Chennai, Mar 3 (UNI) SARAL (Satellite with ARgos and ALtika), an Indo-French
cooperative mission, has completed ten years of its services and its journey is
continuing, the Indian Space Research Organisation (ISRO) said today .
ISRO has provided the small satellite bus platform to which CNES payload
composed of ARGOS-3 and AltiKa instruments (altimeter, radiometer, DORIS,
LRA) are integrated.
SARAL was launched on February 25, 2013, from SDSC-SHAR Range, Sriharikota
onboard PSLV-C20.
The intended mission life was 5 years. But it has completed a decade of service
and is still continuing, ISRO said.
Imagined at the turn of the millennium, AltiKa is a technological breakthrough
that offered a Ka-band altimeter for the first time to measure the topography
of the surface of the oceans.
Altika enabled imaging the coasts, rivers and lakes with better resolution than
its predecessors. Lesser penetration depth of Ka-band waves into the snow or
ice than that of the lower frequency counterparts facilitated more accurate
measurement of the altitudes.
Besides contributing to the observation of the oceanic circulation of mesoscale
(between 50 and 500 km) essential to understanding the dynamics of the ocean
and its climatic impacts, AltiKa data are also widely used by glaciologists and
hydrologists.
Thanks to the efforts of ISRO, CNES, and EUMETSAT operational teams, SARAL
is relentlessly pursuing its work as an ocean surveyor for the benefit of the
international scientific community and the Copernicus Marine Service, ISRO
said.
UNI GV 1125