Observation from space of meteorological fields at the scale of regional Numerical Weather Forecast models

Perona, G. and Notarpietro, R. and Gabella, M. and Speranza, A. (2003) Observation from space of meteorological fields at the scale of regional Numerical Weather Forecast models. Il nuovo cimento C, 26 (6). pp. 579-595. ISSN 1826-9885

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In this paper we report the results of feasibility studies concerning the use of radars on polar orbiting space-platforms for the direct observation of meteorological fields (in particular large-scale vertical velocity) that are crucial in the initialisation and verification of models for NWF (Numerical Weather Forecast). Specifically, we have made reference to LAM (Limited Area Models) with horizontal grid-size of the order of 10 km that is typical of models currently used for service operations at regional scale. The original motivation of the research reported in this paper was to study the possibility of using the “Cassini radar” from the International Space Station (ISS), having as observational target the sub-synoptic features connected with intense precipitation in the Mediterranean area. Possible generalizations to other instruments (in particular, a clear-air satellite-based radar) and other phenomenologies (rain fields) have been considered later and are also reported. Although these fields (in particular large-scale vertical velocity) have always been known to play a central role in atmospheric dynamics, they were never directly used since they were not measurable. The main result of our work is that these fields begin nowadays to enter the range of observability.

Item Type: Article
Uncontrolled Keywords: Spaceborne and space research instruments, apparatus, and components (satellites, space vehicles, etc.) ; Remote observing techniques ; Telemetry: remote control, remote sensing; radar ; Atmosphere
Subjects: 500 Scienze naturali e Matematica > 550 Scienze della Terra > 551 Geologia, Idrologia, Meteorologia
Depositing User: Marina Spanti
Date Deposited: 13 Mar 2020 16:40
Last Modified: 13 Mar 2020 16:40
URI: http://eprints.bice.rm.cnr.it/id/eprint/15183

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