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Part 1: Document Description
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Citation |
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Title: |
Satellite Altimetry-based Extension of global-scale in situ river discharge Measurements (SAEM) |
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Identification Number: |
doi:10.18419/darus-4475 |
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Distributor: |
DaRUS |
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Date of Distribution: |
2024-09-18 |
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Version: |
1 |
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Bibliographic Citation: |
Saemian, Peyman; Elmi, Omid; Stroud, Molly; Riggs, Ryan; Kitambo, Benjamin M.; Papa, Fabrice; Allen, George H.; Tourian, Mohammad J., 2024, "Satellite Altimetry-based Extension of global-scale in situ river discharge Measurements (SAEM)", https://doi.org/10.18419/DARUS-4475, DaRUS, V1 |
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Citation |
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Title: |
Satellite Altimetry-based Extension of global-scale in situ river discharge Measurements (SAEM) |
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Identification Number: |
doi:10.18419/darus-4475 |
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Authoring Entity: |
Saemian, Peyman (Institute of Geodesy, University of Stuttgart) |
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Elmi, Omid (Institute of Geodesy, University of Stuttgart) |
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Stroud, Molly (Department of Geosciences, Virginia Polytechnic Institute and State University, Virginia, USA) |
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Riggs, Ryan (Water Mission Area, U.S. Geological Survey, Conroe, TX, USA) |
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Kitambo, Benjamin M. (Laboratoire d’Etudes en Géophysique et Océanographie Spatiales (LEGOS), Université de Toulouse, CNES/CNRS/IRD/UT3, Toulouse, France) |
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Papa, Fabrice (Laboratoire d’Etudes en Géophysique et Océanographie Spatiales (LEGOS), Université de Toulouse, CNES/CNRS/IRD/UT3, Toulouse, France) |
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Allen, George H. (Department of Geosciences, Virginia Polytechnic Institute and State University, Virginia, USA) |
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Tourian, Mohammad J. (Institute of Geodesy, University of Stuttgart) |
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Grant Number: |
324641997 |
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Distributor: |
DaRUS |
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Access Authority: |
Saemian, Peyman |
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Access Authority: |
Tourian, Mohammad J. |
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Depositor: |
Saemian, Peyman |
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Date of Deposit: |
2024-09-10 |
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Holdings Information: |
https://doi.org/10.18419/DARUS-4475 |
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Study Scope |
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Keywords: |
Earth and Environmental Sciences, Discharge, River Discharge, Remote Sensing, Satellite Altimetry |
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Topic Classification: |
Geosciences |
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Abstract: |
The Satellite Altimetry-based Extension of global-scale in situ river discharge Measurements (SAEM) dataset provides a comprehensive solution for addressing gaps in river discharge measurements by leveraging satellite altimetry. This dataset offers enhanced coverage for river discharge estimations by utilizing data from multiple satellite missions and integrating it with existing river gauge networks. It supports sustainable development and helps address complex water-related challenges exacerbated by climate change. The first version of SAEM includes (1) height-based discharge estimates for 8,730 river gauges, covering approximately 88% of the total gauged discharge volume globally. These estimates demonstrate a median Kling-Gupta Efficiency (KGE) of 0.48, surpassing the performance of current global datasets. (2) Catalog of Virtual Stations (VSs): a catalog of VSs defined by specific criteria, including each station’s coordinates, associated satellite altimetry missions, distance to discharge gauges, and quality flags. (3) Altimetric Water Level Time Series: time series data of water levels from VSs that provide high-quality discharge estimates. The water level data are sourced from both existing Level-3 datasets and newly generated data within this study, including contributions from Hydroweb.Next, DAHITI, GRRATS, and HydroSat. Non-parametric quantile mapping functions: for VSs, which model the transformation of water level time series into discharge data using a Nonparametric Stochastic Quantile Mapping Function approach. |
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Methodology and Processing |
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Sources Statement |
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Data Access |
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Other Study Description Materials |
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Label: |
SAEM_Discharge_V01.nc |
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Notes: |
application/netcdf |
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Label: |
SAEM_NPQMfunctions_V01.nc |
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Notes: |
application/netcdf |
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Label: |
SAEM_VS_Catalogue_V01_af.nc |
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Notes: |
application/netcdf |
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Label: |
SAEM_VS_Catalogue_V01_as.nc |
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application/netcdf |
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Label: |
SAEM_VS_Catalogue_V01_au.nc |
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application/netcdf |
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Label: |
SAEM_VS_Catalogue_V01_eu.nc |
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application/netcdf |
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SAEM_VS_Catalogue_V01_na.nc |
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application/netcdf |
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Label: |
SAEM_VS_Catalogue_V01_sa.nc |
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Notes: |
application/netcdf |
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Label: |
SAEM_WL_V01.nc |
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Notes: |
application/netcdf |