![Confronting Models With Data: The GEWEX Cloud … Models With Data: The GEWEX Cloud Systems Study David Randall]' 2, Judith Curry 3, Peter Duynkerke 4' 5, Steven Krueger 6, Mitchell](https://static.fdocuments.net/doc/165x107/5ad1da187f8b9a72118c6c4f/confronting-models-with-data-the-gewex-cloud-models-with-data-the-gewex-cloud.jpg)
PowerPoint Presentation - JAXA...Aerosols and the Water Cycle. An Element of WCRP initiated by GEWEX...
9
Part-II(2007-2010) •Implementation of the CEOP-II Integrated Observation and Data System for the Global Energy and Water Cycle as planned in Part-I above; •Submit CIMS Results as a Contribution to WCRP Pan Monsoon Study; •Apply WESP results to an Extension of Down-scaling and transferability Studies and, thereby, as a contribution to the Integrated Water Resources Management (IWRM) process which is designed to assist countries in their endeavour to deal with water issues in a cost- effective and sustainable way. •Undertake and conclude a Cold Region Study in Cooperation with the WCRP Climate and Cryoshpere (CliC) Project and the International Polar Year (IPY) effort •Undertake and advance scientific goals related to understanding and defining Extreme Event Mechanisms •Undertake and advance knowledge of the interactions between Aerosols and the Water Cycle. An Element of WCRP initiated by GEWEX
Transcript of PowerPoint Presentation - JAXA...Aerosols and the Water Cycle. An Element of WCRP initiated by GEWEX...
Part-II(2007-2010)•Implementation of the CEOP-II Integrated Observation and Data System for the Global Energy and Water Cycle as planned in Part-I above; •Submit CIMS Results as a Contribution to WCRP Pan Monsoon Study;•Apply WESP results to an Extension of Down-scaling and transferability Studies and, thereby, as a contribution to the Integrated Water Resources Management (IWRM) process which is designed to assist countries in their endeavour to deal with water issues in a cost-effective and sustainable way.•Undertake and conclude a Cold Region Study in Cooperation with the WCRP Climate and Cryoshpere (CliC) Project and the International Polar Year (IPY) effort•Undertake and advance scientific goals related to understanding and defining Extreme Event Mechanisms•Undertake and advance knowledge of the interactions between Aerosols and the Water Cycle.
An Element of WCRP initiated by GEWEX
IMPROVED!
0
50
100
0 50 100
実測値(cm)
推定値
(cm)
New algorithm
Observed (cm)
Estim
ated
(cm
)0
50
100
0 50 100
実測値(cm)
推定値
(cm)
Old algorithm
Observed (cm)
Estim
ated
(cm
)
IMPROVED!
Old algorithm0 180 0
0
90
-90
▲▲
▲▲▲
▲
▲▲▲▲▲
▲▲▲
▲
▲
▲▲
▲▲
▲
●●
●▲▲▲
▲▲
▲
▲
▲
▲
●
●▲
▲▲▲ ● ▲
●● ●●
●
●
▲
●●
●
●
▲
■■ ■
■■■
■
■ ■■■■■
■
■■■■ ■■
■ ■
⊿SD：Average of Absolute Errors ⊿SD < 20cm : ▲⊿SD > 20cm : ●Out of Algorithm Applicability: ■
0 180 0
0
90
▲▲
▲▲▲
▲▲▲
▲
▲▲▲▲
▲▲
▲▲▲
▲
▲
▲▲
▲▲▲
▲▲▲
▲
▲ ●
●
●● ●
●
●
▲▲▲▲
▲
▲▲●
▲▲
▲
▲
▲▲▲
▲
▲▲
▲
▲
●
●
●▲
▲ ▲
▲
▲
▲▲ ●
▲▲
▲
▲ ●
▲
●
New algorithm in this study
RTM over Ocean
36.5 GHz - horz 89.0 GHz - vert
Emission (Background)Wind, Temp, Salinity
ScatteringNumber of Particles => Snowfall
Absorption + EmissionTemperature, Cloud Water
SnowfallRadar Reflectivity
Cloud Top
Snowfall [g/m2] Snow + Cloud Water
Snow + Cloud Water + Windspeed
Snowfall [g/m²]: Snow + Cloud Water
Data Assimilation• Model Operator => Land Surface Model
Predict the state after Δt from initial conditions and forcing data.
PhysicalSnow Model
• Model Operator => Snow Model SNOWPACKPredict the snow properties from initial conditions and forcing data.
PrecipitationTemperature
Radiation
Satellite Data
• Observation Operator => Radiative Transfer Model Calculate the expected TB for predicted state.
RadiativeTransferin Snow
• Observation Operator => Radiative Transfer Model Calculate the expected TB for predicted snow state.
Optimization Problem
Results: Precipitation & Density
<= Precipitation
Density =>
Part-II(2007-2010)•Undertake and conclude a Cold Region Study in Cooperation with the WCRP Climate and Cryoshpere (CliC) Project and the International Polar Year (IPY) effort
An Element of WCRP initiated by GEWEX
•Reference Site Network in Arctic •Satellite Algorithm Development snowpack, snowfall•Data Assimilation in Cold Region• WESP in Cold Region
CliC-CEOP Closer Cooperative Framework Need!
