Global Learning And Evidence Exchange (GLEE) Climate Smart Agriculture: Africa
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1 Tamuka Magadzire, FEWS NET Scientist, Southern Africa Gideon Galu, FEWS NET Scientist, East Africa Global Learning And Evidence Exchange (GLEE) Climate Smart Agriculture: Africa March 13-16, 2016 Lusaka, Zambia 1
2 Outline El Niño and its typical impacts in eastern and southern Africa Impacts of the 2015/16 El Niño Current and projected El Niño conditions 2
3 What is El Niño? natural phenomenon every 2 to 7 years: Warm sea surface temperatures (SST) in equatorial Pacific Ocean Consistent changes in pressure, wind and rainfall patterns Causes major global weather and climate fluctuations No two El Niño events are the same. Part of the ENSO: (1) El Niño, (2) La Niña and (3) neutral phases
4 General El Niño Climate Response 4
5 Average rainfall for El Niño events since 1981, expressed as percent of 35-year average DJFM MAM JJAS OND Based on the CHIRPS dataset
6 Outline El Niño and its typical impacts in eastern and southern Africa Impacts of the 2015/16 El Niño Current and projected El Niño conditions 6
7 2015/16 El Niño impacts Dec 2015 to Feb 2016 Land Surface Temperature anomalies Source: UCSB/FEWS NET Severe drought and high temperatures in southern Africa 7
8 2015/16 El Niño impacts Worst drought in at over 35 years in several countries; 2 nd consecutive drought season Extreme above-normal temperatures Poor pasture and water for livestock: Tens of thousands of drought-related cattle deaths Large decrease in area planted and widespread crop failure: large reduction in regional production expected Water availability reduced, rationing in some countries Source: UCSB/FEWS NET Drought-related disasters declared in 4 countries Flooding in the north-east: Tanzania, north Malawi 8
9 2015/16 El Niño impacts Worst drought in 50-years in Ethiopia, > 10M requiring food assistance. Poor harvest in Eastern Sudan for main June Sept cropping season. Good Oct Dec rains in most areas with expected above average harvests. Floods in parts of Somalia, Kenya, Tanzania, Burundi, and increase in water-borne diseases, malaria, cholera.. Increased post-harvest losses (20-30%) due to continued heavy rains in western Kenya, central and eastern Uganda. Standardized Precipitation Index for March December
10 Impacts and Responses Johannesburg, Feb 2016: SADC Consultative Meeting on Preparedness & Response to Impact of the 2015/16 El Niño on Agriculture & Food & Nutrition Security in Southern Africa >150 attendees from national, regional, international & UN (incl FFP) Adverse effects of El Niño were noted Production Food Prices Hunger Malnutrition Impact on water, energy, education and health Short and medium/long term measures recommended, incl Medium Term: MS & partners to promote and scale-up appropriate technologies to adapt and mitigate against climate variability and change. 10
11 Outline El Niño and its typical impacts in eastern and southern Africa Impacts of the 2015/16 El Niño Current and projected El Niño conditions 11
12 Current ENSO conditions Source: NOAA CPC/ IRI This is one of the strongest El Niño events in recorded history * Limited correlation between strength & impacts in Southern Africa 12
13 Recent Sea Surface Temperatures (SST) Above average SST in the eastern eq. Pacific ocean (ENSO area) and Indian Ocean SST anomalies decreased across eastern eq. Pacific ocean Increased in Indian Ocean Source: NOAA CPC
14 ENSO Forecast Potential transition to neutral conditions by MJJ period Possible change to La Niña conditions by ASO Source: NOAA CPC/ IRI 14
15 Average rainfall for La Niña events since 1981, expressed as percent of 35-year average DJFM MAM JJAS OND Based on the CHIRPS dataset
16 Projected ENSO conditions, & potential outcomes based on historical observations March-May likely to be under El Niño conditions Typically rainfall: east Ethiopia, west Ethiopia, coastal Kenya July-September is likely to be under neutral conditions, according to forecast. Oct-Dec may see La Niña or neutral conditions Typically for La Nina, rainfall: east Africa, southern Africa For neutral conditions, less predictability NOTE: Significant variability in impacts for different La Niña events, as well as for different El Niño events: No-regrets approach 16
17 Thank you
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