Operational Actual Wetland Evapotranspiration Estimation for South Florida Using MODIS Imagery
Evapotranspiration is a reliable indicator of wetland health. Wetlands are an important and valuable ecosystem on the South Florida landscape. Accurate wetland Actual Evapotranspiration (AET) data can be used to evaluate the performance of South Florida’s Everglades restoration programs. However, re...
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doaj-ce66abc1ea2b4cfc9c465f7e38db54aa2020-11-24T23:07:08ZengMDPI AGRemote Sensing2072-42922015-03-01743613363210.3390/rs70403613rs70403613Operational Actual Wetland Evapotranspiration Estimation for South Florida Using MODIS ImageryCristobal N. Ceron0Assefa M. Melesse1René Price2Shimelis B. Dessu3Hari P. Kandel4Department of Earth and Environment, Florida International University, Miami, FL 33199, USADepartment of Earth and Environment, Florida International University, Miami, FL 33199, USADepartment of Earth and Environment, Florida International University, Miami, FL 33199, USADepartment of Earth and Environment, Florida International University, Miami, FL 33199, USADepartment of Earth and Environment, Florida International University, Miami, FL 33199, USAEvapotranspiration is a reliable indicator of wetland health. Wetlands are an important and valuable ecosystem on the South Florida landscape. Accurate wetland Actual Evapotranspiration (AET) data can be used to evaluate the performance of South Florida’s Everglades restoration programs. However, reliable AET measurements rely on scattered point measurements restricting applications over a larger area. The objective of this study was to validate the ability of the Simplified Surface Energy Balance (SSEB) approach and the Simple Method (also called the Abtew Method) to provide large area AET estimates for wetland recovery efforts. The study used Moderate Resolution Imaging Spectroradiometer (MODIS) sensor spectral data and South Florida Water Management District (SFWMD) solar radiation data to derive weekly AET values for South Florida. The SSEB-Simple Method approach provided acceptable results with good agreement with observed values during the critical dry season period, when cloud cover was low (rave (n = 59) = 0.700, pave < 0.0005), but requires further refinement to be viable for yearly estimates because of poor performance during wet season months, mainly because of cloud contamination. The approach can be useful for short-term wetland recovery assessment projects that occur during the dry season and/or long term projects that compare site AET rates from dry season to dry season.http://www.mdpi.com/2072-4292/7/4/3613evergladesevapotranspirationMODISsimple modelSSEBsurface temperature |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Cristobal N. Ceron Assefa M. Melesse René Price Shimelis B. Dessu Hari P. Kandel |
spellingShingle |
Cristobal N. Ceron Assefa M. Melesse René Price Shimelis B. Dessu Hari P. Kandel Operational Actual Wetland Evapotranspiration Estimation for South Florida Using MODIS Imagery Remote Sensing everglades evapotranspiration MODIS simple model SSEB surface temperature |
author_facet |
Cristobal N. Ceron Assefa M. Melesse René Price Shimelis B. Dessu Hari P. Kandel |
author_sort |
Cristobal N. Ceron |
title |
Operational Actual Wetland Evapotranspiration Estimation for South Florida Using MODIS Imagery |
title_short |
Operational Actual Wetland Evapotranspiration Estimation for South Florida Using MODIS Imagery |
title_full |
Operational Actual Wetland Evapotranspiration Estimation for South Florida Using MODIS Imagery |
title_fullStr |
Operational Actual Wetland Evapotranspiration Estimation for South Florida Using MODIS Imagery |
title_full_unstemmed |
Operational Actual Wetland Evapotranspiration Estimation for South Florida Using MODIS Imagery |
title_sort |
operational actual wetland evapotranspiration estimation for south florida using modis imagery |
publisher |
MDPI AG |
series |
Remote Sensing |
issn |
2072-4292 |
publishDate |
2015-03-01 |
description |
Evapotranspiration is a reliable indicator of wetland health. Wetlands are an important and valuable ecosystem on the South Florida landscape. Accurate wetland Actual Evapotranspiration (AET) data can be used to evaluate the performance of South Florida’s Everglades restoration programs. However, reliable AET measurements rely on scattered point measurements restricting applications over a larger area. The objective of this study was to validate the ability of the Simplified Surface Energy Balance (SSEB) approach and the Simple Method (also called the Abtew Method) to provide large area AET estimates for wetland recovery efforts. The study used Moderate Resolution Imaging Spectroradiometer (MODIS) sensor spectral data and South Florida Water Management District (SFWMD) solar radiation data to derive weekly AET values for South Florida. The SSEB-Simple Method approach provided acceptable results with good agreement with observed values during the critical dry season period, when cloud cover was low (rave (n = 59) = 0.700, pave < 0.0005), but requires further refinement to be viable for yearly estimates because of poor performance during wet season months, mainly because of cloud contamination. The approach can be useful for short-term wetland recovery assessment projects that occur during the dry season and/or long term projects that compare site AET rates from dry season to dry season. |
topic |
everglades evapotranspiration MODIS simple model SSEB surface temperature |
url |
http://www.mdpi.com/2072-4292/7/4/3613 |
work_keys_str_mv |
AT cristobalnceron operationalactualwetlandevapotranspirationestimationforsouthfloridausingmodisimagery AT assefammelesse operationalactualwetlandevapotranspirationestimationforsouthfloridausingmodisimagery AT reneprice operationalactualwetlandevapotranspirationestimationforsouthfloridausingmodisimagery AT shimelisbdessu operationalactualwetlandevapotranspirationestimationforsouthfloridausingmodisimagery AT haripkandel operationalactualwetlandevapotranspirationestimationforsouthfloridausingmodisimagery |
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