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UBT - Ungridded Brightness Temperature

UBT is an ungridded brightness temperature/reflectance product (a new product for SADIST-2). The product contains ungridded, calibrated brightness temperatures or reflectance\rquote s from all or some of the ATSR-1/ATSR-2 detectors. Although the product remains ungridded, it may optionally contain pixel latitude/longitude positions, and/or pixel X/Y (across-track/along-track) co-ordinates.

Ungridded products contain pixels in the ATSR scan geometry. There is a correspondence between the contents of a record and the contents of an ATSR instrument scan.

UBT

Code

Meaning

ATSR-1

ATSR-2

N

Nadir-only records

Not an option

Not an option

T

Thermal infra-red detector counts (12.0Ám, 11.0Ám, 3.7Ám, 1.6Ám)

Optional

(present by default)

Optional

(present by default)

V

Visible/near-infra-red detector records (1.6Ám, 0.87Ám, 0.65Ám, 0.55Ám)

Not an option

Optional

(present by default)

L

Pixel latitude/longitude records

Optional

(omitted by default)

Optional

(omitted by default)

X

Pixel X/Y co-ordinates records

Optional

(omitted by default)

Optional

(omitted by default)

C

Cloud-clearing/hand-flagging result records

Not an option

Not an option

 

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Page last modified : Tuesday, 04-Dec-07