Evaluation of estimated weather data for calculating Penman-Monteith reference crop evapotranspiration
Abstract Utilizing the weather generator ClimGen, daily solar radiation (Rs) and vapor pressure deficit (VPD) were estimated from temperature data and used to calculate evapotranspiration at five locations, representing tropical, temperate, semi-arid, and arid climates. ClimGen was calibrated for ea...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Stöckle, Claudio O. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2004 |
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| Schlagwörter: |
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| Anmerkung: |
© Springer-Verlag 2004 |
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| Übergeordnetes Werk: |
Enthalten in: Irrigation science - Berlin : Springer, 1978, 23(2004), 1 vom: 26. Feb., Seite 39-46 |
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| Übergeordnetes Werk: |
volume:23 ; year:2004 ; number:1 ; day:26 ; month:02 ; pages:39-46 |
| Links: |
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| DOI / URN: |
10.1007/s00271-004-0091-0 |
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| Katalog-ID: |
SPR003536882 |
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| 100 | 1 | |a Stöckle, Claudio O. |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Evaluation of estimated weather data for calculating Penman-Monteith reference crop evapotranspiration |
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| 520 | |a Abstract Utilizing the weather generator ClimGen, daily solar radiation (Rs) and vapor pressure deficit (VPD) were estimated from temperature data and used to calculate evapotranspiration at five locations, representing tropical, temperate, semi-arid, and arid climates. ClimGen was calibrated for each location using the most recent 2 or 5 years of complete daily weather records. Actual and estimated values were compared on a daily and weekly (7-day running average) basis. Error indices were defined to indicate excellent to poor performance of the estimation methods. Overall in all locations, the ClimGen estimates for both daily Rs and VPD were poor to acceptable. The weekly analyses showed significant improvement in performance for both Rs and VPD estimations in arid and semi-arid locations. Daily reference crop evapotranspiration values using the FAO Penman-Monteith equation (PM $ ET_{o} $) were calculated using complete daily weather records. These values were compared with (1) $ ET_{o} $ calculated with the PM model, actual temperature data, and ClimGen estimates of daily Rs, VPD, and generated wind speed ($ PM_{Est} $ $ ET_{o} $), and (2) $ ET_{o} $ calculated solely from actual daily temperature data using a calibrated version of the Hargreaves method ($ HG_{Adj} $ $ ET_{o} $). The daily $ PM_{Est} $ $ ET_{o} $ results were poor to acceptable in all locations, but analyses for weekly periods showed improved performance to acceptable and good levels for arid and semi-arid locations. The performance of the $ HG_{Adj} $ $ ET_{o} $ method was also poor to acceptable for daily ET estimates in all locations, while weekly analyses showed improvement. A non-calibrated version of the Hargreaves method did not work for either daily or weekly periods. The $ PM_{Est} $ $ ET_{o} $ and $ HG_{adj} $ $ ET_{o} $ methods appeared suitable for weekly periods in arid and semi-arid locations provided that at least 2 years of complete weather records were available to calibrate the parameters required. There was no advantage in using 5 years of weather records for calibration. | ||
| 650 | 4 | |a Root Mean Square Error |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Vapor Pressure Deficit |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Weather Record |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Daily Solar Radiation |7 (dpeaa)DE-He213 | |
| 650 | 4 | |a Reference Crop Evapotranspiration |7 (dpeaa)DE-He213 | |
| 700 | 1 | |a Kjelgaard, Jim |4 aut | |
| 700 | 1 | |a Bellocchi, Gianni |4 aut | |
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| 773 | 1 | 8 | |g volume:23 |g year:2004 |g number:1 |g day:26 |g month:02 |g pages:39-46 |
