Impact of compositional and configurational data loss on downscaling accuracy

Research output: Contribution to conferencePaper

Abstract

Datasets collected at widely varying spatial scales are often merged to address questions related to global environmental change. Integrating data requires aggregation, which reduces data quality and introduces statistical biases collectively known as the Modifiable Areal Unit Problem (MAUP). These biases result from different forms of compositional and configurational data loss that occur during aggregation, but little is known about the relationship between data loss and MAUP biases for downscaling. This study uses the well-established process of landscape and surface metric scaling to examine how uncertainties related to the composition and configuration of land cover patterns propagate across scales when data are aggregated and ultimately impact downscaling results. Results suggest a link between compositional data loss and downscaling accuracy, particularly in the patch-based landscape paradigm. Further work is needed to determine if relationships exist between compositional and configurational data loss measures and downscaling error in the surface paradigm.

Original languageEnglish (US)
Pages190-194
Number of pages5
StatePublished - Jan 1 2016
Externally publishedYes
Event12th International Symposium on Spatial Accuracy Assessment in Natural Resources and Environmental Sciences, Accuracy 2016 - Montpellier, France
Duration: Jul 5 2016Jul 8 2016

Conference

Conference12th International Symposium on Spatial Accuracy Assessment in Natural Resources and Environmental Sciences, Accuracy 2016
CountryFrance
CityMontpellier
Period7/5/167/8/16

Fingerprint

downscaling
Agglomeration
Aggregation
aggregation
Paradigm
Compositional Data
trend
Unit
Land Cover
paradigm
Data Quality
data quality
Patch
scaling
loss
Scaling
environmental change
land cover
Uncertainty
Metric

Keywords

  • Heterogeneity
  • Landscape ecology
  • Remote sensing
  • Scale and scaling
  • Spatial pattern metrics

ASJC Scopus subject areas

  • Modeling and Simulation
  • Geography, Planning and Development
  • Environmental Science(all)

Cite this

Frazier, A. E., & Kedron, P. (2016). Impact of compositional and configurational data loss on downscaling accuracy. 190-194. Paper presented at 12th International Symposium on Spatial Accuracy Assessment in Natural Resources and Environmental Sciences, Accuracy 2016, Montpellier, France.

Impact of compositional and configurational data loss on downscaling accuracy. / Frazier, Amy E.; Kedron, Peter.

2016. 190-194 Paper presented at 12th International Symposium on Spatial Accuracy Assessment in Natural Resources and Environmental Sciences, Accuracy 2016, Montpellier, France.

Research output: Contribution to conferencePaper

Frazier, AE & Kedron, P 2016, 'Impact of compositional and configurational data loss on downscaling accuracy', Paper presented at 12th International Symposium on Spatial Accuracy Assessment in Natural Resources and Environmental Sciences, Accuracy 2016, Montpellier, France, 7/5/16 - 7/8/16 pp. 190-194.
Frazier AE, Kedron P. Impact of compositional and configurational data loss on downscaling accuracy. 2016. Paper presented at 12th International Symposium on Spatial Accuracy Assessment in Natural Resources and Environmental Sciences, Accuracy 2016, Montpellier, France.
Frazier, Amy E. ; Kedron, Peter. / Impact of compositional and configurational data loss on downscaling accuracy. Paper presented at 12th International Symposium on Spatial Accuracy Assessment in Natural Resources and Environmental Sciences, Accuracy 2016, Montpellier, France.5 p.
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