首页 >  2000, Vol. 4, Issue (s1) : 121-128

摘要

全文摘要次数: 2407 全文下载次数: 15
引用本文:

DOI:

10.11834/jrs.2000S120

收稿日期:

1999-12-15

修改日期:

2000-08-10

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用于地表能量交换的动态地表特征模式
中国科学院遥感应用研究所,北京100101
摘要:

对于全球性气候变化的研究,应用现有的气候预测模式,很难解释、预测其生成、发展、演变规律及其内部机制。研究气候变化的手段主要是通过气候数值模拟。到目前为止,气候数值预测模式已经有几十种之多,但都存在着意义上的不确定性。问题主要在于模型运行方向上的非客观性;静态的初始边界场与动态的地一气过程之间的矛盾。随着模型的运行超过某一时间尺度后,这种初始场已不能影响模型的运行方向,由于现有气候模式的局限性,因而必须借助新的技术手段建立新的模型。该文发展了一个用于地表能量交换研究的动态地表特征模式,包括地表特征数据的建立,地表反照率、温度和粗糙度的反演和计算。

Model of Dynamic Land Surface Feature for Energy Exchange of Land Surface
Abstract:

It is difficult to explain and predict the law of formation, development, evolution and internal mechanism ofclimate change using currently available climate prediction models for studing on climate change. The main means ofstuding on climate change are climate digital simulations, and many methods were developed for them, however thereare uncertainty. The problem is mainly unobjectivity for operational direction of the models; contradictory of staticinitial field with dynamic process between land and atmosphere. Therefore, new methods must be found out with aidsof new technology. In this paper a model of dynamic land surface feature was developed based on remote sensing andGIS, including database of dynamic feature of land surface, inversions and calculations of albedo, temperature androughness of land surface.

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