Uncertainty in the global solar radiation data, its propagation in crop models and consequences for the spatial analysis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43210%2F05%3A00087243" target="_blank" >RIV/62156489:43210/05:00087243 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Uncertainty in the global solar radiation data, its propagation in crop models and consequences for the spatial analysis

Original language description

The results of the recently published studies suggest that the estimated RG values are loaded with an error, which might compromise the precision of the subsequent crop model applications. Such error would then translate in the analyses based on the cropmodels as e.g. crop yield forecasting or climate change impact studies. Therefore a detailed analysis of the error propagation was made using two crop models i.e. CERES-Barley and CERES-Wheat. Database of meteorological data originating from 8 stationsin Austria and Czech Republic was used in order to carry out the analysis. It has been found that even application of the method based on sunshine duration hours that yield the lowest bias in RGestimates significantly influences number of key crop modeloutputs. It has been also noted that in 5-6 seasons out 100 cases of deviation greater than +-10 % are to be expected whilst the chance of occurrence of even greater error (+-25 %) is not negligible. The precision of the yield estimates a

Czech name

Nejistoty ve vstupních hodnotách globální radiace a jejich propagace v růstových modelech

Czech description

Studie popisuje šíření chyb v hodnotách globální radiace v růstových modelech a provádí nepřímou validaci náhradních metod výpočtu RG.

Type

D - Article in proceedings

CEP classification

GC - Plant growing, crop rotation

OECD FORD branch

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Project

<a href="/en/project/GP521%2F03%2FD059" target="_blank" >GP521/03/D059: Application of the spatial analysis method for risk assessment and overview of adaptation strategies in spring barley production under changed climatic conditio</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2005

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Geophysical Research Abstracts

ISBN

1029-7006

ISSN

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e-ISSN

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Number of pages

1

Pages from-to

8740-8740

Publisher name

European Geosciences Union

Place of publication

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Event location

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Event date

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Type of event by nationality

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UT code for WoS article

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