VEGETATION PRODUCTS PRODUCTS FORMAT DEFINITION

STATUS MAP PLANE

The whole status map indicates for each pixel :

• In the status map the following bits are used for:

  from MSB to LSB

  Bit NR 7 (MSB): radiometric quality for B0 coded as 0 if bad and 1 if good
  Bit NR 6: radiometric quality for B2 coded as 0 if bad and 1 if good
  Bit NR 5: radiometric quality for B3 coded as 0 if bad and 1 if good
  Bit NR 4: radiometric quality for MIR coded as 0 if bad and 1 if good quality

  Bit NR 7 - 4: coded as 0 for 'no data', missing lines, sea on VGT-S products, adjacent blind or defective MIR detectors, interpolated data, saturated data, negative data after atmospheric correction

Bit NR 3: land (code 1) or water (code 0), computed from the "Digital Chart of the Worlds"
Bit NR 2: ice/snow (code 1) , code 0 if there is no ice/snow, computed from thresholds from reflectances

Bit NR 1: 0 0 1 1 Bit NR 0: 0 1 0 1 (LSB): clear shadow uncertain cloud

Statistics information are associated to the status map grid :

• Percentage of land pixel in the map
• Percentage of cloud pixels in the map
• Percentage of snow or icy pixels in the map

This table describe the auxiliary data associated to status map plane

Auxiliary data

VDATA NAME	VDATA CLASS	FIELD NAME
STATUS MAP	AUXILIARY DATA	IMAGE INFORMATION

Key word	Definition	Opt	Content
NUMBER_OF_LINES	Number of lines	---	lllll
NUMBER_OF_PIXELS	Number of pixels (the same for each line)	---	PPPPP
NUMBER_OF_BITS	Number of bits for each pixel	---	8

 

VDATA NAME	VDATA CLASS	FIELD NAME
STATUS MAP	AUXILIARY DATA	STATISTIC INFORMATION

Key word	Definition	Opt	Content
PERCENT_LAND	Percentage of land pixels in the map	---	nn
PERCENT_CLOUD	Percentage of cloud pixels in the map	---	nn
PERCENT_SNOW_ICE	Percentage of snow or icy pixels in the map	---	nn

Pixel data

SD Scientific data set

Number type :	DFNT_UINT8
Rank :	2
Dimension [rank] :	(NUMBER_OF_LINES,NUMBER_OF_PIXELS)
Name :	PIXEL DATA

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