きょう行ってきた。ダ・ヴィンチ展。4月10日までなので行ってない人は是非。前の桜もちょうど見頃。#ダ・ヴィンチ展

Observing the Ozone Hole from Space: A Science Success Story

Using our unique ability to view Earth from space, we are working together with NOAA to monitor an emerging success story – the shrinking ozone hole over Antarctica.

Thirty years ago, the nations of the world agreed to the landmark ‘Montreal Protocol on Substances that Deplete the Ozone Layer.’ The Protocol limited the release of ozone-depleting chlorofluorocarbons (CFCs) into the atmosphere.

Since the 1960s our scientists have worked with NOAA researchers to study the ozone layer. 

We use a combination of satellite, aircraft and balloon measurements of the atmosphere.

The ozone layer acts like a sunscreen for Earth, blocking harmful ultraviolet, or UV, rays emitted by the Sun.

In 1985, scientists first reported a hole forming in the ozone layer over Antarctica. It formed over Antarctica because the Earth’s atmospheric circulation traps air over Antarctica.  This air contains chlorine released from the CFCs and thus it rapidly depletes the ozone.

Because colder temperatures speed up the process of CFCs breaking up and releasing chlorine more quickly, the ozone hole fluctuates with temperature. The hole shrinks during the warmer summer months and grows larger during the southern winter. In September 2006, the ozone hole reached a record large extent.

But things have been improving in the 30 years since the Montreal Protocol. Thanks to the agreement, the concentration of CFCs in the atmosphere has been decreasing, and the ozone hole maximum has been smaller since 2006’s record.

That being said, the ozone hole still exists and fluctuates depending on temperature because CFCs have very long lifetimes. So, they still exist in our atmosphere and continue to deplete the ozone layer.

To get a view of what the ozone hole would have looked like if the world had not come to the agreement to limit CFCs, our scientists developed computer models. These show that by 2065, much of Earth would have had almost no ozone layer at all.

Luckily, the Montreal Protocol exists, and we’ve managed to save our protective ozone layer. Looking into the future, our scientists project that by 2065, the ozone hole will have returned to the same size it was thirty years ago.

Make sure to follow us on Tumblr for your regular dose of space: http://nasa.tumblr.com

デニーズのモーニング。今度行ってみよう。

このことに気がついて受験票に目が行ったひとってある種才能があると思うんだけど。 出題ミスかも知れないが問題解決能力に優れているという意味では大いに評価しても構わない気もする。

おおちゃく...

結局一からサイトを編集するのやめて既存のテーマを使わせていただきました。 おおちゃく者ですね。ハイ。 さてそろそろこっちも時間があればグダグダ動かしていこうと思います(何度目だまったく)。 それではまた

Hello.

I still is making Tumblr's home page. this work is very hard.but I can belieave I perfect this work.

AiKaBuガチ勢のSKE48野村実代、株価暴落におこ「合言葉は 売らないでね！ です(^^)！」

【悲報】株価暴落まる(｀・ω・´) ｜野村実代｜ブログ｜SKE48 Mobilehttp://www2.ske48.co.jp/blog/detail/id:20180114222130949 皆さん！AiKaBuで遊んでいますかー？ どうもAiKaBuガチ勢みよまるです 画像を見てください。ストップ安と続落がついています これは危機。。。！と思いきやチャンスです！！！ 今の私の株価は85000YL！今が買い時です☆ しかし。売りが7000以上も出ています(TT)誰ですか。こんなに売ったの。 おこです みんなで力を合わせてまた株価上げましょうね！ 合言葉は売らないでね！です(^^)！ 頑張りましょう♪ みなさんぜひAiKaBuで遊んでくださいね(^_-)-☆そして、私の株主様になってください！ よろしくお願いしますっ 全文はこちら (more…)

View On WordPress

(https://www.youtube.com/watch?v=1LLAN29W-4wから)

桜咲く #sakura #kiryu

\begin{equation} x^{3y-1} \end{equation}