SSM/I Surface Winds Statistics Archive

Here statistics which compare NCEP Operational¹ SSM/I Neural Network Algorithm (OMBNN3)
and Shared Processing Project Operational Algorithm (SPP) are accumulated.

Global Statistics (Bias & RMSE); +/- 1 hour temporal window and +/- 50 km spatial window

were used to create buoy SSM/I collocation.

All statistics are calculated using real time buoy data which are not quality controlled!!!

**Images in This Table Show Wind Speed Bias and RMSE (in m/sec).**
**Red curve - OMBNN3, blue curve- SPP algorithm**
Date	Wind Speed Bias in m/sec	Wind Speed RMSE in m/sec
Apr. 1 - Apr. 14
Mar. 16 - Mar. 31	Bias3_15-3_31.gif	RMSE3_15-3_31.gif
Mar. 1 - Mar. 15	Bias3_1-3_14.gif	RMSE3_1-3_14.gif
Feb. 16 - Feb. 28	Bias2_16-2_28.gif	RMSE2_16-2_28.gif
Feb. 1 - Feb. 15	Bias2_1-2_15.gif	RMSE2_1-2_15.gif
Jan. 16 - Jan. 31	Bias1_16-1_31.gif	RMSE1_16-1_31.gif
Jan. 1 - Jan. 15	Bias1_1-1_15.gif	RMSE1_1-1_15.gif
Dec. 10 - Dec. 31	Bias12_11-12_31.gif	RMSE12_11-12_31.gif
Nov. 26 - Dec. 10	Bias11_26-12_10.gif	RMSE11_26-12_10.gif
Nov. 11 - Nov. 26	Bias11_11-11_26.gif	RMSE11_11-11_26.gif
Nov. 4 - Nov. 19	Bias11_4-11_19.gif	RMSE11_4-11_19.gif
Oct. 28 - Nov. 12	Bias10_28-11_12.gif	RMSE10_28-11_12.gif
Oct . 21 - Nov. 4	Bias10_21-11_4.gif	RMSE10_21-11_4.gif

¹OMBNN3 is used at NCEP operationally since April 1998

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Please, send comments and questions to William Gemmill William.Gemmill@noaa.gov
or to Vladimir Krasnopolsky Vladimir.Krasnopolsky@noaa.gov

Last changed 20 November 2000