ESA Earth Home Missions Data Products Resources Applications
EO Data Access
How to Apply
How to Access
RA2/MWR Data Formats Products
Frequently Asked Questions
Main RA-2 Level 2 Algorithms (Non-Ocean)
Main MWR Level 1b algorithms
Main RA-2 Level 1b algorithms
MWR Instrument
RA-2 Instrument
RA-2 and MWR Instruments
MWR Instrument Characteristics and Performance
In-flight performance verification
MWR Instrument Description
RA-2 Instrument Characteristics and Performance
In-flight Performance verification
RA2/MWR Products and Algorithms
RA-2/MWR Auxiliary files
Common Auxiliary Data Sets
Level 2 processing
Level 1b processing
Specific Topics Related To The Radar Altimeter
Orbit interpolation
Measurement Reference
Time Handling And Leap Seconds
RA-2/MWR Level 2 Products And Algorithms
RA2/MWR Level 2 Products
Averaged Ku chirp band
Ocean depth/land elevation
RA-2 ionospheric correction
RA-2/MWR Level 1b Products and Algorithms
RA-2/MWR Level 1b product
MWR Level 1b algorithms
Level 0 products
MWR Level 0 products
Products Evolution History
Definitions and Conventions
Organisation of Products
Data Handling Cookbook
Characterisation And Calibration
Latency, Throughput And Data Volume.
Product size
RA2/MWR Products User Guide
Further reading
How to use RA-2/MWR data
How To Choose RA-2/MWR Data Products
Summary of Applications vs. Products
Peculiarities of MWR
Peculiarities of RA2
Geophysical Coverage
Principles Of Measurement
Scientific Background
ENVISAT RA2/MWR Product Handbook
Site Map
Frequently asked questions
Terms of use
Contact us


2.9 RA-2/MWR Auxiliary files

2.9.1 Summary of Auxiliary Data Sets

The auxiliary, or external, data sets, used to process the L0 and L1b data, can be divided into static and dynamic data.

The static data (e.g. RA2_CON_AX, or RA2 Configuration file, for L1b, or RA2_SOI_AX, or ocean/ice2 system file, for Level 2) is not updated very frequently.

During Commissioning Phase most of them were modified (e.g. tuning of thresholds, modification of scaling factors, ...), following the L1b and L2 algorithms verification groups activities.

The dynamic data (e.g. RA2_USO_AX, or USO frequency file, for L1b or RA2_POL_AX, or polar motion file, for Level 2) are always updated (tipycally every 2 or 3 days for the Polar motion file, and whenever an USO drift is detected, for the USO file).

The external set of files used for the processing is present in the Data Set Descriptors structure of the output SPH.

Keywords: ESA European Space Agency - Agence spatiale europeenne, observation de la terre, earth observation, satellite remote sensing, teledetection, geophysique, altimetrie, radar, chimique atmospherique, geophysics, altimetry, radar, atmospheric chemistry