WWF HydroSHEDS Free Flowing Rivers Network v1

Dataset Availability: 2000-02-11T00:00:00Z–2000-02-22T00:00:00Z
Dataset Provider: WWF

Tags: geophysical hydrography hydrology hydrosheds srtm surface-ground-water table water wwf
flow-regulation

river-networks

Description

HydroSHEDS is a mapping product that provides hydrographic information for regional and global-scale applications in a consistent format. It offers a suite of geo-referenced datasets (vector and raster) at various scales, including river networks, watershed boundaries, drainage directions, and flow accumulations. HydroSHEDS is based on elevation data obtained in 2000 by NASA's Shuttle Radar Topography Mission (SRTM).

This dataset provides polylines that represent river networks, derived from and consistent with other HydroSHEDS datasets. These data are based on 15 arc-seconds (approx. 500 m at the equator) resolution raster data.

Mapping the world's free-flowing rivers: data set and technical documentation

Note that the quality of the HydroSHEDS data is significantly lower for regions above 60 degrees northern latitude as there is no underlying SRTM elevation data available and thus a coarser-resolution DEM was (HYDRO1k provided by USGS).

HydroSHEDS was developed by the World Wildlife Fund (WWF) Conservation Science Program in partnership with the U.S. Geological Survey, the International Centre for Tropical Agriculture, The Nature Conservancy, and the Center for Environmental Systems Research of the University of Kassel, Germany.

Table Schema

Table Schema

Name	Type	Description
BAS_ID	INT	Basin Identifier. Identifies the hydrological river basin according to the HydroSHEDS framework
BAS_NAME	STRING	Basin Name (if available). Based on HydroSHEDS original basins and other sources.
BB_DIS_ORD	INT	Backbone river discharge order. River Order (RIV_ORD) of the most downstream reach of the backbone river (BB_ID).
BB_ID	INT	Backbone River Identifier. Represents the contiguous river unit (defined as flow path from source/headwater to sink/terminus).
BB_LEN_KM	DOUBLE	Backbone river length. Sum of length (LENGTH_KM) of the river reaches of the backbone river (BB_ID).
BB_OCEAN	DOUBLE	Ocean connectivity. Determines if river reach is part of a backbone river (BB_ID) that is directly connected to the ocean (value=1) or not (value=0). Used to summarize statistics based on connectivity to ocean.
BB_VOL_TCM	DOUBLE	Backbone river volume. Sum of volume (VOLUME_TCM) of the river reaches of the backbone river (BB_ID).
CONTINENT	STRING	Name of the continent. See CON_ID.
CON_ID	DOUBLE	Identifier for the continent to which the reach belongs. Continent boundaries are delineated based on HydroBASINS. * 1 = North America * 2 = South America * 3 = Europe * 4 = Africa * 5 = Asia * 6 = Australia
COUNTRY	STRING	Country name
CSI	DOUBLE	Connectivity Status. Index from 0 to 100%; 100% = full connectivity; 0% = no connectivity.
CSI_D	STRING	Dominant pressure factor (DOM). Possible field values are: DOF; DOR; SED; USE; RDD; URB.
CSI_FF	INT	CSI above or below free-flowing threshold. Indicates if the CSI value of a river reach is below (value = 0) or above (value = 1) the threshold of 95%. The attribute is used to calculate the free-flowing status of the river (see CSI_FF1 and CSI_FF2).
CSI_FF1	INT	Free-flowing status (two categories). Indicates river reaches that belong to a river with "freeflowing" status (value = 1) or "non-free-flowing" status (value = 3). Note that the value 2 is reserved for river stretches with "good connectivity" status (see CSI_FF2).
CSI_FF2	INT	Free-flowing status (three categories). Indicates river reaches that belong to a river with "free flowing" status (value = 1), or a river stretch with "good connectivity" status (value = 2) or a river or river stretch with "impacted" status(value = 3).
CSI_FFID	INT	River stretch identifier. Additional identifier to distinguish contiguous river stretches.
DIS_AV_CMS	DOUBLE	Average long-term (1971-2000) naturalized discharge in cubic meters per second (CMS).
DOF	DOUBLE	Degree of Fragmentation. Index from 0 to 100% (see extended Data figure 5a of manuscript).
DOR	DOUBLE	Degree of Regulation. Index from 0 to 100% (see extended Data figure 5b of manuscript).
ERO_YLD_TO	DOUBLE	Sum of erosion in tons per year per river reach. Calculated as the sum of sediment erosion within the river reach catchment (i.e., sediment erosion is not accumulated along the river network).
FLD	DOUBLE	Inundation (floodplain) extent in river reach catchment (%).
GOID	INT	The feature ID.
HYFALL	DOUBLE	Indicates the presence (1) or absence (0) of one or more waterfalls along the river reach.
INC	DOUBLE	Filter field. In Grill et al. (2019), we considered all river reaches for routing purposes, but only analyzed and produced results for a subset of river reaches (INC = 1).
LENGTH_KM	DOUBLE	Length of the river reach in kilometers.
NDOID	INT	Identifies the NOID of the next downstream river reach. If value=0, the river reach represents a terminal reach (ocean, inland sink).
NOID	INT	Network Object Identifier. Same purpose as GOID'
NUOID	STRING	Identifies the NOIDs of the next upstream river reach. If there is "NoData" given, the reach is a headwater reach. Otherwise, the field holds 2 or more NOIDs. In the case of multiple NOIDs, the NOIDs are separated by an underscore.
OBJECTID	INT	Object Identifier
RDD	DOUBLE	Road construction. Index from 0 to 100% (see extended Data figure 5e of manuscript).
REACH_ID	INT	Reach Identifier. The reach identifier can be used to link this dataset to the HydroATLAS database.
RIV_ORD	INT	River order. River order is here defined and calculated based on the long-term average discharge (DIS_AV_CMS) using logarithmic progression: * 1 = > 100000 * 2 = 10000 - 100000 * 3 = 1000 - 10000 * 4 = 100 - 1000 * 5 = 10 - 100 * 6 = 1 - 10 * 7 = 0.1 - 1 * 8 = 0.01 - 0.1 * 9 = 0.001 - 0.01 * 10 = < 0.001
SED	DOUBLE	Sediment trapping. Index from 0 to 100% (see extended Data figure 5c of manuscript).
Shape_Leng	DOUBLE	Use field LENGTH_KM instead.
UPLAND_SKM	DOUBLE	Upstream watershed area of river reach in square kilometers (SKM).
URB	DOUBLE	Urbanization. Index from 0 to 100% (see extended Data figure 5f of manuscript).
USE	DOUBLE	Water consumption. Index from 0 to 100% (see extended Data figure 5d of manuscript).
VOLUME_TCM	DOUBLE	Volume of the reach channel in thousand cubic meters (TCM). Calculated using width, length and depth of river channel.

