Thesis from WMO Fellowship Division
Thesis from the WMO Fellowship Division
For several decades, through its fellowship programme, WMO has trained many experts from developing countries. Highly commendable theses/dissertations have been prepared by these fellows in partial fulfillment of requirements for their post-graduate studies.
Given the limited information available to experts and students alike on issues related to meteorology, hydrology and allied disciplines we wish to share as much research related information as possible, through the WMO online library, on the work of the postgraduate fellows. Hence, this online dissemination of excerpts of theses/dissertations prepared by WMO fellows.
We hope readers will find the materials useful. Should you have any inquires, please contact fel(at)wmo.int (Please replace (at) by @).
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Maize Suitability in the Lowlands of Lesotho
The Food and Agriculture Organization (FAO) defined that the suitability is a function of crop climate requirements and land characteristics and it is a measure of how will the qualities of land unit matches the requirements of a particular form of land use. The aim of this research is to improve maize production in the lowlands of Lesotho, this is one of the agro-ecological zones with the most arable land and good soils so it is best to determine the suitability of each crop across this region. This will be achieved by quantitatively and qualitatively looking at the climate conditions require ...
Spatial/Temporal Distribution of Rainfall and the Dynamic Factors Associated over African Great Lakes Region from 1981 to 2016
Based on Global Precipitation Climatology center (GPCC) precipitation data and Era-Interim Zonal and Meridional wind, relative humidity, Sea Level Pressure and Sea surface temperature data from ECMWF, Statistical methods were conducted to find out the interannual variability of rainfall and its dynamic factors in AGLR from 1981 to 2016. The results show that there are two (long and short) rainfall seasons over AGLR, MAM and OND respectively. The empirical orthogonal function was used to reveal through the dominant principal components (PC1) of the first EOF, the extreme years (wet and dry) for ...
The comparison of SWH from ocean wave spectra and nadir beam of SWIM
The surface wave investigation and monitoring (SWIM) will be one of the two payload instruments carried by China France Oceanography Satellite (CFOSAT) with a planned launch date in mid-2018. SWIM has six beams rotating around the vertical axis at incidence angles 0,2,4,6,8,10 degree. With nadir-beam, the SWH and wind speed can be detected as the same principle as an altimeter. At the same time, the ocean wave spectrum beams can also Catch the significant wave height (SWH). To find which SWH is more stable and accurate, first, the thesis presents an overview of SWH detection from a satellite. ...
Гидродинамический прогноза погоды на территории Гвинеи
Agriculture is the largest employer in the world and is probably the most dependent on the climate of all human activities. In recent years there have been events that have put in evidence the vulnerability of global food security to major meteorological phenomena, both in global agricultural markets and the world economy. The food price crisis and the subsequent economic crisis reduced the purchasing power of large segments of the population in many developing countries, which seriously reduced their access to food and thus undermined their food security. During the years 2009 and 2010 in Ven ...
Analysis inter decadal of climate variability facing projections of the CMIP5 models and its involvement in the agricultural production of Venezuela
Agriculture is the largest employer in the world and is probably the most dependent on the climate of all human activities. In recent years there have been events that have put in evidence the vulnerability of global food security to major meteorological phenomena, both in global agricultural markets and the world economy. The food price crisis and the subsequent economic crisis reduced the purchasing power of large segments of the population in many developing countries, which seriously reduced their access to food and thus undermined their food security. During the years 2009 and 2010 in Ven ...
Change of diurnal precipitation in different phases of Bsiso
As we know tropical intraseasonal oscillation (ISO) was described as 2 modes such as Boreal summer intraseasonal oscillation (BSISO) during boreal summer and Madden-Julian Oscillation (MJO) dominates during boreal winter. In summer time, Thailand where located at the coastal region at the Equator which is effected by BSISO. Some week there is strong diurnal cycle but some week is opposite. The purpose of this work is to study the evolution of BSISO and to study the change of diurnal precipitation in different phases of BSISO. Tropical Rainfall Measuring Mission (TRMM) version 3B42 data on 0.25 ...
Climate change effect on wheat production over Ethiopia by model simulation and prediction
Climate is one of the key factors that affect agriculture. Climate change and climate variability have been observed, typically shown as global warming due to the increased greenhouse gases. The change in climate is even predicted to be rapped and sharp in recent future and the impacts of extreme climate condition associated with climate change will be high on agriculture. Studying the impacts of climate change, especially the effects of temperature and precipitation on agriculture, is important for food safety, agricultural management, and sustainable development.
Diagnosis of floods/drought and their associated circulation anomaly over Malawi
Floods and droughts are one of extreme weather climatic events that result in loss of life and property in Malawi. However, a well detailed knowledge of understanding of previous extreme climatic events and their associated impacts can be a precautionary in reducing their impacts, as it will help to project future events timely. Therefore this paper presents an analysis of Dec-Feb seasonal flood/drought events and their associated circulation anomalies over Malawi. The DJF seasonal flood/drought was studied using monthly data from 9 selected stations for the period of 1978-2010. A set of regio ...
Evaluation of subseasonal prediction of extreme rainfall events and their relationship with the Madden Julian Oscillation over the Solomon Islands
The conference provides an opportunity for students especially PhD students to present their work and get feedback from other professionals. Not only that but the it also offers an excellent chance for networking among aspiring scientists and the possibility for future collaborations.
Study of interannual variability of October-December rainfall season over Djibouti
Rainfall is a very important weather and climate parameter that affects social and economic activities in Djibouti. This leads to droughts, floods and humanitarian disasters over the country. The rainfall climatology of the country has some changes which need to be taken into account while planning for economic activities such as civil and structural engineering. The whole country receives significant rains in the months of (October – December) and (March – April) as known except for the southern parts of the country. The southern part of the country gets its rains in the months of (June to Au ...
Les systèmes convectifs pendant la mousson en région tropicale : Mémoire de fin d’étude pour l’obtention du diplôme de technicien supérieur de la météorologie
Dans ce travail nous avons voulu étudier sur la zone tropicale les liens entre les systèmes convectifs et la pluie. L’algorithme TOOCAN introduit a pour but d’améliorer la caractérisation de l’évolution du bouclier nuageux associe aux systèmes convectifs au cours de leur cycle de vie. Des composites des structures précipitantes au cours du cycle de vie du système nuageux organise sont alors construits en fusionnant les données des satellites géostationnaires avec des estimations de précipitations issues des mesures micro-ondes à bord des satellites défilant. L’objectif de ce travail est non se ...
Aerosol Measurement by Raman Lidar
This paper examines the aerosol extinction coefficient profiles measured by Rayleigh-Raman-Mie-Lidar (RRML) system in Nanjing, China. I introduced two lidars methods (Raman and Fernald) and detection principle, and two lidars data Using Raman analysis method and Fernald analysis method to obtained aerosol extinction coefficient. Aerosol profiles at 607 nm and 532 nm over ranges from 6 km to 10 km were obtained using respectively Raman lidar and Rayleigh lidar in Nanjing.
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