jump to navigation

Polar Albedo Feedback December 23, 2008

Posted by honestclimate in Global Cooling.
Tags: , ,
trackback

Polar Albedo Feedback

From Watts Up With That, December 20, 2008

by Steven Goddard

Today is a day of note in Antarctic.  The sun has reached it’s highest point in the sky, and never sets.  The amount of incoming solar radiation is at it’s peak for the year, and the radiation balance is strongly affected by the reflectivity (albedo) of the surface.  Open ocean absorbs much of the the sunlight, whereas ice reflects it back out into space.One of the most popular global warming feedbacks is considered to be changes in the extent of polar ice.  The story goes that as the ice melts, more heat gets absorbed in the ocean, leading to higher temperatures.  Today we test that theory.

According to NSIDC, Antarctic ice extent is nearly 20% above normal, as seen in the graph and map below.

https://i0.wp.com/nsidc.org/data/seaice_index/images/daily_images/S_timeseries.png
https://i0.wp.com/nsidc.org/data/seaice_index/images/daily_images/S_daily_extent.png

Read the rest, click here

Comments»

No comments yet — be the first.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: