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Article: An empirical method for approximating canopy throughfall

TitleAn empirical method for approximating canopy throughfall
Authors
KeywordsCanopy Storage
Ecohydrology
Interception
Mass Balance
Potential Evapotranspiration
Throughfall
Issue Date2013
PublisherJohn Wiley & Sons Ltd. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/4125
Citation
Hydrological Processes, 2013, v. 27 n. 12, p. 1764-1772 How to Cite?
AbstractRainfall replenishes surface and subsurface water but is partially intercepted by a canopy. However, it is challenging to quantify the rainfall passing through the canopy (i.e. throughfall). This study derives simple-to-use empirical equations relating throughfall to canopy and rainfall characteristics. Monthly throughfall is calculated by applying a mass balance model on weather data from Singapore; Vancouver, Canada; and Stanford, USA. Regression analysis is then performed on the calculated throughfall with three dependent variables (i.e. maximum canopy storage, average rainfall depth and time interval between two consecutive rainfall in a month) to derive the empirical equations. One local equation is derived for each location using data from that particular location, and one global equation is derived using data from all three locations. The equations are further verified with calculated monthly throughfall from other weather data and actual throughfall field measurements, giving an accuracy of about 80-90%. The global equation is relatively less accurate but is applicable worldwide. Overall, this study provides a global equation through which one can quickly estimate throughfall with only information on the three variables. When additional weather data are available, one can follow the proposed methodology to derive their own equations for better estimates. © 2012 John Wiley & Sons, Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/180444
ISSN
2015 Impact Factor: 2.768
2015 SCImago Journal Rankings: 1.419
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorTrinh, DHen_US
dc.contributor.authorChui, TFMen_US
dc.date.accessioned2013-01-28T01:37:58Z-
dc.date.available2013-01-28T01:37:58Z-
dc.date.issued2013en_US
dc.identifier.citationHydrological Processes, 2013, v. 27 n. 12, p. 1764-1772en_US
dc.identifier.issn0885-6087en_US
dc.identifier.urihttp://hdl.handle.net/10722/180444-
dc.description.abstractRainfall replenishes surface and subsurface water but is partially intercepted by a canopy. However, it is challenging to quantify the rainfall passing through the canopy (i.e. throughfall). This study derives simple-to-use empirical equations relating throughfall to canopy and rainfall characteristics. Monthly throughfall is calculated by applying a mass balance model on weather data from Singapore; Vancouver, Canada; and Stanford, USA. Regression analysis is then performed on the calculated throughfall with three dependent variables (i.e. maximum canopy storage, average rainfall depth and time interval between two consecutive rainfall in a month) to derive the empirical equations. One local equation is derived for each location using data from that particular location, and one global equation is derived using data from all three locations. The equations are further verified with calculated monthly throughfall from other weather data and actual throughfall field measurements, giving an accuracy of about 80-90%. The global equation is relatively less accurate but is applicable worldwide. Overall, this study provides a global equation through which one can quickly estimate throughfall with only information on the three variables. When additional weather data are available, one can follow the proposed methodology to derive their own equations for better estimates. © 2012 John Wiley & Sons, Ltd.en_US
dc.languageengen_US
dc.publisherJohn Wiley & Sons Ltd. The Journal's web site is located at http://www3.interscience.wiley.com/cgi-bin/jhome/4125en_US
dc.relation.ispartofHydrological Processesen_US
dc.subjectCanopy Storageen_US
dc.subjectEcohydrologyen_US
dc.subjectInterceptionen_US
dc.subjectMass Balanceen_US
dc.subjectPotential Evapotranspirationen_US
dc.subjectThroughfallen_US
dc.titleAn empirical method for approximating canopy throughfallen_US
dc.typeArticleen_US
dc.identifier.emailChui, TFM: maychui@hku.hken_US
dc.identifier.authorityChui, TFM=rp01696en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1002/hyp.9332en_US
dc.identifier.scopuseid_2-s2.0-84878648466en_US
dc.identifier.hkuros230995-
dc.identifier.isiWOS:000319879300008-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridTrinh, DH=55212893300en_US
dc.identifier.scopusauthoridChui, TFM=24723787700en_US

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