ALT Instrument

Identifieralt-hyNamesRadar AltimeterALT About identifiers

Measurements and Applications

Global ocean topography, sea level and gravity field measurements.

Instrument Summary

Full Name
Radar Altimeter
Status
Operational
Instrument Agencies
NSOAS, CAST
Maturity
Instrument Type
Radar altimeters
Geometry
Nadir-viewing
Instrument Technology
Radar altimeter
Sampling
Other
Data Access
Data Format

Performance Summary

Resolution
16 km
Swath
16 km
Accuracy
< 4 cm
Waveband
13.58 GHz and 5.25 GHz
MW (~0.1 cm - ~100 cm)

Instrument Missions

HY-2A - Ocean dynamics satellite A (2011 - 2022) hy-2a_alt-hy
HY-2B - Ocean dynamics satellite B (2018 - 2026) hy-2b_alt-hy
HY-2C - Ocean dynamics satellite C (2020 - 2026) hy-2c_alt-hy
HY-2D - Ocean dynamics satellite D (2021 - 2026) hy-2d_alt-hy
HY-2H - Ocean dynamics satellite H (2025 - 2028) hy-2h_alt-hy
HY-2G - Ocean dynamics satellite G (2025 - 2030) hy-2g_alt-hy
HY-2E - Ocean dynamics satellite E (2026 - 2031) hy-2e_alt-hy
HY-2F - Ocean dynamics satellite F (2026 - 2031) hy-2f_alt-hy

Instrument Measurements

CategoryParameter
Ocean topography/currentsSea level
Ocean dynamic topography
Ocean wave height and spectrumSignificant wave height
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