Skip to main content
U.S. flag

An official website of the United States government

Dot Gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

HTTPS

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Impacts of Adding/removing Satellite and Dropsonde Data On Winter Storm Forecast Accuracy Over The United States

Abstract

In the event of a gap in satellite data, Unmanned Aircraft Systems (UAS) may be useful to partially mitigate a loss in accuracy when forecasting high-impact weather events. We conduct Observing System Simulation Experiments (OSSEs) to investigate the impacts of satellite data and UAS data on the forecast accuracy of two winter storms. The NCEP Global Forecast System (GFS) is initialized with and without simulated data from numerous NOAA and NASA satellites and UAS dropsondes simulated from the ECWMF T511 Nature Run. Forecast energy error at 3-day lead times increases by an average of about 10% when nine satellites are removed, and this increase in error is mitigated when UAS data over a large portion of the Pacific Ocean is added. We investigate the impacts of removing specific satellites, and adding UAS data over smaller regions/flight paths on forecast accuracy as well as the causes of forecast errors.

Article / Publication Data
Active/Online
YES
Available Metadata
Fiscal Year
Published On
January 01, 2017
Type
Event

This publication was presented at the following:

Title
2017 - 97th AMS Annual Meeting
Sponsor
Amer. Meteor. Soc.
Type
Conference presentation

Institutions

Not available

Authors

Authors who have authored or contributed to this publication.

Not available