Земля и климат · 2 минуты · 260 слов

OIB: Across the Ross

2:06154 сл/минфраза ≈ 14 сл.редких 9 %

  1. At 5am the Operation IceBridge team got the weather briefing they were hoping to hear: The Ross Sea
  2. had unusually clear skies, and so the first ever basin-wide
  3. laser and radar survey of this critical area was officially a go.
  4. "It should be good all day. Yeah, but like you said, this
  5. has been pretty ugly for quite a while so." "Yeah, it has. And that's a baseline mission."
  6. Three hours later, the NASA P-3 aircraft was on the move, taking off from the sea ice runway at
  7. McMurdo Station, and heading to its science target.
  8. The particular flight paths for the Ross Sea Fluxgate mission were chosen to sample the movement, or flux,
  9. of flows of sea ice moving northward from the coast.
  10. A few hours into the mission, the team encountered
  11. large icebergs that had broken off of nearby ice sheets, as well as many
  12. cracks of open ocean water, or leads, in the sea ice.
  13. These leads generated moisture in the air, causing localized fog and low cloud cover, but nothing the team’s instruments couldn’t handle.
  14. The leads also make a good science target because measuring the local sea surface height enables researchers to estimate the thickness
  15. of the sea ice above and below the water.
  16. The Ross Sea is particularly important to study since it’s one of the few places
  17. where sea ice coverage has been, on average, increasing over the last few decades. IceBridge thickness
  18. data should help illuminate whether that increased area actually represents a greater total volume of ice as well.

Об этом ролике

Скорость речи154 слова в минуту — средний темп
Средняя фраза14.4 слова, всего фраз: 18
Редкие слова9.3 % (вне 5000 самых частых)
ИсточникNASA, Центр космических полётов имени Годдарда (GSFC)
Исходная записьimages.nasa.gov — GSFC_20140731_OIB_m11621_Across_the_Ross, 2014 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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Скачать: MP4 720p · MP4 360p · субтитры .vtt

Слова, которые стоит посмотреть заранее

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

  • basin
  • laser
  • survey
  • baseline
  • runway
  • flux
  • northward
  • encountered
  • icebergs
  • generated
  • moisture
  • localized
  • instruments
  • enables
  • researchers
  • estimate
  • thickness
  • coverage
  • decades
  • illuminate
  • volume

Описание от NASA (по-английски)

As summer temperatures heat up in the Northern Hemisphere, we look back at Operation IceBridge’s most recent Antarctic campaign. In November of last year, IceBridge researchers completed the first-ever basin-wide airborne survey of ice in the Ross Sea. This survey, known as the Ross Sea Fluxgate mission, aimed to help researchers track the movement of sea ice in the Ross Sea. After an early morning weather briefing and takeoff from the sea ice runway at the National Science Foundation's McMurdo Station in Antarctica, the NASA P-3 flew a survey that took researchers across the Ross Sea basin and back.

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