Evaluation of the evaporative fraction for parameterization of the surface energy balance
The evaporative fraction is a ratio of latent heat flux to the sum of latent and sensible heat fluxes. It has been used to characterize the energy partition over land surfaces and has potential for inferring daily energy balance information based on midday remote sensing measurements. The HAPEX‐MOBI...
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| Veröffentlicht in: | Water resources research 1993-11, Vol.29 (11), p.3681-3690 |
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| container_title | Water resources research |
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| creator | Nichols, William E. Cuenca, Richard H. |
| description | The evaporative fraction is a ratio of latent heat flux to the sum of latent and sensible heat fluxes. It has been used to characterize the energy partition over land surfaces and has potential for inferring daily energy balance information based on midday remote sensing measurements. The HAPEX‐MOBILHY program SAMER system provided surface energy balance data over a range of agricultural crops and soil types. Data from this large‐scale field experiment was analyzed to study the behavior and daylight stability of the evaporative fraction in both ideal and general meteorological conditions. Strong linear relations were found to exist between the midday evaporative fraction and the daylight evaporative fraction. Statistical tests, however, rejected the hypothesis that the two quantities were equal. Relations between the evaporative fraction and surface soil moisture as well as soil moisture over the complete root zone were explored, but no correlation was identified. |
| doi_str_mv | 10.1029/93WR01958 |
| format | Article |
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It has been used to characterize the energy partition over land surfaces and has potential for inferring daily energy balance information based on midday remote sensing measurements. The HAPEX‐MOBILHY program SAMER system provided surface energy balance data over a range of agricultural crops and soil types. Data from this large‐scale field experiment was analyzed to study the behavior and daylight stability of the evaporative fraction in both ideal and general meteorological conditions. Strong linear relations were found to exist between the midday evaporative fraction and the daylight evaporative fraction. Statistical tests, however, rejected the hypothesis that the two quantities were equal. Relations between the evaporative fraction and surface soil moisture as well as soil moisture over the complete root zone were explored, but no correlation was identified.</description><identifier>ISSN: 0043-1397</identifier><identifier>EISSN: 1944-7973</identifier><identifier>DOI: 10.1029/93WR01958</identifier><language>eng</language><publisher>United States: Blackwell Publishing Ltd</publisher><subject>540110 ; 540210 - Environment, Terrestrial- Basic Studies- (1990-) ; AIR-BIOSPHERE INTERACTIONS ; DAILY VARIATIONS ; ENERGY ; ENERGY BALANCE ; ENVIRONMENTAL SCIENCES ; FREE ENERGY ; HEAT FLUX ; MATHEMATICAL MODELS ; MULTI-PARAMETER ANALYSIS ; PHYSICAL PROPERTIES ; REMOTE SENSING ; SOILS ; SURFACE ENERGY ; SURFACE PROPERTIES ; THERMODYNAMIC PROPERTIES ; VARIATIONS</subject><ispartof>Water resources research, 1993-11, Vol.29 (11), p.3681-3690</ispartof><rights>Copyright 1993 by the American Geophysical Union.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3940-c905a6b12daa5d1e0b7be1b52ee4ab456796d4e5cc46b5f47262fd64bc8902fb3</citedby><cites>FETCH-LOGICAL-c3940-c905a6b12daa5d1e0b7be1b52ee4ab456796d4e5cc46b5f47262fd64bc8902fb3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1029%2F93WR01958$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1029%2F93WR01958$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>230,314,776,780,881,1411,27901,27902,45550,45551</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/7183730$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Nichols, William E.</creatorcontrib><creatorcontrib>Cuenca, Richard H.</creatorcontrib><title>Evaluation of the evaporative fraction for parameterization of the surface energy balance</title><title>Water resources research</title><addtitle>Water Resour. 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Relations between the evaporative fraction and surface soil moisture as well as soil moisture over the complete root zone were explored, but no correlation was identified.