دانلود مقاله ISI انگلیسی شماره 160027
ترجمه فارسی عنوان مقاله

بررسی ویژگی های جزیره گرمایی در سطح شهر بیش از ابوجا، نیجریه: رابطه بین درجه حرارت سطح زمین و شاخص های پوشش گیاهی چند

عنوان انگلیسی
Investigating surface urban heat island characteristics over Abuja, Nigeria: Relationship between land surface temperature and multiple vegetation indices
کد مقاله سال انتشار تعداد صفحات مقاله انگلیسی
160027 2017 36 صفحه PDF
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Remote Sensing Applications: Society and Environment, Volume 7, August 2017, Pages 57-68

ترجمه کلمات کلیدی
نقاط داغ، شاخص های گیاهی استفاده از زمین استفاده از زمین، تحلیل آماری، دمای سطح زمین،
کلمات کلیدی انگلیسی
Hot spots; Vegetation Indices; Land use Land cover; Statistical analysis; Land surface temperature;
پیش نمایش مقاله
پیش نمایش مقاله  بررسی ویژگی های جزیره گرمایی در سطح شهر بیش از ابوجا، نیجریه: رابطه بین درجه حرارت سطح زمین و شاخص های پوشش گیاهی چند

چکیده انگلیسی

The study is aimed at investigating urban heat island over Abuja based on the relationship between land surface temperature estimated from Landsat 8 Thermal Infrared Sensor (TIRS) band and four vegetation indices from Landsat 8 Operational Land Imager (OLI) bands. The four vegetation indices considered are the Red Edge Normalized Difference Vegetation Index 705 (NDVI705), Modified Soil Adjusted Vegetation Index 2 (MSAVI2), Ratio Vegetation Index (RVI) and Normalized Difference Built-up Index (NDBI). A linear regression is generated to evaluate the correlation of Land Surface Temperature (LST) with the four vegetation indices. LST relationships with NDVI705 and MSAVI2 showed negative correlations and low correlation coefficients (R) values while the relationships with NDBI and RVI showed positive correlations with NDBI having R value of 0.84. Negative and near-negative values NDVI705 and MSAVI2 were observed on built up areas, water bodies and bare surfaces while highest values of RVI and NDBI were recorded on built up surfaces. The trend analysis of LST against different Land use Land cover (LULC) indicated that there is a decreasing trend of LST across the sample points from bare surfaces to water bodies with R of 0.83. Significant hot spots of high LST were recorded in built up areas and bare surfaces while significant cold spots were seen on vegetated surfaces. In general, the LST, hot spots and cold spots were shown to have been greatly influenced by the LULC of the area.