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10.1007/s00271-004-0091-0 doi (DE-627)SPR003536882 (SPR)s00271-004-0091-0-e DE-627 ger DE-627 rakwb eng Stöckle, Claudio O. verfasserin aut Evaluation of estimated weather data for calculating Penman-Monteith reference crop evapotranspiration 2004 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag 2004 Abstract Utilizing the weather generator ClimGen, daily solar radiation (Rs) and vapor pressure deficit (VPD) were estimated from temperature data and used to calculate evapotranspiration at five locations, representing tropical, temperate, semi-arid, and arid climates. ClimGen was calibrated for each location using the most recent 2 or 5 years of complete daily weather records. Actual and estimated values were compared on a daily and weekly (7-day running average) basis. Error indices were defined to indicate excellent to poor performance of the estimation methods. Overall in all locations, the ClimGen estimates for both daily Rs and VPD were poor to acceptable. The weekly analyses showed significant improvement in performance for both Rs and VPD estimations in arid and semi-arid locations. Daily reference crop evapotranspiration values using the FAO Penman-Monteith equation (PM $ ET_{o} $) were calculated using complete daily weather records. These values were compared with (1) $ ET_{o} $ calculated with the PM model, actual temperature data, and ClimGen estimates of daily Rs, VPD, and generated wind speed ($ PM_{Est} $ $ ET_{o} $), and (2) $ ET_{o} $ calculated solely from actual daily temperature data using a calibrated version of the Hargreaves method ($ HG_{Adj} $ $ ET_{o} $). The daily $ PM_{Est} $ $ ET_{o} $ results were poor to acceptable in all locations, but analyses for weekly periods showed improved performance to acceptable and good levels for arid and semi-arid locations. The performance of the $ HG_{Adj} $ $ ET_{o} $ method was also poor to acceptable for daily ET estimates in all locations, while weekly analyses showed improvement. A non-calibrated version of the Hargreaves method did not work for either daily or weekly periods. The $ PM_{Est} $ $ ET_{o} $ and $ HG_{adj} $ $ ET_{o} $ methods appeared suitable for weekly periods in arid and semi-arid locations provided that at least 2 years of complete weather records were available to calibrate the parameters required. There was no advantage in using 5 years of weather records for calibration. Root Mean Square Error (dpeaa)DE-He213 Vapor Pressure Deficit (dpeaa)DE-He213 Weather Record (dpeaa)DE-He213 Daily Solar Radiation (dpeaa)DE-He213 Reference Crop Evapotranspiration (dpeaa)DE-He213 Kjelgaard, Jim aut Bellocchi, Gianni aut Enthalten in Irrigation science Berlin : Springer, 1978 23(2004), 1 vom: 26. Feb., Seite 39-46 (DE-627)271175362 (DE-600)1478936-X 1432-1319 nnns volume:23 year:2004 number:1 day:26 month:02 pages:39-46 https://dx.doi.org/10.1007/s00271-004-0091-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 23 2004 1 26 02 39-46 |
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10.1007/s00271-004-0091-0 doi (DE-627)SPR003536882 (SPR)s00271-004-0091-0-e DE-627 ger DE-627 rakwb eng Stöckle, Claudio O. verfasserin aut Evaluation of estimated weather data for calculating Penman-Monteith reference crop evapotranspiration 2004 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag 2004 Abstract Utilizing the weather generator ClimGen, daily solar radiation (Rs) and vapor pressure deficit (VPD) were estimated from temperature data and used to calculate evapotranspiration at five locations, representing tropical, temperate, semi-arid, and arid climates. ClimGen was calibrated for each location using the most recent 2 or 5 years of complete daily weather records. Actual and estimated values were compared on a daily and weekly (7-day running average) basis. Error indices were defined to indicate excellent to poor performance of the estimation methods. Overall in all locations, the ClimGen estimates for both daily Rs and VPD were poor to acceptable. The weekly analyses showed significant improvement in performance for both Rs and VPD estimations in arid and semi-arid locations. Daily reference crop evapotranspiration values using the FAO Penman-Monteith equation (PM $ ET_{o} $) were calculated using complete daily weather records. These values were compared with (1) $ ET_{o} $ calculated with the PM model, actual temperature data, and ClimGen estimates of daily Rs, VPD, and generated wind speed ($ PM_{Est} $ $ ET_{o} $), and (2) $ ET_{o} $ calculated solely from actual daily temperature data using a calibrated version of the Hargreaves method ($ HG_{Adj} $ $ ET_{o} $). The daily $ PM_{Est} $ $ ET_{o} $ results were poor to acceptable in all locations, but analyses for weekly periods showed improved performance to acceptable and good levels for arid and semi-arid locations. The performance of the $ HG_{Adj} $ $ ET_{o} $ method was also poor to acceptable for daily ET