Name
Abstract | ||
|---|---|---|
For on-orbit calibration of the Beijing-1 multispectral imagers (Beijing-1/MS), a field calibration campaign was performed at the Dunhuang calibration site during September and October of 2008. Based on the in situ data and images from Beijing-1 and Terra/Moderate Resolution Imaging Spectroradiometer (MODIS), three vicarious calibration methods (i.e., reflectance-based, irradiance-based, and cross-calibration) were used to calculate the top-of-atmosphere (TOA) radiance of Beijing-1. An analysis was then performed to determine or identify systematic and accidental errors, and the overall uncertainty was assessed for each individual method. The findings show that the reflectance-based method has an uncertainty of more than 10% if the aerosol optical depth (AOD) exceeds 0.2. The cross-calibration method is able to reach an error level within 7% if the images are selected carefully. The final calibration coefficients were derived from the irradiance-based data for 6 September 2008, with an uncertainty estimated to be less than 5%. |
Year | DOI | Venue |
|---|---|---|
2014 | 10.3390/rs6021432 | REMOTE SENSING |
Keywords | Field | DocType |
vicarious calibration,Beijing-1,reflectance-based method,irradiance-based method,cross-calibration,Dunhuang site | Moderate-resolution imaging spectroradiometer,Optical depth,Remote sensing,Multispectral image,Irradiance,Geology,Reflectivity,Radiance,Beijing,Calibration | Journal |
Volume | Issue | ISSN |
6 | 2 | null |
Citations | PageRank | References |
3 | 0.48 | 5 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Zhengchao Chen | 1 | 22 | 10.85 |
| Bing Zhang | 2 | 422 | 74.10 |
| Hao Zhang | 3 | 9 | 3.20 |
| Wen-Juan Zhang | 4 | 30 | 8.82 |