scholarly journals Peer Review #1 of "Ordinary kriging vs inverse distance weighting: spatial interpolation of the sessile community of Madagascar reef, Gulf of Mexico (v0.1)"

2017 ◽  
Author(s):  
L Veazey
Keyword(s):  
Gulf Of Mexico ◽  
Peer Review ◽  
Ordinary Kriging ◽  
Spatial Interpolation ◽  
Inverse Distance Weighting ◽  
Distance Weighting ◽  
Inverse Distance

scholarly journals Ordinary kriging vs inverse distance weighting: spatial interpolation of the sessile community of Madagascar reef, Gulf of Mexico

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e4078 ◽  
Author(s):  
Salvador Zarco-Perello ◽  
Nuno Simões
Keyword(s):  
Remote Sensing ◽  
Gulf Of Mexico ◽  
Spatial Variability ◽  
Ordinary Kriging ◽  
Spatial Interpolation ◽  
Prediction Errors ◽  
Interpolation Methods ◽  
Distance Weighting ◽  
Inverse Distance

Information about the distribution and abundance of the habitat-forming sessile organisms in marine ecosystems is of great importance for conservation and natural resource managers. Spatial interpolation methodologies can be useful to generate this information from in situ sampling points, especially in circumstances where remote sensing methodologies cannot be applied due to small-scale spatial variability of the natural communities and low light penetration in the water column. Interpolation methods are widely used in environmental sciences; however, published studies using these methodologies in coral reef science are scarce. We compared the accuracy of the two most commonly used interpolation methods in all disciplines, inverse distance weighting (IDW) and ordinary kriging (OK), to predict the distribution and abundance of hard corals, octocorals, macroalgae, sponges and zoantharians and identify hotspots of these habitat-forming organisms using data sampled at three different spatial scales (5, 10 and 20 m) in Madagascar reef, Gulf of Mexico. The deeper sandy environments of the leeward and windward regions of Madagascar reef were dominated by macroalgae and seconded by octocorals. However, the shallow rocky environments of the reef crest had the highest richness of habitat-forming groups of organisms; here, we registered high abundances of octocorals and macroalgae, with sponges, Millepora alcicornis and zoantharians dominating in some patches, creating high levels of habitat heterogeneity. IDW and OK generated similar maps of distribution for all the taxa; however, cross-validation tests showed that IDW outperformed OK in the prediction of their abundances. When the sampling distance was at 20 m, both interpolation techniques performed poorly, but as the sampling was done at shorter distances prediction accuracies increased, especially for IDW. OK had higher mean prediction errors and failed to correctly interpolate the highest abundance values measured in situ, except for macroalgae, whereas IDW had lower mean prediction errors and high correlations between predicted and measured values in all cases when sampling was every 5 m. The accurate spatial interpolations created using IDW allowed us to see the spatial variability of each taxa at a biological and spatial resolution that remote sensing would not have been able to produce. Our study sets the basis for further research projects and conservation management in Madagascar reef and encourages similar studies in the region and other parts of the world where remote sensing technologies are not suitable for use.

Spatial interpolation of climatic variables using land surface temperature and modified inverse distance weighting

2015 ◽  
Vol 36 (4) ◽  
pp. 1000-1025 ◽  
Author(s):  
Emre Ozelkan ◽  
Serdar Bagis ◽  
Ertunga Cem Ozelkan ◽  
Burak Berk Ustundag ◽  
Meric Yucel ◽  
...  
Keyword(s):  
Surface Temperature ◽  
Land Surface Temperature ◽  
Land Surface ◽  
Spatial Interpolation ◽  
Inverse Distance Weighting ◽  
Climatic Variables ◽  
Distance Weighting ◽  
Inverse Distance

Comparing ordinary kriging and inverse distance weighting for soil as pollution in Beijing

2018 ◽  
Vol 25 (16) ◽  
pp. 15597-15608 ◽  
Author(s):  
Pengwei Qiao ◽  
Mei Lei ◽  
Sucai Yang ◽  
Jun Yang ◽  
Guanghui Guo ◽  
...  
Keyword(s):  
Ordinary Kriging ◽  
Inverse Distance Weighting ◽  
Distance Weighting ◽  
Inverse Distance
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