Radiosity from Individual Urban Landscape Elements Measured Using a Modified Low-Cost Temperature Sensor
Loss of green space in our suburban environment is contributing to increased urban heat. The material properties of surface treatments or landscape elements (LEs) are a determining factor in the amount, timing, and type of radiation present in the local environment. Landscape designers can use this...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-03-01
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| Series: | Urban Science |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2413-8851/4/1/14 |
| _version_ | 1818998266427080704 |
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| author | Jane Loveday Grant K. Loveday Joshua J. Byrne Boon-lay Ong Gregory M. Morrison |
| author_facet | Jane Loveday Grant K. Loveday Joshua J. Byrne Boon-lay Ong Gregory M. Morrison |
| author_sort | Jane Loveday |
| collection | DOAJ |
| description | Loss of green space in our suburban environment is contributing to increased urban heat. The material properties of surface treatments or landscape elements (LEs) are a determining factor in the amount, timing, and type of radiation present in the local environment. Landscape designers can use this information to better design for urban heat management, as emitted and reflected radiation (radiosity) from LEs can affect pedestrians via heat stress and glare and affect energy usage in buildings and houses if the landscape sky view factor is low. Low-cost black painted iButton temperature sensors were successfully used as radiometers to concurrently measure the daytime radiosity from 19 LEs samples located on an oval in the warm temperate climate of Perth, (Australia). Normalisation against gloss white paint on polystyrene removed the effect of varying weather conditions. Each LE had the same normalised average radiosity (<i>DR<sub>av</sub></i>) between seasons (within ±5%), meaning the relative radiosity of new LEs can be measured on any day. White and lighter coloured LEs had the highest <i>DR<sub>av</sub></i> and would have the most detrimental effect on nearby objects. Plants and moist LEs had the least <i>DR<sub>av</sub></i> and would be most beneficial for managing local daytime urban heat. Measuring relative radiosity with iButtons presents a new way to examine the effect of LEs on the urban environment. |
| first_indexed | 2024-12-20T21:58:48Z |
| format | Article |
| id | doaj.art-c9a16ebfa1b141abb3f19bea046b84b9 |
| institution | Directory Open Access Journal |
| issn | 2413-8851 |
| language | English |
| last_indexed | 2024-12-20T21:58:48Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Urban Science |
| spelling | doaj.art-c9a16ebfa1b141abb3f19bea046b84b92022-12-21T19:25:23ZengMDPI AGUrban Science2413-88512020-03-01411410.3390/urbansci4010014urbansci4010014Radiosity from Individual Urban Landscape Elements Measured Using a Modified Low-Cost Temperature SensorJane Loveday0Grant K. Loveday1Joshua J. Byrne2Boon-lay Ong3Gregory M. Morrison4School of Design and the Built Environment, Curtin University Sustainability Policy Institute, Curtin University, Bentley 6102, AustraliaIndependent Researcher, Booragoon 6154, AustraliaSchool of Design and the Built Environment, Curtin University Sustainability Policy Institute, Curtin University, Bentley 6102, AustraliaSchool of Design and the Built Environment, Curtin University, Bentley 6102, AustraliaSchool of Design and the Built Environment, Curtin University Sustainability Policy Institute, Curtin University, Bentley 6102, AustraliaLoss of green space in our suburban environment is contributing to increased urban heat. The material properties of surface treatments or landscape elements (LEs) are a determining factor in the amount, timing, and type of radiation present in the local environment. Landscape designers can use this information to better design for urban heat management, as emitted and reflected radiation (radiosity) from LEs can affect pedestrians via heat stress and glare and affect energy usage in buildings and houses if the landscape sky view factor is low. Low-cost black painted iButton temperature sensors were successfully used as radiometers to concurrently measure the daytime radiosity from 19 LEs samples located on an oval in the warm temperate climate of Perth, (Australia). Normalisation against gloss white paint on polystyrene removed the effect of varying weather conditions. Each LE had the same normalised average radiosity (<i>DR<sub>av</sub></i>) between seasons (within ±5%), meaning the relative radiosity of new LEs can be measured on any day. White and lighter coloured LEs had the highest <i>DR<sub>av</sub></i> and would have the most detrimental effect on nearby objects. Plants and moist LEs had the least <i>DR<sub>av</sub></i> and would be most beneficial for managing local daytime urban heat. Measuring relative radiosity with iButtons presents a new way to examine the effect of LEs on the urban environment.https://www.mdpi.com/2413-8851/4/1/14radiant energyibuttonsthermochronsurban heatlandscape design |
| spellingShingle | Jane Loveday Grant K. Loveday Joshua J. Byrne Boon-lay Ong Gregory M. Morrison Radiosity from Individual Urban Landscape Elements Measured Using a Modified Low-Cost Temperature Sensor Urban Science radiant energy ibuttons thermochrons urban heat landscape design |
| title | Radiosity from Individual Urban Landscape Elements Measured Using a Modified Low-Cost Temperature Sensor |
| title_full | Radiosity from Individual Urban Landscape Elements Measured Using a Modified Low-Cost Temperature Sensor |
| title_fullStr | Radiosity from Individual Urban Landscape Elements Measured Using a Modified Low-Cost Temperature Sensor |
| title_full_unstemmed | Radiosity from Individual Urban Landscape Elements Measured Using a Modified Low-Cost Temperature Sensor |
| title_short | Radiosity from Individual Urban Landscape Elements Measured Using a Modified Low-Cost Temperature Sensor |
| title_sort | radiosity from individual urban landscape elements measured using a modified low cost temperature sensor |
| topic | radiant energy ibuttons thermochrons urban heat landscape design |
| url | https://www.mdpi.com/2413-8851/4/1/14 |
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