A Study of Modeling of Regional Environment Coupling with Climate, Terrestrial Vegetation, and Green house Gases.

气候、陆地植被和温室气体耦合的区域环境建模研究。

基本信息

批准号：
14208062
负责人：
KIDA Hideji
金额：
$ 21.38万
依托单位：
Kyoto University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
2002
资助国家：
日本
起止时间：
2002 至 2004
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14208062/
关键词：
Modeling of climate Local climate model carbon dioxide CO2 Green house gases Vegetation model Global change Climate-vegetation interaction CO_2 気候植生相互作用領域気候モデリング気候モデル

项目摘要

The main purpose of this study is to develop a model capable of simulations and experiments needed for investigations of interactions between local climates, terrestrial ecosystem, and green house gases regarding the global warming. We conducted some experiments to especially focus some effects of vegetation covering a region to other areas. To simulate the geographical distributions and global budget of carbon-dioxide, we introduced the Sim-CYCLE model developed by Oikawa and Ito into a transport model developed by Iguchi and Kida. The results from our experiments were compared with some results of the gases observed by Nakazawa, Aoki and others.Our results from simulations for CO2 seasonal variations have indicated that the gross behavior of CO2 was coincided with the well-known seasonal variations in various regions, and however done that the detail behaviors were not so well simulated in each local area. It has suggested that the timing of seasonal march of vegetation growth was so difficult in modeling. This problem should be overcome in the near future.Using our models, an experiment was performed to estimate the effect of tropical forests over the interested South-East area to global climate. This result has showed that the tropical circulation such as the Hadley Circulation was changed in activity owing to the changed conditions of grand over the tropical region. Such effect was also seen in the mid-latitude areas.Toward the future modeling, some perspective investigations were also done to make an insight into transport mechanism of Green house gases, by tracing air parcels from the starting region into the interested arriving regions. This analysis could suggest that the original regions of each CO2 observed in various positions, and we could apply the result to development of transport and ecosystem models.

本研究的主要目的是开发一个能够进行模拟和实验的模型，以调查当地气候、陆地生态系统和温室气体之间与全球变暖相关的相互作用。我们进行了一些实验，特别关注覆盖一个区域的植被对其他区域的一些影响。为了模拟二氧化碳的地理分布和全球预算，我们将 Oikawa 和 Ito 开发的 Sim-CYCLE 模型引入 Iguchi 和 Kida 开发的传输模型中。我们的实验结果与 Nakazawa、Aoki 等人观测到的一些气体结果进行了比较。我们对 CO2 季节变化的模拟结果表明，CO2 的总体行为与各个地区众所周知的季节变化相一致，然而，每个局部区域的细节行为并没有得到很好的模拟。这表明植被生长季节变化的时间在建模中非常困难。这个问题应该在不久的将来得到解决。利用我们的模型，进行了一项实验来估计感兴趣的东南地区热带森林对全球气候的影响。这一结果表明，由于热带地区大气条件的变化，哈德利环流等热带环流的活动发生了变化。这种效应也出现在中纬度地区。在未来的建模中，还进行了一些透视研究，通过追踪从起始区域到感兴趣的到达区域的空气团来深入了解温室气体的传输机制。该分析可以表明在不同位置观察到的每种二氧化碳的原始区域，我们可以将结果应用于运输和生态系统模型的开发。