Moudi Igri Pascal

CAPC-AC, Douala

The first dekad of January 2020 was characterised by heavy precipitation in the capital of the Republic of Congo, Brazzaville, which led to several localised landslides. Satellite-derived rainfall estimates and rain-gauge totals illustrate a strong wet spell between the 6th and 9th January 2020 across southern Congo. This study highlights the gener...

Extreme rainfall events are a serious threat to the well-being of Cameroon's society. The reliability of studies on extreme events such as floods depends on the quality of the data and their distribution in time and space. Although these topics are still incomplete in many countries. This present work focuses on the action of extreme rainfall varia...

Squall lines observed over the sahelo-sudanese regions are responsible for most of the annual rainfall recorded in these regions. They originate from the development of convective processes embedded in the Mesoscale Convective Systems (MCS). The impact assessment of the West African Monsoon (WAM) on the development of squall lines in the sahelo-sud...

Les produits pluviométriques quotidiens (3B42) et mensuels (3B43) de Tropical Rainfall Measuring Mission (TRMM) sont évalués par rapport aux observations des stations météorologiques synoptiques au Cameroun et selon les principales zones agroclimatiques. Pour atteindre cet objectif, des métriques déterministes et catégorielles ont été utilisées, ai...

The Tropical Rainfall Measuring Mission (TRMM) daily (3B42) and monthly (3B43) rainfall products are evaluated relative to synoptic weather station observations in Cameroon and according to the main agro‐climatic regions. In order to achieve this goal, deterministic and categorical metrics were used, as well as interannual variability and seasonal...

The study aims to assess the local response of the regional climate model version 4.6 (RegCM4.6) to the coupling of ocean–atmosphere interaction in Central Africa. The ability of the model was evaluated over six years (1 January 2001 to 31 December 2006) by conducting two different experiments with the Grell convective scheme. The experiments were...

L’étudevise à évaluer la réponse locale de la version 4.6 du modèle climatique régional (RegCM4.6) au couplage de l'interaction océan‐atmosphère en Afrique Centrale. L'habileté du modèle est évaluée sur une période de six ans (du 1er janvier 2001 au 31 décembre 2006) en effectuant deux différentes expériences avec le schéma convectif Grell. Les exp...

A Weather Research and Forecasting (WRF) model at a horizontal resolution of 12 km has been analysed for the month of July 2018 over the North region of Cameroon. For the first time, a high-resolution WRF version 3.7 is being run operationally over this part of the country for wet weather forecast. In such a study, detailed validation of the WRF mo...

In this study, the weather conditions of the accident at Maroua-Salak airport on 02 August 2020 are analyzed. This C130 aircraft accident took place under bad weather conditions. This bad weather is diagnosed using the models as CFS, GFS and GEFS that reanalyze outputs of the results. At the end of this re-analysis, the result obtained shows that t...

State of Climate in Africa, 2020

With the recurrence of extreme weather events in Central Africa, it becomes imperative to provide high-resolution forecasts for better decision-making by the Early warning systems. This study assesses the performance of the Weather Research and Forecasting (WRF) model to simulate heavy rainfall that affected the city of Douala in Cameroon during 19...

Forecasts on sub-seasonal to seasonal (S2S) timescales have huge potential to aid preparedness and disaster risk reduction planning decisions in a variety of sectors. However, realising this potential depends on the provision of reliable information that can be appropriately applied in the decision-making context of users. This study describes the...

In regions featuring strong convective activity (such as the Congo Basin, CB), turbulent mixing in the planetary boundary layer strongly affects the water budget. In this study, we use a process-based evaluation to assess the performance of the Rossby Centre Regional Climate Model (RCM) RCA4 in simulating the September-November CB rainfall, under c...

L’étude vise à évaluer la réponse locale de la version 4.6 du modèle climatique régional (RegCM4.6) au couplage de l’interaction océan-atmosphère en Afrique Centrale. L’habileté du modèle est évaluée sur une période de six ans (du 1er janvier 2001 au 31 décembre 2006) en effectuant deux différentes expériences avec le schéma convectif Grell. Les ex...

Training on PUMA station

Lessons learned in SAWIDRA Project, financed by EU and administrated by ClimDev Special Fund (African Development Bank)

One of the solutions for resolving the problem of energy production deficit in Central Africa is to promote renewable energy sources. The knowledge of the solar variability represents a determining factor for design, dimensioning, performance assessment, and energetic management of renewable energy conversion systems. In this work, we analyze the b...

For numerical weather prediction over a particular region, it is important to know the best combination of physical parameterizations available in the considered modelling frame work. The main objective of the study is to obtain the best combination of the weather research and forecasting (WRF) model physics for accurately simulating high-impact we...

For numerical weather prediction over a particular region, it is important to know the best combination of physical parameterizations available in the considered modelling frame work. The main objective of the study is to obtain the best combination of the weather research and forecasting (WRF) model physics for accurately simulating high- impact w...

An unusual extreme precipitation affected the Douala town of Cameroon during 19–20 June 2015. 24-h accumulated rainfall recorded, exceeded 80 mm/day and led to flash floods, loss of life and severe damage in the area. This study presents the results of a numerical simu- lation of this event using the Weather Research and Fore- casting (WRF) model o...

The main goal of this work is a feasibility study for the Bayesian Processor of Output (BPO) method applied to tropical convective precipitation regimes over Central and West Africa. The study uses outputs from the Weather Research and Forecasting (WRF) model to develop and test the BPO technique. The model ran from June 01 to September 30 of 2010...

One of the solutions for energy deficit in Central Africa is to promote renewable energy sources.The knowledge of the solar variability represents a determining factor for design and energetic management of renewable energy conversion systems.

Nowcasting is commonly regarded as an end-to-end forecasting process for high impact weather via providing rapidly updated, high precision meteorological products and services from data collection to the end users. The Symposium aims at examining the current state-of-art nowcasting and very short range forecast capabilities, the emerging observatio...

This poster presents the challenges and the different actors involved in the air transport for a safe and efficient navigation.

This study aims at evaluating the ability of a Numerical Weather Prediction (NWP) model to capture the spatial distribution and the magnitude of rainfall during 3 recent intense events (15-17 June 2011, 23-25 August and 04-06 September 2012) observed over Western and Central Africa, as well as the associated atmospheric and near surface conditions....

This paper examines the connection between the probability of precipitation and forecast amounts from Weather Research and Forecasting (WRF) model runs over Central and West Africa. A one season period (June–September 2010) was used to investigate the quantitative precipitation forecast–probability relationship. The predictive capability of this re...

Preliminary results

The main goal of this work is to investigate the skills of Eta weather forecast model in forecasting precipitations, temperature and sea level pressure. The model domain extends from 6°W to 29°E and 6°S to 21°N. The model is run with a horizontal resolution of 48 km with 45 vertical levels and initial and boundary conditions were given by National...

This paper deals with the simulation of the NOx concentration over Douala for the period 2002–2006 by means of the American Meteorological Society (AMS)/Environmental Protection Agency (EPA) Regulatory Model (AERMOD) model, version 07026. Its sensitivity to local meteorological fields and land use parameters are investigated by selecting different...