Global Ensemble Forecast System (GEFS) [1 Deg.]

Description

The Global Ensemble Forecast System (GEFS) is a weather forecast model made up of 21 separate forecasts, or ensemble members. The National Centers for Environmental Prediction (NCEP) started the GEFS to address the nature of uncertainty in weather observations, which are used to initialize weather forecast models. The proverbial butterfly flapping her wings can have a cascading effect leading to wind gusts thousands of miles away. This extreme example illustrates that tiny, unnoticeable differences between reality and what is actually measured can, over time, lead to noticeable differences between what a weather model forecast predicts and reality itself. The GEFS attempts to quantify the amount of uncertainty in a forecast by generating an ensemble of multiple forecasts, each minutely different, or perturbed, from the original observations. With global coverage, GEFS is produced four times a day with weather forecasts going out to 16 days and a 6 hour temporal resolution. This dataset has 1.0 degree horizontal resolution.

Resources

Name Format Description Link
Global Change Master Directory (GCMD) Keywords Unknown The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. Open resource
Global Change Master Directory (GCMD) Keywords Unknown The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. Open resource
Global Change Master Directory (GCMD) Keywords Unknown The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. Open resource
Global Change Master Directory (GCMD) Keywords Unknown The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. Open resource
Global Change Master Directory (GCMD) Keywords Unknown The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. Open resource
Global Change Master Directory (GCMD) Keywords Unknown The information provided on this page seeks to define how the GCMD Keywords are structured, used and accessed. It also provides information on how users can participate in the further development of the keywords. Open resource
Registry of Open Data on AWS Unknown Information on AWS data access. Open resource
NCEI GEFS Web Site Unknown Web site providing description and access links for the GEFS. Open resource
NOAA National Centers for Environmental Information (NCEI) Unknown NCEI home page with information, data access and contact information. Open resource
NCEI Direct Download (Dataset Files) Unknown Direct download for the dataset. Open resource
NCEI Dataset Order Unknown Select and order files in the offline archive. Open resource
NCEI Dataset Landing Page Unknown Landing page for the dataset. Open resource
NCEI Product Information Page Unknown Description of the data and related resources. Open resource
NCEI THREDDS HTML THREDDS Data Server (TDS) for the dataset. Open resource
EMC GEFS Web Site Unknown Web site providing overview and technical documentation for the GEFS. Open resource
EMC GEFS Web Site Unknown Web site providing overview and technical documentation for the GEFS. Open resource

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