Impact of an improved WRF urban canopy model on diurnal air temperature  simulation over northern Taiwan

Lin, Chuan-Yao; Su, Chiung-Jui; Kusaka, Hiroyuki; Akimoto, Yuko; Sheng, Yang-Fan; Huang, Jr-Chuan; Hsu, Huang-Hsiung

doi:10.5194/acp-16-1809-2016

Articles | Volume 16, issue 3

https://doi.org/10.5194/acp-16-1809-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-16-1809-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 16, issue 3

Research article

|

16 Feb 2016

Research article |

| 16 Feb 2016

Impact of an improved WRF urban canopy model on diurnal air temperature simulation over northern Taiwan

Chuan-Yao Lin, Chiung-Jui Su, Hiroyuki Kusaka, Yuko Akimoto, Yang-Fan Sheng, Jr-Chuan Huang, and Huang-Hsiung Hsu

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May 2016	17	15	2	34
Jun 2016	6	7	2	15
Jul 2016	12	7	3	22
Aug 2016	8	15	0	23
Sep 2016	10	12	2	24
Oct 2016	12	20	0	32
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Dec 2016	6	19	0	25
Jan 2017	14	26	2	42
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Apr 2017	33	29	1	63
May 2017	29	33	0	62
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Jul 2017	29	27	0	56
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Oct 2017	12	37	0	49
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Feb 2018	5	30	3	38
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Jun 2019	10	26	5	41
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Oct 2019	6	23	4	33
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Nov 2021	20	32	4	56
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Jan 2022	19	19	3	41
Feb 2022	13	14	2	29
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Apr 2022	18	11	2	31
May 2022	16	16	5	37
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Aug 2022	18	9	2	29
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Nov 2022	16	10	1	27
Dec 2022	7	8	1	16
Jan 2023	10	9	1	20
Feb 2023	19	9	1	29
Mar 2023	42	5	17	64
Apr 2023	7	8	0	15
May 2023	33	9	0	42
Jun 2023	40	6	1	47
Jul 2023	41	11	1	53
Aug 2023	35	10	3	48
Sep 2023	38	9	2	49
Oct 2023	44	9	4	57
Nov 2023	34	15	0	49
Dec 2023	56	10	5	71
Jan 2024	54	10	0	64
Feb 2024	53	19	2	74
Mar 2024	51	19	1	71
Apr 2024	42	13	5	60
May 2024	12	20	1	33
Jun 2024	50	18	1	69
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Aug 2024	32	16	5	53
Sep 2024	11	12	0	23
Oct 2024	19	17	0	36
Nov 2024	19	22	3	44
Dec 2024	17	12	0	29
Jan 2025	20	11	0	31
Feb 2025	25	21	5	51
Mar 2025	27	10	0	37
Apr 2025	38	20	3	61
May 2025	31	19	7	57
Jun 2025	47	15	1	63
Jul 2025	24	14	2	40
Aug 2025	76	26	0	102
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Oct 2025	33	31	0	64
Nov 2025	40	27	6	73
Dec 2025	38	43	4	85
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Cumulative views and downloads (calculated since 21 Oct 2015)

Month	HTML	PDF	XML	Total
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Nov 2015	36	38	9	83
Dec 2015	12	55	7	74
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May 2016	17	15	2	34
Jun 2016	6	7	2	15
Jul 2016	12	7	3	22
Aug 2016	8	15	0	23
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Oct 2016	12	20	0	32
Nov 2016	8	23	0	31
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Feb 2017	13	22	2	37
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Jul 2017	29	27	0	56
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Jun 2022	14	12	5	31
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Apr 2023	7	8	0	15
May 2023	33	9	0	42
Jun 2023	40	6	1	47
Jul 2023	41	11	1	53
Aug 2023	35	10	3	48
Sep 2023	38	9	2	49
Oct 2023	44	9	4	57
Nov 2023	34	15	0	49
Dec 2023	56	10	5	71
Jan 2024	54	10	0	64
Feb 2024	53	19	2	74
Mar 2024	51	19	1	71
Apr 2024	42	13	5	60
May 2024	12	20	1	33
Jun 2024	50	18	1	69
Jul 2024	14	13	1	28
Aug 2024	32	16	5	53
Sep 2024	11	12	0	23
Oct 2024	19	17	0	36
Nov 2024	19	22	3	44
Dec 2024	17	12	0	29
Jan 2025	20	11	0	31
Feb 2025	25	21	5	51
Mar 2025	27	10	0	37
Apr 2025	38	20	3	61
May 2025	31	19	7	57
Jun 2025	47	15	1	63
Jul 2025	24	14	2	40
Aug 2025	76	26	0	102
Sep 2025	47	17	1	65
Oct 2025	33	31	0	64
Nov 2025	40	27	6	73
Dec 2025	38	43	4	85
Jan 2026	25	12	2	39

Latest update: 21 Jan 2026

Short summary

This study evaluated the impact of urbanization over northern Taiwan using the Weather Research and Forecasting (WRF) Model coupled with the Noah land-surface model and a modified urban canopy model (WRF-UCM2D). WRF-UCM2D performed much better than the original UCM coupled with WRF (WRF-UCM) at non-urban stations with a low urban fraction during nighttime. The result of this study has crucial implications for assessing the impacts of urbanization on air quality and regional climate.