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SIG Sahel – ACF
SIG Sahel – ACF

Monitoring and Early Warning System in the Sahel

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SIG Sahel – ACF
SIG Sahel – ACF

Monitoring and Early Warning System in the Sahel

Category: Pays

Publications

Interactive Dataset- Sahelian Biomass

08/06/201721/01/2024

The ongoing droughts in the African Sahel zonehave triggered one of the longest-running crises faced by the international humanitarian community. Since the 1970s, the zone, which supports a largely agro-pastoralist population, has been in a near-continuous state of humanitarian crisis due to food insecurity caused by drought and desertification, and exacerbated (in some countries) by civil violence. The impact is uneven and shifting, so it’s critical to monitor trends like vegetation growth (including food for animals to graze on and crops that people grow) on a district-by-district basis.

Read about it here

 

See the visualisation here

Publications

Previsions Saisonnières pour l’Afrique de l’Ouest

26/05/201725/10/2017

Telecharger les rapports ici

Previson Agro-Meteo_PRESASS-2017 Previson Agro-Meteo_PRESASS-2017
Previson-Climat_PRESASS-2017 Previson-Climat_PRESASS-2017
Previson-hydro_PRESASS-2017 Previson-hydro_PRESASS-2017
COMMUNIQUE FINAL PRESASS ACCRA 2017 VF COMMUNIQUE FINAL PRESASS ACCRA 2017 VF
FINAL COMMUNIQUE PRESASS ACCRA 2017 EN FINAL COMMUNIQUE PRESASS ACCRA 2017 EN

Source: ACMAD/AGHRYMET/ Ghana Meteorological Agency

precipitation_JAS

Des cumuls pluviométriques excédentaires sont attendus dans les zones couvrant le Nord Ghana, le Nord Togo, le Nord Bénin, la moitié Est du Burkina Faso, l’Ouest Nigéria, l’Ouest Niger, le Centre Mali, le Sud Mauritanie, la Gambie, le Nord Sénégal, le Sud Tchad et l’Est Cameroun. Des dates de début de saison précoces sont attendues dans les mêmes zones, élargies à toute la bande agricole du Niger, au Nord Nigeria et au Centre Tchad. Les pays de la partie Ouest de la bande Sahélo-soudanienne devraient s’attendre à une fin de saison précoce anormale; alors que partout ailleurs, des dates de fin de saisons tardives anormales sont plus probables. Il est en outre attendu que des séquences sèches longues anormales soient observées pendant la phase d’installation des cultures dans toute la zone Sahélo-soudanienne de l’Afrique de l’Ouest. La majeure partie du Burkina Faso, l’extrême Sud Mali et les parties Nord de la Côte d’Ivoire, du Ghana, du Togo et du Bénin devrait aussi connaître des séquences sèches longues dans la deuxième moitié de la saison des pluies.

 

Hydro

Des écoulements moyens ou supérieurs à la moyenne des trente dernières années sont attendus sur les bassins fluviaux de la région ouest-africaine, en dehors du bassin du fleuve Mono (Togo et Bénin) et de la partie inférieure du fleuve Volta (dans sa partie Ghanéenne principalement). Ainsi, les parties supérieures, moyennes et inférieures du bassin du Sénégal, la partie moyenne du bassin du fleuve Niger, le haut et moyen bassin de l’Ouémé (Bénin), et le haut bassin de la Volta devront connaître des écoulements supérieurs à la moyenne. Dans le bassin du Lac Tchad, la partie sud du sous bassin de l’affluent Logone, la partie aval du système Chari-Logone ainsi que le sous bassin de la Komadougou-Yobé devraient également connaître des écoulements au-dessus de la moyenne. Quant au bassin inférieur du fleuve Niger et le sous basin de la Bénoué (Cameroun et Nigeria), les bassins moyens et inférieurs de la Volta, les bassins côtiers de la Comoé, la Sassandra, le Bandama ainsi que le fleuve Gambie, des écoulements moyens sont attendus.

