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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
06/11/1995 |
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Data da última atualização: |
06/11/1995 |
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Autoria: |
HILL, R. W.; BROCKWAY, C. E.; BURMAN, R. D.; ALLEN, L. N.; ROBISON, C. W. |
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Afiliação: |
University of Idaho; Utah State University; University of Wyoming; Utah Agricultural Experiment Station. |
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Título: |
Duty of water under the bear river compact: field verification of empirical methods for estimation depletion. |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
Logan: Utah Agricultural Experiment Station / Utah State University, 1989. |
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Páginas: |
66p. |
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Série: |
(Utah State University. Research Report, 125) |
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Idioma: |
Inglês |
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Conteúdo: |
A three state cooperative study was conducted from 1982 through 1987 by Utah State University and the Universities of Idaho and Wyoming for the Bear River Commission to help determine a duty of water under terms of the Bear River Compact. The primary focus was field research in the Upper and Middle Bear River Basin to determine consumptive use of high elevation irrigated meadows and to develop a methodology to estimate historical depletions. Three sites were selected for the field study; Hilliard Flat south of Evanston, Wyoming (elev. 7550 ft), north of Randolph, Utah (elev. 6280 ft), and north of Bear Lake near Montpelier, Idaho (elev. 5928 ft). Lysimeters were located in irrigated meadow at each of these sites and electronic weather stations were placed nearby. The major portion of the field work began in the spring of 1983. Seasonal crop water use for irrigated meadow varied from 15.8 to 32.5 inches among the three sites for 1984 through 1987 seasons. Crop water use from the lysimeters was used to calibrate empirical evapotranspiration (Et) equations. A modified Penman equation best matched measured Et values for the three sites across years when used with crop coefficients derived for those sites. There was more variation across sites or between years with other empirical methods, such as SCS Blaney-Criddle equation. Sufficient data from the electronic weather stations for using the Penman equation were available only for the 1982-1987 period. Thus, to complete the historical sub-basin depletion calculations, equations based on air temperature data could be considered. The modified Penman equation (Kimberly, Idaho, calibration) was used to determine monthly consumptive use values where sufficient data were available in the various subbasins; this was then used to calibrate the simpler empirical methods to estimate Et. Depletion was calculated as the water year less the sum of carry over soil moisture and effective summer precipitation. The SCS Blaney-Criddle equation, with calibrated crop coefficients and monthly temperature and precipitation data available from the NWS weather stations, was used to estimate Et and historical depletions for each of the 10 subbasins for water years 1976-1987. MenosA three state cooperative study was conducted from 1982 through 1987 by Utah State University and the Universities of Idaho and Wyoming for the Bear River Commission to help determine a duty of water under terms of the Bear River Compact. The primary focus was field research in the Upper and Middle Bear River Basin to determine consumptive use of high elevation irrigated meadows and to develop a methodology to estimate historical depletions. Three sites were selected for the field study; Hilliard Flat south of Evanston, Wyoming (elev. 7550 ft), north of Randolph, Utah (elev. 6280 ft), and north of Bear Lake near Montpelier, Idaho (elev. 5928 ft). Lysimeters were located in irrigated meadow at each of these sites and electronic weather stations were placed nearby. The major portion of the field work began in the spring of 1983. Seasonal crop water use for irrigated meadow varied from 15.8 to 32.5 inches among the three sites for 1984 through 1987 seasons. Crop water use from the lysimeters was used to calibrate empirical evapotranspiration (Et) equations. A modified Penman equation best matched measured Et values for the three sites across years when used with crop coefficients derived for those sites. There was more variation across sites or between years with other empirical methods, such as SCS Blaney-Criddle equation. Sufficient data from the electronic weather stations for using the Penman equation were available only for the 1982-1987 period. Thus, to complete the histo... Mostrar Tudo |
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Palavras-Chave: |
Crop water use; Hidrology; Irrigated meadows; Plant; Recursos aquatico; River basin depletion; Water resource planning and management. |
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Thesagro: |
Água; Evapotranspiração; Hidrologia; Irrigação; Planta. |
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Thesaurus Nal: |
evapotranspiration; hydrologic data; irrigation; lysimeters; water. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 03341nam a2200385 a 4500
001 1786739
005 1995-11-06
008 1989 bl uuuu 00u1 u #d
100 1 $aHILL, R. W.
245 $aDuty of water under the bear river compact$bfield verification of empirical methods for estimation depletion.
260 $aLogan: Utah Agricultural Experiment Station / Utah State University$c1989
300 $a66p.