estimates in all locations, while weekly analyses showed improvement. A non-calibrated version of the Hargreaves method did not work for either daily or weekly periods. The $ PM_{Est} $ $ ET_{o} $ and $ HG_{adj} $ $ ET_{o} $ methods appeared suitable for weekly periods in arid and semi-arid locations provided that at least 2 years of complete weather records were available to calibrate the parameters required. There was no advantage in using 5 years of weather records for calibration. Root Mean Square Error (dpeaa)DE-He213 Vapor Pressure Deficit (dpeaa)DE-He213 Weather Record (dpeaa)DE-He213 Daily Solar Radiation (dpeaa)DE-He213 Reference Crop Evapotranspiration (dpeaa)DE-He213 Kjelgaard, Jim aut Bellocchi, Gianni aut Enthalten in Irrigation science Berlin : Springer, 1978 23(2004), 1 vom: 26. Feb., Seite 39-46 (DE-627)271175362 (DE-600)1478936-X 1432-1319 nnns volume:23 year:2004 number:1 day:26 month:02 pages:39-46 https://dx.doi.org/10.1007/s00271-004-0091-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 23 2004 1 26 02 39-46 |
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10.1007/s00271-004-0091-0 doi (DE-627)SPR003536882 (SPR)s00271-004-0091-0-e DE-627 ger DE-627 rakwb eng Stöckle, Claudio O. verfasserin aut Evaluation of estimated weather data for calculating Penman-Monteith reference crop evapotranspiration 2004 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag 2004 Abstract Utilizing the weather generator ClimGen, daily solar radiation (Rs) and vapor pressure deficit (VPD) were estimated from temperature data and used to calculate evapotranspiration at five locations, representing tropical, temperate, semi-arid, and arid climates. ClimGen was calibrated for each location using the most recent 2 or 5 years of complete daily weather records. Actual and estimated values were compared on a daily and weekly (7-day running average) basis. Error indices were defined to indicate excellent to poor performance of the estimation methods. Overall in all locations, the ClimGen estimates for both daily Rs and VPD were poor to acceptable. The weekly analyses showed significant improvement in performance for both Rs and VPD estimations in arid and semi-arid locations. Daily reference crop evapotranspiration values using the FAO Penman-Monteith equation (PM $ ET_{o} $) were calculated using complete daily weather records. These values were compared with (1) $ ET_{o} $ calculated with the PM model, actual temperature data, and ClimGen estimates of daily Rs, VPD, and generated wind speed ($ PM_{Est} $ $ ET_{o} $), and (2) $ ET_{o} $ calculated solely from actual daily temperature data using a calibrated version of the Hargreaves method ($ HG_{Adj} $ $ ET_{o} $). The daily $ PM_{Est} $ $ ET_{o} $ results were poor to acceptable in all locations, but analyses for weekly periods showed improved performance to acceptable and good levels for arid and semi-arid locations. The performance of the $ HG_{Adj} $ $ ET_{o} $ method was also poor to acceptable for daily ET estimates in all locations, while weekly analyses showed improvement. A non-calibrated version of the Hargreaves method did not work for either daily or weekly periods. The $ PM_{Est} $ $ ET_{o} $ and $ HG_{adj} $ $ ET_{o} $ methods appeared suitable for weekly periods in arid and semi-arid locations provided that at least 2 years of complete weather records were available to calibrate the parameters required. There was no advantage in using 5 years of weather records for calibration. Root Mean Square Error (dpeaa)DE-He213 Vapor Pressure Deficit (dpeaa)DE-He213 Weather Record (dpeaa)DE-He213 Daily Solar Radiation (dpeaa)DE-He213 Reference Crop Evapotranspiration (dpeaa)DE-He213 Kjelgaard, Jim aut Bellocchi, Gianni aut Enthalten in Irrigation science Berlin : Springer, 1978 23(2004), 1 vom: 26. Feb., Seite 39-46 (DE-627)271175362 (DE-600)1478936-X 1432-1319 nnns volume:23 year:2004 number:1 day:26 month:02 pages:39-46 https://dx.doi.org/10.1007/s00271-004-0091-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 23 2004 1 26 02 39-46 |
