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Estimation on regional intensity of economic activity in Asia : An application of noctural light image by DMSP/OLS

亚洲区域经济活动强度估计：DMSP/OLS 夜间光图像的应用

基本信息

批准号：
12650537
负责人：
ICHINOSE Toshiaki
金额：
$ 2.3万
依托单位：
National Institute for Environmental Studies
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2000
资助国家：
日本
起止时间：
2000 至 2001
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12650537/
关键词：
DMSP economic acitivity urbanization Asia remote sensing China

项目摘要

Nowadays many of the urban areas in Asian countries give more priority to economic development than to environmental issues, which leads to the serious environmental deterioration. Information showing developing stages of urban area are generally restricted to published statistics by governments. Especially in Asian developing countries the problem is severe because of the lack of data accumulation. Thus it is difficult to collect cross-sectional urban environmental indicators under a common criteria. Another problem is the credibility of those data; many of the existing data are said to be unreliable. The investigators proposed an alternative method ; it was a method to gather information through remote sensing, and processed it on the Geographic Information System in units of the administrative area.DMSP (Defensive Meteorological Satellite Program)/OLS (Operational Linescan System) Stable Light Image (SLI) is available to detect low levels of visible - near infrared (VNIR ; 0.4 - 1.1μm) radiance at night by- clouds illuminated by moonlight- lights from cities, towns and industrial sites- gas flares- ephemeral events such as fires- lightning illuminated cloudswith the resolution of 30 seconds.From the enormous archives, the investigators established temporal data sets in Asian region for 1992-3, 1996, 1998 and figured out impacts of- Asian economic crisis (1997)- stress in the marginal zone between India and Pakistan- temporal variability of fisheries in the Japan Sea (the Eastern Sea)through the analyses on these data sets.They also compared these data sets summed up in each province in China with some published statistics on socio-economic factors. Intensity of the nocturnal light showed high alterability for GDP and consumption of electricity (per km^2).The investigators concluded DMSP/OLS SLI was enough applicable to evaluate developing stages of urban area without any published statistics.

现在亚洲国家的许多城市把经济发展看得比环境问题更重要，这导致了环境的严重恶化。显示城市地区发展阶段的信息通常仅限于政府公布的统计数字。特别是在亚洲发展中国家，由于缺乏数据积累，这个问题很严重。因此，很难在一个共同的标准下收集横向的城市环境指标。另一个问题是这些数据的可信度；许多现有的数据据说是不可靠的。研究人员提出了另一种方法；它是一种通过遥感收集信息，并在地理信息系统上以行政区域为单位进行处理的方法。DMSP（防御性气象卫星计划）/OLS（操作直线扫描系统）稳定光图像（SLI）可用于检测夜间低水平的可见光-近红外（VNIR; 0.4 - 1.1μm）辐射，通过月光照射的云层，城市，城镇和工业场所的灯光，气体耀斑，短暂事件，如火灾-闪电照射的云层，分辨率为30秒。从大量的档案资料中，研究者建立了1992-3、1996、1998年亚洲地区的时间数据集，并通过对这些数据集的分析，得出了亚洲经济危机（1997年）的影响-印度和巴基斯坦边缘地带的压力-日本海（东海）渔业的时间变率。他们还将中国各省汇总的这些数据集与一些公布的社会经济因素统计数据进行了比较。夜间光照强度对GDP和电力消耗（每公里^2）表现出高度的可变性。在没有公布统计数据的情况下，研究人员认为DMSP/OLS SLI足以适用于城区发展阶段的评价。