A modified global model for predicting the tritium distribution in precipitation, 1960-2005

A modified global model for predicting the tritium concentration in precipitation has been developed using the dataset of International Atomic Energy Agency/the World Meteorological Organization (IAEA/WMO) over the period from 1960 to 2005. The tritium concentration in precipitation and its history...

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Bibliographic Details
Published in:Hydrological processes 2011-07, Vol.25 (15), p.2379-2392
Main Authors: Zhang, Yanhong, Ye, Shujun, Wu, Jichun
Format: Article
Language:English
Subjects:
Estimates
factor analysis
Mathematical models
modified global model
Position (location)
Precipitation
Precipitation (meteorological)
Stations
Tritium
World Meteorological Organization
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Summary:A modified global model for predicting the tritium concentration in precipitation has been developed using the dataset of International Atomic Energy Agency/the World Meteorological Organization (IAEA/WMO) over the period from 1960 to 2005. The tritium concentration in precipitation and its history can be estimated at any location using the model. The modified global model of tritium in precipitation (MGMTP) here presented has higher accuracy than the global model of tritium in precipitation (GMTP) developed by Doney et al. (1992). The new model is not only more appropriate for a particular station but also applicable for the un‐normalized observations directly. Another advantage of MGMTP is that it can estimate a longer history (from 1960 to 2005) of tritium content in precipitation than GMTP (from 1960 to 1986). The seasonal cycle of tritium in precipitation has also been modelled in the form of a simple cosine function with five parameters. Copyright © 2011 John Wiley & Sons, Ltd.
ISSN:0885-6087
1099-1085
1099-1085
DOI:10.1002/hyp.8001