PUBLICACIONES últimos 10 años

Karimi, A.; Mohammad, P.; Gachkar, S.; Gachkar, D.; Gachkar, S.; Martinez, A.G.; Rangel, D.M.; Brown, R.D. (2021). Surface Urban Heat Island Assessment of a Cold Desert City: A Case Study over the Isfahan Metropolitan Area of Iran.

REVISTA: Atmosphere, 12(10)-1368, 1-20.
IMPACTO: JCR (2021): 2.686. Environmental science (Q2)(53/94)
DOI: 10.3390/atmos12101368

ABSTRACT :

This study investigates the diurnal, seasonal, monthly and temporal variation of land surface temperature (LST) and surface urban heat island intensity (SUHII) over the Isfahan metropolitan area, Iran, during 2003–2019 using MODIS data. It also examines the driving factors of SUHII like cropland, built-up areas (BI), the urban–rural difference in enhanced vegetation index (?EVI), evapotranspiration (?ET), and white sky albedo (?WSA). The results reveal the presence of urban cool islands during the daytime and urban heat islands at night. The maximum SUHII was observed at 22:30 p.m., while the minimum was at 10:30 a.m. The summer months (June to September) show higher SUHII compared to the winter months (February to May). The daytime SUHII demonstrates a robust positive correlation with cropland and ?WSA, and a negative correlation with ?ET, ?EVI, and BI. The nighttime SUHII displays a negative correlation with ?ET and ?EVI.

Highlights:
The manuscript deal with the urban heat island phenomenon of a desert city of Iran.
The results of very interesting as compared to the other cities of temperature and mid humid zones.
A negative urban heat island phenomenon is observed over the city, which is study in detail in the present research.
This study tries to analyze the seasonal, annual and monthly heat island variation and their possible mechanism which lead to such observation including the role of vegetation, albedo and other important parameter.
The result will be very helpful for the urban policy makes and planners while planning heat island mitigation strategies.