five

Data for: The pace of global river meandering influenced by fluvial sediment supply

收藏
DataONE2024-03-07 更新2024-06-08 收录
下载链接:
https://search.dataone.org/view/sha256:ffc9cc554e663ffed5c287c5d4efc45671aeaebaf4399aabf778c799da155788
下载链接
链接失效反馈
官方服务:
资源简介:
Meandering rivers move gradually across the floodplains, and this river movement presents socioeconomic risks along river corridors and regulates terrestrial biogeochemical cycles. Experimental and field studies suggest that fluvial sediment supply can exert a primary control on lateral migration rates of rivers. However, we lack an understanding of the relative importance of environmental boundary conditions, such as floodplain vegetation and sediment supply, in setting the pace of river meandering across different environmental settings. Here, we combine the analysis of satellite imagery and global-in-scale sediment and water discharge models to evaluate the controls on lateral migration rates of 139 meandering rivers that span a wide range in size, climate, and bank vegetation. We show that migration rates normalized by the channel width monotonically increase with the volumetric sediment flux normalized by the characteristic size of the river. This relation is consistent across rive..., This dataset includes all underlying data used for the associated manuscript. We include all surface water mask files (.tif), derived channel centerline files (.csv, .pkl), bar-averaged migration files, and aggregated tabular data. To work with any of the derived data, we recommend using a Python-based workflow. The dataset includes three sections: 1) Dammed_Rivers This includes underlying data for the upstream-to-downstream comparisons of river mobility across river dams. For each included river dam, we provide files that show the study area, binary geotiffs of channel water, generated centerlines, all migration data, and samples WBMsed model sediment flux and water discharge information. There are data for 3 rivers (Flint, Iowa, and Red) included in this section. 2) Single_Rivers This includes all underlying data for the individual river analyses included in our data compilation. We include the study location, binary Geotiffs of channel water, centerlines, migration data, and WBMsed m..., , # Data for \"The Pace of Global River Meandering Set by Fluvial Sediment Supply\" --- This dataset includes all underlying data used in the manuscript. This includes surface water mask files (.tif), derived channel centerline files (.csv, .pkl), bar-averaged migration, and aggregated tabular data. To work with any of the derived data, we recommend using a Python-based workflow. ## Description of the data and file structure The contents of the dataset is organized into 3 directories: ### 1) Dammed\_Rivers: This includes the underlying data for the upstream-to-downstream comparisons of river mobility across dams. It includes files for the Flint, Iowa, and Red Rivers. Files are organized by: ├── Dammed_Rivers/   ├── FlintRiver/    ├── compare.py    ├── FlintRiver_WBMdata.csv    ├── gpkg_shapes/    ├── masks/     ├── FlintDownstream/      ├── bar_migration/      ├── centerline/      ├── centerline_csv/      ├── mask/     ├── FlintUpstream/    ├── WBM_columns.txt   ├── IowaRiver/    ├──...

曲流河(meandering rivers)沿漫滩(floodplains)缓慢迁徙,此类河流活动不仅沿河道带引发社会经济风险,同时调控陆地生物地球化学循环(terrestrial biogeochemical cycles)。已有实验与野外研究表明,河流沉积物供给对河道侧向迁移速率起主要控制作用。然而,目前学界尚未厘清诸如漫滩植被、沉积物供给等环境边界条件,在不同环境背景下决定曲流河演化速率的相对重要性。本研究结合卫星影像分析与全球尺度沉积物、水流量模型,对139条覆盖不同规模、气候与岸带植被的曲流河的侧向迁移速率控制因素开展评估。研究发现,以河道宽度归一化的迁移速率,随以河流特征尺度归一化的沉积物体积通量单调递增。该规律在[...](原文存在截断)。本数据集包含关联论文所用的全部基础数据,涵盖地表水掩膜文件(.tif)、派生河道中心线文件(.csv、.pkl)、沙洲平均迁移数据以及聚合表格数据。建议采用基于Python的工作流处理所有派生数据。数据集包含三个部分: 1. 拦河坝河段(Dammed_Rivers) 该部分包含跨拦河坝的河道上下游流动性对比研究的基础数据。针对每条纳入研究的拦河坝,我们提供研究区域文件、河道水体二进制GeoTIFF文件、生成的中心线文件、全部迁移数据以及WBMsed模型的沉积物通量与水流量信息。本部分包含3条河流的数据:弗林特河(Flint)、艾奥瓦河(Iowa)与雷德河(Red)。 2. 单条河流河段(Single_Rivers) 该部分包含本次数据汇编中所有单条河流分析的基础数据,涵盖研究点位、河道水体二进制GeoTIFF文件、中心线文件、迁移数据以及WBMsed模型[...](原文存在截断)。 # 题为《河流曲流演化速率由河流沉积物供给决定》的数据集说明 --- 本数据集包含论文所用的全部基础数据,涵盖地表水掩膜文件(.tif)、派生河道中心线文件(.csv、.pkl)、沙洲平均迁移数据以及聚合表格数据。建议采用基于Python的工作流处理所有派生数据。 ## 数据内容与文件结构 数据集内容按3个目录组织: ### 1) 拦河坝河段(Dammed_Rivers) 该部分包含跨拦河坝的河道上下游流动性对比研究的基础数据,涵盖弗林特河、艾奥瓦河与雷德河的相关数据。文件组织形式如下: Dammed_Rivers/ ├─ FlintRiver/ │ ├─ compare.py │ ├─ FlintRiver_WBMdata.csv │ ├─ gpkg_shapes/ │ ├─ masks/ │ │ ├─ FlintDownstream/ │ │ │ ├─ bar_migration/ │ │ │ ├─ centerline/ │ │ │ ├─ centerline_csv/ │ │ │ └─ mask/ │ │ └─ FlintUpstream/ │ └─ WBM_columns.txt └─ IowaRiver/ └─ ...
创建时间:
2025-07-28
二维码
社区交流群
二维码
科研交流群
商业服务