Open AccessNoise Evaluation of early images for Landsat 8 Operational Land Imager
Author(s) -
Huazhong Ren,
Chen Du,
Rongyuan Liu,
Qiming Qin,
Guangjian Yan,
Zhao-Liang Li,
Juanjuan Meng
Publication year - 2014
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.027270
Subject(s) - radiance , remote sensing , noise (video) , environmental science , atmospheric correction , reflectivity , optics , physics , geology , computer science , image (mathematics) , artificial intelligence
This study performed an on-orbit evaluation of noise level for the Operational Land Imager (OLI) onboard Landsat 8 using early images over ground homogeneous sites. The signal-to-noise ratios (SNR) were higher than 160 of OLI nine bands at typical radiance level, while the noise equivalent radiance difference (NE∆L) and the noise equivalent reflectance difference (NE∆ρ) were respectively lower than 0.8 W/m(2)/µm/sr and 0.002. Compared to pre-launch predictions, the on-orbit low noise and high SNR almost satisfied requirements for OLI bands, and can provide a prior knowledge for uncertainty analysis of OLI images in monitoring land surface, oceanic, and atmospheric status.