Transcript ppt - WMO

Weather Modification Research
(Item 3.10.1)
10th WMO Scientific Conference on Weather
Modification &
Expert Team on WMR meeting
Bali, Indonesia, October 2011
• About 100 scientists from 29 countries
• hosted by the Indonesian Agency for the
Assessment and Application of Technology
(BPPT)
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• The conference focussed on the following
topics:
– WMR and cloud and precipitation processes:
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Observational and laboratory studies;
Modelling studies;
Seeding material and methods of delivery;
Data analysis and statistical methods
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– WMR and the physical and socio-economic
environment:
• Environmental issues, user requirements and costbenefit studies
• Inadvertent weather modification, Climate Change and
Geo-engineering
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• presentations
– scientific results
– operational experience in WM supported by research
– winter cloud seeding:
• the State of Wyoming
• Australia
new tools - dual polarization radars and satellite products used.
– Queensland program in Australia on summertime
convective clouds.
– the Indian Institute of Tropical Meteorology and the Bureau
of Royal Rainmaking and Agricultural Aviation in Thailand
• aerosol-cloud interaction and cloud modification utilizing the latest
technologies;
• summer monsoon clouds.
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• special evening session: on the status of
weather modification
– outstanding scientific question,
– critical issues to enhance the scientific basis,
– global and regional cooperation,
– capacity building
– funding mechanisms required
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• a special session on geo-engineering
– links between geo-engineering and weather modification.
– although geo-engineering proposals aiming at changes in
cloud microphysical properties of clouds has some links to
weather modification techniques, the scale of suggested
applications is different.
– updates to the WMO statement on weather modification
will include geo-engineering ideas related to cloud
modification.
– caution should be applied when attempting to modify
elements of the weather/climate system.
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GEOENGINEERING: BACKGROUND AND POSSIBLE
ROLES FOR WMO
• Collaborative work with WCRP
• Solar radiation management
– Brightening marine clouds,
– Introducing reflective aerosols into the
stratosphere,
– Making parts of the Earth’s surface more reflective.
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• Carbon dioxide removal
– Land-based methods
– Ocean-based methods
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• Role for WMO
– WMO programmes/activities relevant to
geoengineering
• the WCRP (modeling and projections related to climate
change)
• the Weather Modification Research under CAS;
• GAW, (research in the chemical and aerosol composition
of the atmosphere)
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• WMO to
– provide scientifically sound information and advice
on geoengineering.
– to suggest resources channeled towards
addressing the uncertainties of aerosol/cloud
interactions within the radiation balance, through
physical, chemical and modeling studies.
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• This process to be initiated by a joint CAS/WCRP
workshop with the following aims to:
– Do a scientific review of current proposed technologies,
their scientific understanding and the uncertainties
involved and based on this, draft a WMO statement on the
status of geoengineering;
– Identify the key scientific questions that should be address
through modeling and field experiments or preferably, a
combination of both;
– Identify a number of joint research projects and their
funding mechanisms, to address the identified key
scientific questions;
– Investigate the need to establish a scientific body that
could steer these activities in future.
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