Author: Duane S. CooleyPublisher:
ISBN:
Category : Weather forecasting
Languages : en
Pages : 20
Book Description
Long-term Verification Trends of Forecasts by the National Weather Service
Author: Duane S. CooleyPublisher:
ISBN:
Category : Weather forecasting
Languages : en
Pages : 20
Book Description
Probability Forecasting
Author: Lawrence Ambrose HughesPublisher:
ISBN:
Category : Precipitation forecasting
Languages : en
Pages : 96
Book Description
Book Catalog of the Library and Information Services Division: Author-title-series indexes
Author: Environmental Science Information Center. Library and Information Services DivisionPublisher:
ISBN:
Category : Book catalogs
Languages : en
Pages : 512
Book Description
Scientific and Technical Aerospace Reports
Author: Monthly Catalog of United States Government Publications
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1932
Book Description
Monthly Catalog of United States Government Publications, Cumulative Index
Author: United States. Superintendent of DocumentsPublisher:
ISBN:
Category : United States
Languages : en
Pages : 1408
Book Description
Future of the National Weather Service Cooperative Observer Network
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309061466
Category : Science
Languages : en
Pages : 77
Book Description
Advances in Satellite Meteorology
Author: Pavel Nikolaevich BelovPublisher:
ISBN:
Category : Astronautics in meteorology
Languages : en
Pages : 96
Book Description
Book catalog of the Library and Information Services Division
Author: Environmental Science Information Center. Library and Information Services DivisionPublisher:
ISBN:
Category :
Languages : en
Pages : 514
Book Description
An Appraisal of the Short-range Forecast Problem Using Power Spectra
Author: H. Stuart MuenchPublisher:
ISBN:
Category : Atmospheric temperature
Languages : en
Pages : 44
Book Description
Skill-scores, relative to climatology, for some parameters such as ceiling/visibility and precipitation are much lower than others, such as minimum temperature and pressure gradients. Also, the skill-scores have been improving appreciably faster for forecasts of 36 h (and more) than for forecasts of 24 h (and less). At the shortest ranges, less than 12 h, skill-scores relative to persistence are rather low, with values of 0.0 to 0.5 as typical. Power spectra for wind, temperature, dew point, rainfall rate, cloud reflectivity, and extinction coefficient (inversely related to visibility) were computed for periods of 10 min to 20 days, using fall season data from northeast United States. Analyses of these spectra indicate some of the problems in forecasting. Wind, temperature, and dew point spectra all had considerably more power at periods longer than 24 h than did rainfall rate, cloud reflectivity, and extinction coefficient, which relates to differences in forecast skill-scores. The greatest contribution to change for 2- to 8-h forecasts comes from disturbances with periods of about 8 to 32 h. Disturbances with periods shorter than about 24 h are purposedly filtered from current operational numerical models, in order to improve performance over longer ranges. The disturbances filtered out may be relatively unimportant to wind and temperature forecasts but quiet important for cloud and precipitation forecasts. Disturbances with periods less than about 2 h cannot be adequately resolved temporally or spatially using current weather data, yet these disturbances have sufficient amplitude to contribute noise in the analyses of longer period disturbances.