Provision Of Forecasts Research Articles

Application of real time S2S forecasts over Eastern Africa in the co-production of climate services

Application of real time S2S forecasts over Eastern Africa in the co-production of climate services

Comparative Study of the Gut Contents of Penaeus japonicus Bate 1888 (Decapoda: Penaeidae) In Semi-Intensive Culture and In Brackish Water Wild Environment

The trophic adaptability of a species may influence its dispersion potential and the ability to invade foreign territories. Understanding the factors that facilitate trophic adaptability may help the provision of forecasts about the potential dispersion of allocthonous species, even in a warmer and acidified world, according to the current trends of global changes. Various studies demonstrated the adaptability of Penaeus japonicus Bate to variable feeding regimes under natural conditions. To optimize artificial diets for the aquaculture of Penaeid shrimps, gut content data of specimens cultured in ponds were compared to contents from shrimps fed on natural macro benthic communities in a brackish-water lagoon. In addition, the feeding adaptability of this shrimp to scarcely diversified benthic associations was tested in aquaculture ponds. Our comparative analyses confirm that P. japonicus feeding pattern may be largely adapted to variations in the available benthic organisms, in different management conditions

Agrometeorologia operacional no estado do Paraná

O Estado do Paraná acumulou nas últimas décadas um grande volume de dados co­letados em diversas instituições. A implantação de redes oficiais de estações me­teorológicas pelo IAPAR, INMET e Instituto das Águas do Paraná possibilitou organizar registros históricos importantes para estudos de climatologia e zoneamento de risco climático. A implantação do SIMEPAR – Sistema Meteorológico do Paraná – representou um marco na disponibilização de previsões e informações meteoro­lógicas que possibilitaram orientar as atividades agrícolas com maior agilidade e precisão. Além disso, instituições do setor cooperativo como a Fundação ABC têm investido com grande competência na coleta e disseminação de informações agro­meteorológicas aos produtores. A partir desta base de dados e informações geradas tem sido possível disponibilizar produtos de grande interesse para a agricultura paranaense.

Continuous Disclosure in Australia: The Empirical Uncertainties

The continuous disclosure regime is said to be at the heart of the company disclosure framework in Australia because it provides equal and timely access to material company information. The primary continuous disclosure obligation applying to listed Australian companies is ASX Listing Rule 3.1. The article outlines an empirical study that examined compliance with Listing Rule 3.1 using Guidance Note 8 on disclosure of expected earnings as a benchmark. The study found compliance with the guidance was poor. The proportion of companies with significant earnings changes that provided an earnings forecast was low, and there were no statistically significant associations between the provision of forecasts and the absolute changes in year-on-year earnings. The article concludes that continuous disclosure is a vital part of the Australian company disclosure framework. However, the current obligations require strengthening and the inherent limitations of the regime need to be acknowledged.

Uspješnost prognoza vremena za cestovni promet

The paper deals with a review of efficiency of ultra short- term and short-term weather forecasts designed for motor traffic. On the pattern of local forecasts for the region of the City of Zagreb in the winter season of 1992/1993 the authors perform the assessment of accuracy of predicted precipitation in general, snow, snowfall and new snow layer of 5 cm and more, glaze, and minimum and maximum air temperature. The assessment of weather conditions has been completed by method of alternation while the assessment of air temperature has been completed by statistic methods congruent with physical scale values. General efficiency of prediction of all mentioned weather aspects has been satisfactory, despite the fact that forecasts are still being made by subjective methods. More successful have been the forecasts referring to the absence of a phenomenon important for motor traffic than those referring to its presence. This comes as a result of the subjective element in provision of forecasts. Forecasters have consciously over-emphasized the possibility of presence of some adverse weather condition in order to avoid joint responsibility for consequences at the time of its occurrence without being predicted or announced. Nevertheless, forecasts have proven to be useful for more efficient and more economic operations of The Winter Road Service in the metropolitan area of Zagreb.