Use of land-cover fractions derived from MESMA for urban water balance calculation

Luca Demarchi, Frank Canters, Jonathan Cheung-Wai Chan, Eva Ampe, Okke Batelaan

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)

Abstract

Multiple Endmember Spectral Mixture Analysis (MESMA) is a useful method to deal with issues of spatial and spectral heterogeneity in urban areas, allowing endmembers to vary on a per-pixel basis. In this study, per-pixel land-cover fractions obtained from MESMA are used as an input for spatially distributed hydrological modeling in a strongly urbanized area. Different components of the water balance are estimated using per-pixel land-cover fractions and compared to results obtained with a semi-distributed approach, where land-cover composition is fixed a priori for each land-use type, using default model parameters. Access to spatially detailed information on the impervious surface and vegetation component proves to have a strong impact on surface runoff and groundwater recharge calculations for different land-uses. Use of MESMA, providing accurate estimates land-cover composition for each pixel may therefore contribute to improving water balance calculation in urbanized areas.

Original languageEnglish
Title of host publication2012 IEEE International Geoscience & Remote Sensing Symposium
Subtitle of host publicationProceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1594-1597
Number of pages4
ISBN (Electronic)978-1-4673-1159-5
ISBN (Print)978-1-4673-1160-1
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event2012 32nd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012 - Munich, Germany
Duration: 22 Jul 201227 Jul 2012

Conference

Conference2012 32nd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012
CountryGermany
CityMunich
Period22/07/1227/07/12

Keywords

  • CHRIS/Proba
  • Evapotranspiration
  • MESMA
  • Recharge
  • Runoff

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