您现在的位置:英语中国网/Understanding Our Planet in 21st Century
| 美国在线收购了时代华纳!网络巨人一举和传统媒体业的老大合并, 让世人再一次感受到电脑和互联网普及带来的全球冲击力!这个世界到底 怎么了?网络,当不少人觉得还很遥远时,它实际已经成为我们生活的一 部分。21世纪在我们昂首盼了多年后,波澜不惊地一天一天过着,但可以 坚信,又将有多少惊心动魄的事会在这百年内发生。 |
Understanding Our Planet In The 21st Century
--by Vice President Al Gore(美国副总统艾尔·戈尔)
Given at the California Science Center, Los Angeles,
California, on January 31, 1998.
A new wave of technological innovation is allowing us to
capture, store, process and display an unprecedented amount of
information about our planet and a wide variety of environmental
and cultural phenomena.
新一轮的科技浪潮允许我们获取、保存、处理、展示前所未有的广泛
信息和种种现象。
The tools we have most commonly used to interact with data,
such as the "desktop metaphor" employed by the Macintosh and
Windows operating systems, are not really suited to this new
challenge. I believe we need a "Digital Earth". A multi-
resolution, three-dimensional representation of the planet, into
which we can embed vast quantities of geo-referenced data.
我们通常用Macintosh和微软系统来交互数据,但这不足以适应这个新
挑战。我们需要一个“数字地球”——一种多方位的、三维地展示这个星
球,从中含有大量的以地球为参数所得的数据。
Imagine, for example, a young child going to a Digital Earth
exhibit at a local museum. After donning a head-mounted display,
she sees Earth as it appears from space. Using a data glove, she
zooms in, using higher and higher levels of resolution, to see
continents, then regions, countries, cities, and finally
individual houses, trees, and other natural and man-made objects.
设想一个孩子在参观数字地球展时,头上戴上一个显示器,可以看到
太空中看到的地球模样。用数据手套能够以越来越高的清晰度看到大洲、
国家、城市、房屋树、自然和人造的其它东西。
Having found an area of the planet she is interested in
exploring, she takes the equivalent of a "magic carpet ride"
through a 3-D visualization of the terrain. Of course, terrain
is only one of the many kinds of data with which she can interact.
她可以在3D模拟的世界中展开“魔毯之行”。
Using the systems’ voice recognition capabilities, she is
able to request information on land cover, distribution of plant
and animal species, real-time weather, roads, political
boundaries, and population. She can also visualize the
environmental information that she and other students all over
the world have collected as part of the GLOBE project. This
information can be seamlessly fused with the digital map or
terrain data. She can get more information on many of the objects
she sees by using her data glove to click on a hyperlink.
运用语音识别系统,她可以获取有关天气、动植物分布、人口等信息。
To prepare for her family’s vacation to Yellowstone National
Park, for example, she plans the perfect hike to the geysers(间
歇泉), bison(野牛), and bighorn sheep(大角羊) that she has
just read about. In fact, she can follow the trail visually from
start to finish before she ever leaves the museum in her hometown.
Technologies needed for a Digital Earth
Computational Science
Mass Storage
Satellite Imagery
Broadband networks 宽带网
Interoperability 协同工作的能力
Metadata 元数据
Of course, further technological progress is needed to realize
the full potential of the Digital Earth, especially in areas such
as automatic interpretation of imagery, the fusion(融合) of
data from multiple sources, and intelligent agents that could
find and link information on the Web about a particular spot on
the planet. But enough of the pieces are in place right now to
warrant proceeding with this exciting initiative.
Potential Applications 潜在应用
Conducting virtual diplomacy 虚拟外交
Fighting crime 打击犯罪
Preserving biodiversity 保护生物的多样性
Predicting climate change 预测天气变化
Increasing agricultural productivity 提高农产量
Clearly, the Digital Earth will not happen overnight.
In the first stage, we should focus on integrating the data
from multiple sources that we already have. We should also connect
our leading children’s museums and science museums to high-speed
networks such as the Next Generation Internet so that children
can explore our planet. University researchers would be encouraged
to partner with local schools and museums to enrich the Digital
Earth project — possibly by concentrating on local geospatial
information.
In the long run, we should seek to put the full range of data
about our planet and our history at our fingertips.
英语中国网 版权所有
服务电话:010-82634448
Webmaster@EnglishChina.com