학술논문
Solar Radio Observations from Soil Moisture and Ocean Salinity (SMOS) Mission
Document Type
Conference
Source
IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium Geoscience and Remote Sensing Symposium, IGARSS 2018 - 2018 IEEE International. :4111-4114 Jul, 2018
Subject
Language
ISSN
2153-7003
Abstract
Soil Moisture and Ocean Salinity (SMOS) is an Earth Explorer European Space Agency (ESA) mission launched in November 2009, in excellent operational status with plans to continue its operational phase beyond 2019. The payload of SMOS consists of the Microwave Imaging Radiometer using Aperture Synthesis (MIRAS) instrument, a passive microwave 2-D interferometric full polarization radiometer, operating at 1.413 GHz (wavelength of 21 cm). Due to the orbit geometry and the size of the MIRAS's antennae the Sun appears in the antenna field of view and direct Solar radio observation is captured by MIRAS. The retrieved L-band Sun brightness temperature is a valuable signal that can be further used for research in the fields of solar observation and space weather. The paper presents the preliminary results of a comparison exercise between estimated Sun brightness temperature from SMOS images (processor version v720) and various ground-based radio-telescope measurements: from the Humain solar radio telescope operated by “Observatoire royal de Belgique”, from USAF Radio Solar Telescope Network (RSTN) and from the Nobeyama Radio Polarimeter of the National Astronomical Observatory of Japan for both Sun flares events and quite Sun condition. The comparison of the data sets has shown a strong timing correlation and a good correspondence.