Research Article
Modelling Forest Aboveground Biomass Based on GF-3 Dual-Polarized and WorldView-3 Data: A Case Study in Datong National Wetland Park, China
Table 2
GF-3 imaging modes and corresponding technical specifications.
| Image mode | Nominal resolution (m) | Bandwidth (km) | Polarization mode |
| Spotlight mode | SL | 1 | 10 | Single |
| Strip imaging | Super fine (UFS) | 3 | 30 | Single | Fine stripI (FSI) | 5 | 50 | Dual | Fine stripII (FSII) | 10 | 100 | Dual | Standard strip (SS) | 25 | 130 | Dual | Quad-polarization stripmapI (QPSI) | 8 | 30 | Quad | Quad-polarization stripmapII (QPSII) | 25 | 40 | Quad |
| ScanSAR | Narrow (NSC) | 50 | 300 | Dual | Wide (WSC) | 100 | 500 | Dual | Global | 500 | 650 | Dual |
| Wave imaging | 10 | 5 | Quad |
| Extended incidence angle | Low incidence angle | 25 | 130 | Dual | High incidence angle | 25 | 80 | Dual |
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