Carte+Biomasse

 

Publications

Anomalie d’Accessibilité des Eaux de Surface au 21 Mai 2017

26/05/201725/10/2017

Anomalie_Hydro_1705

Publications

Lean-Season Update- April 2017

03/05/201709/01/2024
Telecharger Rapport
Téléchargez le PDF du bulletin

Perspectives de sécurité alimentaire

1-fsl

La campagne agricole 2016-2017 était globalement satisfaisante, avec une production céréalière supérieure à la moyenne quinquennale de 17,5%. Cependant, de légères diminutions ont été enregistrées au Libéria (-7,5%) et en Mauritanie (-1,2%). La production de tubercules a augmenté de 10% par rapport à la moyenne de cinq ans. La production hors saison et de jardinage a fonctionné de manière habituelle, soutenue par une bonne disponibilité globale de l’eau de surface pour la saison. Ces cultures vont compléter les stocks alimentaires des ménages.

The pastoral situation, pasture and watering conditions of livestock are average to satisfactory despite fodder deficits registered in a large part of the Sahelian belt notably in Burkina Faso, Mali, Mauritania, Niger and Chad. Transhumance movements remain normal except in the fodder-deficit areas and conflict zones, especially in the Lake Chad basin, northern Mali and northwest Niger. The significant decrease in the terms of trade for herders is having a seriously impact on access to food for pastoral populations in Niger, Tchad and Nigeria.

According to the Cadre Harmonisé analysis around 9.6 million people need humanitarian assistance, among whom 8.2 million are in crisis, 1.4 million are in emergency and 44.000 are in famine.

2 prix

Source: WFP/VAM 2017

Market functionality is satisfactory except in the Lake Chad basin due to civil insecurity. Cereals prices have started to increase significantly in Niger, Mali and Mauritania compared to the 5 year averages. Livestock prices for cattle and small ruminants are generally decreasing in the region due to the decrease in demand from Nigeria which affects herders purchasing power. The depreciation of currencies in Nigeria, Liberia, Sierra Leone and in Ghana, as well as the civil insecurity around the Lake Chad basin, constitute the principal factors affecting prices and flows between countries. In the East basin, this situation has caused a reversal of flows of cattle, poultry, onions and other cash crops between Nigeria and Niger.

Agro-Pastoral Campaign- Niger Alert

3-nigerbm

Source ACF Niger Biomass Report 2016

The 2016/2017 Agro-Pastoral campaign marks a considerable deterioration from last year’s favorable situation.

The onset of the dry season in Niger has been met with an acute forage deficit. Predictions made in October have been confirmed by reports from the Nigerien Ministry of Livestock, OCHA and ACF field data.

The lack of available pasture land is putting significant pressure on pastoral communities and there is an urgent need for animal fodder distribution. Moreover, the strong decrease in livestock’s prices and the rise of cereals’ prices has greatly deteriorated the terms of trade for herders in already fragile areas and is causing strong concerns regarding the ability for the affected population to assure their food and nutritional security. The key areas which have been identified  as the most affected are Tahoua (Tchintabaradene), Maradi (Mayahi), Zinder (Tanout).

Surface Water Update

Anomalie 1703

Surface water occurrence remains normal or favorable across the Sahel. The distribution of current lakes with a surface over 1km² is above the long-term average. That said, conditions remain less favorable then last year’s agropastoral campaign.

Lake Chad Basin Update

5-NE

 

Conflicts and violence have caused the displacement of more than 4.9 million people, out of which 2.4 million are in the LCB areas (source: OCHA). Despite a massive scale-up of humanitarian interventions in North-East Nigeria and the liberation of some LGAs the situation remains critical and current efforts should be maintained in order to support severely food and nutrition insecure populations.

It is estimated that around 43.000 people are currently in famine and this figure will most probably increase during the lean season. According to UNICEF, 1.2 million children under 5 years will suffer from acute malnutrition in the LCB area over 2017 and more than 540.000 will need immediate treatment.

Nutrition Outlook

6 noix

The nutritional situation during this post-harvest period remains worrying to critical in the Lake Chad basin, the

north of Mali and in the three  northeastern Nigeria States due to the deterioration of living conditions and persistent civil insecurity.

In refugee and IDP areas, as well as host communities’ areas, the situation is much more alarming with prevalence above the emergency threshold. The nutritional situation could deteriorate during the lean season in most of the Sahel countries.

According to UNICEF, 8.6 million children will suffer from acute malnutrition in the Sahel in 2017 and 3.3 million from its most severe form. Currently, strong risks are seen in Senegal, Mauritania, Mali, Niger, Nigeria, Cameroon and Chad.

