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NBUINew Built-Up Index

UrbanMultispectralThermalCitation Rank #240

Summary

The New Built-Up Index (NBUI) is a urban spectral index intended for multispectral and thermal sensing. It was introduced in 2016; its source is cited as Priyakant Sinha, N. K. Verma, & E. Ayele (2016). Urban Built-up Area Extraction and Change Detection of Adama Municipal Area using Time-Series Landsat Images. International Journal of Advanced Remote Sensing and GIS, 5. https://www.researchgate.net/publication/306346676_Urban_Built-up_Area_Extraction_and_Change_Detection_of_Adama_Municipal_Area_using_Time-Series_Landsat_Images .

Based on the latest citation data, this index is in the 23.96th percentile overall, ranking 240 out of 313 indices with citation data. Among the 38 indices published within two years of 2016, it ranks 30 (23.68th percentile). Within the urban application domain, it is in the 31.58th percentile and ranks 15 out of 19 indices with citation data. Among the 5 similarly aged urban indices, it ranks 4 (40th percentile).

Formula

((S1 - N)/(10.0 * (T + S1) ** 0.5)) - (((N - R) * (1.0 + L))/(N - R + L)) - (G - S1)/(G + S1)

Bands

S1

Short-wave Infrared (SWIR) 1.

N

Near-Infrared (NIR).

T

Thermal Infrared.

R

Red.

G

Green.

Polarizations

No radar polarizations are used in this index.

Constants

L

Canopy background adjustment.

Default value0.5
Suggested range0–1
Suggested values
High density vegetation
1
Low density vegetation
0
Medium density vegetation
0.5

Reductions

No contextual reductions are used in this index.

Released under the MIT License.