全球河流分类（GloRiC）为HydroRIVERS数据库中的所有河段提供河流类型和子分类
全球河流分类(GloRiC)
全球河流分类（GloRiC）为HydroRIVERS数据库中的所有河段提供河流类型和子分类。GloRiC是利用HydroRIVERS的河网划分，结合HydroATLAS数据库的水文环境特征和辅助信息而开发的。
GloRiC的1.0版本提供了水文、生理气候和地貌的子分类，以及每个河段的综合河道类型，因此总共有127个河段类型。它还提供了一个k-means统计聚类，将河段分为30组。该数据集包括850万条河道，总长度为3590万公里。
你可以在这里找到整体技术文件，在这里找到GloRiC加拿大的技术信息
预处理
除了全球版本的GloRiC，还有一个加拿大的区域版本，即GloRiC-Canada，它遵循同样的分类原则，但有加拿大特有的调整。GloRiC-Canada将加拿大的所有河段分为23种类型。
免责声明：数据集的全部或部分描述是由作者或其作品提供的。
参考文献
Ouellet Dallaire, C., Lehner, B., Sayre, R., Thieme, M. (2019). A multidisciplinary framework to derive global river reach classifications at high spatial resolution. Environmental Research Letters, 14(2): 024003. https://doi.org/10.1088/1748-9326/aad8e9
Ouellet Dallaire, C., Lehner, B., Creed, I. (2020): Multidisciplinary classification of Canadian river reaches to support the sustainable management of freshwater systems. Canadian Journal of Fisheries and Aquatic Sciences, 77(2): 326–341. https://doi.org/10.1139/cjfas-2018-0284
代码：
var gloric = ee.FeatureCollection("projects/sat-io/open-datasets/GloRiC/GloRiC_v10");
var gloric_canada = ee.FeatureCollection("projects/sat-io/open-datasets/GloRiC/GloRiC_Canada_v10");
| Column | Description |
|---|---|
| Reach_ID | Unique identifier (ID) for every river reach Note: the first digit identifies the region/continent: 1: Africa; 2: Europe; 3: Siberia; 4: Asia; 5: Australia & Oceania; 6: South America; 7: North America; 8: American Arctic; 9: Greenland |
| Next_down | ID of next downstream river reach Note: the next downstream ID can be used to trace the river network by navigating from reach to reach. Values of 0 indicate reaches with no further downstream connection (pour points). |
| Length_km | Length of individual river reach [km] |
| Log_Q_avg | Log-10 of long-term average discharge [m3 /sec] |
| Log_Q_var | Log-10 of flow regime variability |
| Class_hydr | Classes of hydrologic sub-classification (15 classes) |
| Temp_min | Long-term average of the minimum air temperature of the coldest month [degrees Celsius] |
| CMI_indx | Climate Moisture Index |
| Log_elev | Log-10 of average elevation of the reach [meters a.s.l.] |
| Class_phys | Classes of physio-climatic sub-classification (24 classes) |
| Lake_wet | Lake or wetland influence [binary: 0 = no; 1 = yes] |
| Stream_pow | Total stream power [kW/m2 ] |
| Class_geom | Classes of geomorphic sub-classification (127 classes) |
| Reach_type | Combined river reach type (4 classes) |
| Kmeans_30 | Classes of k-means statistical clustering (30 classes) |
代码链接：)
License
The data is licensed under a Creative Commons Attribution 4.0 International License (see section 4). By downloading and using the data the user agrees to the terms and conditions of this license.
Created by: Ouellet Dallaire, C., Lehner, B., Sayre, R., Thieme, M. & Schmitt, O
Curated by: Samapriya Roy
Keywords: water,hydrology, rivers, discharge, depth, volume, area, gloric
Last updated: 2022-07-09
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