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Sebal ET Estimation Reference Morse, A., Tasumi, M., Allen, R. G., and Kramber, W. 2000. Final Report. Application of the SEBAL Methodology for Estimating.

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Presentation on theme: "Sebal ET Estimation Reference Morse, A., Tasumi, M., Allen, R. G., and Kramber, W. 2000. Final Report. Application of the SEBAL Methodology for Estimating."— Presentation transcript:

1 Sebal ET Estimation Reference Morse, A., Tasumi, M., Allen, R. G., and Kramber, W. 2000. Final Report. Application of the SEBAL Methodology for Estimating Consumptive Use of Water and Streamflow Depletion in the Bear River Basin of Idaho through Remote Sensing. Idaho Department of Water Resources, University of Idaho, Department of Biological and Agricultural Engineering. The file is stored as ”FinalAllenReport.pdf” and can be downloaded from our website: http://weather.nmsu.edu/teaching_Material/soil470/sebal/downloadvis ualizationinstruction/FinalAllenReport.pdf References and Downloaded Files

2 The official manual of Aster data http://asterweb.jpl.nasa.gov/workshop/p resentations/aster_user_guide_v2.pdf Or download it at our web site: need to be set.

3 Download and visualize Aster data Please see the instruction about how to download, open, export, and visualize the Aster satellite data at: http://weather.nmsu.edu/teaching_Material/soil47 0/Aster-data-and-HDF- Presentation_files/frame.htm

4 Download HDFView2.1 software http://hdf.ncsa.uiuc.edu/hdf-java-html/hdfview/ Or our web site: Need to be set

5 Downloaded data used in ET calculation Radiance at 12:00 on 09/04/2002 at Las Cruces. http://weather.nmsu.edu/teaching_Material/soil470/sebal/downloadedfiles/satellitedata/AST_L1B_003_0904 2002175822_01142003061252.hdf Surface temperature at 12:00 on 09/04/2002 at Las Cruces. http://weather.nmsu.edu/teaching_Material/soil470/sebal/downloadedfiles/sate llitedata/AST_08_003090420021758220000000.hdf Reflectance data at 12:00 on 09/04/2002 at Las Cruces. http://weather.nmsu.edu/teaching_Material/soil470/sebal/Downloade Files/Satellitedata/AST_07_003090420021758220030000.hdf0 http://weather.nmsu.edu/teaching_Material/soil470/sebal/Downloade Files/Satellitedata/AST_07_003090420021758220030000.hdf1

6 The Surface Reflectance Scale Factor http://weather.nmsu.edu/teaching_Material/soil470/seba l/downloadedfiles/references/ ASTER On-Demand L2 Surface Reflectance VNIR File Format.htm http://weather.nmsu.edu/teaching_Material/soil470/seba l/downloadedfiles/references/ ASTER On-Demand L2 Surface Reflectance SWIR Format.htm

7 The long wave radiation calculation The long wave radiation calculation follows equation 45 in: http://weather.nmsu.edu/teaching_Material/ soil470/sebalfolder/references/Standard ETO equations.pdf

8 Roughness calculation from NDVI Bastiaanssen, W.G.M., M. Menenti, R.A. Feddes, and A.A.M. Holtslag. 1998. A remote sensing surface energy balance algorithm for land (SEBAL): 1. Formulation. J. Hydrology 212-213, p. 198-212.

9 Albedo calculation from reflectance data (Laing, et. al., 2002) Liang, Shunlin, Chad J. Shuey, Andrew L. Russ, Hongliang Fang, Mingzhen Chen, Charles L. Walthall, Craig S.T. Daughtry, Raymond Hunt Jr. 2002. Narrowband to broadband conversions of land surface albedo: II. Validation. Remote Sensing of Environment 84, 25–41. http://weather.nmsu.edu/teaching_Material/soil470/se bal/downloadedfiles/references/Liang2002AlbedoCal culation.pdf

10 Dry soil albedo http://weather.nmsu.edu/teaching_Material/ soil470/sebalfolder/references/SoilAlbedoM atthias.pdf

11 Hourly Etr calculatiuon The hourly Etr calculatio used FAO Penman- Monteith equation. Please find equation 6 in: http://www.fao.org/docrep/X0490E/x0490e06.htm #fao%20penman%20monteith%20equation Or: http://weather.nmsu.edu/teaching_Material/soil47 0/sebal/DownloadedFiles/References/Chapter%20 2%20-%20FAO%20Penman- Monteith%20equation.htm

12 Visualize any ASCII Data Please read the instruction about how to visualize data at: http://weather.nmsu.edu/pecans/Romote%20s ensing/TxtVisualization/

13 Energy Balance Equation, Roughness Length, etc… Campbell, G. S., and Norman, J. M. (1998). An introduction to environmental biophysics (Second edition). Springer.

14 UTC Time Conversion The file of “UTC Time Conversion.htm” shows the time conversion method. http://setiathome.ssl.berkeley.edu/utc.html It can also be shown on our web at: The site needs to be set.

15 Other relative references They can be downloaded at our website also at: Need to be set.

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