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Service Description: The SWOT Level 2 River Single-Pass Vector Data Product (SWOT_L2_HR_RiverSP_D) provides hydrologic measurements for predefined river reaches and nodes, derived from high-resolution radar observations collected by the Ka-band Radar Interferometer (KaRIn) aboard the SWOT satellite. This product reports water surface elevation, slope, width, area, and discharge estimates for each reach, along with corresponding node-level details. All features are defined by the Prior River Database (PRD), which encodes river geometry and topology across global basins.
Each granule covers a single satellite pass over one or more continents and includes two ESRI shapefiles: one for river reaches (as polylines) and one for nodes (as points). Shapefile attributes include both SWOT-derived measurements and metadata from the PRD. Water surface elevations are referenced to the WGS84 ellipsoid and are corrected for geoid height and solid Earth, load, and pole tides. Measurements are aggregated from lower-level pixel detections (PIXC product) assigned to hydrologic features via the auxiliary PIXCVec product. The product also includes consensus and algorithm-specific river discharge estimates, both unconstrained and constrained by historical gauge data. The RiverSP product provides reach-scale hydrologic variables suitable for analyzing inland water dynamics, estimating discharge, and monitoring river changes over time. It enables direct integration with the PRD-defined river network and supports applications in large-scale hydrologic modeling, basin monitoring, and water resource management. Data are distributed in shapefile format with metadata and attribute definitions aligned to GIS and hydrologic standards.
This collection is a sub-collection of its parent: https://doi.org/10.5067/SWOT-RIVERSP-D
For question about this service, please contact podaac@podaac.jpl.nasa.gov
Map Name: Map
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Service Item Id: ec77b4b39dca452fb5e53c8477269597
Copyright Text: Surface Water Ocean Topography (SWOT) Project, National Aeronautics and Space Administration (NASA), NASA Jet Propulsion Labratory (JPL), Physical Oceanography Distributed Active Archive Center (PO.DAAC).
Spatial Reference:
4326
(4326)
LatestVCSWkid(0)
Single Fused Map Cache: false
Initial Extent:
XMin: -197.9999873949281
YMin: -123.86396660979207
XMax: 197.9999873949281
YMax: 123.86396660979207
Spatial Reference: 4326
(4326)
LatestVCSWkid(0)
Full Extent:
XMin: -179.99998178499996
YMin: -51.99835748899994
XMax: 179.99999319900007
YMax: 78.42159895600008
Spatial Reference: 4326
(4326)
LatestVCSWkid(0)
Time Info:
Time Extent:
[2025/05/04 23:50:17 UTC, 2025/09/29 23:44:14 UTC]
Time Reference:
N/A
Units: esriDecimalDegrees
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: Map
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Category:
Keywords: SWOT,Hydrology,River Reach,NASA,PODAAC,Earth Science,Earth Data
AntialiasingMode: Fast
TextAntialiasingMode: Force
Supports Dynamic Layers: false
Resampling: false
MaxRecordCount: 10000
MaxSelectionCount: 2000
MaxImageHeight: 4096
MaxImageWidth: 4096
Supported Query Formats: JSON, geoJSON, PBF
Supports Query Data Elements: true
Min Scale: 10000000
Max Scale: 5000
Supports Datum Transformation: true
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