On the proper employment of Piche evaporimeters in estimating evapotranspiration

✍ Scribed by Papaioannou, Georgia; Kaloudis, Spiros; Kerkides, Petros

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 203 KB
• Volume: 18
• Category: Article
• ISSN: 0899-8418
• DOI: 10.1002/(sici)1097-0088(199809)18:11<1247::aid-joc311>3.0.co;2-l

✦ Synopsis

Daily meteorological measurements taken in Athens during the period 1951 -1984 are used to investigate the feasibility of calculating Penman-Monteith's evapotranspiration estimates when wind measurements are not available. Daily sheltered Piche data (from a large meteorological screen) are shown to be satisfactorily related to the second term in Penman-Monteith's equation on a daily basis. Furthermore, daily conventional Penman-Monteith evapotranspiration estimates are compared with the ones obtained from the adjusted Piche readings and the results show that daily, monthly or yearly evapotranspiration estimates, acquired over long periods, can be successfully estimated by using the substantial backlogs of Piche evaporimeter data. The analysis suggests monthly relationships to be justified for adjusting Piche data, although even one annual relationship seems to be able to estimate evapotranspiration in most of the months, or in a whole year period, satisfactorily.