首页
登录
职称英语
On the heels of E1 , its opposite, La may soon arrive. In a Weekly Update, scie
On the heels of E1 , its opposite, La may soon arrive. In a Weekly Update, scie
游客
2023-09-07
39
管理
问题
On the heels of E1 , its opposite, La may soon arrive. In a Weekly Update, scientists at the NOAA Climate Prediction Center reported that as the 2006-2007 E1 faded, surface and subsurface ocean temperatures have rapidly decreased. Recently, cooler-than-normal water temperatures have developed at the surface in the east-central equatorial Pacific, indicating a possible transition to La conditions.
Typically, during the U.S. spring and summer months, La conditions do not significantly impact overall inland temperature and precipitation (雨水的降落) patterns, however, La episodes often do have an effect on Atlantic and Pacific hurricane activity.
"Although other scientific factors affect the hurricanes, there tends to be a greater-than-nor-mal number of Atlantic hurricanes and fewer-than-normal number of eastern Pacific hurricanes during La events," said retired Navy Vice Adm. Conrad C. Lautenbacher, Ph.D., under secretary of commerce for oceans and atmosphere and NOAA administrator. "During the winter, usual La impacts include drier and warmer-than-average conditions over the southern United States."
"NOAA’s ability to detect and monitor the formation, duration and strength of E1 and La events is enhanced by continuous improvements in satellite and buoy observations in the equatorial Pacific," Lautenbacher added. "These observing systems include the TAO/TRITON moored and Argo drift buoys, as well as NOAA’s polar orbiting satellites."
La conditions occur when ocean surface temperatures in the central and east-central equatorial Pacific become cooler than normal. These changes affect tropical rainfall patterns and atmospheric winds over the Pacific Ocean, which influence the patterns of rainfall and temperatures in many areas worldwide.
"La events sometimes follow on the heels of E1 conditions," said Vernon Kousky, research meteorologist at the NOAA Climate Prediction Center. "It is a naturally occurring phenomenon that can last up to three years. La episodes tend to develop during March-June, reach peak intensity during December-February, and then weaken during the following March-May."
"The last lengthy La event was 1998-2001, which contributed to serious drought conditions in many sections of the western United States," said Douglas Lecomte, drought specialist at the NOAA Climate Prediction Center.
NOAA will issue the U.S. Spring Outlook on March 15, and its Atlantic Hurricane Season Outlook in May. Both outlooks will reflect the most current La forecast.
"While the status of E1 /La is of vital importance to our seasonal forecasts, it is but one measure we use when making actual temperature and precipitation forecasts," said Kousky. [br] According to Conrad C. Lautenbacher, La has the greatest influence on the ______ of the hurricanes.
选项
A、frequency
B、intensity
C、duration
D、route
答案
A
解析
第3段首句反复提到了number一词,表明拉尼娜现象对飓风发生的频率影响最大,因此选A。
转载请注明原文地址:https://tihaiku.com/zcyy/2993217.html
相关试题推荐
[originaltext]W:Today’sgueston"ScienceUpdate"isDavidBrown.Dr.Brown,y
[originaltext]W:Today’sgueston"ScienceUpdate"isDavidBrown.Dr.Brown,y
[originaltext]W:Today’sgueston"ScienceUpdate"isDavidBrown.Dr.Brown,y
OntheheelsofE1,itsopposite,Lamaysoonarrive.InaWeeklyUpdate,scie
OntheheelsofE1,itsopposite,Lamaysoonarrive.InaWeeklyUpdate,scie
OntheheelsofE1,itsopposite,Lamaysoonarrive.InaWeeklyUpdate,scie
OntheheelsofE1,itsopposite,Lamaysoonarrive.InaWeeklyUpdate,scie
Everybodyshould__________toupdatehimselfinordertomeettherequirements
Youshould_______tooneormoreweeklymagazinessuchasTime,orNewsweek.A、r
AfterlunchIfelt______enoughtoaskmybossforariseinmyweeklywages.A、
随机试题
公路路基施工完成后进行压实度检测工作,现场采用挖坑罐砂方法侧定路基压度,请结合相
世界遗产的基本特征包括()。A.真实性 B.稀缺性 C.不可替代性 D.杰
某市某小学,学生午餐进食一种色泽鲜艳的熟肉后,部分学生感觉头晕、无力,口唇和指甲
泛制法的制备工艺流程是A:起模→加大成型→盖面→干燥→选丸→质检→包装B:起模
影响房地产经纪机构经营模式选择的因素包括()。(2012年真题)A.组织结构
某感染中毒性休克患者,伴尿少,宜选用的措施是A.地塞米松+多巴胺+头孢他啶B.地
在工作地点或检修设备上应悬挂()的标示牌。(A)“止步,高压危险!”(B
中性粒细胞碱性磷酸酶降低见于( )。A.再生障碍性贫血 B.急性淋巴细胞白血
根据民事法律制度的规定,下列关于代理制度的表述中,正确的是()。A.代理人和第三
建设工程项目结构图描述的是()。A.组织系统中各部门的职责分工 B.工作
最新回复
(
0
)