Sentences with phrase «numerical model forecasts»

A reanalysis system is a global large scale numerical forecast model (currently a numerical approximation of the ill posed hydrostatic system, e.g. the ECMWF model) that assimilates (inserts or mixes) observational data in with the numerical model forecast in an attempt to obtain a better set of global data.

Not exact matches

I will not answer this question in a quantitative way, which may disappoint those who want numerical forecasts; in fact, I will be making a few criticisms of the simple models that are often employed for this purpose.

«It's impressive, considering that current state - of - the - art numerical weather models, such as NOA's Global Forecast System, or the European Centre for Medium - Range Weather Forecasts» operational model, are only skillful up to one to two weeks in advance,» says paper co-author Cory Baggett, a postdoctoral researcher in the Barnes and Maloney labs.

«Consequently, global «water vapor winds» are estimated from the movement of these features and used in numerical weather models to improve long - range forecasts,» Chesters said.

Apart from ground stations, weather forecasts are heavily dependent on weather satellites for information to start or «initialize» the numerical weather prediction models that are the foundation of modern weather prediction.

Bill Lapenta, acting director of NOAA's Environmental Modeling Center, heads that translation effort, which churns out numerical forecasts for 12, 24, 36, 48 and 72 hours ahead and beyond.

«Given the promise shown by the research and the ever increasing computing power, numerical prediction of hailstorms and warnings issued based on the model forecasts, with a couple of hours of lead time, may indeed be realized operationally in a not - too - distant future, and the forecasts will also be accompanied by information on how certain the forecasts are.»

They then perform numerical experiments to see if their models can predict these storms better than the original forecasts using new, improved techniques.

I was working for the Omani Meteorological Department when the implementation of a numerical weather forecasting model prompted the need for some local knowledge in numerical weather predictions.

On the basis of magnetic data collected in real time and a chain of suitable numerical models it will eventually prove possible, rather as in conventional meteorology, to forecast space weather and prevent the impact of solar storms on Earth.

The Mathematics of the Weather is a forum for the discussion of new numerical approaches for use in numerical forecasting, climate modelling and research into numerical modelling of the atmosphere.

Boyle, J.S., et al., 2005: Diagnosis of Community Atmospheric Model 2 (CAM2) in numerical weather forecast configuration at Atmospheric Radiation Measurement (ARM) sites.

Sea surface temperature (SST) measured from Earth Observation Satellites in considerable spatial detail and at high frequency, is increasingly required for use in the context of operational monitoring and forecasting of the ocean, for assimilation into coupled ocean - atmosphere model systems and for applications in short - term numerical weather prediction and longer term climate change detection.

Many numerical weather prediction centers now use coupled ocean - atmosphere models to produce ensemble forecasts on the subseasonal time scale.

Mikhail Tolstykh is an expert for global numerical weather prediction models to develop medium - range and seasonal forecasts.

Their prediction is based on the quantity of incoming solar radiation and uses 16 - day forecasts from a numerical weather prediction model (WRF).

Traditionally numerical weather prediction has advanced progressively by improving single, «deterministic» forecasts with an increasing model accuracy and decreasing initial condition errors.

Zhang and Lindsay, 4.4, + / - 0.4, Model These results are obtained from a numerical ensemble seasonal forecasting system.

All our forecasts and reanalyses use a numerical model to make a prediction.

ERA - Interim combines information from meteorological observations with background information from a forecast model, using the data assimilation approach developed for numerical weather prediction.

Meteorological observations from radiosondes are also applied to benchmark the numerical weather prediction models used to forecast day - to - day weather.

The ECMWF provides its supercomputer - run Integrated Forecasting System, a world - renowned numerical weather prediction model, as a basis for some Copernicus services, such as atmospheric forecasts and reanalysis data.

And this is also the difference between numerical weather forecast and climate projection with climate models.

Much of this progress is due to advances in numerical weather prediction, that is, the use of computer models which approximate the fluid motions of the atmosphere to create forecasts of the weather at some time in the future.

This study examines the horizontal distribution of cirrus clouds by means of satellite imagery analyses and numerical weather prediction model forecasts.

NOAA meteorologists use a suite of sophisticated numerical models and high - tech tools to forecast tropical storms and hurricanes.

It is worth noting that some high - resolution operational numerical weather prediction models have demonstrated reasonable ability in forecasting tropical cyclones.