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10.1007/s00271-004-0091-0 doi (DE-627)SPR003536882 (SPR)s00271-004-0091-0-e DE-627 ger DE-627 rakwb eng Stöckle, Claudio O. verfasserin aut Evaluation of estimated weather data for calculating Penman-Monteith reference crop evapotranspiration 2004 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag 2004 Abstract Utilizing the weather generator ClimGen, daily solar radiation (Rs) and vapor pressure deficit (VPD) were estimated from temperature data and used to calculate evapotranspiration at five locations, representing tropical, temperate, semi-arid, and arid climates. ClimGen was calibrated for each location using the most recent 2 or 5 years of complete daily weather records. Actual and estimated values were compared on a daily and weekly (7-day running average) basis. Error indices were defined to indicate excellent to poor performance of the estimation methods. Overall in all locations, the ClimGen estimates for both daily Rs and VPD were poor to acceptable. The weekly analyses showed significant improvement in performance for both Rs and VPD estimations in arid and semi-arid locations. Daily reference crop evapotranspiration values using the FAO Penman-Monteith equation (PM $ ET_{o} $) were calculated using complete daily weather records. These values were compared with (1) $ ET_{o} $ calculated with the PM model, actual temperature data, and ClimGen estimates of daily Rs, VPD, and generated wind speed ($ PM_{Est} $ $ ET_{o} $), and (2) $ ET_{o} $ calculated solely from actual daily temperature data using a calibrated version of the Hargreaves method ($ HG_{Adj} $ $ ET_{o} $). The daily $ PM_{Est} $ $ ET_{o} $ results were poor to acceptable in all locations, but analyses for weekly periods showed improved performance to acceptable and good levels for arid and semi-arid locations. The performance of the $ HG_{Adj} $ $ ET_{o} $ method was also poor to acceptable for daily ET estimates in all locations, while weekly analyses showed improvement. A non-calibrated version of the Hargreaves method did not work for either daily or weekly periods. The $ PM_{Est} $ $ ET_{o} $ and $ HG_{adj} $ $ ET_{o} $ methods appeared suitable for weekly periods in arid and semi-arid locations provided that at least 2 years of complete weather records were available to calibrate the parameters required. There was no advantage in using 5 years of weather records for calibration. Root Mean Square Error (dpeaa)DE-He213 Vapor Pressure Deficit (dpeaa)DE-He213 Weather Record (dpeaa)DE-He213 Daily Solar Radiation (dpeaa)DE-He213 Reference Crop Evapotranspiration (dpeaa)DE-He213 Kjelgaard, Jim aut Bellocchi, Gianni aut Enthalten in Irrigation science Berlin : Springer, 1978 23(2004), 1 vom: 26. Feb., Seite 39-46 (DE-627)271175362 (DE-600)1478936-X 1432-1319 nnns volume:23 year:2004 number:1 day:26 month:02 pages:39-46 https://dx.doi.org/10.1007/s00271-004-0091-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 23 2004 1 26 02 39-46 |
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10.1007/s00271-004-0091-0 doi (DE-627)SPR003536882 (SPR)s00271-004-0091-0-e DE-627 ger DE-627 rakwb eng Stöckle, Claudio O. verfasserin aut Evaluation of estimated weather data for calculating Penman-Monteith reference crop evapotranspiration 2004 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © Springer-Verlag 2004 Abstract Utilizing the weather generator ClimGen, daily solar radiation (Rs) and vapor pressure deficit (VPD) were estimated from temperature data and used to calculate evapotranspiration at five locations, representing tropical, temperate, semi-arid, and arid climates. ClimGen was calibrated for each location using the most recent 2 or 5 years of complete daily weather records. Actual and estimated values were compared on a daily and weekly (7-day running average) basis. Error indices were defined to indicate excellent to poor performance of the estimation methods. Overall in all locations, the ClimGen estimates for both daily Rs and VPD were poor to acceptable. The weekly analyses showed significant improvement in performance for both Rs and VPD estimations in arid and semi-arid locations. Daily reference crop evapotranspiration values using the FAO Penman-Monteith equation (PM $ ET_{o} $) were calculated using complete daily weather records. These values were compared with (1) $ ET_{o} $ calculated with the PM model, actual temperature data, and ClimGen estimates of daily Rs, VPD, and generated wind speed ($ PM_{Est} $ $ ET_{o} $), and (2) $ ET_{o} $ calculated solely from actual daily temperature data using a calibrated version of the Hargreaves method ($ HG_{Adj} $ $ ET_{o} $). The daily $ PM_{Est} $ $ ET_{o} $ results were poor to acceptable in all locations, but analyses for weekly periods showed improved performance to acceptable and good levels for arid and semi-arid locations. The performance of the $ HG_{Adj} $ $ ET_{o} $ method was also poor to acceptable for daily ET estimates in all locations, while weekly analyses showed improvement. A non-calibrated version of the Hargreaves method did not work for