IAEA使用LGR WVIA进行水汽同位素连续测量研究

IAEA同位素水文研究组的2011年第29期实事通讯刊载文章，介绍使用LGR公司的水汽同位素分析仪（WVIA）和水汽同位素校准源（WVISS）进行水汽同位素的连续测量。

Data Sets for Simultaneous Water Vapour and Rain Sampling Used in Modelling Efforts
By N.Kurita(IAEA)
The Isotope Hydrology Section has been testing a newly available automated precipitation sampler to obtain short term isotopic data on precipitation and a laser spectroscopy analyzer for water vapour isotope analysis.

Introduction

The reliability of model based future climate scenarios described in the Intergovernmental Panel on Climate Change (IPCC) assessment report depends on how these models can simulate the observed present day climate – both globally and at the regional level. It is well known that the climate models fail to simulate the observed precipitation field in the tropics and there are wide variations between models for the simulated global field. Recently, to reduce these model uncertainties, a high resolution climate model was developed and a more realistic scheme incorporated into the model. These developments may contribute to improving the reproducibility of present day climate, though an accurate simulation of the present day climate field does not guarantee a precise future prediction. One of the most important things for future prediction is whether the current climate model can reproduce key climate processes both in the present and the past.

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