Global Energy and Water Cycle Experiment

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Global Energy and Water Cycle Experiment
GOES Users Conference Climate Hydrology
Applications
Dr. Paul D. Try, Director
International GEWEX Project Office
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OBJECTIVES
? Determine the Hydrological Cycle by Global
Measurements
? Model the Hydrological Cycle and its Effects
? Predict Response to Environmental Change
? Improve Observing Techniques and Data
Assimilation Systems
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PRIMARY FOCUS
Role of Energy and Water in Climate
Cooling
Warming
Water
Clouds
Vapor
Aerosols
Precipitation
Evaporation
BRIDGING MULTISCALE GAP
INTEGRATING DISCIPLINES
Cooling
Warming
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COMPONENTS
Role of Energy and Water in Climate
Cooling
Warming
International
Clouds
Water

Satellite Cloud
GEWEX
Aerosols
Vapor
Climatology Project
(ISCCP)
Water Vapor Project
GEWEX Cloud System
Studies (GCSS)
(GVaP)
Global
Precipitation Climatology
Precipitation
Project (GPCP)
Evaporation
Global Runoff Data
Biogeochemistry
Center (GRDC)
Cooling
Warming
Land Surface Modeling / Data Projects

GACP - Global Aerosol Climo Project
GLASS
ISLSCP
(PILPS/GSWP)
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VALUE ADDED PRODUCTION!
ISCCP
Merged into Global Datasets
SRB
CD-ROM
GVaP
Individual
Sensors
RAOBS
Sfc/Space
ISLSCP
GAUGES
GPCP
PHYSICAL-
BIOGEOPHYSICAL
SCIENCES
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GLOBAL DATA SETS
New Satellite Launches
1982 1984 1986 1988 1990
1992 1994 1996 1998 2000
2002 2004
C1 and C2
ISCCP (Clouds)
ISCCP 2
D1 and DX
SRB (Radiation)
Version 2
Version 1.1
GVAP (Water Vapor)
GVAP
NVAP
Version 2
GPCP (Precipitation)
ISLSCP (Land-Surface)
Initiative II
Initiative I
III
GACP
GACP (Aerosols)
Hatched lines represent planned data sets
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ISCCP PRODUCTS
ISCCP Products
Reanalyzed 17 yr data set 83 - 99 (0.5x0.5 deg)
by Fall 01
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ISCCP Addresses IPCC Climate Issue
Global Aerosol Indirect Effect
Large albedo increases over oceans -- little over
land
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Surface Radiation Budget (SRB) Project
GEWEX SW Downwelling Radiation June 1992

• 17 yr 83-99
• SW LW 1X1 deg 3hr/d/mo
  planned by late 01

• Preliminary 85-88 CD ROM SW (only)
  available for 2.5X2.5 deg mnthly

• Based on ISCCP input -- biomass burning
  corrections and validation (GEBA/BSRN) data
  included -- uncorrected corrected fields planned

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New SRB Ver 2 1x1o SW/LW Data Sets
SW Downward Surface Fluxes
SW Cloud Radiative Forcing
October 11, 1986 _at_ 1800Z
1x1o, 3 hrly Data
LW Downward Surface Fluxes
LW Cloud Radiative Forcing
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Global Precipitation Climatology Project
20 year pattern of global precipitation
LAND
OCEAN
Three new GPCP products -- 20 year monthly
(2.5x2.5) -- 20 year Pentad (5 dy) (
shows MJO ) -- 1x1 degree daily since 97
TOTAL
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GPCP New 20 yr Monthly Product
GPCP 1979 - Present shows interannual variability
in tropical regions -- El Nino Events
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GPCP New 20 yr Pentad (5dy) Product
Monthly
Pentad
GPCP Pentad data in tropical regions -- shows
Madden-Julian Oscillation (MJO) Events
Ref P. Xie, NWS/NCEP/CPC
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New 1x1 Degree GPCP daily Product
GPCP Daily 1x1 degree images of Hurricane Mitch
Daily Image legend
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PERSIANN System for Hydrological Applications
Precipitation Estimation from Remotely Sensed
Information using Artificial Neural Networks
Rainfall accumulation for 6 hrly, daily, 5 day
and monthly
Monthly 1x1 degree from 30 min 0.25 degree
GOES-IR data
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PERSIANN System for Hydrological Applications
Precipitation Estimation from Remotely Sensed
Information using Artificial Neural Networks
GOES Input
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Water Vapor Applications
Water Vapor Transport Index
Global UTH _at_ 6.7 By EUMETSAT
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GPCP Results Support IPCC
... climate change will lead to an
intensification of the global hydrological cycle
and can have major impacts on regional water
resources.
95 IPCC --
Global Distribution of Observed Moisture Recycling
Using GPCP TOVS Pathfinder (also GVaP) data
sets!
Ref Chahine et al , 1997
Zonal Average Recycling Rate per Month
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ISLSCP CD ROM
2 yr 1x1 deg coregistered data sets
10 yr data set (87-96) planned for 02
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Continental-Scale Experiments (CSEs)
Tundra
Rain Forest
CATCH
Semi-arid
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Large-Scale Biosphere-Atmosphere Experimentsin
Amazonia (LBA)
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Regional CSE GOES Applications
( direct from www page for LBA )
WET AMC Campaign - LBA 99 Meteorological
Satellites Applications Group - CPTEC/INPE Goes
8 Imagery Regions Amazon and Experiment 99
field. Images for visible channel (VIS, 1),
water vapour channel (WV, 3), thermal infrared
(IR, 4) and composed (RGB coloured, channels
14). Winds over South America Routine product
at CPTEC, based on GOES 8 imagery (channels IR
and WV). Wind vectors Solar radiation Daily
solar irradiation fields over Experiment area.
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CONTINENTAL SCALE EXPERIMENTS
New Satellite Launches
1996
1997
1998
1999
2000
2001
2002
2003
LSA-SW
Coordinated Enhanced Observing Period (CEOP)
LSA-NC
GEWEX Continental Scale Experiment (GCIP)
LSA-East
LSA-NW
Large-Scale Area (LSA)
GAPP
Mackenzie GEWEX Study (MAGS)
MAGS II
CAGES
BRIDGE
Baltic Sea Experiment (BALTEX)
GAME-Tropics
GAME-Subtropics
GAME Phase II CEOP Asian Monsoon Project
GEWEX Asian Monsoon Experiment (GAME)
GAME-Tibet
GAME-Siberia
LBA
Large Scale Biosphere-Atmosphere Experiment in
Amazonia (LBA)
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Coordinated - EOP (CEOP)
Enhanced Observational Period - 2001-2003
Impacts All of GEWEX
gt Global data sets gt CSEs Process studies gt
Modelling gt Intra/Inter GEWEX/WCRP
To address the influence of continental
hydroclimate processes on the predictability of
global atmospheric circulation and changes in
water resources -- with particular focus on the
heat source and sink regions .
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CEOP Satellite Exploitation
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Global Perspective
Model Globally for Prediction
Observe
Understand
Apply
Locally
Local/Regional
GEWEX CSEs