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Table of contents

Spring 2005 Upgrade Package for North American Mesoscale (NAM) Decision Brief

Spring Upgrade Package

Spring Upgrade Package: 3DVar

Improved Surface Temperature Analysis Within the Eta 3DVar System

Spring Upgrade Solution to Allow Surface Temperatures To Be Turned Back On

Specifics of 2DVar Module

12hr/36hr/60hr Fits to Obs from a 5-day 2DVar Test

Error Correlations for Valley Ob Location Plotted Over Utah Topography

Level II.5 Wind Test June 2004 48hr

Sample Distribution (not yet complete) of Level II.5 Radial Wind Superobs Sites with Build 6.1

Spring Upgrade Package: Precipitation Assimilation

Precipitation Assimilation Changes

Impact of Simplifying Precipitation Assimilation

Long-term Impact on Soil Moisture Fields: snapshot of top 1-m soil moisture availability

Spring Upgrade Package: Prediction Model (Eta)

LSM changes (more) relevant to warm season

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LSM changes (more) relevant to cold season

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AFWA, CLAVRX total cloudiness (%) (12Z 13 December 2004)

Eta, EtaX scores from AFWA, CLAVRx 00&12Z Cloud Fraction (%) analyses from 20041212 – 20050110 verified from 32-km Grid 221 over CONUS

Eta, EtaX scores from AFWA, CLAVRx

January Frontal Case Rogers & Manikin

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Real-Time Parallel Stats Pages http://wwwt.emc.ncep.noaa.gov/mmb/mmbpll/pll12stats.etx_14dec04-20mar05/

NAM vs NAMX Quantitative Verification Statistics

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Winter : Forecast vs observations

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Spring : Forecast vs observations

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Summer : Forecast vs observations

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DGEX vs DGEXX Quantitative Verification Statistics

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Example of 500mb Height Differences

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Impact of Upgrades on DGEX

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Spring Upgrade Package: Products

24-h Visibility and Surface Hydrometeors (NAMX)

Improved Visibility Guidance

NCEP Service Center Evaluations SPC Steve Weiss

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NCEP Service Center Evaluations - SPC

NCEP Service Center Evaluations HPC Pete Manousos

NCEP Service Center Evaluations - HPC

NCEP Service Center Evaluations AWC Steve Silberberg

NCEP Service Center Evaluations - AWC

Summary

Author: Geoff Dimego / Eric Rogers

E-mail: eric.rogers@noaa.gov

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