多种蒸散发公式在珠江流域的适用性分析
, PP. 737-745
Keywords: 蒸散发,penman-monteith公式,计算精度,珠江流域
Abstract:
?利用珠江流域42个观测站点的逐日气象数据对比分析了fao56penman-monteith(pm)、priestley-taylor、hargreaves-samani和thornthwaite等4种蒸散发公式在珠江流域的适用性,并研究了在资料有限情况下pm公式的计算精度。pm公式由于详细考虑了空气动力与能量供给对蒸散发的影响,其在不同季节和地区的计算结果都较为稳定,并且与实际的观测接近,最适用于珠江流域的蒸散发计算。在蒸散发的计算中,日照时数的缺测对pm公式计算精度的影响最大,风速次之。通过设定修正系数后的pmt公式,计算精度得到了明显提高,在一定程度上可以满足对蒸散发计算的精度要求。因此,在其他资料缺失的情况下,只利用气温数据计算的pmt公式可成为一种理想的蒸散发计算公式。
References
[1] | roderickml,hobbinsmt,farquhargd.panevaporationtrendsandtheterrestrialwaterbalance.i.energybalanceandinterpretation[j].geographycompass,2009,3(2):746-760.
|
[2] | roderickml,hobbinsmt,farquhargd.panevaporationtrendsandtheterrestrialwaterbalance.ii.energybalanceandinterpretation[j].geographycompass,2009,3(2):761-780.
|
[3] | 宋晓猛,张建云,占车生,等.气候变化和人类活动对水文循环影响研究进展[j].水利学报,2013,44(7):779-790.
|
[4] | zhangq,xucy,chenxh,etal.statisticalbehaviorsofprecipitationregimesinchinaandtheirlinkswithatmosphericcirculation1960-2005[j].internationaljournalofclimatology,2011,31(11):1665-1678.
|
[5] | 徐宗学.水文模型[m].北京:科学出版社,2009.
|
[6] | xucy,singhvp.evaluationandgeneralizationofradiation-based
|
[7] | methodsforcalculatingevaporation[j].hydrologicalprocesses,2000,14:339-349.
|
[8] | xucy,singhvp.evaluationandgeneralizationoftemperature-basedmethodsforcalculatingevaporation[j].hydrologicalprocesses,2001,15:305-319.
|
[9] | allenrg,pereirals,raesd,etal.cropevapotranspiration-guidelinesforcomputingcropwaterrequirements-faoirrigationanddrainagepaperno.56[m].rome:foodandagricultureorganizationoftheunitednations,1998.
|
[10] | 李斌,李丽娟,覃驭楚,等.澜沧江流域潜在蒸散发敏感性分析[j].资源科学,2011,33(7):1256-1263.
|
[11] | 李红霞,张永强,张新华,等.遥感penman-monteith模型对区域蒸散发的估算[j].武汉大学大学:工学版,2011,44(8):457-461.
|
[12] | zuodp,xuzx,yangh,etal.spatiotemporalvariationsandabruptchangesofpotentialevapotranspirationanditssensitivitytokeymeteorologicalvariablesintheweiriverbasin,china[j].hydrologicalprocesses,2012,26:1149-1160.
|
[13] | todorovicm,karicb,pereirals.referenceevapotranspirationestimatewithlimitedweatherdataacrossarangeofmediterraneanclimates[j].journalofhydrology,2013,481:166-176.
|
[14] | valiantzasjd.simplifiedreferenceevapotranspirationformulausinganempiricalimpactfactorforpenman’saerodynamicterm[j].journalofhydrologicengineering,2013,18(1):108-114.
|
[15] | priestleychb,taylorrj.ontheassessmentofthesurfaceheatfluxandevaporationusinglarge-scaleparameters[j].monthlyweatherreview,1972,100:81-92.
|
[16] | hargreavesgh,samaniza.referencecropevapotranspirationfromtemperature[j].appliedengineeringinagriculture,1985,1(2):96-109.
|
[17] | thornthwaitecw.anapproachtowardarationalclassificationofclimate[j].geographicalreview,1948,38(1):55-94.
|
[18] | 曾燕,邱新法,刘昌明,等.1960-2000年中国蒸发皿蒸发量的气候变化特征[j].水科学进展,2007,18(3):311-318.
|
Full-Text