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 language | English |
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Title of host publication | 2012 IEEE International Geoscience & Remote Sensing Symposium |
Subtitle of host publication | Proceedings |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 1594-1597 |
Number of pages | 4 |
ISBN (Electronic) | 978-1-4673-1159-5 |
ISBN (Print) | 978-1-4673-1160-1 |
DOIs | |
Publication status | Published - 2012 |
Externally published | Yes |
Event | 2012 32nd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012 - Munich, Germany Duration: 22 Jul 2012 → 27 Jul 2012 |
Conference
Conference | 2012 32nd IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012 |
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Country/Territory | Germany |
City | Munich |
Period | 22/07/12 → 27/07/12 |
Keywords
- CHRIS/Proba
- Evapotranspiration
- MESMA
- Recharge
- Runoff