either daily or weekly periods. The $ PM_{Est} $ $ ET_{o} $ and $ HG_{adj} $ $ ET_{o} $ methods appeared suitable for weekly periods in arid and semi-arid locations provided that at least 2 years of complete weather records were available to calibrate the parameters required. There was no advantage in using 5 years of weather records for calibration. Root Mean Square Error (dpeaa)DE-He213 Vapor Pressure Deficit (dpeaa)DE-He213 Weather Record (dpeaa)DE-He213 Daily Solar Radiation (dpeaa)DE-He213 Reference Crop Evapotranspiration (dpeaa)DE-He213 Kjelgaard, Jim aut Bellocchi, Gianni aut Enthalten in Irrigation science Berlin : Springer, 1978 23(2004), 1 vom: 26. Feb., Seite 39-46 (DE-627)271175362 (DE-600)1478936-X 1432-1319 nnns volume:23 year:2004 number:1 day:26 month:02 pages:39-46 https://dx.doi.org/10.1007/s00271-004-0091-0 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_120 GBV_ILN_138 GBV_ILN_150 GBV_ILN_151 GBV_ILN_152 GBV_ILN_161 GBV_ILN_170 GBV_ILN_171 GBV_ILN_187 GBV_ILN_206 GBV_ILN_213 GBV_ILN_224 GBV_ILN_230 GBV_ILN_250 GBV_ILN_267 GBV_ILN_281 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_636 GBV_ILN_702 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2031 GBV_ILN_2034 GBV_ILN_2037 GBV_ILN_2038 GBV_ILN_2039 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2056 GBV_ILN_2057 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2070 GBV_ILN_2086 GBV_ILN_2088 GBV_ILN_2093 GBV_ILN_2106 GBV_ILN_2107 GBV_ILN_2108 GBV_ILN_2110 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2116 GBV_ILN_2118 GBV_ILN_2119 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2144 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2188 GBV_ILN_2190 GBV_ILN_2232 GBV_ILN_2336 GBV_ILN_2446 GBV_ILN_2470 GBV_ILN_2472 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_2548 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4246 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4336 GBV_ILN_4338 GBV_ILN_4393 GBV_ILN_4700 AR 23 2004 1 26 02 39-46 |
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English |
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Enthalten in Irrigation science 23(2004), 1 vom: 26. Feb., Seite 39-46 volume:23 year:2004 number:1 day:26 month:02 pages:39-46 |
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Enthalten in Irrigation science 23(2004), 1 vom: 26. Feb., Seite 39-46 volume:23 year:2004 number:1 day:26 month:02 pages:39-46 |
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Root Mean Square Error Vapor Pressure Deficit Weather Record Daily Solar Radiation Reference Crop Evapotranspiration |
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Stöckle, Claudio O. @@aut@@ Kjelgaard, Jim @@aut@@ Bellocchi, Gianni @@aut@@ |
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2004-02-26T00:00:00Z |
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ClimGen was calibrated for each location using the most recent 2 or 5 years of complete daily weather records. Actual and estimated values were compared on a daily and weekly (7-day running average) basis. Error indices were defined to indicate excellent to poor performance of the estimation methods. Overall in all locations, the ClimGen estimates for both daily Rs and VPD were poor to acceptable. The weekly analyses showed significant improvement in performance for both Rs and VPD estimations in arid and semi-arid locations. Daily reference crop evapotranspiration values using the FAO Penman-Monteith equation (PM $ ET_{o} $) were calculated using complete daily weather records. These values were compared with (1) $ ET_{o} $ calculated with the PM model, actual temperature data, and ClimGen estimates of daily Rs, VPD, and generated wind speed ($ PM_{Est} $ $ ET_{o} $), and (2) $ ET_{o} $ calculated solely from actual daily temperature data using a calibrated version of the Hargreaves method ($ HG_{Adj} $ $ ET_{o} $). The daily $ PM_{Est} $ $ ET_{o} $ results were poor to acceptable in all locations, but analyses for weekly periods showed improved performance to acceptable and good levels for arid and semi-arid locations. The performance of the $ HG_{Adj} $ $ ET_{o} $ method was also poor to acceptable for daily ET estimates in all locations, while weekly analyses showed improvement. A non-calibrated version of the Hargreaves method did not work for either daily or weekly periods. The $ PM_{Est} $ $ ET_{o} $ and $ HG_{adj} $ $ ET_{o} $ methods appeared suitable for weekly periods in arid and semi-arid locations provided that at least 2 years of complete weather records were available to calibrate the parameters required. 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Stöckle, Claudio O. |
