Utilization of GMS Data for Estimation of Ganges River Run-off

利用 GMS 数据估算恒河径流

• 批准号: 08555127
• 负责人: NISHIMURA Hitoshi
• 金额: $ 0.96万
• 依托单位: University of Tsukuba
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08555127/
• 关键词: satellite data analysis; cloud analysis; Ganges River basin; 流出解析

Hardware for GMS-WEFAX data acquisition and software for their fundamental processing were provided within the last fiscal year. Programs were further developed and implemented for statistical analyzes of cloud-surface temperature distribution obtained from IR image. For widescale hydrological studies associated with Ganges River basin, cloud coverage is properly represented by FC distribution, where FC is the rate of pixels indicating lower temperature than 215ﾟK in a small square frame of 1ﾟ latitude/longitude. This index was successfully introduced into trial analyzes on both short-term and long-term meteorology in the present region.Insufficiency in time resolution was pointed out in tracing May 1996 tornado which attacked Bangladesh. Notably steep FC gradient, however, was detected along the south-east edge of the tornado. Such a finding in large-scale meteorology is important for future tornado forecasting.Extensive analysis of FC distrbutions in 1996 monsoon season (May through september) revealed regular diurnal generation and decay of clouds over a wide area of Bangladesh and adjoining Ganges River and Bengal Bay. Variation in cloud coverage in comprehensively described by means of pseudo-vector expression. This technique will contribute to the macroscopic study of monsoon and associated precipitation.Existing data on regional topography, precipitation and river run-off were compiled, although they are sufficient neither in quality nor in quantity. The Disaster Prev.Res.Center of Kyoto Univ., however, has been paying appreciable efforts toward accumulation of ground truth data, and compilation of GMS data has also become an established routine work. These data will hopfully be correlated for forecasting of Ganges River run-off within several years.

GMS-Wefax数据和用于其基本处理的软件是一些ER开发的，并意味着与恒河图像相关的研究获得的云表面温度分布分析。 1゜纬度/经度的温度为215。在1996年5月的龙卷风中指出，在龙卷风的东南部发现了Bly陡峭的FC梯度。在云层和孟加拉湾的云范围内，云覆盖范围的变化。 GMS数据也已成为一项既定的常规工作。

项目成果

Md.A.K.Chowdhury H.Shi-igai: "Diurnal variation of convective clouds over Bangladesh during monsoon s-eason using GNS-IR data" Proc.of 7th Int.Conf.on.Computingin Civil and Building Eng.1765-1770 (1997)

Md.A.K.Chowdhury H.Shi-igai：“季风季节期间孟加拉国对流云的日变化，使用 GNS-IR 数据”Proc.of 7th Int.Conf.on.Computingin Civil and Building Eng.1765-1770 (1997)

Md.A.K.chowdhury H.Shi-igai: "Diurnal variation of convective clouds over Bangladesh during monosoon season using GMS-IR data" Proc.of 7th Int.Conf.on Computing in Civil and Building Eng.1765-1770 (1997)

Md.A.K.chowdhury H.Shi-igai：“季风季节孟加拉国对流云的日变化，使用 GMS-IR 数据”Proc.of 7th Int.Conf.onComputing in Civil and Building Eng.1765-1770 (1997)

Md.A.K.Chowdhury, H.Shi-igai: "Diurnal variation of convective clouds over Bangladesh during monsoon season using GMS-IR data" Proc.of 7th Int.Conf.On Computing in Civil and Building Eng. 1765-1770 (1997)

Md.A.K.Chowdhury、H.Shi-igai：“季风季节孟加拉国对流云的日变化，使用 GMS-IR 数据”Proc.of 7th Int.Conf.On 土木和建筑工程计算。

Md.A.K.Chowdhury H.Nishimura, H.S-hi-igai: "Development of software for the broader.application of WEFAX data" J.of Japan Soc.of Hydral.and Wat-er Resources. 18-3. 248-258 (1997)

Md.A.K.Chowdhury H.Nishimura、H.S-hi-igai：“开发用于更广泛应用 WEFAX 数据的软件”J.of Japan Soc.of Hydral.and Water Resources。

A・チョ-ドリ 西村仁嗣 椎貝博美: "Development of software for the broader application of WEFAX data" 水文・水資源学会誌. 10・2(印刷中). (1997)

A. Choudhury、Hitoshi Nishimura、Hiromi Shiigai：“开发用于更广泛应用 WEFAX 数据的软件”，日本水文水资源学会杂志 10/2（出版中）。