Dependence of forecast limits on the spatial resolution of the measurements used to initialize a forecast model
A calculation of the dependence of forecast limits on the spatial resolution (that is, the effective observation density) of the meteorological data used to initialize a forecast model is demonstrated. The calculation uses the fact that the effective error-energy spectrum of meteorological measureme...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Borntraeger
1993-10-01
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| Series: | Meteorologische Zeitschrift |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1127/metz/2/1993/244 |
| _version_ | 1797320866349973504 |
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| author | R. M. Jones J. M. Wilczak T. M. Georges |
| author_facet | R. M. Jones J. M. Wilczak T. M. Georges |
| author_sort | R. M. Jones |
| collection | DOAJ |
| description | A calculation of the dependence of forecast limits on the spatial resolution (that is, the effective observation density) of the meteorological data used to initialize a forecast model is demonstrated. The calculation uses the fact that the effective error-energy spectrum of meteorological measurements of a specific spatial resolution has a rapid transition from zero to 100 % of the background energy spectrum at a wavenumber corresponding to the smallest resolvable scale. For the forecast model of E. N. Lorenz (1969), doubling the data resolution by halving the smallest resolvable scale from 78 to 39 km, for example, extends the forecast limit by 1.4 h. |
| first_indexed | 2024-03-08T04:49:12Z |
| format | Article |
| id | doaj.art-fb88fc01ad2f4e1d8fd7136e2eff0ed3 |
| institution | Directory Open Access Journal |
| issn | 0941-2948 |
| language | English |
| last_indexed | 2024-03-08T04:49:12Z |
| publishDate | 1993-10-01 |
| publisher | Borntraeger |
| record_format | Article |
| series | Meteorologische Zeitschrift |
| spelling | doaj.art-fb88fc01ad2f4e1d8fd7136e2eff0ed32024-02-08T08:08:25ZengBorntraegerMeteorologische Zeitschrift0941-29481993-10-012524424510.1127/metz/2/1993/24489610Dependence of forecast limits on the spatial resolution of the measurements used to initialize a forecast modelR. M. JonesJ. M. WilczakT. M. GeorgesA calculation of the dependence of forecast limits on the spatial resolution (that is, the effective observation density) of the meteorological data used to initialize a forecast model is demonstrated. The calculation uses the fact that the effective error-energy spectrum of meteorological measurements of a specific spatial resolution has a rapid transition from zero to 100 % of the background energy spectrum at a wavenumber corresponding to the smallest resolvable scale. For the forecast model of E. N. Lorenz (1969), doubling the data resolution by halving the smallest resolvable scale from 78 to 39 km, for example, extends the forecast limit by 1.4 h.http://dx.doi.org/10.1127/metz/2/1993/244meteorological measurementsforecast modelmeteorologische messungenvorhersagemodell |
| spellingShingle | R. M. Jones J. M. Wilczak T. M. Georges Dependence of forecast limits on the spatial resolution of the measurements used to initialize a forecast model Meteorologische Zeitschrift meteorological measurements forecast model meteorologische messungen vorhersagemodell |
| title | Dependence of forecast limits on the spatial resolution of the measurements used to initialize a forecast model |
| title_full | Dependence of forecast limits on the spatial resolution of the measurements used to initialize a forecast model |
| title_fullStr | Dependence of forecast limits on the spatial resolution of the measurements used to initialize a forecast model |
| title_full_unstemmed | Dependence of forecast limits on the spatial resolution of the measurements used to initialize a forecast model |
| title_short | Dependence of forecast limits on the spatial resolution of the measurements used to initialize a forecast model |
| title_sort | dependence of forecast limits on the spatial resolution of the measurements used to initialize a forecast model |
| topic | meteorological measurements forecast model meteorologische messungen vorhersagemodell |
| url | http://dx.doi.org/10.1127/metz/2/1993/244 |
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