A Geostatistical Approach to Spatial Quality Assessment of Coarse Spatial Resolution Remote Sensing Products
Joint Authors
Kyriakidis, Phaedon C.
Park, No-Wook
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-06-19
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
A geostatistical framework for spatial quality assessment framework of coarse resolution remote sensing products is presented that can account for either the scale difference or the uncertainty of reference value prediction at coarse resolutions.
A set of multiple reference field realizations is first generated at a fine spatial resolution using geostatistical simulation to explore the uncertainty in the true unknown reference field.
The upscaling of multiple reference field realizations to coarse resolution is then followed to match the spatial resolution of the target remote sensing product and create coarse resolution reference fields.
The simulated reference values at each coarse pixel are compared to the corresponding reported value from the coarse resolution remote sensing product, yielding alternative error values, from which several location-dependent statistics such as mean error, mean absolute error, and probability of overestimation can be computed.
An experiment involving monthly Tropical Rainfall Measuring Mission (TRMM) precipitation products and point-level rain gauge data over South Korea illustrates the applicability of the proposed approach.
The spatially distributed error statistics are useful to identify areas with larger errors and the degree of overestimation in the study area, leading to the identification of areas with unreliable estimates within the TRMM precipitation products.
Therefore, it is expected that the geostatistical assessment framework presented in this paper can be effectively used to evaluate the spatial quality of coarse resolution remote sensing products.
American Psychological Association (APA)
Park, No-Wook& Kyriakidis, Phaedon C.. 2019. A Geostatistical Approach to Spatial Quality Assessment of Coarse Spatial Resolution Remote Sensing Products. Journal of Sensors،Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1191510
Modern Language Association (MLA)
Park, No-Wook& Kyriakidis, Phaedon C.. A Geostatistical Approach to Spatial Quality Assessment of Coarse Spatial Resolution Remote Sensing Products. Journal of Sensors No. 2019 (2019), pp.1-14.
https://search.emarefa.net/detail/BIM-1191510
American Medical Association (AMA)
Park, No-Wook& Kyriakidis, Phaedon C.. A Geostatistical Approach to Spatial Quality Assessment of Coarse Spatial Resolution Remote Sensing Products. Journal of Sensors. 2019. Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1191510
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1191510