Melinda Firds Program Management Unit Assistant
World Agroforestry (ICRAF)
Jl. CIFOR, Situ Gede, Sindang Barang,
Bogor Barat - Indonesia 16115
Tel: +62 2511 8625415
Fax: +62 2511 8625416
Email: icrafseapub@cgiar.org
Rainfall simulator (RainyDay) and spatial rainfall (SpatRain)
Author
Meine van Noordwijk, Lisa Tanika, Desi Ariyadhi Suyamto, Rachmat Mulia, Betha Lusiana and Ai Farida
Editors
Meine van Noordwijk, Betha Lusiana, Beria Leimona, Sonya Dewi and Diah Wulandari
Year
2013
Book Title
Negotiation-support toolkit for learning landscapes
Publisher
World Agroforestry Centre (ICRAF) Southeast Asia Regional Program
City of Publication
Bogor, Indonesia
Pages
174-179
Call Number
BC0378-13
Abstract:
Rainfall Simulator (RainyDay) generates daily rainfall based on annual rainfall characteristics and an
assumption that rainfall patterns follow statistical distribution functions, such as Weibull and Gamma.
The model takes into account day-to-day variations in rainfall events as well as different patterns of
rainfall across time or seasons. The model operates in MS Excel.
Spatial Rainfall (SpatRain) is a statistical tool to generate event-level rainfall maps across a watershed
that represent the observed partial spatial correlation between daily rainfall at multiple locations. The
results can be used by hydrological models that assess the influence of rainfall at watershed level on
the scaling of river flow and its degree of buffering and flow persistence.
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