ISCCP SO FAR (at 30) GOALS Facilitate "climate" research Determine cloud effects on radiation exchanges Determine cloud role in global water cycle Issue of Feedbacks was implicit but climate monitoring not intended, only estimating magnitude of interannual variability Radiance Calibration: Decreased Absolute Uncertainty, Decreased Relative Uncertainty (More Homogeneous) Ancillary Data: Revised for Homogeneity, Improved Resolution and Physical Detail Cloud Detection: Sensitivity Increased Slightly, Method now Homogeneous in Polar Regions Cloud Retrieval: Improved Ice Cloud Model, Revised Particle Sizes, Aerosol Effects Included Surface Retrieval: Aerosol Effects Included, IR Emissivities Used Products: Increased Spatial Resolution, More Product Levels, Missing Values Filled in Gridded Products, All Gridded Products in NetCDF ISCCP SO FAR Facilitate Research Removed All Obstacles to Using Satellite Radiances Sampling to Reduce Volume Standard Format across all Satellites (READ software) Common Absolute Calibration Produced Globally Merged & Homogeneous Products Hierarchical Product Design for Different Purposes Original Image Format & Labeling for Algorithm Development Gridded & High Time Resolution for Process Studies Gridded & Time Averaged for Climatological Studies ITS EASY WHEN YOU KNOW HOW TO DO IT 35 Geostationary Satellites 15 Polar Orbiting Satellites Analysis Procedure Accomplishments Principles of Cloud Detection Defined & Quantified Quantified Sampling-Averaging Effects on Results Pioneered Radiative Model-Based Retrievals Pioneered Merged Multi-Instrument Analysis Pioneered Multi-Data-Stream Analysis CLOUD AMOUNT CLOUD TOP PRESSURE CLOUD TOP TEMPERATURE CLOUD WATER PATH LIQUID DROPLET RADIUS ICE CRYSTAL RADIUS TOA NET RADIATION & CLOUD EFFECTS SRF NET RADIATION & CLOUD EFFECTS ATM NET LW RAD & CLOUD EFFECTS HEAT TRANSPORT ATMOS OCEAN Cloud Effect Atmos Ocean CLOUD EFFECT ON ATMOSPHERE Heating Cooling Heating STORMS Precipitation Onset Radiation Budget HEATING COOLING PRECIPITATION RATE MESOSCALE CONVECTION CYCLONE TRACKS CYCLONE HEATING WEATHER STATES RADIATION PRECIPITATION GLOBAL CLOUD REGIMES = WEATHER STATES ITS 42!! CVS DISTRIBUTIONS FOR GLOBAL WEATHER STATES 500 MB VERTICAL VELOCITY DISTRIBUTIONS FOR GLOBAL WEATHER STATES ISCCP CLIMATOLOGY 2009 CA=66.4% PC=573mb TAU=3.9 TC=261.6K Cloud Amount Anomalies in Regions of Large and No View Angle Changes ISCCP Version D to Version H Radiance Calibration: Decreased Absolute Uncertainty, Decreased Relative Uncertainty (More Homogeneous) Ancillary Data: Revised for Homogeneity, Improved Resolution and Physical Detail Cloud Detection: Sensitivity Increased Slightly, Method now Homogeneous in Polar Regions Cloud Retrieval: Improved Ice Cloud Model, Revised Particle Sizes, Aerosol Effects Included Surface Retrieval: Aerosol Effects Included, IR Emissivities Used Products: Increased Spatial Resolution, More Product Levels, Missing Values Filled in Gridded Products, All Gridded Products in NetCDF BACKUP SLIDES Research Accomplishments > 9,000 Citations (since 2011) Implying Product Usage Different Diurnal Phases for Different Cloud Types over Ocean and Land Different Types of Tropical Convection Suggestion of Thin Clouds at Tropical Tropopause First Quantitative Global Distributions of Cloud Top Temperature and Optical Thickness First Global Distribution of Liquid Cloud Droplet Size Quantification of Cloud Effects on TOA Radiative Fluxes & Surface Radiative Fluxes & Radiative Flux Profiles Connection of Cloud Optical Properties with Classical Cloud Types -- - Global Weather States Precipitation versus Storm Types Climatology Programmatic Influences of ISCCP (aka the Acronym Lecture) NASA: EOSDIS, REASONS, MEASURES ESDR NOAA/EUMETSAT CDR & Development of R2O Procedures WCRP: WGSM WOAP WDAC But Mainly GEWEX Radiation Panel (now GDAP) GCOS ECV Multi-agency collaboration CEOS/CGMS SCOPE-CM (GEO) GEWEX Data Assessments Development of Maturity Index Global HX Picture Composite of Diabatic Heating of Atmosphere with Cyclone Strength GLOBAL CLOUD REGIMES = WEATHER STATES Effect on Cloud Amounts of IR Calibration Error Effect on Cloud Amounts of VIS Calibration Error Uncertainty +6% 6% +6% 4% Surface Temperature Anomalies RTOVS ATOVS TOVS RTOVS Algorithm Changes GEWEX JOINT DATA PRODUCT (19982012) ISCCP Cloud Properties (19792012) GPCP Precipitation (19792012, daily from 1998) SRB TOA & SRF Radiative Fluxes (19792012) SEAFLUX Ocean Surface Turbulent Fluxes (19922012) LANDFLUX Land Surface Turbulent Fluxes (19922012 ICEFLUX Surface Turbulent Fluxes [??] Atmospheric Temperature-Humidity (19792012) Ozone and Aerosols (19792012) Snow, Glacier, Sea Ice and Ice Shelf Cover (19792012) Topography and Surface Types Net at TOA : +2.5 (7) Net at Surface: 120 (11) SW : -101 (9)LW : -238 (4) Numbers in brackets indicate ranges of spread; all values are given within 0.5 W/m 2. SW : +342 SW : +192 (11)LW : +344 (2)LW : -394 (14) Observational Radiation Budget from ISCCP/SRB/CERES averaged over 03/2000 to 02/2004 Color scale for both maps SW : -22 (3) SW div: +73 (4)LW div: -188 (3) LW : 0 Greenhouse Effect: +156 (3) SW : -48 (5)LW : +27 (1)LW : 0 SW : -56 (15)SW : -6 (2)LW : ~0 (3)LW : +32 (8) Color scale for both maps Numbers in brackets indicate ranges of spread; all values are given within 0.5 W/m 2. Total Net at Surface: -18 (11) Total Net at TOA: -22 (3) Cloud Radiative Effects on Observational Radiation Budget from ISCCP/SRB/CERES averaged over 03/2000 to 02/2004 SW div : +1 (7)IR - Greenhouse Effect: +27 (2)LW div : -5 (2) SW : +342