Major organization : EUROPEAN CENTRE FOR MEDIUM-RANGE WEATHER FORECASTS (ECMWF
's preoperational ecPoint system includes more than 200 gridbox weather types, which actually depend on more than one variable.
The goal of this study was to quantify the accuracy of the ECMWF
rainfall data in comparison to meteorological station data, both in the Standardized Precipitation Index (SPI) and in the raw data, for monitoring meteorological drought in the state of Sao Paulo, considering a monthly time scale.
, and CMA ensemble forecast data from TIGGE project are used in this study; the horizontal resolutions for these forecast data are 1[degrees] x 1[degrees], 0.5[degrees] x 0.5[degrees], and 0.5625[degrees] x 0.5625[degrees], respectively.
In June 2013, Cray had announced the award of a contract to provide ECMWF
with two Cray XC30 supercomputers and a Cray Sonexion storage system.
The high resolution of the ECMWF
model means it's much better at what's called 'initialization' 6 the entering of initial atmospheric conditions which the forecast is built upon.
The London-based ECMWF
, however, said it does not 'give out weather forecasts and weather warnings to the general public or media'.
is responsible for acquiring, organizing and analyzing recent meteorological observations to generate 10-day weather forecasts for the 25 European States that support ECMWF
Global forecasts provided by the European Centre for Medium-Range Weather Forecasts (ECMWF
) are regularly used by RSMCs as well as commercial enterprises.
Both the CFS and the ECMWF
models exhibit a cool wet bias compared with CRU3 and GPCC/GPCP observations in JJA season (e.g., Tx is ~2[degrees]C below observed, ~ 2 mm/day above).
Cray's system is expected to improve ECMWF
's forecasting capabilities through increased resolution and model enhancements, as well as support ECMWF
's research programme.
Here, we focus mainly on the European Centre for Medium-Range Weather Forecasts (ECMWF
) ensemble (ENS) forecast system, which became operational in May 1994 (Palmer et al.