Using a Small Scale Wireless Sensor Network for Model Validation: Two Case Studies

In this paper, the potential of a network consisting of low cost weather stations for validating microscale model simulations and for forcing surface-atmosphere-transfer-schemes is investigated within two case studies. Transfer schemes often do not account for small scale variabilities of the earth...

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Main Authors: Katharina Lengfeld, Stefan Zacharias, Felix Ament
Format: Article
Language:English
Published: Borntraeger 2013-07-01
Series:Meteorologische Zeitschrift
Subjects:
Online Access:http://dx.doi.org/10.1127/0941-2948/2013/0422
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author Katharina Lengfeld
Stefan Zacharias
Felix Ament
Felix Ament
author_facet Katharina Lengfeld
Stefan Zacharias
Felix Ament
Felix Ament
author_sort Katharina Lengfeld
collection DOAJ
description In this paper, the potential of a network consisting of low cost weather stations for validating microscale model simulations and for forcing surface-atmosphere-transfer-schemes is investigated within two case studies. Transfer schemes often do not account for small scale variabilities of the earth surface, because measurements of the atmospheric conditions do not exist in such a high spatial resolution to force the models. To overcome this issue, in this study a small scale network of meteorological stations is used to derive measurements in high spatial and temporal resolution. The observations carried out during the measurement campaign are compared to air temperature and specific humidity simulations of the mesoscale atmospheric model FOOT3DK (Flow Over Orographically-Structured Terrain - 3 Dimensional Model (Kölner Version)). This comparison indicates that FOOT3DK simulates either air temperature or specific humidity satisfactorily for each station at the lowest model level, depending on the dominating land use class within each grid cell. The influence of heterogeneous forcing and vegetation on heat flux modelling is studied using the soil-vegetation-atmosphere transfer scheme TERRA. The observations of the measurement campaign are used as input for four different runs with homogeneous and heterogeneous forcing and vegetation. Heterogeneous vegetation reduces the bias between the grid cells, heterogeneous forcing reduces the random error for each grid cell.
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spelling doaj.art-814665de628d492a916fdd1243c31f252024-02-07T15:09:08ZengBorntraegerMeteorologische Zeitschrift0941-29482013-07-0122328329510.1127/0941-2948/2013/042281063Using a Small Scale Wireless Sensor Network for Model Validation: Two Case StudiesKatharina LengfeldStefan ZachariasFelix AmentFelix AmentIn this paper, the potential of a network consisting of low cost weather stations for validating microscale model simulations and for forcing surface-atmosphere-transfer-schemes is investigated within two case studies. Transfer schemes often do not account for small scale variabilities of the earth surface, because measurements of the atmospheric conditions do not exist in such a high spatial resolution to force the models. To overcome this issue, in this study a small scale network of meteorological stations is used to derive measurements in high spatial and temporal resolution. The observations carried out during the measurement campaign are compared to air temperature and specific humidity simulations of the mesoscale atmospheric model FOOT3DK (Flow Over Orographically-Structured Terrain - 3 Dimensional Model (Kölner Version)). This comparison indicates that FOOT3DK simulates either air temperature or specific humidity satisfactorily for each station at the lowest model level, depending on the dominating land use class within each grid cell. The influence of heterogeneous forcing and vegetation on heat flux modelling is studied using the soil-vegetation-atmosphere transfer scheme TERRA. The observations of the measurement campaign are used as input for four different runs with homogeneous and heterogeneous forcing and vegetation. Heterogeneous vegetation reduces the bias between the grid cells, heterogeneous forcing reduces the random error for each grid cell.http://dx.doi.org/10.1127/0941-2948/2013/0422atmospheric measurementsboundary layer meteorologyheat flux simulationmodel validationsmall variabilitywireless sensor network
spellingShingle Katharina Lengfeld
Stefan Zacharias
Felix Ament
Felix Ament
Using a Small Scale Wireless Sensor Network for Model Validation: Two Case Studies
Meteorologische Zeitschrift
atmospheric measurements
boundary layer meteorology
heat flux simulation
model validation
small variability
wireless sensor network
title Using a Small Scale Wireless Sensor Network for Model Validation: Two Case Studies
title_full Using a Small Scale Wireless Sensor Network for Model Validation: Two Case Studies
title_fullStr Using a Small Scale Wireless Sensor Network for Model Validation: Two Case Studies
title_full_unstemmed Using a Small Scale Wireless Sensor Network for Model Validation: Two Case Studies
title_short Using a Small Scale Wireless Sensor Network for Model Validation: Two Case Studies
title_sort using a small scale wireless sensor network for model validation two case studies
topic atmospheric measurements
boundary layer meteorology
heat flux simulation
model validation
small variability
wireless sensor network
url http://dx.doi.org/10.1127/0941-2948/2013/0422
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