Spatially Explicit Estimation of Clay and Organic Carbon Content in Agricultural Soils Using Multi-Annual Imaging Spectroscopy Data

Table 1

Characteristics of available HyMap data sets and its acquisition parameters.

DoA	ToA (UTC)*	Number of strips	Solar angles (°)	Heading** (°) (±2°)	MFA MSL (m)	PS  (m)
August 09, 2004	13:30–14:20	7	Azimuth: 117.2–130; Zenith: 46.3–52.2	0/180	~1990	4
May 27, 2005	9:50–10:50	7	Azimuth: 152.7–178.3; Zenith: 31.7–34.0	1/180	~1940	4
July 29, 2008	9:50–11:20	10	Azimuth: 147.1–183.1; Zenith: 35.3–38.7	0/180	~1934	4

*Local time is given by UTC+2. **Neighboring strips have the opposite flight direction. DoA: day of acquisition, ToA: time of acquisition, MFA ASL: mean flight altitude above mean sea level, and PS: pixel size.