AltiMaP: altimetry mapping procedure for hydrography data

Abstract ≥ 15  m) between the mean observed WSE and MERIT digital elevation model. These biased VSs were predominantly observed in narrow rivers at high altitudes. Following VS allocation using AltiMaP, the median root mean square error of simulated WSEs compared to satellite altimetry was 7.86 m. The error rate was improved meaningfully (10.6 %) compared to that obtained using a traditional approach, partly due to bias reduction. Thus, allocating VSs to a river network using the proposed AltiMaP framework improved our comparison of WSEs simulated by the global hydrodynamic model to those obtained by satellite altimetry. The AltiMaP source code (10.5281/zenodo.7597310, Revel et al., 2023a) and data (10.4211/hs.632e550deaea46b080bdae986fd19156, Revel et al., 2022) are freely accessible online, and we anticipate that they will be beneficial to the international hydrological community.

Object Details

• Location: Deutsche Nationalbibliothek Frankfurt am Main
• Extent: Online-Ressource
• Language: Englisch

References and Relationships

• Bibliographic citation: AltiMaP: altimetry mapping procedure for hydrography data ; volume:16 ; number:1 ; year:2024 ; pages:75-88 ; extent:14 ; Earth system science data ; 16, Heft 1 (2024), 75-88 (gesamt 14)

Contributors, Places and Time

• Creator: Revel, Menaka ; Zhou, Xudong ; Modi, Prakat ; Cretaux, Jean-François ; Calmant, Stephane ; Yamazaki, Dai

Further information

• DOI: 10.5194/essd-16-75-2024
• URN: urn:nbn:de:101:1-2024011103253033727477
• Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
• Last update: 15.08.2025, 7:35 AM CEST