A study on the analysis of climate change and hydrologic cycle in the Central and East Asia

中亚和东亚气候变化与水文循环分析研究

• 批准号: 16500652
• 负责人: NAKAYAMA Yasunori
• 金额: $ 2.05万
• 依托单位: Nihon University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16500652/
• 关键词: climate change; geographical features; water area change; Dzungar baisn; ALOS; PRISM; ADEOS-2; GLI; river flow volume; Asian dust; 気侯変動; 標高情報; 湖岸段丘抽出; 海岸線変化; 低気圧活動; 前線活動; 水収支; 流出量; メコン川; 水資源; 人工衛星データ; 時系列解析; 土地被覆変化; 水文データベース; 湖沼変動

This study aimed to investigate the detailed relationship among land cover change situation, distribution of microtopography, meteorological data, hydrological data, and climate change and hydrological dynamics in the Central and East Asia. As for the analysis of the wide range land cover condition, new satellite data sets based on ADEOSII/GLI and Terra/MODIS were firstly created through the development of an algorism for the data processing. Next, land cover change areas for the past about 40 years were detected by the comparative analysis of the existing satellite data sets with new ones. Then, the investigation of the remarkable change in the closed lake, the vegetation area and snow ice cover area in the catchments area was carried out.The change in the lake water areas, irrigation agricultural lands and snow ice cover areas in Dzungar Basin and Gobi desert of west China was investigated by analyzing data sets. The development of an algorithm and its application to detect the distribution of microtopography around closed lake based on the fluctuation for long period were carried out. The result showed the gentle drying tendency for long period, rapid drying in the late 1990 and the complicated change. It could be grasped that the phenomena was due to the climate change in wide range area and the artificial influence by water resources control.On the other hand, the analysis result of climate change in continental scale showed that the warming tendency in the Central Asia was remarkable, and its sign has appeared since the first half of twenty centuries. Furthermore, the decline of the runoff caused by the decrease in precipitation and the increase in the evapotranspiration was recognized by the investigation of the hydrological cycle after the 1980's in the middle latitude zone.

本研究旨在探讨中亚和东亚地区土地覆被变化状况、微地形分布、气象数据、水文数据与气候变化和水文动力学之间的详细关系。在大范围土地覆盖状况分析方面，首次建立了基于ADEOSII/GLI和Terra/MODIS的新的卫星数据集，开发了数据处理算法。其次，通过对现有卫星数据集与新数据集的比较分析，确定了过去约40年的土地覆盖变化区域。在此基础上，分析了流域内封湖面积、植被面积和冰雪覆盖面积的显著变化，并对准噶尔盆地和西部戈壁荒漠的湖泊水域面积、灌溉农田面积和冰雪覆盖面积的变化进行了分析。研究了一种基于长周期波动的封闭湖泊周边微地形分布检测算法及其应用。结果表明，在较长的时间内，干旱趋势较为平缓，1990年后期的干旱趋势较为迅速，变化较为复杂。从气候变化的大陆尺度分析结果可以看出，中亚地区的气候变暖趋势显著，其迹象在20世纪上半叶就已出现。80年代后中纬度地区的水文循环研究也认识到降水减少和蒸散增加导致径流量减少的现象。

项目成果

高分解能衛星データを適用した乾燥地域におけるDEMの作成

使用高分辨率卫星数据在干旱地区创建 DEM

• 发表时间: 2007
• 期刊: (社)計測自動制御学会第14回リモートセンシングフオーラム資料
• 作者: 古野義明;中山裕則;山口志野;杉村俊郎
• 通讯作者: 杉村俊郎

Response of the reginonal hydrological environment to global climate change

区域水文环境对全球气候变化的响应

• 发表时间: 2007
• 期刊: Journal of Japanese Association of Hydrological Sciences Vol.36 No.3
• 作者: Yasunori Nakayama;Yoshiaki Furuno;Shino Ogino;Kazuki Mori
• 通讯作者: Kazuki Mori

A production of ADEOSII/GLI 250m mosaic data through the correction of topographic distortion in the Central Asia

中亚地形畸变校正ADEOSII/GLI 250m镶嵌数据的制作

• 发表时间: 2007
• 期刊: Proceedings of The 42th Spring Conference of The Remote Sensing Society of Japan
• 作者: Yasunori Nakayama;Yoshiaki Furuno;Shino Ogino
• 通讯作者: Shino Ogino

Atmospheric conditions of the Northern Hemisphere in spring followed by unusual cool summers focusing on stratospheric ozone depletion and cold vortexes

北半球春季的大气条件，随后是异常凉爽的夏季，重点是平流层臭氧消耗和冷涡

• 发表时间: 2005
• 期刊: Jour. Agric. Meteorol. 60・5
• 作者: Shuji Yamakawa;Tomiya Ohyosh
• 通讯作者: Tomiya Ohyosh

CORONAデータによる高精度DEMデータ作成方法の検討

利用CORONA数据制作高精度DEM数据方法的思考

• 发表时间: 2005
• 期刊: (社)日本リモートセンシング学会第39回(平成17年度秋季)学術講演会論文集
• 作者: 山口志野;杉村俊郎;中山裕則;穆桂金
• 通讯作者: 穆桂金