Fine, airborne particulate matter (PM) that is smaller than 2.5 microns (about one thirtieth the width of a human hair) can cause lung damage. Industrial practices like fossil fuel burning and agricultural fires produce most PM2.5aerosol particles. Despite efforts to curb these emissions, China continues to struggle with its air quality.
From space, the smog appears gray. The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured a natural-color image (top) of northeastern China on December 22, 2016. Heavy, gray smog shrouds parts of the country, while the brightest, whiter areas are likely clouds or fog. The second image shows the severity of haze as measured by satellite, with deepest reds indicating the most affected areas. The map is based on MODIS measurements of aerosol optical depth—how much sunlight the aerosol particles prevent from reaching the ground.
For full NASA post and interactive slider image tap here.
There is really a ton of visual pleasures out there beyond our everyday naked eye sight. (Maybe our eyes zoom and pan and focus too well, don’t they?)
Before iPhone 8 can do more amazing photography miracles, there are simple and inexpensive tools out there that will empower your already neat iPhone like those cool DSLR lenses. Above is what I got a few months ago and in this holiday season I am gonna use it to have a lot of fun. Here is a sample the iPhone took with it. Read More
At the latest Business Insider IGNITION conference, Henry Blodget teased up the Future of Digital 2016 with a collection of amazing slides, data and insights. The take away: social video is the next big thing! See selected slides below, and full original post here.
The trend is loud and clear: digital media consumption is exploding, and traditional TV is collapsing, especially among the younger demographics:
First recital at a new school, Juliet Music at Forest Hills Gardens.
Yoyo played Dance and Theme Variation a duet with teacher Alejandra and then Little Playmates by himself, error free:
FNN, November 24, 2016 1:01pm Beijing time – It is that time of the year again, as Americans express their loud thanks by busting any doors at shopping malls around the country, saving a few bucks while salvaging the US economy. This year, though, the Chinese have a quiet way of joining the Thanksgiving tradition.
November 2016 has been an eventful month in the US. Someone has made a moonshot in the most colorful presidential election. And here below are some of my moon shots, starting with the biggest full moon in almost a century on November 13, with a few variations of shutter speed, in GIF:
Dear President Trump,
Congratulations on being elected the 45th President of the United States.
In all seriousness though, I have to say climate change isn’t some scheme cooked up by the Chinese, which I am one of. Look at this chart below showing the historical CO2 emissions of the US, Asia and China, my best estimate is that China will probably catch up on the US as the biggest cumulative emitter by 2045-2050. But I am hoping that you will provide much needed leadership on this regard and push both the US and China to the positive direction and for the good of all humanity.
Now here are 10 most important GIF animated pictures/maps/etc. that you may want to have a quick read/watch before entering the White House: Read More
Here our family duo iPhones worked quietly to properly capture Yoyo’s second recital performance (sound not by Apple device) . We are really proud of how he handled the pressure, and he was the youngest, by a lot. Here below is a clip of his A Minuet for Mr. Bach’s Children. Click here for his first recital performance.
Earlier this year, I dived into the New York City public school application mechanism and studied everything inside out, upside down. By May, my family got the letter from the Department of Education notifying us that my son got into our dream school. And his first couple of weeks in this school have been nothing but perfect.
Now this is about something that is also close to my heart but is way out of my control, or out of control by our species at large. (Someone correct me if I am wrong , please!) I have also studied the question of climate crisis for a number of years and it is worrisome, and alarming to be precise.
First, take a look at the 20-year difference between these what I’d call heat maps, color coding the temperatures’ anomalies compared against the 1951-1980 average. In August 20 years ago, only Antarctica was boiling like a hot pot. This past month, the world map looks as orange (and red) like a U.S. presidential nominee. I don’t think there’s anything else that needs to be said about such a drastic change in just a generation. (For more about the maps and to generate your own months or versions, click on the links on “NASA” in captions.)
“On July 17, 2016, a huge stream of ice and rock tumbled down a narrow valley in the Aru Range of Tibet. When the ice stopped moving, it had spread a 30-meter-thick pile of debris across 10 square kilometers. Nine people, 350 sheep, and 110 yaks in the remote village of Dungru were killed during the avalanche. ”
In August 2016, heavy monsoon rains pushed the Ganges and other rivers in eastern and central India to the breaking point.These images use a combination of infrared and visible light to increase contrast between water and land. Water is blue. Vegetation is green. Notice that the water is a slightly lighter shade of blue in the lower image due to all the suspended sediment in the water.
纽约的这点雾霾（以上右图）对于见过世面的国人来说最多也就是点雾吧（这里看到的所谓的霾应该大多是臭氧）。即使就这点雾霾，也令地表空气和地面温度陡然升高，比海水高出近20华氏度，专家说，这些颗粒物和水汽会散发红外波段的“长波热辐射”，地面在阳光和这些辐射的共同作用下，温度就比周围环境高出许多。幸好雾霾在北京的夏天不是爆发季。拍摄者是 Nickolay Lamm，是几年前的一个7月用热成像相机在纽约拍摄的。
The water remains relatively cool (blue) all day while the Statue of Liberty warms up when exposed to the sun (red). A haze layer exits near the ground, and the particles and droplets in this layer emit “longwave thermal radiation” in the far infrared portion of the spectrum. The haze closest to the ground is relatively warm (red, orange), while the temperature decreases with increasing altitude (yellow to green to blue). The ground is heated both by sunlight and the longwave radiation emitted by the atmosphere. Haze layers over urban areas increase the longwave heating, especially overnight, and promote warmer temperatures.
This year’s rainy season and floods have wrecked havoc on the city of Wuhan, which was home to 127 lakes in its urban areas. Now the city has 38 lakes remaining. Even though this many have survived the dramatic urbanization and land reclamation over the past few decades, they have most likely shrunk a great deal. With many new neighborhoods on low-lying lands that used to be lakes, the battle against floods this year is a particularly difficult one. Here below are a couple of examples viewed from space, thanks to Google Earth and those who care to find these images. [Tap on the link in the above image’s caption for original Xinhua post in Chinese language.]
Shahu Lake (or literally translated as sandy lake) used to be the second largest lake after the East Lake in Wuhan City. Since 2000, due to the encroaching real estate development and urbanization, the lake has been divided by a road and surrounded by high-rise buildings (above). Read More