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Tandem (combined QuikSCAT/SeaWinds) Enhanced Resolution Image Products

Tandem mission data consists of QuikSCAT and SeaWinds collected when both were operationing. SeaWinds on ADEOS-II and SeaWinds on QuikSCAT are identical instruments and have been carefully cross-calibrated. The orbit phasing is such that they observe the same location at different local-times of day, however.

The increased temporal coverage of the tandem data set compared to a single instrument can be exploited to improve the spatial and/or temporal sampling in enhanced resolution imaging. For improved termporal resolution the tandem mission set is processed into 'all pass' images. For improved temporal resolution in the polar regions, daily local-time-of-day images have been generated. However, separate ascending/descending pass images are not available for tandem data. Combining QuikSCAT, SeaWinds, and tandem images enables up to 3 images per day in the polar regions.

Images are made both from "egg" backscatter measurements and "slice" measurements.

Further information is available in the QuikSCAT/SeaWinds Enhanced Resolution Image Users Notes.

Available Image Classes
Egg Images
  H Pol V Pol
all passes tueh tuev
evening passes* teeh teev
morning passes** tmeh tmev
Slice Images
  H Pol V Pol
all passes tush tusv
evening passes* tesh tesv
morning passes** tmsh tmsv

* Note: Only Arc and Grn regions available

** Note: Only Ant regions available