2.7 Level 2 Products
Details of how to order AATSR data are given in Section 1.1.
The following sections describe the AATSR L2 processing algorithms, and the
products they produce, in more detail:
A short summary of the processing applied to each
product is also provided below.
Disclaimers addressing issues affecting AATSR
L2 product quality are published
The main AATSR Level 2 processing encompasses the
derivation of the ATS_NR__2P (GST) and ATSR_AR__2P (AST) products from the ATS_TOA_1P
(GBTR) product output by the Level
The main steps in the production of the Level 2
products are as follows:
- Derivation of Sea Surface Temperature (SST) and
other parameters from the GBTR
regridded brightness temperatures.
- Generation of averaged brightness temperatures
and reflectances from the GBTR
temperatures and visible channel reflectances.
- Derivation of averaged SST from the averaged
brightness temperatures, and of
NDVI from the averaged reflectances.
The high level organisation of the GST and AST
products is described in section 188.8.131.52. and section 184.108.40.206. respectively.
The AATSR Meteo product contains spatially averaged
SST and Brightness Temperature data in
10 arc minute cells over sea. These data
are extracted from the ATS_AR__2P (AST)
product. It is intended for near-real time use by
The high level organisation of this product is
described in section 220.127.116.11. .