Nowcasting for Africa: advances, potential and value
Nowcasting for Africa: advances, potential and value
复制标题
非洲临近预报：进展、潜力和价值
作者：
A. Roberts;J. Fletcher;J. Groves;J. Marsham;D. Parker;A. Blyth;E. Adefisan;V. Ajayi;Ronald Barrette;E. Coning;C. Dione;Abdoulahat Diop;A. K. Foamouhoue;M. Gijben;P. Hill;K. Lawal;J. Mutemi;M. Padi;Temidayo I. Popoola;P. Rípodas;T. Stein;B. J. Woodhams
提高对整个非洲大陆高影响天气的预报的需求很大。这是因为强烈对流风暴频率高，往往会产生严重的洪水、强风和闪电，再加上人们、基础设施和企业对此类灾害的脆弱性。即使提前时间不到24 小时，非洲上空的数值天气预报技能仍然很低。因此，特别需要在事件发生时提供即时预测。然而，整个非洲仍然普遍缺乏即时预报服务，而且几乎没有使用自动即时预报系统或工具。这限制了国家气象部门发布警报的能力，因此有可能防止生命损失和重大经济损失。气象雷达的覆盖范围仍然非常有限，但地球静止卫星提供了经常出现的大而持久的风暴的高分辨率数据。因此，非洲有机会提高基于卫星的短时预报能力。作为全球挑战研究基金非洲SWIFT(天气信息和预报技术科学)项目的一部分，正在开展的工作正在开始改进非洲对流系统的近景预报，从而提高对极端天气及时发出警告的能力，从而带来广泛的好处。
There is a great demand to improve predictions of high‐impact weather across the African continent. This is because of the high frequency of intense convective storms that often produce severe flooding, strong winds and lightning, combined with the vulnerability of people, infrastructure and businesses to such hazards. The skill of numerical weather prediction over Africa is still low, even for lead times of less than 24 hours. Therefore, there is a particular need to deliver nowcasting of events as they occur. However, there remains a widespread lack of provision of nowcasting across Africa and virtually no use of automated nowcasting systems or tools. This limits the ability of national meteorological services to issue warnings and therefore potentially prevent the loss of life and significant financial losses. Coverage by meteorological radars is still very limited, but geostationary satellites provide regular high resolution data of the often large and long‐lived storms. As such, there is an opportunity to improve satellite‐based nowcasting capability in Africa. Work being undertaken as part of the Global Challenges Research Fund African SWIFT (Science for Weather Information and Forecasting Techniques) project is starting to improve the nowcasting of African convective systems and so the ability to provide timely warnings of extreme weather providing a wide range of benefits.
影响因子：
3.2
作者：
Woodhams, Beth J.;Birch, Cathryn E.;Boyd, Douglas F. A.
通讯作者：
Boyd, Douglas F. A.