Земля и климат · 3 минуты · 330 слов

Two New Satellites Set to Study One of Earth's Most Critically Changing Regions

2:32151 сл/минфраза ≈ 14 сл.редких 10 %

  1. In 2018, NASA is dispatching two new satellite missions whose observations will include Earth’s most critically changing regions – the poles.
  2. They’re NASA's first new missions in 15 years that will measure how Earth's massive ice sheets are changing.
  3. Previously thought to be slow-moving and stable, the ice sheets covering
  4. Greenland and Antarctica have rapidly lost ice over the last several decades.
  5. As a result, scientists predict global sea level could be 1 to 4 feet higher by 2100.
  6. This kind of significant change could increase the rate of warming already in progress and affect global weather patterns.
  7. But ice sheets aren’t Earth's only frozen spots experiencing critical change.
  8. Ice sheets, sea ice, glaciers, permafrost, and snow cover are all showing signs of transformation.
  9. Collectively known as the “cryosphere”, these frozen zones help sustain stable conditions for life on Earth.
  10. However, rising temperatures worldwide are resulting in ice loss, global sea level rise, thawing permafrost, and more.
  11. This spring, NASA and the German Research Centre for Geosciences (GFZ) will launch GRACE-FO, continuing the revolutionary
  12. gravity measurements of its predecessor, GRACE.
  13. Designed to observe global surface mass changes, including land ice, sea level, and water on land,
  14. GRACE was the first satellite to confirm the shrinking of the Greenland and Antarctic ice sheets.
  15. In September, ICESat-2 will launch and use its advanced laser
  16. to measure the thickness of sea ice and the changing elevation of glaciers and ice sheets.
  17. The mission will provide scientists with a view of how the height of the ice sheets are changing,
  18. to within less than an inch.
  19. GRACE-FO and ICESat-2 will be NASA’s newest “eyes in the sky"
  20. while an extensive field team of researchers collect complementary airborne and
  21. ground data about ice, snow, permafrost and the role the ocean plays in Earth’s frozen regions.
  22. Working together, these new missions and campaigns will help NASA predict how the cryosphere is changing
  23. and how those changes will impact the way we live.

Об этом ролике

Скорость речи151 слово в минуту — средний темп
Средняя фраза14.3 слова, всего фраз: 23
Редкие слова9.8 % (вне 5000 самых частых)
ИсточникNASA, Центр космических полётов имени Годдарда (GSFC)
Исходная записьimages.nasa.gov — GSFC_20180326_Cryosphere_m12906_SeaIce, 2018 год
ЛицензияОбщественное достояние (материалы NASA)
Субтитрыфайл субтитров NASA из той же записи; убраны пометки вроде [music], реплики склеены во фразы
ПодписьВидео и субтитры: NASA/GSFC (images.nasa.gov)
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Слова, которые стоит посмотреть заранее

Редкие слова этого ролика в порядке появления — без имён и названий.

  • dispatching
  • observations
  • rapidly
  • decades
  • predict
  • glaciers
  • permafrost
  • transformation
  • collectively
  • cryosphere
  • sustain
  • worldwide
  • thawing
  • revolutionary
  • measurements
  • predecessor
  • shrinking
  • laser
  • thickness
  • elevation
  • extensive
  • researchers
  • complementary
  • airborne

Описание от NASA (по-английски)

In 2018, NASA will intensify its focus on one of the most critical but remote parts of our changing planet with the launch of two new satellite missions and an array of airborne campaigns. GRACE-FO and ICESat-2 will use radically different techniques to observe how the massive ice sheets of Greenland and Antarctica are changing over time and how much they are contributing to sea level rise. The space agency is launching these missions at a time when decades of observations from the ground, air, and space have revealed signs of change in Earth's ice sheets, sea ice, glaciers, snow cover, and permafrost. Collectively, scientists call these frozen regions of our planet the "cryosphere."

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