NC Media Watch

A quest for reason and accuracy in letters to the editor, guest editorials and other issues of interest to the citizens of Western Nevada County.

Monday, September 19, 2005

Global Warming Update: NASA Sats to collect cloud data

NASA’s CloudSat, will go up around 26 October 2005 to study clouds and their impact on our long term weather patterns, part of the Presidents Climate Change Review Program. Cloudsat will look at the internal structure of clouds, kind of a cat scan for clouds structures. The data will enable scientists to refine current climate change models. Clouds control how much energy flows in from the sun and out to into space through the atmosphere. They are the the doorway to climate change.

Scientist do not know enough about clouds to model this doorway for the climate models being used by the climate change alarmists hoging the news In two years scientist will have vital modeling data, for these models. Part of my climate change skepticism is based on the lack of real world cloud data in the current climate change models. How often do you see clouds? Only 15 percent of the earths air is clear of clouds, with 85 percent with some cloud cover. Would you trust a model that ignored 85 percent of the sky? Really?

CALIPSO will also be launched on the same mission, and will provide vital data on aerosols. Aerosols also reflect sun light and provide a host for water vapor to form rain drops and ice pellets. We know very little about these vital parts of the earths climate management systems. Where do the come from, how high do they go, and how many are in the air. Again scientists need more data to accurately model future climate change. Data that is currently not available to accurately model climate change. Again, current climate models do not have this vital aerosol data.

So, in the next two to three years we will have more accurate data on how the atmosphere modulates the earths energy cycle. A vital component to climate change predictions which have been missing in current predictions of global warming. Hummmm.

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Blogger Frederic Christie said...

What are you talking about? Current models are very complex, including surface reflectivity in a number of complex ways. For example: Global warming increases precipitation, precipitation makes clouds which increases reflectivity. All of the good models take this into account. But reflectivity is really a drop in the bucket compared to greenhouse gasses. Even with all the known cooling and warming effects taken into account, the models confirm what study has shown: the globe is warming to disastrous effects.

Mon Sep 19, 11:56:00 PM PDT  
Blogger Russ Steele said...

Could you please point me to a mdoel that consider the complex nature of clouds. According to the NASA briefing these satellites will provide critical data missing in the current models. Is NASA wrong?

Tue Sep 20, 07:56:00 AM PDT  
Blogger Frederic Christie said...

What I imagine NASA means is that the precise mechanisms of how energy can be circulated and how clouds contribute to reflectivity and similar will be understood, but those influences are orders of magnitude too small to form counter-warming pressures.

This is a good quote indicating how complex these models are (and yes, the precise mechanisms and variables vary quite a bit, which is why different models yield different results, hence the truly surprising fact that the vast majority conclude warming is valid):

"As the prospect of considerable change in the atmosphere becomes more real and threatening, new computer models are being applied to the problem. These models take into account the natural processes that must be part of the whole picture to understand what could happen to Earth's climate as carbon dioxide increases.

An important aspect of the newer models is their treatment of the "amplifier" or feedback effect, in which further changes in the atmosphere occur in response to the warming initiated by the change in carbon dioxide.

In addition to moisture and cloud processes, the newer models are beginning to take into account the role of vegetation, forests, grasslands, and crops in controlling the amount of carbon dioxide that actually will be in the atmosphere.

Along with their role as "sinks" for carbon dioxide, the various types of vegetation in the biosphere have further effects on climate."

Not just cloud processes but even the way vegetation may create or absorb heat or alter climate is taken into account.

Tue Sep 20, 09:37:00 AM PDT  

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