Hydrological Tracking Model for Amazon Surface Waters
Hydrological Tracking Model for Amazon Surface Waters
复制标题
亚马逊地表水域水文跟踪模型
DOI：
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发表时间：
2020
影响因子：
5.4
通讯作者：
W. Collischonn
中科院分区：
文献类型：
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作者：
M. Sorribas;R. Paiva;A. Fleischmann;W. Collischonn
本研究提出了一种替代模式，水文跟踪地表水沃茨，旨在调查多年的存储和运动的水在大型河流流域。我们将该模型与来自大规模水文水动力模型的背景解相结合，研究亚马逊河流域（600万平方公里）沃茨的命运，考虑以下因素：（i）地表水的行程时间，（ii）大面积可覆盖区域（流域的17%）的作用，以及（iii）水成分和岩性来源之间的关系。通过数值实验，我们研究了亚马逊河流域（相对于出口）的地表水流动时间的空间分布以及洪泛区在季节性蓄水中的作用。我们估计，地表水的行程时间可能少于90天（中位数为45天），尽管约20%的流动水通过大型洪泛区。我们的模拟试验表明，河流和洪泛区之间的全流域月水净平衡可达到105 m3/s的量级;在年度洪水期间与洪泛区交换的水量可代表沃茨季节流域流量的很大一部分（高达40%）。最后，我们利用跟踪的方法来研究水文组成的基础上，母河岩性量化的主要支流的作用。在开发全球水文数据库的同时，还需要新的建模方法来推动大型流域地表沃茨更新和行程时间讨论的进展。
This study presents an alternative model for hydrological tracking of surface waters designed to investigate multiyear storage and movement of water in large river basins. We coupled this model with a background solution from a large‐scale hydrological‐hydrodynamic model to study the fate of waters in the Amazon River basin (6 million km2) considering the following: (i) the surface water travel times, (ii) the role of large floodable areas (17% of the basin), and (iii) the relations between water composition and lithological sources. Through numerical experiments, we investigated the spatial distribution of in‐stream surface water travel time for the Amazon River Basin (relative to the outlet) and the role of floodplains in seasonal water storage. We estimate that surface water travel time is likely to be less than 90 days (median of 45 days), although about 20% of the flowing water passes through large floodplains. Our modeling exercises indicate that whole‐basin monthly water net balance between river and floodplain can reach up to magnitudes of 105 m3/s; the water exchanged with floodplains during the annual floods can represent a large portion (up to 40%) of the basin discharge during low waters season. Finally, we took advantage of the tracking approach to study the hydrograph composition based on parent river lithology quantifying the role of major tributaries. Parallel to the development of global hydrology databases, new modeling approaches are also required to push advances in the discussion of renewal and travel times of surface waters in large river basins.
具有多个相互作用路径的流域规模的流量和停留时间的集成建模
影响因子：
5.4
作者：
Davies J
通讯作者：
Davies J