Validation

Roelfsema, Christiaan M. and Phinn, Stuart R. (2013). Validation. In James A. Goodman, Samuel J. Purkis and Stuart R. Phinn (Ed.), Coral Reef Remote Sensing: A Guide for Multi-level Sensing Mapping and Assessment (pp. 375-401) Dordrecht, Netherlands: Springer. doi:10.1007/978-90-481-9292-2


Author Roelfsema, Christiaan M.
Phinn, Stuart R.
Title of chapter Validation
Title of book Coral Reef Remote Sensing: A Guide for Multi-level Sensing Mapping and Assessment
Place of Publication Dordrecht, Netherlands
Publisher Springer
Publication Year 2013
Sub-type Research book chapter (original research)
DOI 10.1007/978-90-481-9292-2
ISBN 9789048192915
9789048192922
Editor James A. Goodman
Samuel J. Purkis
Stuart R. Phinn
Chapter number 14
Start page 375
End page 401
Total pages 27
Total chapters 15
Collection year 2014
Language eng
Formatted Abstract/Summary
Adequate understanding of the validity of information contained in coral reef remote sensing products is required to support research and management decisions. This chapter introduces accuracy measures commonly applied to two types of coral related maps: discrete (e.g., benthic cover type) and continuous (e.g., percent coral cover). A critical review of 80 coral reef remote sensing mapping publications presents the approaches and metrics commonly used to measure accuracy. The literature review shows that few studies report accuracy information at all, and when obtained, ‘overall accuracy’ was the most commonly used accuracy measure. Variations in accuracy levels were not only a result of actual differences in map accuracy, but are likely also due to: spatial complexity of benthic features present in the study area; distribution of the calibration and validation samples relative to each other; and the level of detail measured for each sample. As a result, accuracy measures from different studies should be compared with caution and with due attention to how the measures were derived. This chapter enables scientist and managers to understand, design and interpret validation procedures for image-based maps of coral reef environments.
Q-Index Code B1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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Created: Sat, 01 Feb 2014, 01:25:35 EST by Claire Lam on behalf of School of Geography, Planning & Env Management