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Stöckle, Claudio O. misc Root Mean Square Error misc Vapor Pressure Deficit misc Weather Record misc Daily Solar Radiation misc Reference Crop Evapotranspiration Evaluation of estimated weather data for calculating Penman-Monteith reference crop evapotranspiration |
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Evaluation of estimated weather data for calculating Penman-Monteith reference crop evapotranspiration Root Mean Square Error (dpeaa)DE-He213 Vapor Pressure Deficit (dpeaa)DE-He213 Weather Record (dpeaa)DE-He213 Daily Solar Radiation (dpeaa)DE-He213 Reference Crop Evapotranspiration (dpeaa)DE-He213 |
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misc Root Mean Square Error misc Vapor Pressure Deficit misc Weather Record misc Daily Solar Radiation misc Reference Crop Evapotranspiration |
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misc Root Mean Square Error misc Vapor Pressure Deficit misc Weather Record misc Daily Solar Radiation misc Reference Crop Evapotranspiration |
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Elektronische Aufsätze Aufsätze Elektronische Ressource |
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Evaluation of estimated weather data for calculating Penman-Monteith reference crop evapotranspiration |
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Evaluation of estimated weather data for calculating Penman-Monteith reference crop evapotranspiration |
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Stöckle, Claudio O. |
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Irrigation science |
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Stöckle, Claudio O. Kjelgaard, Jim Bellocchi, Gianni |
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Stöckle, Claudio O. |
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10.1007/s00271-004-0091-0 |
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evaluation of estimated weather data for calculating penman-monteith reference crop evapotranspiration |
| title_auth |
Evaluation of estimated weather data for calculating Penman-Monteith reference crop evapotranspiration |
| abstract |
Abstract Utilizing the weather generator ClimGen, daily solar radiation (Rs) and vapor pressure deficit (VPD) were estimated from temperature data and used to calculate evapotranspiration at five locations, representing tropical, temperate, semi-arid, and arid climates. ClimGen was calibrated for each location using the most recent 2 or 5 years of complete daily weather records. Actual and estimated values were compared on a daily and weekly (7-day running average) basis. Error indices were defined to indicate excellent to poor performance of the estimation methods. Overall in all locations, the ClimGen estimates for both daily Rs and VPD were poor to acceptable. The weekly analyses showed significant improvement in performance for both Rs and VPD estimations in arid and semi-arid locations. Daily reference crop evapotranspiration values using the FAO Penman-Monteith equation (PM $ ET_{o} $) were calculated using complete daily weather records. These values were compared with (1) $ ET_{o} $ calculated with the PM model, actual temperature data, and ClimGen estimates of daily Rs, VPD, and generated wind speed ($ PM_{Est} $ $ ET_{o} $), and (2) $ ET_{o} $ calculated solely from actual daily temperature data using a calibrated version of the Hargreaves method ($ HG_{Adj} $ $ ET_{o} $). The daily $ PM_{Est} $ $ ET_{o} $ results were poor to acceptable in all locations, but analyses for weekly periods showed improved performance to acceptable and good levels for arid and semi-arid locations. The performance of the $ HG_{Adj} $ $ ET_{o} $ method was also poor to acceptable for daily ET estimates in all locations, while weekly analyses showed improvement. A non-calibrated version of the Hargreaves method did not work for either daily or weekly periods. The $ PM_{Est} $ $ ET_{o} $ and $ HG_{adj} $ $ ET_{o} $ methods appeared suitable for weekly periods in arid and semi-arid locations provided that at least 2 years of complete weather records were available to calibrate the parameters required. There was no advantage in using 5 years of weather records for calibration. © Springer-Verlag 2004 |
| abstractGer |
