WUR scintillometer measurements at Cabauw site

Dataset: WUR scintillometer measurements at Cabauw site
title	WUR-KNMI scintillimeter (long-path) measurements at Cabauw site
description	The MicroWave Scintillometer (MWS) PRG-MWSC-160 is combined with an optical Large Aperture Scintillometer (LAS) in the near infrared spectral region to simultaneously observe sensible and latent heat fluxes. The measurements are significant for applications in radiation budget studies, weather forecasting, irrigation and water management. The OMS measurements are conducted at Cabauw site with a short parth (800m) and a long path (10km) instrumentation.The sampling frequency is 1000Hz. WUR has processed scintillimeter raw scintillation data. The processed data include latent and heat fluxes at 30-minute interval.In addition to the turbulent flux values, the dataset contains: 1) the scintillation statistics and raw data quality flags; 2) variance data and structure parameters data, 3) ancillary data including essential meteorological data. The data processing workflow is as follows. The raw scintillometer data were physically constrained and cleaned of spikes using an IQR-based despiking method. The resulting quality flags were kept to assist in data quality evaluation. Subsequently, a moving window was used as a high-frequency filter to separate the scintillation signal from atmospheric absorption processes. The index and the variance of index were calculated. Then the refractive index structure parameters were calculated using the WUR developed hybrid method, which is based on the Ludi et al., (2005) method combined with the Hill et al. (1980) method. The Monin-Obukhov Similarity Theory (MOST) was then used to convert structure parameter data into turbulent fluxes.
Keywords	Cabauw, scintillimeter, turbulent fluxes
type See Dataset Types' descriptions in Dataset type taxon descriptions	In-situ Observation
format	csv
served by data service	YODA
landing page
PID
license
contact person	Hong Zhao, Oscar Hartogensis, Reinder Ronda
creator	Oscar Hartogensis
organization	Wageningen University

Geographic and Temporal Information
location	Cabauw
geographic coordinates
elevation (meters)
start date	2021-05-01
end date	2030-01-01

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We are working on making the processed H and LE data available. The data can be requested upon Oscar Hartogensis (oscar.hartogensis@wur.nl).