Investigación

Proyectos vigentes

SEASTARex - Technical Assistance to Earth Explorer 11 Seastar Phase 0 Campaign

Equipo

Physical and Technological Oceanography Department (ICM-CSIC)

Acrónimo

SEASTARex

IP

IP: Adrien Martin (NOC), Marcos Portabella (IP parte CSIC). Otros partners: Metasensing, Radarmetrics, Ifremer, Hereon

Resumen

SEASTAR is an innovative satellite mission concept submitted in 2020 by the National Oceanography Centre (NOC) and its large international science team in response to the ESA Earth Explorer 11 call for mission ideas. SEASTAR is one of four mission candidates recommended by ESA’s Advisory Committee for Earth Observation (ACEO) to proceed to Phase 0. The SEASTAR Synthetic Aperture Radar (SAR) instrument is an along-track interferometer (ATI) that can measure the phase difference between two SAR images of the same scene taken within a short time-lag. The system is currently assumed to function in Ku-band. SEASTAR has two pairs of antennas looking 45° forward and 45° backward to provide squinted ATI measurements, accompanied by a broadside beam, to provide measurements for a total of three different azimuth directions. As such, simultaneous total surface current vector (TSCV) and ocean surface vector wind (OSVW) can be derived from the instantaneous measuments at very high spatial resolution (around 1 km from a satellite platform, and only a few meters from an aircraft platform). The main task of ICM is to analyse the feasibility of the new airborne demonstrator, the so-called Ocean Surface Current Airborne Radar (OSCAR), to derive high-resolution, high quality OSVW data.

Actividades del proyecto

Atividades del proyecto (CSIC): 1) Ocean target based calibration, i.e., numerical ocean calibration, of the OSCAR backscatter measurements.; 2) Adaptation of the official scatterometer wind data processor, i.e., the EUMETSAT Numerical Weather Prediction Satellite Application Facility (NWP-SAF) Pencil-beam Wind data Processor (PenWP), to retrieve OSVW from OSCAR data.; 3) Preliminary analysis of the OSVW data quality.

Fecha inicio

28/10/2022

Fecha finalización

01/11/2023

Organismo financiador

National Oceanography Centre (NOC)

Cuantía

649.928 EUR (50.000 EUR, parte CSIC)