20-01-13
Presentatietitel: aanpassen via
Beeld, Koptekst en voettekst
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Irrigation assessment via remote sensing
evapotranspiration and land surface model data
Mireia Romaguera
Bob Su, Suhyb Salama. Water Resources dep., Univ. Twente
Arjen J. Hoekstra, Maarten Krol. Water Engineering and Management dep., Univ. Twente
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Content
Introduction
Method
Datasets
Results
Concluding remarks
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INTRODUCTION
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INTRODUCTION
Evapotranspiration
Transpiration
Evaporation
Runoff
Ground Water
Storage
?
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Land Surface Models
Surface parameters
driving forces
(water and energy balance eq’s)
Soil Moisture and Surface temperature
Water and Energy Fluxes
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Land Surface Models
Surface parameters
driving forces
(water and energy balance eq’s)
Model ET is underestimated in Irrigated areas
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ET blue=
ΔET-bias
ET (mm/day)
ET (mm/day)
Source:
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Data
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Data
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Data
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RESULTS
Spatial
analysis
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Difference between ET
b
generated in
this work and the WF
b
(mm/year)
given by Mekonnen and Hoekstra
(2011).
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Concluding remarks
A framework to quantify blue ET (or irrigation water) at large scale
and high temporal frequency has been provided.
Challenges were found to validate the proposed methodology.
Further research is open to understand the processes at different
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LAND SURFACE TEMPERATURE in GEOTHERMAL AREAS
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LAND SURFACE TEMPERATURE in GEOTHERMAL AREAS
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• Romaguera, M., Hoekstra, A.Y., Su, Z., Krol, M.S., & Salama, M.S. (2010). Potential of Using Remote Sensing Techniques for Global Assessment of Water Footprint of Crops. Remote Sensing, 2(4), 1177-1196
• Romaguera, M., Krol, M.S., Salama, M.S., Hoekstra, A.Y., & Su, Z. (2012). Determining Irrigated Areas and Quantifying Blue Water Use in Europe Using Remote Sensing Meteosat Second Generation (MSG) products and Global Land Data Assimilation System (GLDAS) Data. Photogrammetric Engineering and Remote Sensing, 78, 861-873
• Romaguera, M., Salama, S., Krol, M.S., Hoekstra, A.Y., & Su, Z. (2014a). Towards the Improvement of Blue Evapotranspiration Estimates by Combining Remote Sensing and Model Simulation. Remote Sensing, 6, 7026-7049
• Romaguera, M., Krol, M.S., Salama, M.S., Su, Z., & Hoekstra, A.Y. (2014b). Application of a Remote Sensing Method for Estimating Monthly Blue Water Evapotranspiration in Irrigated Agriculture. Remote Sensing, 6, 10033-10050
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Extra slides
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Extra slides
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