News News

Earth in the Eyes of Meteorological Satellites 30,000 kilometers away: Geological Unique Colors

date: 2019-01-07
Number of visits:: 13

3万公里之外气象卫星眼中的地球:地质独特色彩

The Institute of Atmospheric Research Cooperation(CIRA) released a map of the Earth in real color and 'Geological color'. In the geological color, the place covered by snow is white, the ground under the moonlight is purple, and the lights in most cities are yellow, but the ground and shallow water areas under the sun look like their real color.

 


3万公里之外气象卫星眼中的地球:地质独特色彩

  A stunning video recently released in Japan shows a 'geocolor' version of the earth from 22,000 miles away. The video was taken by the Himawari-8 meteorological satellite managed by the Japan Meteorological Agency. The satellite is in synchronous orbit over the Pacific Ocean. Before the video was released, a photo was released on February 10. The image also shows the real color of the earth. Scientists believe that this is the best portrait of the earth ever photographed.

3万公里之外气象卫星眼中的地球:地质独特色彩

  Earlier this year, Chali·laoaide, a satellite imaging analyst, used all the photos returned by the satellite within 24 hours of August 5, 2015, to synthesize a circular film about 12 seconds long. The name is Glittering Blue. The images taken by the Himawari-8 satellite are centered on Japan. Other areas captured include the Western Pacific, Australia, parts of Asia, Antarctica, and Alaska.

3万公里之外气象卫星眼中的地球:地质独特色彩

In a minute, the sun rises five times from the western horizon, moves eastward along the equator, and then sets in the East. 'I tried to correct the color in the video to make it look like the Earth that astronauts saw on the edge of the satellite and had been adjusted by the human eye. '

3万公里之外气象卫星眼中的地球:地质独特色彩

  The southern part of New Guinea and northern Australia are covered with turquoise colors, where the water is shallower and you can see the bright sand below.