Terms of Use

Terms of Use

HydroSHEDS data are free for non-commercial and commercial use. For more information, please refer to the License Agreement .

Citations

Lehner, B., Verdin, K., Jarvis, A. (2008): New global hydrography derived from spaceborne elevation data. Eos, Transactions, AGU, 89(10): 93-94.
Grill, G., Lehner, B., Thieme, M., Geenen, B., Tickner, D., Antonelli, F., Babu, S., Borrelli, P., Cheng, L., Crochetiere, H. and Macedo, H.E., 2019. Mapping the world's free-flowing rivers. Nature, 569(7755), p.215. Data is available at www.hydrosheds.org

Explore with Earth Engine

Code Editor (JavaScript)

 var 
  
 dataset 
  
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 FeatureCollection 
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Open in Code Editor

Visualize as a FeatureView

A FeatureView is a view-only, accelerated representation of a FeatureCollection . For more details, visit the FeatureView documentation.

Code Editor (JavaScript)

 var 
  
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Open in Code Editor

WWF HydroSHEDS Free Flowing Rivers Network v1

WWF/HydroSHEDS/v1/FreeFlowingRivers, geophysical,hydrography,hydrology,hydrosheds,srtm,surface-ground-water,table,water,wwf

2000-02-11T00:00:00Z/2000-02-22T00:00:00Z

-90 -180 90 180

Google Earth Engine

https://developers.google.com/earth-engine/datasets

WWF HydroSHEDS Free Flowing Rivers Network v1 Stay organized with collections Save and categorize content based on your preferences.

Description

Table Schema

Terms of Use

Citations

Explore with Earth Engine

Code Editor (JavaScript)

Visualize as a FeatureView

Code Editor (JavaScript)

WWF HydroSHEDS Free Flowing Rivers Network v1