EO·Atlas
HY Scatterometer
Ku-band scatterometer flown on HY-2D.
HY Scatterometer (HSCAT) on HY-2D is a Ku-band conically scanning pencil-beam scatterometer for sea-surface wind vector measurement.[1][2] It uses active microwave radar scatterometry with two conically scanning beams that provide multiple azimuth views of each wind vector cell.[1][2] The operating frequency falls in Ku band at 13.25 to 13.3 GHz.[1][2] The geometry provides a 1300 km swath, 25 km standard resolution and 50 km best-quality resolution.[1] The rotating dish is 1 m and spins at 20 rpm, with HH and VV spot beams at 42 and 49 degrees incidence and fore/aft views in each wind vector cell.[2] Ku-band wind retrievals are sensitive to rain; moderate and heavy rain can create bogus wind retrievals, so quality-control flags are part of the HY-2D retrieval context.[2] Comparable Ku-band HSCAT instruments fly on HY-2B and HY-2C, forming a series of similar scatterometers across the HY-2 ocean-dynamics satellites.[1]
Pricing not publicly listed by operator
Supply chain position
- [1]WMO OSCAR instrument record: HSCATcommunity-2026-06-16
- [2]OSI SAF Product User Manual for HY-2 windsagency doc2022-11-042026-06-16
- [3]Intercalibration of Backscatter Measurements among Ku-Band Scatterometers Onboard the Chinese HY-2 Satellite Constellationpeer reviewed-2026-06-16
How to cite this page
Plain text
HY Scatterometer. EO-Atlas, SpectraWorks B.V. https://eo-atlas.org/products/component/hscat (CC BY 4.0)
BibTeX
@misc{eoatlas:products:component:hscat,
title = {HY Scatterometer},
author = {{EO-Atlas}},
publisher = {SpectraWorks B.V.},
note = {CC BY 4.0},
url = {https://eo-atlas.org/products/component/hscat}
}