Just in case you haven’t seen enough snow this week, NASA and NOAA have released an amazing video made from GOES 13 weather satellite images. I present to you Snowpocalypse 2011:
[Set the resolution to 480p to see it best.]
The animation goes from January 31 to February 2, and you can really see how the wet air from the ocean and Gulf of Mexico gets slammed by incredibly cold arctic air that had screamed south, creating this enormous storm front that swept across the nation. I was in Nebraska when this hit; the night before it had been unseasonably warm, but then temperatures dropped a lot — like 40°C (65°F) — by the next day. Nebraska looked like another planet. Boulder didn’t get much snow (you can see from the animation that snow was mostly east of Colorado) but the temperatures were so cold they had to cancel schools; the fuel mix used in school buses wasn’t rich enough to start the engines!
The GOES satellites (Geostationary Operational Environmental Satellites, just so’s you know) orbit the Earth over the Equator at a height of about 40,000 km (24,000 miles) above the surface. This makes their orbital period 24 hours, so they orbit once for every time the Earth rotates once. Read More
For quite some time now, the evidence that the Earth is warming up has been piling up. Study after study has shown this, and that’s why the vast majority of scientists agree on it.
And now, to pile on even more, a large NOAA study has been released reiterating this fact:
The 2009 State of the Climate report released today draws on data for 10 key climate indicators that all point to the same finding: the scientific evidence that our world is warming is unmistakable. More than 300 scientists from 160 research groups in 48 countries contributed to the report, which confirms that the past decade was the warmest on record and that the Earth has been growing warmer over the last 50 years.
They looked at multiple indicators for temperatures, including sea levels, air temperature over land, air temperature over water, the sea surface temperatures, and more. All of them — all of them — indicate the Earth is warming.