Archive for ‘BeiDou Navigation Satellite System’

01/05/2020

China launches mission to determine height of Mount Everest once and for all

  • Project will examine whether earthquake and changing wind speeds have affected peak’s snowcap
  • Survey team hoping the BeiDou satellite navigation system and other Chinese technology can help them find the answer
A Chinese team is preparing to determine the exact height of Mount Everest. Photo: AFP
A Chinese team is preparing to determine the exact height of Mount Everest. Photo: AFP
China is sending a surveying and mapping team to the summit of Mount Everest this month in a bid to end the long-running debate over the precise height of the world’s tallest mountain.
The mission was announced on Wednesday at one of the mountain’s base camps in Tibet, where a team of 53 surveyors has been making technical preparations since March 2. The team will use China’s BeiDou navigation satellite system and Chinese surveying instruments for the project.
Mount Everest – known as Sagarmatha in Nepal and Qomolangma in Tibet – lies in the Himalayas on the border between China and Nepal. The two countries have long disputed whether measurements of the mountain should include its snowcap or be limited to the rock base.
Nepal suspends Everest permits over coronavirus
In 2005, a Chinese expedition assessed the peak and measured the height from both the rock base and from the top of the snowfall. The result, a rock height of 8,844.43 metres (29,017.2 feet), was declared by China to be the most accurate and precise measurement to date.

Nepal has long held that Everest’s snowcap should be included, putting the iconic peak at 8,848 metres, a height which is widely accepted. However, geologists believe the snowcap may have shrunk by several centimetres after the magnitude 8.1 earthquake in 2015. Changing wind speeds are also believed to have affected it.

Chinese President Xi Jinping visited Nepal in October. Photo: EPA-EFE
Chinese President Xi Jinping visited Nepal in October. Photo: EPA-EFE
Following a state visit to Nepal by Chinese President Xi Jinping in October, the two countries agreed to jointly launch a scientific research project to determine the exact height of Everest, recognising the peak as “an eternal symbol of the friendship between the two countries”.

China’s natural resources ministry said the project indicated a new step in the friendship and highlighted the historical significance of the mission, which coincides with the 60th anniversary of the first Chinese ascent of the mountain’s north side as well as the 45th anniversary of China’s first precise measurement of the peak.

The results of the survey will be used for geodynamics research and the precise depth of the summit’s snowcap, meteorological and wind speed data will offer first-hand materials for glacier monitoring and biological environment protection.

In a separate development, China Mobile said on Thursday that the entire peak now had 5G coverage.
In a joint project with Huawei, 5G antennas were installed at the mountain’s advance base camp, at a height of 6,500 metres. Antennas were installed earlier in April at the lower base camp, at 5,300 metres and at 5,800 metres.
Source: SCMP
25/04/2019

China to promote space cooperation for UN sustainable development

CHANGSHA, April 24 (Xinhua) — China will promote international space cooperation to contribute to sustainable development goals set by the United Nations, a senior official with the China National Space Administration (CNSA) said here Wednesday.

“China is to build a new type of cooperative and win-win relationship with other space agencies and international organizations around the world, to jointly enhance the role of space industries in facilitating sustainable development,” said CNSA deputy director Wu Yanhua at the United Nations/China Forum on Space Solutions: Realizing the Sustainable Development Goals.

Over the years, the use of space has been recognized as one of the key components to successfully achieve the 17 Sustainable Development Goals (SDGs) of the 2030 Agenda for Sustainable Development adopted by the UN, according to Simonetta Di Pippo, director of United Nations Office for Outer Space Affairs.

In order to quantify the impact, a dedicated study was published in early 2018 and shows that around 40 percent of the 169 targets underpinning the 17 SDGs benefit from the use of geo-location and earth observation satellites, said Simonetta at the forum.

Committed to better service for countries along the Belt and Road Initiative, especially developing countries, China is constructing a space information corridor and sharing satellite resources, according to Wu.

“China’s earth observation satellites have actively supported the construction of the Belt and Road spatial information corridor, vigorously developed space international cooperation,” said Wang Cheng, a researcher from the CNSA.

FY-2H, the meteorological satellite located over the Indian Ocean, can fill the observation gap and provide weather monitoring service to countries along the Belt and Road, said Tang Shihao from China Meteorological Administration.

The unique strength of satellites in supporting telemedicine, epidemic prevention and control, and distance education, social security services can be improved, Wu said.

Independently constructed and operated by China, the BeiDou Navigation Satellite System has been widely used in many countries and regions. “The system started to provide RNSS (Radio Navigation Satellite System) services worldwide last December,” said Gao Weiguang from China Satellite Navigation Project Center.

Wu Yanhua said that China was developing a space economy and supporting commercial space development by pushing forward the commercialization of space technologies.

As the provider of Long March launch services, the China Great Wall Industry corporation (CGWIC) has performed 48 dedicated launch services and 17 piggyback launch services for international clients with high successful rate and competitive pricing, according to Zhou Yuanying from CGWIC.

Wu said that China would undertake monitoring and research of global climate change by taking advantage of satellites, to achieve the goals outlined in the Paris Agreement.

By pushing forward international space cooperation, China is also committed to joint efforts to tackle contemporary issues with global impact including poverty, hunger, natural disasters and environmental pollution, Wu added.

Many countries, in particular developing countries, need to make the best possible use of space assets to support the SDGs. At the same time, a lot of space agencies and companies are struggling to find partners/users to which they can offer their particular space solutions, Simonetta said.

“This Forum will build on previous UN workshops and symposiums to provide a unique platform for users and space solution providers to forge partnerships and thus contribute concretely to the achievement of the SDGs.” Simonetta said.

Also on Wednesday, the CNSA inked agreements on space cooperation separately with the UN Office for Outer Space Affairs, Turkey, Ethiopia and Pakistan.

Since 2016, China has set April 24 as the country’s Space Day. Activities on Space Day have become a window for the Chinese public and the world to gain a better understanding of China’s aerospace progress.

The theme this year is to “pursue space dreams for win-win cooperation.”

Source: Xinhua

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