According to Beijing time on February 18th, foreign media reported that Japan recently shot a shocking video, from 22,000 miles(35400 kilometers) away, presented a 'Geological' version of the earth.
The video was taken by the Himawari-8 meteorological satellite managed by the Japan Meteorological Agency. The satellite is in synchronous orbit over the Pacific Ocean. As can be seen from the video, the snow is covered in white, the ground under the moonlight is purple, and the lights in most cities are yellow, but the ground and shallow water areas under the sun look like their real color.
Before the video was released, a photo was released on February 10. The image also shows the real color of the earth. Scientists believe that this is the best portrait of the earth ever photographed.
It is reported that the natural color on the photo was restored by a new processing method called 'Simple Hybrid Contra Stretch'(SHCS). The technology was developed by the University of Wisconsin's Center for Scientific Engineering and the National Oceanic and Atmospheric Administration(NOAA). It uses a simple algorithm to synthesize four photos taken on different spectral bands(or on different frequencies of the electromagnetic spectrum), resulting in a photograph that restores the true color of the earth. And it is clearer than the real color pictures taken before.
The Himawari-8 satellite can return real color photos every 10 minutes, and at least one black and white photo can be returned every hour, allowing meteorologists to better study weather systems, such as convective clouds that will cause major storms. The accuracy of these pictures is about one-third of a mile(about 0.5 kilometers), which is twice the resolution of other meteorological satellites. However, while true color is useful, Geological color can better help scientists find unique geological features on Earth.
The Institute of Atmospheric Research Cooperation(CIRA) released a map of the Earth in real color and 'Geological color'. 'Geological color technology provides us with a simple but visually powerful method that allows us to seamlessly connect multiple sources of information at both vertical and horizontal latitudes. 'The Institute of Atmospheric Research Cooperation said.
'In the background of the geological color algorithm, the adjustable scaling ratio allows R&D personnel to adjust the relative size of transparency in both dimensions. 'This technology can greatly improve the quality of standard visible and infrared satellite images. 'The Himawari-8 satellite is in synchronous orbit above the Earth, so it can always stay in the same area above the Earth. For this satellite, this area includes Australia, Japan and other regions.
The instrument used to take photos is the Advanced Himawari Imager(AHI) mounted on the satellite. The Himawari-8 actually has a 'twin brother' who uses it to observe East Asia and the Western Pacific. The next satellite, Himawari-9, will be launched in 2016.
The term 'true color' is not really appropriate because it is not the color of the earth that humans can see with the naked eye. Most of the earth photos we see are color-corrected to show the color of the earth in our eyes. But this photo in this article was taken on multiple spectral bands, so it reflects the natural colors of the earth seen from space.
Earlier this year, Chali·laoaide, a satellite imaging analyst, used all the photos returned by the satellite within 24 hours of August 5, 2015, to synthesize a circular film about 12 seconds long. The name is Glittering Blue.
The images taken by the Himawari-8 satellite are centered on Japan. Other areas captured include the Western Pacific, Australia, parts of Asia, Antarctica, and Alaska. In a minute, the sun rises five times from the western horizon, moves eastward along the equator, and then sets in the East. 'I tried to correct the color in the video to make it look like the Earth that astronauts saw on the edge of the satellite and had been adjusted by the human eye. ' said Lloyds.
'My area of study is satellite imaging, and if someone thinks what they see has been' tampered with, 'I'm sensitive to this, but ordinary cameras automatically make color adjustments. 'We can see on television that trees were uprooted in the storm, utility poles were blown down, electric cars were blown into the air, and containers in the port were piled one by one. Typhoons, mostly found in the South China sea and the Pacific, often appeared in August, accumulating power at warm seas and then weakening as they blew across the continent.
Lloyd said that no satellite can show so much detail about the earth as the Himawari-8. Photographs taken by the satellite are centered on the equator and are concentrated near Jayapura in Indonesia. 'This angle is like being thrown around by a dancer. We can see their faces, but the light is always unpredictable. '
'The Himawari-8 satellite is much higher than the orbits of the International Space Station and the high-resolution imaging satellite, which orbits just beyond the Earth's atmosphere. 'If the Earth is just as wide as 30 centimeters in the video, the Himawari-8 satellite is located 85 centimeters away from it -- from this distance to your screen. It's like looking at the real earth from the Himawari-8 satellite. 'The amount of detail presented in the video is similar to what you can see with the naked eye. '
Why can't you see the city lights at night in the video?
Chali·laoaide pointed out on his website that the satellite's camera is used to shoot in daylight. Direct sunlight is 10,000 times brighter than the city street at night. Our eyes can adjust themselves, but the Himawari-8 sensors can not.
'If you 've ever shot with a hand bar, imagine that the camera has a shutter speed of 1/500, an aperture f/8, ISO 10. Lloyd said: 'In the sun, it can be exposed just right, but at night, you can't get a night view of the city. '
At night, you may also be able to distinguish the city's night view from the orbit of the Himawari-8 satellite. But unless it is around midnight at the vernal equinox or the autumnal equinox, and when the eclipse occurs, you still can't see anything. 'At other times, it's like lifting a piece of black paper toward the sun and trying to see a faint orange spot on the paper -- it's impossible to see anything. ' said Lloyds.


Related content
  • hot spot
  • up-to-date
  • media
A team of space scientists has captured new images of volcanic plumes as Io flies over Jupiter for the 17th time. Io is the most volcanic object in the solar system. Juno observed Io for more than an ...
2019 - 01 - 07
According to Xinhuanet Jilin Channel, the 'Jilin No. 1' spectrum 01 and 02 stars independently developed by Changguang Satellite Technology Co., Ltd. were developed and officially shipped on J...
2019 - 01 - 07
The traditional monitoring of air environmental quality is mainly based on the observation points distributed in the near land, and it is difficult to reflect the entire region. Satellite observation ...
2019 - 01 - 07
The solar system is home to the earth. In our eyes, the solar system is very large. The current technology of mankind can not get out of the solar system, but the solar system is just like dust in fro...
2019 - 01 - 07
The official operation of Fengyun No. 3 D Star and Fengyun No. 2 H Star and its ground application system on January 1 will further enhance the comprehensive capabilities of China's meteorological...
2019 - 01 - 07

025-86650036

(Monday to Friday 9:00 -18:00)

Copyright © 2018-2022 Nanjing Trust David Star Applied Research Institute All Rights Reserved
Address: 9th floor, Second Phase, No. 168 Lushan Road, Jianye District, Nanjing

Browse the cell phone cloud