490 $a(Utah State University. Research Report, 125)
520 $aA three state cooperative study was conducted from 1982 through 1987 by Utah State University and the Universities of Idaho and Wyoming for the Bear River Commission to help determine a duty of water under terms of the Bear River Compact. The primary focus was field research in the Upper and Middle Bear River Basin to determine consumptive use of high elevation irrigated meadows and to develop a methodology to estimate historical depletions. Three sites were selected for the field study; Hilliard Flat south of Evanston, Wyoming (elev. 7550 ft), north of Randolph, Utah (elev. 6280 ft), and north of Bear Lake near Montpelier, Idaho (elev. 5928 ft). Lysimeters were located in irrigated meadow at each of these sites and electronic weather stations were placed nearby. The major portion of the field work began in the spring of 1983. Seasonal crop water use for irrigated meadow varied from 15.8 to 32.5 inches among the three sites for 1984 through 1987 seasons. Crop water use from the lysimeters was used to calibrate empirical evapotranspiration (Et) equations. A modified Penman equation best matched measured Et values for the three sites across years when used with crop coefficients derived for those sites. There was more variation across sites or between years with other empirical methods, such as SCS Blaney-Criddle equation. Sufficient data from the electronic weather stations for using the Penman equation were available only for the 1982-1987 period. Thus, to complete the historical sub-basin depletion calculations, equations based on air temperature data could be considered. The modified Penman equation (Kimberly, Idaho, calibration) was used to determine monthly consumptive use values where sufficient data were available in the various subbasins; this was then used to calibrate the simpler empirical methods to estimate Et. Depletion was calculated as the water year less the sum of carry over soil moisture and effective summer precipitation. The SCS Blaney-Criddle equation, with calibrated crop coefficients and monthly temperature and precipitation data available from the NWS weather stations, was used to estimate Et and historical depletions for each of the 10 subbasins for water years 1976-1987.
650 $aevapotranspiration
650 $ahydrologic data
650 $airrigation
650 $alysimeters
650 $awater
650 $aÁgua
650 $aEvapotranspiração
650 $aHidrologia
650 $aIrrigação
650 $aPlanta
653 $aCrop water use
653 $aHidrology
653 $aIrrigated meadows
653 $aPlant
653 $aRecursos aquatico
653 $aRiver basin depletion
653 $aWater resource planning and management
700 1 $aBROCKWAY, C. E.
700 1 $aBURMAN, R. D.
700 1 $aALLEN, L. N.
700 1 $aROBISON, C. W.
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Registro original: |
Embrapa Pantanal (CPAP) |
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Registro Completo
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
17/09/1999 |
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Data da última atualização: |
16/04/2014 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
HOEFLICH, V. A.; OLIVEIRA, E. B. de; LOURENCO, R. S.; OLIVEIRA, Y. M. M. de. |
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Afiliação: |
Pesquisadores da EMBRAPA-CNPF. |
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Título: |
Avaliacao de desempenho de pesquisadores do Centro Nacional de Pesquisa de Florestas - CNPlorestas. |
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Ano de publicação: |
1990 |
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Fonte/Imprenta: |
In: SIMPOSIO NACIONAL DE PESQUISA DE ADMINISTRACAO EM CIENCIA E TECNOLOGIA, 15., 1990, Sao Paulo. Anais. Sao Paulo: Pacto / IA / FEA / USP, 1990. |
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Páginas: |
19 p. |
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Idioma: |
Português |
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Palavras-Chave: |
Avaliacao de desempenho. |
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Thesagro: |
Instituição de Pesquisa. |
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Thesaurus NAL: |
research institutions. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/101152/1/Avaliacao-de-desempenho-de-pesquisadores-do-Centro-Nacional-de-Pesquisa-de-Florestas-CNPFlotestas-EMBRAPA.pdf
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Marc: |
LEADER 00701nam a2200181 a 4500
001 1303377
005 2014-04-16
008 1990 bl uuuu u00u1 u #d
100 1 $aHOEFLICH, V. A.
245 $aAvaliacao de desempenho de pesquisadores do Centro Nacional de Pesquisa de Florestas - CNPlorestas.$h[electronic resource]
260 $aIn: SIMPOSIO NACIONAL DE PESQUISA DE ADMINISTRACAO EM CIENCIA E TECNOLOGIA, 15., 1990, Sao Paulo. Anais. Sao Paulo: Pacto / IA / FEA / USP$c1990
300 $a19 p.
650 $aresearch institutions
650 $aInstituição de Pesquisa
653 $aAvaliacao de desempenho
700 1 $aOLIVEIRA, E. B. de
700 1 $aLOURENCO, R. S.
700 1 $aOLIVEIRA, Y. M. M. de
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Embrapa Florestas (CNPF) |
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