Based on the geographically weighted regression model, this study further analyzed the spatial heterogeneity between road GVI and the normalized difference vegetation index (NDVI). The results showed that the average road GVI at sample point level, road level, and county level within the study area...
Normalized Difference Vegetation Index versus Dark Green Colour Index to estimate nitrogen status on bermudagrass hybrid and tall fescueNormalized Difference Vegetation Index versus Dark Green Colour Index to estimate nitrogen status on bermudagrass hybrid and tall fescueIn recent years digital sensors have ...
The quantity of urban green infrastructure measured based on remotely sensed indicators of spectral greenness (Normalized Difference Vegetation Index, NDVI, see Methods) had a coefficient of variation (CV) of 35%. Similarly, the quality of urban green infrastructure in terms of cooling efficiency (...
Normalized difference vegetation indexCity sustainabilityLand surface temperatureLand use/cover changeUrban heat islandUrban green spaces play a crucial role in maintaining the sustainability of a city with the promotion of essential ecological functions to supplement the natural and social environment of ...
NDVI: Normalized Difference Vegetation Index; ADHD: Attention Deficit Hyperactivity Disorder; DMS-IV: Diagnostic and Statistical Manual of Mental Disorders Fourth Edition; SDQ: Strengths and Difficulties Questionnaire; ICD: International Classification of Diseases; CBCL: Child Behavior Checklist; MSAVI: Modi...
First, we used a maximum value composite approach to generate the yearly vegetation green metrics across 1028 urban cities globally by selecting the maximum normalized difference vegetation index (NDVI) value on a pixel-by-pixel basis from the clear-sky satellite time series. In addition to the ...
1. NDVI(Normalized Difference Vegetation Index) 不多介绍,这应该是应用地最广的植被指数了... \[NDVI=\frac{NIR-Red}{NIR+Red}\] def getNDVI(image): # Normalized difference vegetation index (NDVI) ndvi = image.normalizedDifference(['B8','B4']).rename("NDVI") ...
2024). The Normalized Difference Vegetation Index (NDVI) was calculated for the Sentinel-2 2D land cover data set, which was transformed to the EPSG:25832 coordinate system. In the case of Sentinel-2 data, the NDVI can be calculated in the following manner (custom-scripts.sentinel-hub 2024)...
Note. NDVI = Normalized Difference Vegetation Index. SES = Socioeconomic status. * p < 0.05 ** p < 0.01 *** p < 0.001. In Model 3, we found a positive interaction effect between the COVID dummy variable (coded 0 for the prepandemic period and 1 for the period during the pandemic)...
Most of the research using remote sensing satellites has used the normalized difference vegetation index (NDVI) with 30 m resolution from Landsat images or 250 m resolution from the MODIS (Casey et al., 2017; Crouse et al., 2017). To be able to accurately identify green space but at...