Abstract Utilizing the weather generator ClimGen, daily solar radiation (Rs) and vapor pressure deficit (VPD) were estimated from temperature data and used to calculate evapotranspiration at five locations, representing tropical, temperate, semi-arid, and arid climates. ClimGen was calibrated for each location using the most recent 2 or 5 years of complete daily weather records. Actual and estimated values were compared on a daily and weekly (7-day running average) basis. Error indices were defined to indicate excellent to poor performance of the estimation methods. Overall in all locations, the ClimGen estimates for both daily Rs and VPD were poor to acceptable. The weekly analyses showed significant improvement in performance for both Rs and VPD estimations in arid and semi-arid locations. Daily reference crop evapotranspiration values using the FAO Penman-Monteith equation (PM $ ET_{o} $) were calculated using complete daily weather records. These values were compared with (1) $ ET_{o} $ calculated with the PM model, actual temperature data, and ClimGen estimates of daily Rs, VPD, and generated wind speed ($ PM_{Est} $ $ ET_{o} $), and (2) $ ET_{o} $ calculated solely from actual daily temperature data using a calibrated version of the Hargreaves method ($ HG_{Adj} $ $ ET_{o} $). The daily $ PM_{Est} $ $ ET_{o} $ results were poor to acceptable in all locations, but analyses for weekly periods showed improved performance to acceptable and good levels for arid and semi-arid locations. The performance of the $ HG_{Adj} $ $ ET_{o} $ method was also poor to acceptable for daily ET estimates in all locations, while weekly analyses showed improvement. A non-calibrated version of the Hargreaves method did not work for either daily or weekly periods. The $ PM_{Est} $ $ ET_{o} $ and $ HG_{adj} $ $ ET_{o} $ methods appeared suitable for weekly periods in arid and semi-arid locations provided that at least 2 years of complete weather records were available to calibrate the parameters required. There was no advantage in using 5 years of weather records for calibration. © Springer-Verlag 2004 |
| abstract_unstemmed |
Abstract Utilizing the weather generator ClimGen, daily solar radiation (Rs) and vapor pressure deficit (VPD) were estimated from temperature data and used to calculate evapotranspiration at five locations, representing tropical, temperate, semi-arid, and arid climates. ClimGen was calibrated for each location using the most recent 2 or 5 years of complete daily weather records. Actual and estimated values were compared on a daily and weekly (7-day running average) basis. Error indices were defined to indicate excellent to poor performance of the estimation methods. Overall in all locations, the ClimGen estimates for both daily Rs and VPD were poor to acceptable. The weekly analyses showed significant improvement in performance for both Rs and VPD estimations in arid and semi-arid locations. Daily reference crop evapotranspiration values using the FAO Penman-Monteith equation (PM $ ET_{o} $) were calculated using complete daily weather records. These values were compared with (1) $ ET_{o} $ calculated with the PM model, actual temperature data, and ClimGen estimates of daily Rs, VPD, and generated wind speed ($ PM_{Est} $ $ ET_{o} $), and (2) $ ET_{o} $ calculated solely from actual daily temperature data using a calibrated version of the Hargreaves method ($ HG_{Adj} $ $ ET_{o} $). The daily $ PM_{Est} $ $ ET_{o} $ results were poor to acceptable in all locations, but analyses for weekly periods showed improved performance to acceptable and good levels for arid and semi-arid locations. The performance of the $ HG_{Adj} $ $ ET_{o} $ method was also poor to acceptable for daily ET estimates in all locations, while weekly analyses showed improvement. A non-calibrated version of the Hargreaves method did not work for either daily or weekly periods. The $ PM_{Est} $ $ ET_{o} $ and $ HG_{adj} $ $ ET_{o} $ methods appeared suitable for weekly periods in arid and semi-arid locations provided that at least 2 years of complete weather records were available to calibrate the parameters required. There was no advantage in using 5 years of weather records for calibration. © Springer-Verlag 2004 |
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| title_short |
Evaluation of estimated weather data for calculating Penman-Monteith reference crop evapotranspiration |
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https://dx.doi.org/10.1007/s00271-004-0091-0 |
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Kjelgaard, Jim Bellocchi, Gianni |
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| doi_str |
10.1007/s00271-004-0091-0 |
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| score |
7.397897 |