ESTIMATING THE SPATIAL-TEMPORAL CHANGES IN INTENSITY OF THE HEAT ISLAND IN TEHRAN METROPOLITAN BY USING ASTER AND LANDSAT8 SATELLITE IMAGES

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REZAEEI RAD H.; RAFIEYAN M.

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Journal: Journal of Regional Planning Year:2017 | Volume:7 | Issue:27 Page(s): 47-60

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Title

ESTIMATING THE SPATIAL-TEMPORAL CHANGES IN INTENSITY OF THE HEAT ISLAND IN TEHRAN METROPOLITAN BY USING ASTER AND LANDSAT8 SATELLITE IMAGES

Author(s)

REZAEEI RAD H. | RAFIEYAN M. | Issue Writer Certificate

Keywords

LAND SURFACE TEMPERATUREQ2

URBAN HEAT ISLANDQ1

SURFACE ENERGY CONSUMPTIONQ1

MAN-KENDALQ2

TEHRAN METROPOLITANQ2

Abstract

The simplest definition of urbanization is that urbanization is the process of becoming urban. Urban climate is defined by specific climate conditions which differ from surrounding rural areas. Urban areas, for example, have higher temperatures than surrounding rural areas and weaker winds. LAND SURFACE TEMPERATURE is an important phenomenon in global climate change. As the green house gases in the atmosphere increases, the LST will also increase. Energy and water exchanges at the biosphere–atmosphere interface have major influences on the Earth's weather and climate. Numerical models ranging from local to global scales must represent and predict effects of surface fluxes. In this study, LST for TEHRAN METROPOLITAN, was derived using SW algorithm with the use of Landsat 8 Optical Land Imager (OLI) of 30 m resolution and Thermal Infrared Sensor (TIR) data of 100 m resolution. SW algorithm needs spectral radiance and emissivity of two TIR bands as input for deriving LST. The spectral radiance was estimated using TIR bands 10 and 11. Emissivity was derived with the help of land cover threshold technique for which OLI bands 2, 3, 4 and 5 were used. The output revealed that LST was high in the barren regions whereas it was low in the hilly regions because of vegetative cover. As the SW algorithm uses both the TIR bands (10 and 11) and OLI bands 2, 3, 4 and 5, the LST generated using them were more reliable and accurate.

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APA: Copy

REZAEEI RAD, H., & RAFIEYAN, M.. (2017). ESTIMATING THE SPATIAL-TEMPORAL CHANGES IN INTENSITY OF THE HEAT ISLAND IN TEHRAN METROPOLITAN BY USING ASTER AND LANDSAT8 SATELLITE IMAGES. JOURNAL OF REGIONAL PLANNING, 7(27 ), 47-60. SID. https://sid.ir/paper/230448/en

Vancouver: Copy

REZAEEI RAD H., RAFIEYAN M.. ESTIMATING THE SPATIAL-TEMPORAL CHANGES IN INTENSITY OF THE HEAT ISLAND IN TEHRAN METROPOLITAN BY USING ASTER AND LANDSAT8 SATELLITE IMAGES. JOURNAL OF REGIONAL PLANNING[Internet]. 2017;7(27 ):47-60. Available from: https://sid.ir/paper/230448/en

IEEE: Copy

H. REZAEEI RAD, and M. RAFIEYAN, “ESTIMATING THE SPATIAL-TEMPORAL CHANGES IN INTENSITY OF THE HEAT ISLAND IN TEHRAN METROPOLITAN BY USING ASTER AND LANDSAT8 SATELLITE IMAGES,” JOURNAL OF REGIONAL PLANNING, vol. 7, no. 27 , pp. 47–60, 2017, [Online]. Available: https://sid.ir/paper/230448/en

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