Spatiotemporal modeling of urban land cover changes and carbon storage ecosystem services: case study in Qaem Shahr County, Iran

2019 ◽  
Vol 22 (8) ◽  
pp. 8135-8158
Author(s):  
Mahdis Sadat ◽  
Mahmood Zoghi ◽  
Bahram Malekmohammadi
Keyword(s):  
Ecosystem Services ◽  
Land Cover ◽  
Carbon Storage ◽  
Urban Land ◽  
Land Cover Changes ◽  
Spatiotemporal Modeling ◽  
Urban Land Cover

Simulating urban land cover changes at sub-pixel level in a coastal city

2014 ◽  
Author(s):  
Xiaofeng Zhao ◽  
Lei Deng ◽  
Huihui Feng ◽  
Yanchuang Zhao
Keyword(s):  
Land Cover ◽  
Urban Land ◽  
Land Cover Changes ◽  
Coastal City ◽  
Urban Land Cover

Quantification of Urban Heat Intensity with Land Use/Land Cover Changes Using Landsat Satellite Data Over Urban Landscapes

2021 ◽  
Author(s):  
Ruchi Bala ◽  
Rajendra Prasad ◽  
Vijay Pratap Yadav
Keyword(s):  
Land Cover ◽  
Land Surface ◽  
Urban Land ◽  
Land Cover Changes ◽  
Urban Landscapes ◽  
Positive Contribution ◽  
Negative Contribution ◽  
Urban Land Cover ◽  
Urban Heat ◽  
Landsat Satellite

Abstract Urban heat island (UHI) is a phenomenon which may have adverse effects on our environment and is stimulated as a result of urbanisation or land cover changes. Thermal remote sensing has been found beneficial to study the effect of urbanisation on UHI intensity. This paper analyses the variation in Land surface temperature (LST) with land cover changes in Varanasi city of India from 1989 to 2018 using Landsat satellite images. A new index named Urban Heat Intensity Ratio Index (UHIRI) was proposed to quantify the urban heat intensity from 1989 to 2018 which was found to increase from 0.36 in year 1989 to 0.87 in year 2018. Further, contribution of each land cover towards UHI was determined using Land cover contribution index (LCCI). The negative value of LCCI for water and vegetation indicates its negative contribution towards UHI whereas positive value of LCCI for bare soil and built-ups depicted its positive contribution towards UHI. The LCCI value for urban land cover shows significant increase in 29 years i.e. 0.49, 1.43, 3.40, 4.37 for years 1989, 1997, 2008 and 2018 respectively. The change in normalized LST from years 1989 to 2018 for the conversion of bare land to built-ups and vegetation to built-ups were found to be as -0.11 and 0.42 respectively. This led to conclusion that the replacement of vegetation with urban land cover has severe impact on increasing UHI intensity.

Sign in / Sign up

Export Citation Format

Share Document