Kivi: the smartest of pebbles

Georgios Maniatis, Gert Toming, Trevor Hoey, Jeffrey A. Tuhtan

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNConference contribution with ISSN or ISBNpeer-review


Kivi is a new smart pebble sensor designed to simultaneously capture impact 1kHz and inertial and pressure measurements 100Hz in geomorphological studies. This paper presents the design and development of Kivi, which is available as either a 55mm diameter sphere or as an ellipsoid with dimensions of 80mm x 63mm x 56mm. The sensor is equipped with a microcontroller and rechargeable battery, and has a storage capacity of 8GB. Preliminary testing, including static pressure measurements, impact tests, and flume laboratory experiments, demonstrates Kivi's ability to accurately capture sediment behaviour in riverine environments. The sensor holds significant potential for enhancing our understanding of fundamental sediment transport and erosion processes, with applications in environmental protection and infrastructure development.

Original languageEnglish
Title of host publicationProceedings of the 40th IAHR World Congress
EditorsHelmut Habersack, Michael Tritthart, Lisa Waldenberger
Number of pages7
Publication statusPublished - 2023
Event40th IAHR World Congress, 2023 - Vienna, Austria
Duration: 21 Aug 202325 Aug 2023

Publication series

NameProceedings of the IAHR World Congress
ISSN (Print)2521-7119
ISSN (Electronic)2521-716X


Conference40th IAHR World Congress, 2023

Bibliographical note

Publisher Copyright:
© 2023 IAHR – International Association for Hydro-Environment Engineering and Research.


  • geomorphology
  • hydraulics
  • Kivi
  • sediment transport
  • smart pebble


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