Yet, satellite instruments have generally struggled to achieve accurate measurements of the particles in near-surface air.

然而，卫星仪器通常很难实现近地面空气中细颗粒物的精确测量。

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Most of the carbon is returned to near-surface waters when phytoplankton are eaten or decompose, but some falls into the ocean depths.

大部分的碳会在浮游植物被食用或者分解的时候返回到近地表水域，但仍有一部分被带进了大洋深处。

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This is because the winds normally vary widely between the near-surface and the upper atmosphere, home to the eastward-flowing jet stream.

这是因为风通常从近地高度和高空大气层之间变化很大，进入高层后会并入向东流动的气流中。

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Some recent studies have revealed a significant concentration of particles in near-surface waters in areas of mid-ocean accumulation (N Pacific and NW Atlantic gyres).

UNESCO: All Events | United Nations Educational, Scientific and Cultural Organization

Australia has some of the highest temperatures in its known near-surface rocks anywhere in the world and its geothermal potential is distributed over the entire country.

FORBES: Australia Could Be A Geothermal Powerhouse

"There is some near-surface gas hydrate, " she said Wednesday.

CNN: Study: Tap natural gas from Alaska's frozen areas