同位体トレーサーと数値モデルを併用した流域滞留時間推定手法の開発とその検証

使用同位素示踪剂和数值模型的盆地停留时间估计方法的开发和验证

• 批准号: 13J03813
• 负责人: 馬 文超
• 金额: $ 1.32万
• 依托单位: University of Tsukuba
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2013
• 资助国家: 日本
• 起止时间: 2013-04-01 至 2015-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13J03813/
• 关键词: transit time; isotope tracer; tank model; catchment hydrology; Fuji basin; Transit time; Tank model; Isotope tracer; Catchment hydrology; Fuji river

An approach to estimate the time-variant MTT and TTD using a five-layer tank model with isotopic tracers was proposed and tested within Fuji River catchment, central Japan. The tank model used for the transit time estimation was calibrated and then validated by comparing observed and simulated results of not only water balance but also isotope balance. Predominant factor controlling temporal variability of MTT is precipitation amount. Occurrence of precipitation alters TTD, with increases in younger components, and shortens the MTT. Long-term MTT values correlated with mean slope, coverage of Mesozoic sand stone/shale, coverage of forest, evaporation, interception and storage for each catchment. All of these are related to the amount of groundwater storage, which is smaller in mountainous areas and greater in plain areas.

提出了一种方法来估计时变MTT和TTD使用五层坦克模型与同位素示踪剂，并在富士河流域，日本中部进行了测试。通过对比水平衡和同位素平衡的观测结果和模拟结果，对用于渡越时间估算的水箱模型进行了标定和验证。控制MTT时间变异性的主要因素是沉淀量。沉淀的发生改变了TTD，增加了年轻的成分，并缩短了MTT。长期MTT值与平均坡度，覆盖中生代砂岩/页岩，森林覆盖，蒸发，拦截和存储每个集水区。所有这些都与地下水储量有关，山区地下水储量较小，平原地区地下水储量较大。

项目成果

Comparative study on Mean Transit Time (MTT) & Transit Time Distri bution (TTD) of Funayamabashi-catchment(FNC) and Kikkobashi-catchment (KKC)

平均通过时间（MTT）的比较研究

• 发表时间: 2013
• 作者: Tomo-hiro Abe;Yukihiro Fujimoto;Tatsuo Kobayashi;Takashi Miura;Kenji Nishiwaki;Makoto Sakamoto;Yoshiyuki Tatsuta;Wenchao Ma and Tsutomu Yamanaka
• 通讯作者: Wenchao Ma and Tsutomu Yamanaka

Investigation of mean transit time and transit time distribution temporal variability by a tracer-aided tank model in Fuji catchment

利用示踪剂辅助水池模型研究富士流域的平均渡越时间和渡越时间分布时间变化

• 发表时间: 2013
• 作者: Shunjiro Nagata;Kenta Kokado;Kazuki Sada;Wenchao Ma and Tsutomu Yamanaka
• 通讯作者: Wenchao Ma and Tsutomu Yamanaka

Temporal variability in mean transit time and transit time distributions assessed by a tracer-aided tank model of a meso-scale catchment

通过中尺度流域的示踪剂辅助水箱模型评估平均通过时间和通过时间分布的时间变化

• DOI: 10.3178/hrl.7.104
• 发表时间: 2013
• 期刊: Hydrological Research Letters
• 影响因子: 1.1
• 作者: Yu Guan;Manabu Yamamoto;Toshiyuki Kitazawa;Saroj R. Tripathi;Kei Takeya & Kodo Kawase;Wenchao Ma and Tsutomu Yamanaka
• 通讯作者: Wenchao Ma and Tsutomu Yamanaka

Study of mean transit time (MTT) predictions in ungauged catchment of the Komaba basin

Komaba 盆地未测量流域的平均通过时间 (MTT) 预测研究

• 发表时间: 2014
• 作者: Wenchao MA;Tsutomu YAMANAKA
• 通讯作者: Tsutomu YAMANAKA

Comparison of Mean Transit Time and Transit Time Distribution Considering Temporal Variability and Spatial Controlling Factors Among Five Meso-scale Catchments

考虑时间变异和空间控制因素的五个中尺度流域的平均渡越时间和渡越时间分布比较

• 发表时间: 2014
• 作者: Wenchao MA;Tsutomu YAMANAKA
• 通讯作者: Tsutomu YAMANAKA