𝔖 Bobbio Scriptorium
✦   LIBER   ✦

II: Wind related errors in different methods of solid precipitation measurement

✍ Scribed by Th. Günther; B. Graf

Publisher
John Wiley and Sons
Year
1991
Tongue
English
Weight
449 KB
Volume
5
Category
Article
ISSN
0885-6087

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Using data sets assembled within the WMO Solid Precipitation Measurement Intercomparison, the paper deals with the wind related losses in national methods of solid precipitation measurement. Fourteen different types of precipitation gauges are included in the Harzgerode/GDR intercomparison field. Initial results of the comparisons between the Valdai double fence reference method and the other gauges in terms of dependence on wind speed and type of precipitation are presented. These results reveal that the national unsheltered HELLMANN gauge catches only 24 per cent to 70 per cent of the daily totals of solid precipitation as compared with the reference gauge. Results of the analysis of monthly totals and individual events reveal a similar dependence of gauge deficiencies on wind speed and type of precipitation. Case studies of single snow falls and the wind field conditions around and within the double fence reference are also described.

📜 SIMILAR VOLUMES

III: Methods of correcting for systemati
III: Methods of correcting for systematic errors in atmospheric precipitation measurements in Czechoslovakia
✍ M. Lapin; F. Šamaj 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 539 KB

The methods of correcting for systematic errors in precipitation measurements using the Czechoslovak gauge METRA 886 are presented. This gauge has an orifice area of 500 cm2 and is elevated 1 m above the ground. The wetting correction amounts to 0.1-0.2 mm per measurement. The evaporation correction

Correcting wind-induced bias in solid pr
Correcting wind-induced bias in solid precipitation measurements in case of limited and uncertain data
✍ Vincent Fortin; Charles Therrien; François Anctil 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 278 KB

## Abstract Automatic precipitation gauges tend to underestimate solid precipitation in the presence of wind. Loss as a function of wind speed is typically evaluated by comparing the gauge with a more accurate measurement made using a double‐fence intercomparison reference gauge (DFIR). For small p

Measurement of -OH groups in coals of di
Measurement of -OH groups in coals of different rank using microwave methodology, and the development of quantitative solid state n.m.r. methods for in situ analysis
✍ Parisa Monsef-Mirzai; William R. McWhinnie; Michael C. Perry; Paul Burchill 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 1012 KB

Experiments with both model compounds (substituted phenols) and with 11 coals (nine British and two American) have established that microwave heating will greatly accelerate silylation reactions of the phenolic -OH groups, e.g. for Creswell coal complete silylation of -OH groups occurs in 35 min in