</description><subject>540110</subject><subject>540210 - Environment, Terrestrial- Basic Studies- (1990-)</subject><subject>AIR-BIOSPHERE INTERACTIONS</subject><subject>DAILY VARIATIONS</subject><subject>ENERGY</subject><subject>ENERGY BALANCE</subject><subject>ENVIRONMENTAL SCIENCES</subject><subject>FREE ENERGY</subject><subject>HEAT FLUX</subject><subject>MATHEMATICAL MODELS</subject><subject>MULTI-PARAMETER ANALYSIS</subject><subject>PHYSICAL PROPERTIES</subject><subject>REMOTE SENSING</subject><subject>SOILS</subject><subject>SURFACE ENERGY</subject><subject>SURFACE PROPERTIES</subject><subject>THERMODYNAMIC PROPERTIES</subject><subject>VARIATIONS</subject><issn>0043-1397</issn><issn>1944-7973</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1993</creationdate><recordtype>article</recordtype><recordid>eNqFkU1LAzEQhoMoWKsH_8HiQfCwmmyyyeYoxS-oClWpnkKSTnR1u6nJtlp_vVtXBA_iaWDmeYYXXoR2CT4kOJNHko5HmMi8WEM9IhlLhRR0HfUwZjQlVIpNtBXjM8aE5Vz00MPJQldz3ZS-TrxLmidIYKFnPrSrBSQuaPt1cz4kMx30FBoI5ccvIc6D07YVawiPy8ToStcWttGG01WEne_ZR3enJ7eD83R4fXYxOB6mlkqGUytxrrkh2UTrfEIAG2GAmDwDYNqsQko-YZBby7jJHRMZz9yEM2MLiTNnaB_tdX99bEoVbdmAfbK-rsE2SpCCCopbaL-DZsG_ziE2alpGC1WbFPw8KlJkBBNK_gcpF5lgogUPOtAGH2MAp2ahnOqwVASrVRXqp4qWPerYt7KC5d-gGo8GI07xKm_aGWVs4P3H0OFFcUFFrsZXZ2pwf3lziotLdU4_AZx4mZA</recordid><startdate>199311</startdate><enddate>199311</enddate><creator>Nichols, William E.</creator><creator>Cuenca, Richard H.</creator><general>Blackwell Publishing Ltd</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7TG</scope><scope>KL.</scope><scope>OTOTI</scope></search><sort><creationdate>199311</creationdate><title>Evaluation of the evaporative fraction for parameterization of the surface energy balance</title><author>Nichols, William E. ; Cuenca, Richard H.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3940-c905a6b12daa5d1e0b7be1b52ee4ab456796d4e5cc46b5f47262fd64bc8902fb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1993</creationdate><topic>540110</topic><topic>540210 - Environment, Terrestrial- Basic Studies- (1990-)</topic><topic>AIR-BIOSPHERE INTERACTIONS</topic><topic>DAILY VARIATIONS</topic><topic>ENERGY</topic><topic>ENERGY BALANCE</topic><topic>ENVIRONMENTAL SCIENCES</topic><topic>FREE ENERGY</topic><topic>HEAT FLUX</topic><topic>MATHEMATICAL MODELS</topic><topic>MULTI-PARAMETER ANALYSIS</topic><topic>PHYSICAL PROPERTIES</topic><topic>REMOTE SENSING</topic><topic>SOILS</topic><topic>SURFACE ENERGY</topic><topic>SURFACE PROPERTIES</topic><topic>THERMODYNAMIC PROPERTIES</topic><topic>VARIATIONS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nichols, William E.</creatorcontrib><creatorcontrib>Cuenca, Richard H.</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>OSTI.GOV</collection><jtitle>Water resources research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nichols, William E.</au><au>Cuenca, Richard H.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Evaluation of the evaporative fraction for parameterization of the surface energy balance</atitle><jtitle>Water resources research</jtitle><addtitle>Water Resour. Res</addtitle><date>1993-11</date><risdate>1993</risdate><volume>29</volume><issue>11</issue><spage>3681</spage><epage>3690</epage><pages>3681-3690</pages><issn>0043-1397</issn><eissn>1944-7973</eissn><abstract>The evaporative fraction is a ratio of latent heat flux to the sum of latent and sensible heat fluxes. It has been used to characterize the energy partition over land surfaces and has potential for inferring daily energy balance information based on midday remote sensing measurements. The HAPEX‐MOBILHY program SAMER system provided surface energy balance data over a range of agricultural crops and soil types. Data from this large‐scale field experiment was analyzed to study the behavior and daylight stability of the evaporative fraction in both ideal and general meteorological conditions. Strong linear relations were found to exist between the midday evaporative fraction and the daylight evaporative fraction. Statistical tests, however, rejected the hypothesis that the two quantities were equal. Relations between the evaporative fraction and surface soil moisture as well as soil moisture over the complete root zone were explored, but no correlation was identified.</abstract><cop>United States</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1029/93WR01958</doi><tpages>10</tpages></addata></record> |
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| identifier | ISSN: 0043-1397 |
| ispartof | Water resources research, 1993-11, Vol.29 (11), p.3681-3690 |
| issn | 0043-1397 1944-7973 |
| language | eng |
| recordid | cdi_osti_scitechconnect_7183730 |
| source | Wiley Online Library Journals Frontfile Complete |
| subjects | 540110 540210 - Environment, Terrestrial- Basic Studies- (1990-) AIR-BIOSPHERE INTERACTIONS DAILY VARIATIONS ENERGY ENERGY BALANCE ENVIRONMENTAL SCIENCES FREE ENERGY HEAT FLUX MATHEMATICAL MODELS MULTI-PARAMETER ANALYSIS PHYSICAL PROPERTIES REMOTE SENSING SOILS SURFACE ENERGY SURFACE PROPERTIES THERMODYNAMIC PROPERTIES VARIATIONS |
| title | Evaluation of the evaporative fraction for parameterization of the surface energy balance |
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