DOI: 10.5194/hess-21-1973-2017
Scopus记录号: 2-s2.0-85017661316
论文题名: The quantification and correction of wind-induced precipitation measurement errors
作者: Kochendorfer J ; , Rasmussen R ; , Wolff M ; , Baker B ; , Hall M ; E ; , Meyers T ; , Landolt S ; , Jachcik A ; , Isaksen K ; , Brækkan R ; , Leeper R
刊名: Hydrology and Earth System Sciences
ISSN: 10275606
出版年: 2017
卷: 21, 期: 4 起始页码: 1973
结束页码: 1989
语种: 英语
Scopus关键词: Budget control
; Climate change
; Errors
; Meteorological instruments
; Water management
; Water resources
; Weighing
; Wind
; Correction function
; Hydrologic measurements
; Hydrological monitoring
; Long-term management
; Precipitation gauges
; Precipitation measurement
; Wind-induced undercatch
; World meteorological organizations
; Gages
; air temperature
; climate change
; error analysis
; experimental study
; measurement method
; precipitation assessment
; quantitative analysis
; raingauge
; Norway
; United States
英文摘要: Hydrologic measurements are important for both the short- and long-term management of water resources. Of the terms in the hydrologic budget, precipitation is typically the most important input; however, measurements of precipitation are subject to large errors and biases. For example, an all-weather unshielded weighing precipitation gauge can collect less than 50% of the actual amount of solid precipitation when wind speeds exceed 5ms-1. Using results from two different precipitation test beds, such errors have been assessed for unshielded weighing gauges and for weighing gauges employing four of the most common windshields currently in use. Functions to correct wind-induced undercatch were developed and tested. In addition, corrections for the single-Alter weighing gauge were developed using the combined results of two separate sites in Norway and the USA. In general, the results indicate that the functions effectively correct the undercatch bias that affects such precipitation measurements. In addition, a single function developed for the single-Alter gauges effectively decreased the bias at both sites, with the bias at the US site improving from -12 to 0 %, and the bias at the Norwegian site improving from -27 to -4 %. These correction functions require only wind speed and air temperature as inputs, and were developed for use in national and local precipitation networks, hydrological monitoring, roadway and airport safety work, and climate change research. The techniques used to develop and test these transfer functions at more than one site can also be used for other more comprehensive studies, such as the World Meteorological Organization Solid Precipitation Intercomparison Experiment (WMO-SPICE). © Author(s) 2017. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/79201
Appears in Collections: 气候变化事实与影响
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作者单位: ARL/Atmospheric Turbulence and Diffusion Division, National Oceanic and Atmospheric Administration, Oak Ridge, TN, United States; National Centers for Atmospheric Research, Boulder, CO, United States; Norwegian Meteorological Institute, Oslo, Norway; Cooperative Institute of Climate and Satellites, North Carolina State University, Asheville, NC, United States; National Centers for Environmental Information, National Oceanic and Atmospheric Administration, Asheville, NC, United States; Oak Ridge Asociated Universities, Oak Ridge, TN, United States
Recommended Citation:
Kochendorfer J,, Rasmussen R,, Wolff M,et al. The quantification and correction of wind-induced precipitation measurement errors[J]. Hydrology and Earth System Sciences,2017-01-01,21(4)