# Radiation screens and their impact on air temperature measurement: a review

Ryad Bouzouidja, Jérémy Bernard, Manon Kohler, François Leconte, Sophie Herpin, Pierre-Emmanuel Bournet, Martina Garcia de Cezar, Pascal Kéravec, Merveil Muanda-Lutete, Fabrice Rodriguez, et al.

► To cite this version:

Ryad Bouzouidja, Jérémy Bernard, Manon Kohler, François Leconte, Sophie Herpin, et al. Radiation screens and their impact on air temperature measurement: a review. 12th International Conference on Urban Climate, Jul 2025, Rotterdam, Netherlands. 2025, 10.5194/icuc12-1037. hal-05347011

HAL Id: hal-05347011

https://hal.science/hal-05347011v1

Submitted on 12 Nov 2025

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# Radiation screens and their impact on air temperature measurement: a review

Ryad Bouzouidja ¹,², Jéremy Bernard ³,¹⁵, Manon Kohler ⁴, François Leconte ⁵,¹⁵,†, Sophie Herpin ⁶,⁷, Pierre-Emmanuel Bournet ⁶,⁷, Martina Garcia De Cezar ⁸, Pascal Kéravec ⁷,⁹, Merveil Muanda-Lutete ¹⁰, Fabrice Rodriguez ⁷,¹¹, Severine Tomas ⁸, Vincent Dubreuil ¹², Rémy Claverie ¹³, and Martin Hendel ¹⁴

¹Univ. Bordeaux, CNRS, Bordeaux INP, I2M, UMR 5295, F-33400, Talence, France ²Arts et Metiers Institute of Technology, CNRS, Bordeaux INP, I2M, UMR 5295, F-33400 ³EDYTEM, CNRS, Le Bourget du Lac, France
⁴ThéMA - Théoriser et modéliser pour aménager (UMR 6049) ⁵LERMAB - Laboratoire d'Etudes et de Recherche sur le Matériau Bois ⁶Institut Agro, EPHOR, 49045, Angers, France ⁷IRSTV, FR CNRS 2488, 44321, Nantes, Cedex 3, France ⁸G-EAU, Univ Montpellier: AgroParisTech, BRGM, CIRAD, INRAE, Institut Agro, IRD, Montpellier, France ⁹Nantes Université, École Centrale Nantes, CNRS, LHEEA, UMR 6598, F-44000 Nantes, France
¹⁰CSTB - CSTB, Climatologie, Aérodynamique et Aéraulique, 44323 Nantes, France CSTB ¹¹GERS-LEE, Université Gustave Eiffel, Nantes, France ¹²LETG Rennes, Université Rennes 2, UMR 6554 CNRS ¹³Cerema Est, TEAM Research Group, F-54510, Tomblaine, France ¹⁴Université Paris Cité, LIED, UMR 8236, CNRS, F-75013, Paris, France ¹⁵CNRS, Lab-STICC, UMR 6285, Vannes, France

†Corresponding author. E-mail address: francois.leconte@univ-lorraine.fr

## Radiation screens : Key messages

* A review method including Research Rabbit ® is proposed and has led to a selection of 109 articles.

* Most of the studies focus on temperature error due to radiation while 16% investigates the role of the time-lag.

* Studies are carried out mostly outdoor (n=89). Laboratory (n=13) and modeling experiments (n=27) are less numerous.

## Introduction

* Air temperature measurements in urban context is a flourishing but challenging task due to the complexity of the environment.

* There is a lack of standard reference radiation screens for urban applications.

* Low screen performance can lead to significant errors in air temperature values.

## Objective

* This work aims to perform an extensive review of the scientific literature investigating effects of shields on air temperature observations and associated uncertainties/errors.

## Methods

* 19 initial peer-reviewed articles on the topics of air temperature measurement were selected.

* Scopus, Web of Science and Research Rabbit ® were used to build a corpus of several thousand of articles.

* Authors have read titles and abstracts to filter this selection and remove duplicate records and out-of-scope literature.

* At the end, 109 articles were selected for the review.

<figure><img src="image_3.png" /><figcaption>Figure 1: Prisma diagram for the selection of the literature source for the review.</figcaption></figure>

## Preliminary results

* Investigations have been made under all five climate groups with over-representation of Cfa and Cfb (Fig. 2 & 3).

<figure><img src="image_4.png" /><figcaption>Figure 2: Location of reviewed outdoor experiments. Each black dot corresponds to an experiment.</figcaption></figure>

<figure><img src="image_5.png" /><figcaption>Figure 3: Distribution of Köppen climate types of outdoor experiments.</figcaption></figure>

* A great diversity of shelter models is observed, even if major brands are present (e.g. Young, Met One, Vaisala) (Fig. 4).

* A significant part (42%) of the shelters are either home-made or from an unknown manufacturer.

* Naturally ventilated shelters are dominant (79%) but less often taken as a reference (49%).

<figure><img src="image_6.png" /><figcaption>Figure 4: Manufacturer shelter models studied in the selected articles.</figcaption></figure>