The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners.
As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.
i
Error characteristics of satellite-derived winds
-
1979
Details:
-
Personal Author:
-
Corporate Authors:
-
NOAA Program & Office:
-
Description:Errors of winds derived from geostationary satellite measurements are estimated by analysis of differences between satellite and rawin observations. It is estimated that the NESS winds contain root mean square errors (rmse) of 4.7 m s-1 for low levels and 8.5 m s-1 for upper levels. These errors stem from the "noise" inherent in measuring cloud displacements and errors introduced by meteorological influences. "System noise," evaluated by three independent techniques, amounts to rms vector magnitudes of 2.5 to 3.0 m s-1 for picture pair vectors and about 4 m s-1 for manual vectors. These figures pertain only to clouds tracked with infrared imagery.
The accuracy of these data can be increased by reducing system noise, but improving their meteorological value can be realized only by modifying procedures to enable clouds to be tracked in meteorologically active regions.
-
Keywords:
-
Series:
-
Document Type:
-
Rights Information:Public domain
-
Compliance:Library
-
Main Document Checksum:
-
Download URL:
-
File Type: