On the self-ventilation of an urban heat island
Measurements of a new German Meteorological Service urban observation network in Hannover were used to analyse the urban heat island (UHI) and the dynamics of urban wind. The UHI was well pronounced on many nights of the year and had a maximum intensity during the observation period of more than 6 K...
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| Format: | Article |
| Language: | English |
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Borntraeger
2019-03-01
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| Series: | Meteorologische Zeitschrift |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1127/metz/2019/0961 |
| _version_ | 1828520364789989376 |
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| author | Günter Gross |
| author_facet | Günter Gross |
| author_sort | Günter Gross |
| collection | DOAJ |
| description | Measurements of a new German Meteorological Service urban observation network in Hannover were used to analyse the urban heat island (UHI) and the dynamics of urban wind. The UHI was well pronounced on many nights of the year and had a maximum intensity during the observation period of more than 6 K. A strong correlation between the UHI intensity and wind speed difference between the urban and the rural station was found. During the night, wind speed inside the city was significantly higher than in the surrounding rural area for an increasing air temperature contrast. This effect was attributed to the weaker thermal stability inside the city when there was a well-developed heat island, which enhanced the turbulent momentum flux from above. |
| first_indexed | 2024-12-11T19:29:45Z |
| format | Article |
| id | doaj.art-6b1d3389926c4ac9824e77b5fb2f2c43 |
| institution | Directory Open Access Journal |
| issn | 0941-2948 |
| language | English |
| last_indexed | 2024-12-11T19:29:45Z |
| publishDate | 2019-03-01 |
| publisher | Borntraeger |
| record_format | Article |
| series | Meteorologische Zeitschrift |
| spelling | doaj.art-6b1d3389926c4ac9824e77b5fb2f2c432022-12-22T00:53:19ZengBorntraegerMeteorologische Zeitschrift0941-29482019-03-01281879210.1127/metz/2019/096190525On the self-ventilation of an urban heat islandGünter GrossMeasurements of a new German Meteorological Service urban observation network in Hannover were used to analyse the urban heat island (UHI) and the dynamics of urban wind. The UHI was well pronounced on many nights of the year and had a maximum intensity during the observation period of more than 6 K. A strong correlation between the UHI intensity and wind speed difference between the urban and the rural station was found. During the night, wind speed inside the city was significantly higher than in the surrounding rural area for an increasing air temperature contrast. This effect was attributed to the weaker thermal stability inside the city when there was a well-developed heat island, which enhanced the turbulent momentum flux from above.http://dx.doi.org/10.1127/metz/2019/0961urban rural measurementsurban heat islandurban wind speed |
| spellingShingle | Günter Gross On the self-ventilation of an urban heat island Meteorologische Zeitschrift urban rural measurements urban heat island urban wind speed |
| title | On the self-ventilation of an urban heat island |
| title_full | On the self-ventilation of an urban heat island |
| title_fullStr | On the self-ventilation of an urban heat island |
| title_full_unstemmed | On the self-ventilation of an urban heat island |
| title_short | On the self-ventilation of an urban heat island |
| title_sort | on the self ventilation of an urban heat island |
| topic | urban rural measurements urban heat island urban wind speed |
| url | http://dx.doi.org/10.1127/metz/2019/0961 |
| work_keys_str_mv | AT guntergross ontheselfventilationofanurbanheatisland |