A fundamental study on a CO_2-dimate-vegitation system

CO_2-二甲酸盐植被系统的基础研究

基本信息

批准号：
10308024
负责人：
KIDA Hideji
金额：
$ 18.43万
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：
1998
资助国家：
日本
起止时间：
1998 至 2000
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10308024/
关键词：
CO_2 carbon dioxide climate change climate model Terrestrial Bio. Model global warming

项目摘要

Along the main purpose of the research project, a numerical simulation was conducted on the transports, sinks and sources of CO2 using a global transport model developed in this research project. A regional model was also applied to a high-resolution smulation of transport in order to study the regional CO2 budget. This research has showed that the model will be usable to join our vegitation model with the climate model.Some numerical potential questions on use of a regional-area climate model was almost not serious in long-term integrations but practically away from problem, so the regional high-resolution climate model run very well. In the near future we need to increase the resolution of the numerical model for the more acurate simulations than the present.We have begun a study on a combined climate-vegitation simulation. The first stage was grossly well done with given parameters of climate factors such as temperature, presipitation, humidity, soil wetness, and CO2 mixing ration. An interesting result is that the modeled vegitation over huge desert areas completely disappeared. This must be, however, checked by many respects to confirm whether it is real or not. It have been suggested that the vegitation models are very sensitive to conditions of meteorological and climatological factors.The present fundamental research project was original in the worldwide and the first stage to investigate a combined system of CO2-climate-vegitation from interdisciplinary approaces. We have clearly showed the potentiality of modeling the combained system.

根据研究项目的主要目的，使用该研究项目中开发的全球运输模型在CO2的运输，水槽和源头上进行了数值模拟。为了研究区域二氧化碳预算，区域模型还应用于运输的高分辨率模拟。这项研究表明，该模型可用于将我们的蔬菜模型与气候模型一起加入我们的蔬菜模型。在长期整合中，使用区域区域气候模型的一些数值潜在问题几乎并不严重，但实际上却远离了问题，因此区域高分辨率气候模型运行良好。在不久的将来，我们需要增加比目前更具过度模拟的数值模型的分辨率。我们已经开始对合并的气候变化模拟进行研究。第一阶段非常出色地完成了气候因素的给定参数，例如温度，预设，湿度，土壤湿度和二氧化碳混合量。一个有趣的结果是，在巨大的沙漠地区建模的蔬菜完全消失了。但是，这必须从许多方面进行检查，以确认它是否是真实的。已经提出，蔬菜模型对气象和气候因素的条件非常敏感。目前的基本研究项目在全球范围内是原始的，也是研究跨学科批准的二氧化碳气候 - 气候 - 气候合并系统的第一阶段。我们清楚地表明了对梳子系统进行建模的潜力。