Unshielded precipitation gauge collection efficiency with wind speed and hydrometeor fall velocity

نویسندگان

چکیده

Abstract. Collection efficiency transfer functions that compensate for wind-induced collection loss are presented and evaluated unshielded precipitation gauges. Three novel with wind speed fall velocity dependence developed, including a function from computational fluid dynamics modelling (CFD), an experimental threshold (HE1), linear (HE2). These alongside universal (KUniversal) climate-specific (KCARE) temperature dependence. Transfer performance is assessed using 30 min event accumulations reported by shielded Geonor T-200B3 gauges over two winter seasons. The latter gauge was installed in Double Fence Automated Reference (DFAR) configuration. Estimates of were provided the Precipitation Occurrence Sensor System (POSS). CFD reduced RMSE (0.08 mm) relative to KUniversal (0.20 mm), KCARE (0.13 unadjusted measurements (0.24 bias error 0.011 mm. HE1 0.09 mm 0.006 mm, capturing trends rain snow well. HE2 better captured overall efficiency, mixed precipitation, resulting 0.07 across solid liquid hydrometeor types temperatures between ?22 19 ?C. results demonstrate incorporating can dramatically reduce uncertainty adjusted based on temperature.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Q fever infection in dairy cattle herds: increased risk with high wind speed and low precipitation

Ruminants are considered the main reservoir for transmission of Coxiella burnetii (Cb) to humans. The implementation of effective control measures against Cb in ruminants requires knowledge about potential risk factors. The objectives of this study were (i) to describe the spatial distribution of Q fever-infected dairy cattle herds in Sweden, (ii) to quantify the respective contributions of win...

متن کامل

A Dual-Polarization Radar Hydrometeor Classification Algorithm for Winter Precipitation

The purpose of this study is to demonstrate the use of polarimetric observations in a radar-based winter hydrometeor classification algorithm. This is accomplished by deriving bulk electromagnetic scattering properties of stratiform, cold-season rain, freezing rain, sleet, dry aggregated snowflakes, dendritic snow crystals, and platelike snow crystals at X-, C-, and S-band wavelengths based on ...

متن کامل

Dynamic characterization and predictability analysis of wind speed and wind power time series in Spain wind farm

The renewable energy resources such as wind power have recently attracted more researchers’ attention. It is mainly due to the aggressive energy consumption, high pollution and cost of fossil fuels. In this era, the future fluctuations of these time series should be predicted to increase the reliability of the power network. In this paper, the dynamic characteristics and short-term predictabili...

متن کامل

Impact of Wind Direction and Speed on Dusty Days

The direction and speed of winds play an important role in the occurrence of pollutions and dust stormas well as location placement for the establishment of industries and the expansion of cities. Yazd is a dry area of Iran, and constantly exposed to the dust particles in the air; and this in terms of human life and health issues are of special importance. In this paper a day when due to the am...

متن کامل

Impact of Wind Direction and Speed on Dusty Days

The direction and speed of winds play an important role in the occurrence of pollutions and dust stormas well as location placement for the establishment of industries and the expansion of cities. Yazd is a dry area of Iran, and constantly exposed to the dust particles in the air; and this in terms of human life and health issues are of special importance. In this paper a day when due to the am...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Hydrology and Earth System Sciences

سال: 2021

ISSN: ['1607-7938', '1027-5606']

DOI: https://doi.org/10.5194/hess-25-5473-2021