近几十年全球海洋热含量加倍

Lawrence Livermore scientists, working with National Oceanic and Atmospheric Administration and university colleagues, have found that half of the global ocean heat content increase since 1865 has occurred over the past two decades."In recent decades the ocean has continued to warm substantially, and withtime the warming signal is reaching deeper into the ocean," said LLNL scientist Peter Gleckler, lead author of a paper published in the journal Nature Climate Change.

Changes in ocean heat storage are important because the ocean absorbs more than 90 percent of the Earth's excess heat increase that is associated with globalwarming. The observed ocean and atmosphere warming is a result of continuing greenhouse gas emissions. Quantifying how much heat is accumulating in the Earth system is critical to improving the understanding of climate change already under way and to better assess how much more to expect in decades and centuries to come. It is vital to improving projections of how much and howfast the Earth will warm and seas rise in the future.

Increases in upper ocean temperatures since the 1970s are well documented and associated with greenhouse gas emissions. By including measurements from a 19th century oceanographic expedition and recent changes in the deeper ocean, the study indicates that half of the accumulated heat during the industrial era has occurred in recent decades, with about a third residing in the deeper oceans.

The team analyzed a diverse set of ocean temperature observations and a large suite of climate models. Scientists have measured ocean temperatures in a variety of ways over time, from lowering pairs of minimum-maximum thermometers to different depths on lines dangled overboard during the H.M.S. Challenger 1872-1876 expedition, to highly accurate modern instruments used on a global array of robotic profiling floats(called Argo) that "phone home" the data using satellites, starting around 1999.

This study found that estimates of ocean warming over a range of times and depths agree well with results from the latest generation of climate models, building confidence that the climate models are providing useful information. "The year-round, global distribution of ocean temperature data collected by Argo hasbeen key in improving our estimates of ocean warming and assessing climate models," notes LLNL oceanographer Paul Durack.

1 atmospheric

adj.大气的，空气的；大气层的；大气所引起的

参考例句：

• Sea surface temperatures and atmosphericcirculation are strongly coupled.海洋表面温度与大气环流是密切相关的。

• Clouds return radiant energy to thesurface primarily via the atmospheric window.云主要通过大气窗区向地表辐射能量。

2 emissions

排放物( emission的名词复数 )； 散发物（尤指气体）

参考例句：

• Most scientists accept that climatechange is linked to carbon emissions. 大多数科学家都相信气候变化与排放的含碳气体有关。

• Dangerous emissions radiate fromplutonium. 危险的辐射物从钚放散出来。

3 projections

预测( projection的名词复数 )； 投影； 投掷； 突起物

参考例句：

• Their sales projections are a totalthumbsuck. 他们的销售量预测纯属估计。

• The council has revised its projectionsof funding requirements upwards. 地方议会调高了对资金需求的预测。

4 analyzed

v.分析( analyze的过去式和过去分词 )；分解；解释；对…进行心理分析

参考例句：

• The doctors analyzed the blood sample foranemia. 医生们分析了贫血的血样。来自《简明英汉词典》

•  The young man did not analyze the processof his captivation and enrapturement, for love to him was a mystery and couldnot be analyzed. 这年轻人没有分析自己蛊惑著迷的过程，因为对他来说，爱是个不可分析的迷。来自《简明英汉词典》

5 suite

n.一套(家具)；套房；随从人员

参考例句：

• She has a suite of rooms in the hotel.她在那家旅馆有一套房间。

• That is a nice suite of furniture.那套家具很不错。

6 dangled

悬吊着( dangle的过去式和过去分词 )； 摆动不定； 用某事物诱惑…； 吊胃口

参考例句：

• Gold charms dangled from her bracelet. 她的手镯上挂着许多金饰物。

• It's the biggest financial incentive everdangled before British footballers. 这是历来对英国足球运动员的最大经济诱惑。