A Model for Weather Cycles Based on Daily Rainfall Occurrence

Galloy, E.; Bretón, André; Martin, Serge

doi:10.1007/978-3-642-46475-1_22

Cited by 12 publications

(6 citation statements)

References 3 publications

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“…Use of thresholds for low, moderate and severe levels of disease can allow quantitative characterization of the epidemic disease cycle, and may contribute to disease control strategies. Prediction of dry and wet periods in the field allows adjustment of fungicide application (Gallois et al ., 1983).…”

Section: Discussionmentioning

confidence: 99%

Effects of temperature and moisture on disease and fruit body development of Mycosphaerella pinodes on pea (Pisum sativum)

Roger¹,

Tivoli²,

Huber³

1999

Plant Pathology

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The effects of temperature (5-30ЊC) and the duration of moisture on the development of ascochyta blight (Mycosphaerella pinodes) on pea seedlings, grown under controlled conditions, were investigated. The optimum temperature for monocyclic processes was 20ЊC. At this temperature, pycnidiospores germinated after 2 h, appressoria formed after 6 h and the germ-tube penetrated the leaf cuticle after 8 h. Disease symptoms were evident after 1 day of incubation and the first pycnidia formed after 3 days. Longer wetting periods were required for disease development and pycnidial formation at non-optimal temperatures. Disease severity and the number of pycnidia formed on leaves increased with temperature from 5 to 20ЊC, then decreased between 20 and 30ЊC. Polynomial equations were fitted to predict the stages of infection, incubation, latency and disease development as functions of temperature and duration of moisture. These equations allow comparisons of pathogen spread with plant development and could be incorporated into disease development models used for crop management programmes.

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Section: Discussionmentioning

confidence: 99%

Effects of temperature and moisture on disease and fruit body development of Mycosphaerella pinodes on pea (Pisum sativum)

Roger¹,

Tivoli²,

Huber³

1999

Plant Pathology

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“…The first use of Polya's urns to represent persistence in a succession of qualitative data has been done since 25 years by climatologists for the sequence of dry and wet days (Galloy et al, 1983) and a lot of fundamental (Inoue and Aki, 2001) or more applied (Ivchenko, 1998) papers have been after published for studying the theoretical properties of the corresponding random process, or for estimating its parameters or its thermodynamical variables (like the entropy of its stationary distribution).…”

Section: Persistence Modellingmentioning

confidence: 99%

Data Fusion for Analysis of Persistence in Pervasive Actimetry of Elderly People at Home, and the Notion of Biological Age

Demongeot

Noury

Vuillerme

2008

2008 International Conference on Complex, Intelligent and Software Intensive Systems

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If we watch elderly people at home for health or security purposes, we need a reliable pervasive information from a domestic network of localizing sensors allowing to follow the different locations at which the dependent persons can be detected. The data recorded can be treated as the sequence of color coded numbers of balls (symbolizing rooms) taken in a Polya's urn, in which the persistence of the presence in a room is taken into account by adding a certain number of balls of the same color as the ball just drawn. We discuss the pertinency of such a procedure to early detect sudden or chronic changes in the parameters values of the random process made of the succession of ball numbers and we use it to trigger alarms, whose level depends on the real biological age of the elderly people watched at home.

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“…Nevertheless, Galloy et al (1981) showed that weather cycles corresponding to the succession of dry or wet days, during a given period in a year at a given meteorological station, are modelled using a shifted negative binomial (SNB) distribution for the different lengths of spells. This distribution, P SNB , is given by Equation (6):…”

Section: Modellization Of the Hourly Clearness Index Persistencementioning

confidence: 99%

Stochastic study of hourly total solar radiation in Corsica using a Markov model

et al. 2000

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A Model for Weather Cycles Based on Daily Rainfall Occurrence

Cited by 12 publications

References 3 publications

Effects of temperature and moisture on disease and fruit body development of Mycosphaerella pinodes on pea (Pisum sativum)

Effects of temperature and moisture on disease and fruit body development of Mycosphaerella pinodes on pea (Pisum sativum)

Data Fusion for Analysis of Persistence in Pervasive Actimetry of Elderly People at Home, and the Notion of Biological Age

Stochastic study of hourly total solar radiation in Corsica using a Markov model

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