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what other purpose??
There are two types of chaff, aluminum foil and aluminum-coated glass fibers. The foil type is no longer manufactured, although it remains in the inventory and is used primarily by B-52 bombers. Both types are cut into dipoles ranging in length from 0.3 to over 2.0 inches. They are made as small and light as possible so they will remain in the air long enough to confuse enemy radar. The aluminum foil dipoles are 0.45 mils (0.00045 inches) thick and 6 to 8 mils wide. The glass fiber dipoles are generally 1 mil (25.4 microns) in diameter, including the aluminum coating which is 0.12 f 0.06 mils thick. A new superfine glass fiber chaff is being manufactured that is 0.7 mil (17.8 microns) in diameter.
If it's large enough to work to reflect radar it's too large for SRM. If its small enough for SRM it's too small to reflect radar.
Originally posted by Afterthought
reply to post by Aloysius the Gaul
(Regarding how chaff interferes with radar)
what other purpose??
SRM.
Please try to keep up.
Originally posted by Phage
reply to post by Afterthought
I'm sure you've got plenty of SRM sources which provide information about the particle sizes which would be used, and why.
edit on 3/1/2012 by Phage because: (no reason given)
The effectiveness of geoengineering is strongly dependent on the type or particle and the particle size deployed. Most studies of geoengineering focus on the release of SO2 or H2S gas into the stratosphere where over time (~1 month), they are converted to condensable H2SO4. Recent work by Pierce et al has shown that directly emitting H2SO4 allows better control of particle size6 and therefore more effective reflection of incoming flux. For the purposes of this study, we have assumed the geoengineering payload is a liquid with a density of 1000 kg/m3 (In gas pipe analysis, a density of 1.22 kg/m^3 is assumed), emitted as a vapor. The larger geoengineering particles, the faster they settle out of the atmosphere. If they are too small, they do not effectively scatter incoming solar flux. The peak scattering effectiveness of H2SO4 aerosols is about 0.2 microns (Mie theory). To achieve the proper particle size, the vapor must be emitted at a rate that prevents particles from coagulating into large particles. Analysis7 has shown that a release rate of 0.1 to 0.003 kilograms per meter travelled by the aircraft limits coagulation. For the purposes of this study, concepts of operations are designed around a release rate of 0.03kg/m. However, in some cases higher rates are required due to limitations on airplane range or dispersal method.
Why are you baiting her with info you already know?
At least this way I'll know if I can take your word for things if you're not going to back them up.
Originally posted by Phage
Glass fibers will not stay suspended for long, they fall. They are also too large to be effective for SRM. In order to be effective, SRM particles would be of submicron sizes.
Originally posted by burntheships
Originally posted by Phage
Glass fibers will not stay suspended for long, they fall. They are also too large to be effective for SRM. In order to be effective, SRM particles would be of submicron sizes.
Proof?
Radar observations show that chaff can spread over several hundreds
of miles and stay in the air for up to a day.
So even so, this does not rule out sulfer in the jet fuel
, and self levitating nano particles.
Talk about disinfo!
You don't believe me when I post easy to understand sources.
-- a person, book, document, etc. that provides information: to consult various sources
-- to identify the source of (information, quotations, etc.)
There are two types of chaff, aluminum foil and aluminum-coated glass fibers......
Originally posted by Aloysius the Gaul
reply to post by burntheships
You were replying to a post of Phage's which had this as the subject :
There are two types of chaff, aluminum foil and aluminum-coated glass fibers......
Again, you didn't provide a 'source'. You provided a statement. A 'source' backs up a statement.
Originally posted by Afterthought
reply to post by Aloysius the Gaul
(Regarding how chaff interferes with radar)
what other purpose??
SRM.
Please try to keep up.
Contrail cirrus form in airmasses which have insufficient moisture for the formation of natural cirrus.
In addition, the study highlights for the first time that contrail cirrus are capable of reducing natural cloud coverage and optical depth by consuming moisture that would otherwise be available for growth and maintenance of the natural clouds.
The change in cirrus coverage, calculated by vertically overlapping all ice clouds in a column (Fig. 4b), confirms that the natural-cirrus coverage is decreased owing to the presence of contrail cirrus.
Contrail cirrus exist alongside and interact with natural clouds and, depending on their overlap with natural clouds, can increase overall cloud coverage
Please explain those characteristics of contrails which would prevent the ice crystals of which they are composed from falling and thus carry moisture to lower levels.
cirrus clouds have been found to be composed of primarily nonspherical ice crystals with shapes ranging from solid and hollow columns to plates, bullet rosettes, and aggregates, and with sizes spanning from about 10 to thousands of micrometers.
Based on a number of recent field experiments, contrails were found to predominantly consist of bullet rosettes, columns, and plates with sizes ranging from about 1 µm to about 100 µm.
Persistent contrails often develop into more extensive contrails in which the ice supersaturation is generally too low to allow cirrus clouds to form naturally.
A single aircraft operating in conditions favorable for persistent contrail formation appears to exert a contrail-induced radiative forcing some 5000 times greater (in W m?2km?1) than recent estimates of the average persistent contrail radiative forcing from the entire civil aviation fleet.