Climate change is already posing challenges to agricultural productivity worldwide, and the sector is likely to encounter severe water woes as this intensifies. However, water management, which is crucial for sustainable agriculture, improved rural livelihoods and food security, has not yet been sufficiently harnessed and employed across Sub-Saharan Africa.

Consequently, immense opportunities for growth and economic

advancement are being missed. Proper irrigation is vital for sustained agricultural growth, according to the FAO. The UN agency says efficient irrigation practices could result in increased crop yields of up to 400%. Yet, farmers across Sub-Saharan Africa, who are most dependent on rainfall, are hamstrung by a landscape with the fewest rainfall monitoring stations in the world, which are also complicated to read. This challenge is compounded by an unreliable climate information dissemination mechanism.

But, as with all challenges in the sector, new technologies are emerging that could provide better information for planning. Rainwatch, a National Oceanic and Atmospheric Administration (NOAA) funded climate information system, seems set to help West African farmers, in particular, to overcome their water management challenges.

NOAA says Rainwatch uses GIS to “monitor monsoon rainfall and tracks season rainfall attributes”. It automatically streamlines rainfall data management, processing and visualization. The user-firendly tool has interactive faces, symbols and self-explanatory names. This simplicity eliminates the need for external assistance, including satellite information, to make use of the tool.

The successful 2009 piloting of the project, coupled with the abundant returns to farmers in Niger last year, a country with chronic water management issues, shows that there is great potential behind scaling-up this project. A key challenge will be getting farmers to use the technology, but the demonstrable benefits will prove to be a strong selling point.

The NOAA funded project received support from the African Center of Meteorological Applications for Development and CIMMS.