Difference between revisions of "Region and projection"

4.1 Region and projection

4.1.1 Region of Interest

Geographical framing of the products of the different sensors in MCYFS

D_xy = pixel size/resolution (1°/112=0.00892857143)

_Xmin … _Ymax = Map co-ordinates of IMG-edges, which are the co-ordinates of the outer edges of these pixels.

_Ncol, N_rec, N_pix = number of columns, records and pixels

4.1.2 Projection

All the MCYFS remote sensing data over the pan-European continent are stored in the INSPIRE-LAEA system, as prescribed by the EU INSPIRE initiative. The INSPIRE-LAEA system is defined as follows:

• Geodetical datum: ETRS89
• Map Projection:
  • Family: Lambert Azimuthal Equal Area (LAEA), with the formulae holding for the ellipse (Snyder, 1987).
  • Projection ellipse: GRS80 (same as WGS84)
  • True origin at Lon₀ = 10.00°, Lat₀ = 52.00°
  • Map shift: false easting X₀ = 4 321 000 m, false northing Y0 = 3 210 000 m
• Image Framing: the northwestern corner is fixed (X_min=2 275 000 m,

Y_max=5 415 000 m) but the southeastern extension varies slightly with the resolution.