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product.Layer

One file of a composite product: its measurement or one of its quality layers.

Usage

Source

product.Layer()

A quality layer adds its value to the composite’s file name as a token, such as S1_RTC_LRW_QA-NUM_…; the measurement file carries no token.

Attributes

Name Description
MEASUREMENT The composite’s values: backscatter or coherence.
QA_CQM Composite local resolution: the reciprocal of the weighted relative area.
QA_NUM Number of input products contributing to each composite pixel.

MEASUREMENT

The composite’s values: backscatter or coherence.

MEASUREMENT="MEASUREMENT"

QA_CQM

Composite local resolution: the reciprocal of the weighted relative area.

QA_CQM="QA-CQM"

Dimensionless; high values mean high (good) local resolution. The CEOS-ARD Composite Quality Map Image, which defines it by reference to Small et al. (2022), eq. 6; see s1bursts.resolution_weighter. LRW composites only.

QA_NUM

Number of input products contributing to each composite pixel.

QA_NUM="QA-NUM"

On an LRW composite this counts the products carrying a non-zero resolution weight, the CEOS-ARD Contributing Observations Image. Pass composites are unweighted, so there it counts the products holding a finite value.