Sea surface wind vector
Ku-band (13.4 GHz)
Refurbishment of the engineering unit of the QuikSCAT SeaWinds, adapted to the ISS (lower orbit, slightly smaller antenna size).
Conical scanning, two beams, to provide four views of each spot from different angles; swath 900 km
Best quality: 50 km - standard quality: 25 km - basic sampling: 12.5 km
Coverage / Cycle
Latitude-limited by the ISS orbital inclination (51.6°). Low and middle latitudes covered nearly daily.
Flown on an R&D satellite
2014-11-10 to 2016-08-19
Satellites this instrument is flying on
Note: a red tag indicates satellites no longer operational, a
green tag indicates operational satellites, a blue tag indicates
Earth observation instrument Active and radio-occultation sensor Scatterometer
No WIGOS subcomponents have been defined.
Primary mission objectives
Wind speed (near surface) Wind vector (near surface) Opportunity objectives Leaf Area Index (LAI) Sea-ice type Snow cover Snow status (wet/dry) Snow water equivalent Soil moisture at surface Show all Show fewer
Tentative Evaluation of Measurements
The following list indicates which measurements can
retrieved from this category of instrument. To see a full Gap Analysis by Variable,
click on the respective variable.
Note: table can be sorted by clicking on the column headers
Variable Relevance for measuring this variable Operational limitations Explanation
Leaf Area Index (LAI) 4 - fair Coarse spatial resolution. Ku-band scatterometer sensitive to LAI
Sea-ice type 1 - primary No specific limitation. Scatterometer, Ku-band (around 13.3 GHz). Type interpreted as age/roughness
Snow cover 3 - high Coarse spatial resolution.. Thick snow only. Scatterometer in Ku-band (around 13.3 GHz)
Snow status (wet/dry) 3 - high Coarse spatial resolution.. Thick snow only. Scatterometer in Ku-band (around 13.3 GHz)
Snow water equivalent 5 - marginal Coarse spatial resolution.. Ground stations network needed. Scatterometer in Ku-band (around 13.3 GHz)
Soil moisture at surface 3 - high Coarse spatial resolution.. Strongly affected by vegetation. Scatterometer in Ku-band (around 13.3 GHz)
Wind speed (near surface) 1 - primary Over sea only. Ku-band scatterometer around 13.3 GHz
Wind vector (near surface) 2 - very high Over sea only. Ku-band scatterometer around 13.3 GHz