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Geostationary atmospheric sounding by formation flight aperture synthesis

Geostationary atmospheric sounding by formation flight aperture synthesis
Geostationary atmospheric sounding by formation flight aperture synthesis
This paper introduces a multi-satellite approach to passive microwave interferometric radiometry applied to geostationary atmospheric sounding at 53 GHz. The concept applies satellite formation flight to the currently operational interferometric techniques to extend the achievable microwave aperture sizes, leading to unprecedented spatial resolution for microwave radiometers. The presented configurations are capable of synthesising 14.4 m aperture and larger using SMOS-sized satellites, and spatial resolution better than 16.7 km at 53 GHz from the geostationary orbit. Two instrument concepts are proposed: Single-Element Companion concept and Array Duplicate concept, both of which are scalable, where the achievable spatial resolution is extendible and constrained only by the number of satellites in the constellation. The performance of both concepts are simulated, and the results show that the interferometer is highly sensitive to uncertainties in inter-satellite position measurements, where measurement errors as small as 6 mm result in 6.3 K root mean square error in radiometric accuracy.
2153-7003
IEEE
Sugihara El Maghraby, Ahmed Kiyoshi
2908d60c-5467-460b-b1a4-b76ea694f453
Grubisic, Angelo
a4cab763-bbc0-4130-af65-229ae674e8c8
Colombo, Camilla
595ced96-9494-40f2-9763-ad4a0f96bc86
Tatnall, Adrian
2c9224b6-4faa-4bfd-9026-84e37fa6bdf3
Sugihara El Maghraby, Ahmed Kiyoshi
2908d60c-5467-460b-b1a4-b76ea694f453
Grubisic, Angelo
a4cab763-bbc0-4130-af65-229ae674e8c8
Colombo, Camilla
595ced96-9494-40f2-9763-ad4a0f96bc86
Tatnall, Adrian
2c9224b6-4faa-4bfd-9026-84e37fa6bdf3

Sugihara El Maghraby, Ahmed Kiyoshi, Grubisic, Angelo, Colombo, Camilla and Tatnall, Adrian (2017) Geostationary atmospheric sounding by formation flight aperture synthesis. In 2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS). IEEE. 4 pp . (doi:10.1109/IGARSS.2017.8126944).

Record type: Conference or Workshop Item (Paper)

Abstract

This paper introduces a multi-satellite approach to passive microwave interferometric radiometry applied to geostationary atmospheric sounding at 53 GHz. The concept applies satellite formation flight to the currently operational interferometric techniques to extend the achievable microwave aperture sizes, leading to unprecedented spatial resolution for microwave radiometers. The presented configurations are capable of synthesising 14.4 m aperture and larger using SMOS-sized satellites, and spatial resolution better than 16.7 km at 53 GHz from the geostationary orbit. Two instrument concepts are proposed: Single-Element Companion concept and Array Duplicate concept, both of which are scalable, where the achievable spatial resolution is extendible and constrained only by the number of satellites in the constellation. The performance of both concepts are simulated, and the results show that the interferometer is highly sensitive to uncertainties in inter-satellite position measurements, where measurement errors as small as 6 mm result in 6.3 K root mean square error in radiometric accuracy.

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20170109082017_415565_3069 - Accepted Manuscript
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More information

Accepted/In Press date: 23 July 2017
e-pub ahead of print date: 4 December 2017
Published date: 4 December 2017
Venue - Dates: 2017 IEEE International Geoscience and Remote Sensing Symposium, Fort Worth Convention Center, Fort Worth, United States, 2017-07-23 - 2017-07-28

Identifiers

Local EPrints ID: 417744
URI: http://eprints.soton.ac.uk/id/eprint/417744
ISSN: 2153-7003
PURE UUID: a40bea53-c161-4f6b-adfb-f69b268aaa95
ORCID for Ahmed Kiyoshi Sugihara El Maghraby: ORCID iD orcid.org/0000-0001-9183-1317
ORCID for Camilla Colombo: ORCID iD orcid.org/0000-0001-9636-9360

Catalogue record

Date deposited: 13 Feb 2018 17:30
Last modified: 16 Mar 2024 06:13

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Contributors

Author: Ahmed Kiyoshi Sugihara El Maghraby ORCID iD
Author: Angelo Grubisic
Author: Camilla Colombo ORCID iD
Author: Adrian Tatnall

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