𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Modelling daily precipitation features in the Volta Basin of West Africa

✍ Scribed by P. Laux; S. Wagner; A. Wagner; J. Jacobeit; A. Bárdossy; H. Kunstmann

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
994 KB
Volume
29
Category
Article
ISSN
0899-8418

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The combination of a conventional Markov chain model (zero and first order) and a gamma distribution model are found to be applicable to derive meaningful agricultural features from precipitation in the Volta Basin (West Africa). Since the analysis of the monthly or annual precipitation amount does not provide any adequate information on rainfall timing and sufficiency of crop water requirement, rainfall modelling was performed on a daily time scale for 29 rainfall stations. The modelled rainfall features follow distinct spatial patterns, which will be presented as maps of(1) rainfall occurrence probabilities and (2) recommendations of optimal planting dates. In addition, the effective drought index (EDI) working on daily time scales is calculated in order to assess drought properties of five different rainfall regions within the Volta Basin. Apart from the common way of separately modelling the duration and intensity due to their different distributions, a copula approach is chosen in this study to construct a bivariate drought distribution. Application of the measures derived to agricultural decision support will be discussed briefly. Copyright © 2009 Royal Meteorological Society

📜 SIMILAR VOLUMES

Climatology of the annual maximum daily
Climatology of the annual maximum daily precipitation in the La Plata Basin
✍ Gustavo Naumann; María Paula Llano; Walter Mario Vargas 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 632 KB

## Abstract Important features of extreme precipitation in the La Plata Basin are studied on daily, seasonal, and annual time scales, using information from 1861 to 2005 and a common period from 1959 to 1998. A relation between the daily precipitation annual maximum and different time scales is dev

Depositional history of a muddy sabkha c
Depositional history of a muddy sabkha complex in the Sokoto Basin of Nigeria, West Africa
✍ Mahmood Alam 📂 Article 📅 1986 🏛 John Wiley and Sons 🌐 English ⚖ 991 KB

Sedimentological and stratigraphical analysis of the Sokoto Basin ha> resulted in recognition of four lithostratigraphic units. They are Unit A-siltstone and fine-grained sandstone; Unit B-shale and marl; Unit C-limestone and calcareous shale; and Unit D-red sandstone. Unit A represents a wadi plain

Simulating the response of a closed-basi
Simulating the response of a closed-basin lake to recent climate changes in tropical West Africa (Lake Bosumtwi, Ghana)
✍ Timothy M. Shanahan; Jonathan T. Overpeck; W. E. Sharp; Christopher A. Scholz; J 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 967 KB

## Abstract Historical changes in the level of Lake Bosumtwi, Ghana, have been simulated using a catchment‐scale hydrological model in order to assess the importance of changes in climate and land use on lake water balance on a monthly basis for the period 1939–2004. Several commonly used models fo

Sea surface temperature patterns in the
Sea surface temperature patterns in the Gulf of Guinea: their implications for the spatio-temporal variability of precipitation in West Africa
✍ Theophilus O. Odekunle; A. O. Eludoyin 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 527 KB

## Abstract This study examined the sea surface temperature (SST) patterns in the Gulf of Guinea (GOG) and discussed their implications for the spatio‐temporal variability of precipitation in West Africa. The SST data spanning over 49 years (1950–1998) at 2° × 2° resolutions were sourced from the a