北极海冰规模。
They show Arctic sea ice extent for the September 2009 minimum (left) and March 2010 maximum (right).
它显示的是北极海洋结冰程度在2009年9月的最低值(左)和2010年3月的最高值(右)。
The Arctic sea ice extent averaged for July was the second lowest in the satellite record, after 2007.
根据来自国家冰雪数据中心(NSIDC)的最新数字，7月份平均北极海冰面积为2007年后卫星纪录中第2个最低点。
On July 1, 2010, NSIDC reported that Arctic sea ice extent had continued its rapid decline through the month of June.
2010年7月1日，国家冰雪数据中心报道，北极海冰面积自6月份起一直在急剧下降。
But in 2008, Arctic sea ice extent was the second-lowest on record, with losses particularly acute in the Beaufort sea.
但是2008年是北冰洋海冰面积有记录以来倒数第二小的年头，波弗特海地区海冰面积更是锐减得厉害。
"June is going to be a new record low (for sea ice extent)," said Julienne Stroeve of the National Snow and ice Data Center.
“6月将是一个历史新低(海冰范围)，”国家冰雪数据中心的胡安·娜斯特罗伊夫说。
Warm waters passing through the strait into the Arctic Ocean might have helped reduce sea ice extent since the turn of the twenty-first century.
自从新世纪开始，通过白令海峡进入北冰洋的温暖海水，已经开始限制海冰的范围。
As a result, sea ice extent for the Arctic actually peaked on March 31, 2010-the latest peak of wintertime Arctic sea ice extent in the satellite record.
结果导致2010年北极的海冰范围是在3月31日达到峰值——这是有卫星记录以来北极海冰范围最晚的冬季峰值。
In 2005, sea ice extent fell to another low, 2.15 million square miles, and then, in 2007, it underwent a massive drop, to 1.65 million square miles, the lowest yet.
到2005年，冰川面积下降到了另一个低值——215万平方英里，而到2007年，冰川面积下降到了历史最低——165万平方英里。
The years with the five lowest values of sea ice extent for a certain month are marked in red, those with the five highest values of sea-ice extent are marked in blue.
在特定月份海冰范围最小的五个年份用红色标示，最大的五个年份用蓝色标示。
Considered individually, only the Ross sea sector had a significant positive trend, while sea ice extent has actually decreased in the Bellingshausen and Amundsen seas.
个别来看，只有罗斯海区有显著的活动趋势，而在别林斯高晋海和阿蒙森海，海冰层实际上已经减少了。
The Arctic sea ice extent averaged for July was the second lowest in the satellite record, after 2007, to the latest figures from the National Snow and Ice Data Center (NSIDC).
根据来自国家冰雪数据中心（NSIDC）的最新数字，7月份平均北极海冰面积为2007年后卫星纪录中第2个最低点。
Hence, sea ice extent is primarily defined by the prevailing climate conditions; the ice-albedo feedback mechanism is, in isolation, too weak to stabilize a very low sea-ice cover.
由此可见，海冰范围首先由占主导地位的气候状况决定；单独来看，冰反射反馈机制的影响太过微弱，无法长期保持极低水平的海冰覆盖。
The results point out that the sea ice extent oscillations on the west and east sides of Greenland island show inverse variation with distinct interannual and interdecadal circles.
结果表明，格陵兰岛东西两侧海冰面积呈显著反相变化，并且具有明显的年际和年代际周期性振荡。
The yellow outline shows the median sea ice extent observed by satellite sensors in September and March from 1979-2000. "extent" is the total area with an ice concentration of at least 15 percent.
黄色勾勒出由卫星传感器自1979——2000年所观测到得海冰面积的在九月和三月中间范围。
The IPCC's computer models had simulated an average loss of 2.5% in sea ice extent per decade from 1953 to 2006. But in reality the Arctic sea ice had declined at a rate of about 7.8% per decade.
IPCC的电脑模拟显示:从1953年到2006年期间北极海冰的平均熔化速度为每十年2.5%.但实际上却是7.8%.
'Geo-engineering plans to inject stratospheric aerosols or to seed clouds would act to cool the planet, and act to increase the extent of sea ice,' says Rasch.
拉施说：“地球工程计划将平流层的气溶胶注入到云层中，这将起到冷却地球的作用，并增加海冰的范围。”
Images showing the extent of sea ice have been available for decades.
显示海冰范围的地图已经出现了几十年。
The blue curve shows the evolution of the unperturbed sea-ice extent for the A1B scenario, with the gray shading showing the ensemble spread of three model runs.
蓝色曲线表示A 1 B方案中未受干扰的海冰范围，灰色阴影表示三个模型紧张的整体差幅。
Satellites have continually monitored polar sea ice since 1979, and since the turn of the twenty-first century, Arctic sea ice has declined relative to its 1979–2000 mean extent.
自1979年以来，卫星一直在监测极地周围的海冰情况，而到21世纪以来，北极的海洋结冰范围已降至1979-2000年的平均水平。
A 15 to 25 percent decrease in the extent of Arctic Ocean sea ice.
北冰洋的海冰范围会缩水百分之十五到二十五。
The Anchorage meeting next month will be a step in that direction; but meanwhile, Arctic summer sea ice continues to diminish in thickness and extent.
下个月的安克雷奇会议将会成为分析海洋生态系统的一个重要环节。但是，北极夏季的海洋冰层消失的速度和数量都在增加。
Their main result is shown in Fig. 3: it took only about two years after each complete sea-ice removal until the ice had recovered to roughly the extent it had before the removal.
他们的主要成果见于图表3：在每次彻底的海冰移除后，大约只要两年时间，冰层就可以大致恢复到移除前的水平。
The figure shows in red the years with the five lowest values of sea-ice extent for a certain month and in blue the years with the five highest values.
在图中，红色表示在该月份时海冰范围最小的五个年份，蓝色表示在该月份时海冰范围最大的五个年份。
In other words, Holland's research suggests that summertime sea ice - which is predicted to disappear by mid-century - could possibly recover to its previous extent and thickness.
换句话说，霍兰德的研究表明，原本预计本世纪中期完全消失的夏季海冰有可能恢复原来的覆盖面和厚度。
That this is not the case becomes obvious from the graphical distribution of extreme sea-ice extent for each individual month that is shown in Figure 2.
从图表2中展示的各月海冰范围极值的图像分布来看，情况显然不是这样。
That this is not the case becomes obvious from the graphical distribution of extreme sea-ice extent for each individual month that is shown in Figure 2.
从图表2中展示的各月海冰范围极值的图像分布来看，情况显然不是这样。
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