CALIBRATION ANDRE-PROCESSING STATUS

• Calibration Status–VIS will be completed in September– IR will be completed in October–Microwave ready back to 98, earlier ???

• Re-processing Sequence:

Ancillary will be completed in September

ISCCP/GPCP will start in November

SRB will start in January

SeaFlux & LandFlux will start in March

VIS CAL Evaluation Summary

AVHRR vs MODIS & NOAA Cal

ISCCP Biased LOW by ≤ 3%, RMS ≤ 4%

(Except NOAA-17 at 8% & 9%)

Afternoon Satellites Generally Agree

Some Degradation Trends Need to be Adjusted

(NOAA-7 & 17 but NOT NOAA-9 or 18)

Some Re-evaluations of Degradation Record

(Especially Morning Satellites, NOAA-10 & 12)

COMPARISONS TO NOAA-9 and NOAA-18

RE-EVALUATIONS

RE-EVALUATIONS

VIS CAL Evaluation Summary

MODIS-DCC Calibration of 12 Geos – Gain

ISCCP Biased LOW by 2-4%, RMS 2-4%

ISCCP Results Noisier than Doelling Results

A Few Degradation Trend Differences

Some “Local” Discrepancies

VIS CAL Evaluation Summary

Overall Evaluation of Accuracy:

About 3% “ABSOLUTE”

BUT

What is Uncertainty of Moon?

What is Uncertainty of MODIS?

What is Uncertainty of Earth Targets?

Common Data Format

• 1 Degree Equal-Area Mapping (0,0 is corner)• 3 hr 1 day Time intervals (lowest common?)

– (month/year) file names• Binary – Byte Coding

– reserved missing data code• Fixed Variable Arrays• Area statistics and joint histograms• netCDF4 format

ISCCP Status Overview

• Processing– D-Version Completed: July 1983 – December 2009 (26.5 yr)– B1 Deliveries up to date– Calibration Finished thru December 2009 (SCC ends 2011)

• Revisions– Cloud Detection Algorithm Finished for B1U w polar revision– Cloud Retrieval Revisions Finished (still testing) except for

aerosols & land reflectance

• Re-engineering– Code Modernized, Adapted to B1U/GAC & Ported– NCDC has run complete version– Still have to Revise Ancillary Inputs– New Products (H-Version) Designed

VIS Monitor PM Orbiters

MODISPOINT

Estimated Relative Uncertainty

FINAL ISCCP D-VERSION CLIMATOLOGY

CA = 66.3% TAU = 3.9

PC = 572 mb TC = 261.6K

FINAL ISCCP D-VERSION CLIMATOLOGY

TS = 288.7K RS = 0.14

NEW DATA PRODUCTS• B1U Radiances

• ANCILLARY: Lnd/Wtr Mask & Topography, Landcover, Ozone, Merged Snow-Ice, Atmospheric Temperature & Humidity

• HXS: high-res, pixel (10 km), single-satellite (like old DX)• HXG: high-res, pixel, global (global-DX reduced to common

variables, in netCDF)

• All gridded products in netCDF• HGS: high-res, gridded (1°), single-satellite (DS-plus)• HGG: high-res, gridded, global (like old D1, merged DS)• HGH: high-res, gridded, hourly-monthly mean (like old D2)• HGM: high-res, gridded, monthly-mean (like old D3)

• FH Radiative Flux Products (INPUT, PROF, TOA, SRF, MON)

Remaining Tasks & Re-Processing Plan

• IR calibration and/or revise spectral treatment

• Testing whole system

• Reviewing whole record for small glitches -- QC development

• Re-processing plan:– Start with 2009 incorporating FY-2C/E– Re-process in reverse chronological order– Process 2010 incorporating Brazil-GOES as soon as Calibration Ready– Finish whole record adding 2011

• Replace/revise VIS calibration procedures – after start

JOINT PRODUCT DESIGN& SUGGESTED USES

• Joint Product Design (List Contents -- Handout)

• Suggested Uses– Characterize Exchanges (and imbalances) for

• Forced Variability (diurnal, seasonal)• Weather-scale Variability (aka Internal Modes, convective,

baroclinic)• Slow modes (MJO, interannual, ENSO, etc)

– Generation of APE– E&W Transports & their Variations– Exchange Process Studies

POLAR PRIORITIES

• Sea Ice Surface Temperature

• Better Atmospheric Temperature Profiles

• Precipitation

• Cloud Vertical Structure

SUGGESTED MODEL DIAGNOSTICS

• Distributions of diabatic heating

• Composite Weather State Variation Statistics

• Forced Modes: Amplitude & Phase

• Internal Modes: Variance with Space-Time Scales

• Slow Modes: Frequencies of Occurrence, Geographic Patterns, Amplitude Distributions