Table 4 Key parameters for the airborne laser scanning campaigns
From: Forest biomass change estimated from height change in interferometric SAR height models
Parameter | 1999 | 2010 |
|---|---|---|
Instrument | Optech ALTM 1210 | Optech ALTM Gemini |
Pulse repetition frequency | 10 kHz | 100 kHz |
Scan frequency | 21 Hz | 55 Hz |
Scan half-angle (after processing) | 14.0° | 13.8° |
Pulse density on ground | 1.2 m-2 | 7.3 m-2 |