Recommandations for Action

  • Fournir des aliments pour animaux immédiats aux éleveurs dans les zones de Tahoua, Maradi, Zinder au Niger.
  • De près le cours de la fluctuation au Niger, au Mali et au Tchad et se préparer à réagir rapidement en cas de besoin.
  • Suivre le développement du pipeline RUTF par rapport à l’admission au Niger et au Mali, où le nombre prévisionnel de cas d’enfants SAM assemble assez sous-estimé.
  • Continuer à promouvoir les fonds pour répondre aux besoins énoncés au Nigeria du Nord-Est sur la base des engagements de la conférence d’Oslo.
Biomasse

West Africa Rain Forecasts and Biomass Vulnerability: April-July

01/05/201712/11/2023

ACMAD/MESA’s 2017 forecasts for the April-July period are available. As far as West Africa is concerned these are initial forecasts and cover mostly the coastal countries/ Gulf of Guinea. Significant weather incidents for the Sahelian belt are not yet detected, but more data will be available soon. This map will be updated with new data with the release of more forecasts from ACMAD. This dataset shows ACMAD/MESA’s currently available forecasts, with ACF’s Biomass Vulnerability Index. The Vulnerability Index is a recursive indicator of biomass anomalies and identifies areas with multiple years of negative biomass production. These zones, marked as “very vulnerable” or “vulnerable”, pose particular dangers for pastoral communities, whose herds can be structurally damaged by consecutive years of poor vegetation/ forage production. To note:

  • An unfavourable precipitation during the April-July period is predicted for most Burkina Faso, North-Western Nigeria, Northern Ghana and the southern region of Niger. This will likely have negative impacts on agricultural production. A late start of rains for Burkina Faso could indicate a prolonged transhumance of pastoral herds.
  • Unfavorable rains during this period predicted for much of Senegal, Guinea, Liberia and Sierra Leone
  • If this trend continues during the rest of the rainy season, highly probable that these areas will have poor agricultural yields
    • Pastoral impacts could include: less availability of agricultural residue and pasture for 2018 dry season, prolonged transhumance.
      West Africa Rain Forecasts and Biomass Vulnerability: April-July

Full resolution map available here

Publications

Surface Water Accessibility Anomaly Map: February 2017

03/03/201725/10/2017

Anomalie_FEV_2017

Publications

Surface water accessibility anomaly – January 1, 2017

05/01/201725/10/2017

201701_anomaly_access

Carte d’anomalie d’accesibilité des eaux de surface en Afrique de l’Ouest au 1 Janvier 2017, calculée contre la moyenne de 1998-2017.

Analyse effectué avec le produit Small Water Bodies (SWB)  du satellite PROBA-V de Copernicus Global Land Service. Le produit SWB est traité par l’institut Flamand de la Technologie (VITO).

Publications

Biomass Analysis Senegal 2016

28/10/201628/11/2016

Comment lire ces cartes?

Telecharger Rapport
Telecharger Rapport
Production Historique (En tonnes) Production Historique (En tonnes)

 

Biomass Analysis Senegal 2016
Production de Biomasse 2016
Biomass Analysis Senegal 2016
Indice de Vulnerabilité 2016
Biomass Analysis Senegal 2016
Anomalie de la Biomasse 2016
Publications

Chad Biomass Analysis 2016

28/10/201625/10/2017
128px-document-pdf-svg_
Rapport D’Analyse
excel_thumb
Excel- Données Historiques de Biomasse (en tonnes)

 

 

 

 

 

Comment lire ces cartes? 

Chad Biomass Analysis 2016
Production de Biomasse 2016
Chad Biomass Analysis 2016
Indice de Vulnerabilité 2016
Chad Biomass Analysis 2016
Anomalie de la Production de la Biomasse 2016
Biomasse

Biomass Analysis Mauritania 2016

27/10/201625/10/2017

128px-document-pdf-svg_

Rapport d’analyse

excel_thumb

Excel- Données Historique (en Tonnes de Biomasse)

 

Comment lire ces cartes? 

Biomass Analysis Mauritania 2016
Indice de Vulnerabilité 2016
Biomass Analysis Mauritania 2016
Anomalie (Biomasse) 2016
Biomass Analysis Mauritania 2016
Production de la Biomasse 2016

 

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Conditions for pastoral follow-up

Access to the pastoral surveillance dashboard

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