We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Radiometric Cross Calibration of Landsat 8 Operational Land Imager (OLI) and Landsat 7 Enhanced Thematic Mapper Plus (ETM+).
- Authors
Mishra, Nischal; Haque, Md Obaidul; Leigh, Larry; Aaron, David; Helder, Dennis; Markham, Brian
- Abstract
This study evaluates the radiometric consistency between Landsat-8 Operational Land Imager (OLI) and Landsat 7 Enhanced Thematic Mapper Plus (ETM+) using cross calibration techniques. Two approaches are used, one based on cross calibration between the two sensors using simultaneous image pairs, acquired during an underfly event on 29-30 March 2013. The other approach is based on using time series of image statistics acquired by these two sensors over the Libya 4 pseudo invariant calibration site (PICS) (+28.55°N, +23.39°E). Analyses from these approaches show that the reflectance calibration of OLI is generally within ±3% of the ETM+ radiance calibration for all the reflective bands from visible to short wave infrared regions when the ChKur solar spectrum is used to convert the ETM+ radiance to reflectance. Similar results are obtained comparing the OLI radiance calibration directly with the ETM+ radiance calibration and the results in these two different physical units (radiance and reflectance) agree to within ±2% for all the analogous bands. These results will also be useful to tie all the Landsat heritage sensors from Landsat 1 MultiSpectral Scanner (MSS) through Landsat-8 OLI to a consistent radiometric scale.
- Subjects
CALIBRATION; REFLECTANCE measurement; BRIGHTNESS temperature; MULTISPECTRAL scanner; LANDSAT satellites
- Publication
Remote Sensing, 2014, Vol 6, Issue 12, p12619
- ISSN
2072-4292
- Publication type
Article
- DOI
10.3390/rs61212619