., 17 (14), "Africa Climate Week," March, Accra, Ghana. Regional Climate Weeks: Africa Climate Week, MarchProgram & Information--See especially: Event guide for "Africa Climate Week" 40 pages in PDF format United Nations Development Programme (New York): "Ghana to kick start Africa Climate Week," Ma United Nations Framework Convention on Climate.

Tropical meteorologists have long suggested that it is not an appropriate paradigm for the seasonal cycle over equatorial Africa, yet the use of this paradigm persists.

The structure of the motion field during the rainy seasons of the boreal spring and autumn was examined over central and western equatorial Africa. Trackline of the PIRATA FR26 survey, together with CTDO2/LADCP profiles positions (Courtesy: J.

Grelet, IRD) T-FLEX buoy before its deployment at 23°W-0°N Last preparation of the T-FLEX buoy before its deployment at 10°W°S and sensors installation along the first 60m of the cable; the buoy on the left is the ATLAS just retrieved, the T.

The Tropic of Capricorn (or the Southern Tropic) is the circle of latitude that contains the subsolar point at the December (or southern) is thus the southernmost latitude where the Sun can be seen directly overhead. Its northern equivalent is the Tropic of Cancer. The Tropic of Capricorn is one of the five major circles of latitude marked on maps of Earth.

Accessed on 23/12/ Beltrando, G. and Camberlin, P., Interannual variability of rainfall in the eastern horn of Africa and indicators of atmospheric circulation. Int. Climatol. 13, Krishnamurthy, V. and J.

Shukla, Intraseasonal and interannual variability of rainfall over India. Journal of Climate, 13, Reale, O. and J. Shukla, Modeling the effects of vegetation on Mediterranean climate during the Roman classical period. Interannual and interdecadal variability of rainfall over the African continent during the last two centuries.

Proceedings of the Abidjan ’98 conference, Abidjan, Côte d’Ivoire, November. Michael Dettinger is a research hydrologist for the U.S. Geological Survey, Branch of Western Regional Research, and a research associate at Scripps Institution of Oceanography, who researchs the hydrology, climate, and water resources of the West, focusing on regional surface water and groundwater resources, hydroclimatic variability, and climate-change impacts.

Non stationarities in the Atlantic predictors of West African Monsoon Yann Planton, Hervé Giordani, Aurore Voldoire and Guy Cani-aux Interannual variability of the Atlantic cold tongue Dóris Veleda, Carlos Noriega, MoacyrAraujo,FabriceHernan-dez and Raul Montagne The influence mapping of the Amazon River discharge in the Tropical.

Purpose. This IDS successor project aims to reinforce and amplify the preceding IDS interdisciplinary study by incorporating the potential impacts of similar environmental phenomena and processes in the adjoining Northern and Southern Africa as well as the Atlantic and Indian Oceans on the water cycle dynamics in the NSSA region.

Global and regional multi-model evaluation indicates strong warming and drying of the Mediterranean region (Hochman et al.,). Precipitation predictions: Japanese and RCM models both show increased interannual variability and probability for increases of multi-year droughts.

@article{osti_, title = {Final Technical Report for DOE Award SC}, author = {Robertson, Andrew}, abstractNote = {This report summarizes research carried out by the project "Collaborative Research, Type 1: Decadal Prediction and Stochastic Simulation of Hydroclimate Over Monsoonal Asia.

This collaborative project brought together climate dynamicists (UCLA, IRI Author: Andrew Robertson.Fink, A. and P. Speth, Some potential forcing mechanisms of the year-to-year variability of the tropical convection and its intraseasonal (day) variability. Int.

J.Mehta, V. M., and H. Wang, Interannual variability of the West Pacific and West Atlantic warm pools in remote sensing based and ECCO-assimilated oceanographic data sets.

NASA Sea Surface Temperature Science Team Meeting. Seattle, Washington, 8 November

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