The surface temperature was retrieved based on MODIS remote sensing satellite data, and the spatial distribution and seasonal variation characteristic of urban heat island in Inner Mongolia were studied. The results showed that:(1)The urban heat island effect is weak in western Inner Mongolia during the daytime. Except for Jining, the probability of urban heat island effect in the central region has half-and-half trend, which is not as strong as that in the eastern region. The urban heat island effect in the eastern region has the highest probability, especially in Chifeng and Tongliao. The urban heat island effect is more likely to appear at night than the day, some cities even reaching 100% probability. (2) Inner Mongolia urban heat island effect does not show uniform seasonal variation. In daylight, Xilinhaote, Hailar, Jining and Tongliao are likely to have urban heat island effect in winter. Huhhot and Wulanhaote are likely to have urban heat island effect in summer. In nighttime, Huhhot, Jining, Tongliao, Wuhai, Wulanhaote and Xilinhaote are experienced urban heat island effect yearly. Linhe has urban heat island effect only in spring and not other seasons. Chifeng and Dongsheng have urban heat island effect only in autumn and not other seasons. Bayanhaote, Hailaer, Baotou have seasonal variation. (3) On June, July and August, Huhhot shows obvious urban heat island effect, summer is also the season owns the most serious urban heat island effect. Urban heat island effect also shows in winter, and the nighttime urban heat island effect is more serious. (4) Except cold island effect in May, July and December, the rest months in Jining are heat island effect. A weak cold island effect is showed in daylight on July, and the temperature difference between the urban and suburbs is only 0.58℃. A heat island effect is showed in nighttime on July, and the temperature difference between the urban and suburbs is only 1.42℃. Urban heat island effect is showed in daylight in December. In December, the weak cold island effect is observed in nighttime.
SU Yue
,
YU Shan
,
Duwala
,
LIN Hongjin
,
SHAGDAR Gantiganbold
. Research of Inner Mongolia Urban Heat (Cold) Island Effection based on MODIS Data Time Series[J]. Plateau Meteorology, 2019
, 38(6)
: 1263
-1271
.
DOI: 10.7522/j.issn.1000-0534.2018.00156
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