https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf 23.6 2026-03-19T10:41:57.720Z https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/instruments/2eb2b23d-b5eb-459b-b364-e18780900f96 2016-08-25 ALTIKA Altimeter Date=2021-08-04 User Id=sritz Entity=AltLabel Operation=INSERT System Note=insert AltLabel New Value=id: null category: primary text: ALTIKA Altimeter language code: en Date=2016-08-25 User Id=mpmorahan Entity=BroaderRelation Operation=INSERT User Note=Insert Concept System Note=add broader relation New Value=ALTIKA Altimeter [2eb2b23d-b5eb-459b-b364-e18780900f96,277823] - Radar Altimeters [92ddaaca-40b2-4936-bc1a-28cc5743e8b8,259513] Date=2016-08-25 User Id=mpmorahan Entity=Definition Operation=INSERT System Note=insert Definition New Value=id: null text: AltiKa, a Ka-band altimeter The altimeter named AltiKa onboard Saral uses a single frequency in Ka-band. It is the first oceanographic altimeter using such a high frequency. It is much less affected by the ionosphere than one operating at Ku-band, and has greater performance in terms of vertical resolution, time decorrelation of echoes, spatial resolution and range noise. But its main drawback is that Ka-band electromagnetic waves are sensitive to rain. language code: en AltiKa, a Ka-band altimeter The altimeter named AltiKa onboard Saral uses a single frequency in Ka-band. It is the first oceanographic altimeter using such a high frequency. It is much less affected by the ionosphere than one operating at Ku-band, and has greater performance in terms of vertical resolution, time decorrelation of echoes, spatial resolution and range noise. But its main drawback is that Ka-band electromagnetic waves are sensitive to rain. 2021-08-04 17:00:46.0