| 摘要: |
| 为评价Hamon潜在蒸散发模型在黄河流域的适用性，利用流域内64个气象站点的1965-2014年平均气温和日照时数等逐日气候要素资料，比较Hamon模型计算值与Penman-Monteith模型参考值之间的一致程度，结果表明：不改变Hamon模型常参数情况下，Hamon模型应用结果较差，其潜在蒸散发计算计算相对参考值明显偏小；重新率定Hamon模型参数后，取得良好的潜在蒸散发计算精度；且利用多年平均日照时数率定Hamon模型，结果表明模型效率系数得到进一步提升，说明Hamon模型在干旱半干旱去具有较好的应用效果和前景。 |
| 关键词: Hamon模型；潜在蒸散发；黄河流域 |
| DOI： |
| 分类号:TV11 |
| 基金项目:国家重点研发计划(2017YFC0404403, 2016YFA0601501)；国家自然科学(41330854, 51779144, 51679144)；中国工程院重大咨询项目(2015-ZD-07)联合资助。 |
|
| Application of Hamon potential evapotranspiration model in Yellow River Basin |
|
GuanXiaoxiang
|
|
Hohai University
|
| Abstract: |
| To evaluate the Hamon potential evaporation (PE) model in the Yellow River Basin, daily mean air temperature and sunshine hours climate data from 1965 to 2014 at 64 meteorological stations of the Yellow River basin are collected, monthly PE calculated by Hamon model are compared with that calculated by Penman-Monteith model as reference value, the results show that without changing the parameter of Hamon model, Hamon model’s performance is not well, the calculated PEs are relatively smaller that reference values. After Hamon model calibration with measured data, good calculation accuracy of PE is obtained. Furthermore, when using mean annual average sunshine duration together with daily air temperature to calibrate Hamon model, the results showed that the model's efficiency coefficient was further improved, indicating that Hamon model had better application effect and prospect in arid and semi-arid regions. |
| Key words: Hamon model; potential evapotranspiration; Yellow River Basin |
