资讯

NASA14 年
What are Phytoplankton? - NASA Earth Observatory
Importance of phytoplankton The food web. Phytoplankton are the foundation of the aquatic food web, the primary producers, feeding everything from microscopic, animal-like zooplankton to multi-ton ...
NASA11月
Paleoclimatology: A Record from the Deep - NASA Earth Observatory
The most valuable fossils found in sediment cores are from tiny animals with a calcium carbonate shell, called foraminifera. One species of foraminifera lives in the icy waters of the Arctic above ...
NASA1 年
About - Kathryn Hansen - NASA Earth Observatory
Kathryn Hansen is the managing editor for NASA Earth Observatory. She has been writing stories, producing videos, and editing content for the group since 2014. Prior to joining Earth Observatory, ...
NASA16 年
The World We Avoided by Protecting the Ozone Layer - NASA Earth Observatory
The year is 2065. Nearly two-thirds of Earth’s ozone is gone—not just over the poles, but everywhere. The infamous ozone hole over Antarctica, first discovered in the 1980s, is a year-round fixture, ...
NASA6 年
About - Michael Carlowicz - NASA Earth Observatory
Michael Carlowicz. Michael Carlowicz was managing editor of NASA’s Earth Observatory from 2010 to 2022. He has written about Earth science and geophysics since 1991 for several NASA divisions, the ...
NASA4 年
Mission: Biomes - NASA Earth Observatory
The Earth Observatory shares images and stories about the environment, Earth systems, and climate that emerge from NASA research, satellite missions, and models.
NASA1 年
Temperature Extremes - NASA Earth Observatory
The Earth Observatory shares images and stories about the environment, Earth systems, and climate that emerge from NASA research, satellite missions, and models.
NASA11 年
Dusting the Virtues of Snow - NASA Earth Observatory
At least as far back as King David’s psalms and Isaiah’s prophecies, snow has been characterized as a symbol of purity. “Lawn [linen] as white as driven snow” was how Shakespeare once described it.
NASA2月
The Great Graph Match (basic version) - NASA Earth Observatory
Examine the set of graphs below for a given city. Read carefully the temperature and precipitation scales on the graphs. Review the biome information. Two biome choices are given for each set of ...
NASA11 年
The Eight-Thousanders - NASA Earth Observatory
Located on the border of Pakistan and China, just a few kilometers southeast of K2, Broad Peak is the twelfth tallest mountain on Earth and the third tallest in the Karakoram Range. Its name comes ...
NASA1 年
Remote Sensing - NASA Earth Observatory
The Earth Observatory shares images and stories about the environment, Earth systems, and climate that emerge from NASA research, satellite missions, and models.
NASA4 年
From Forest to Field: How Fire is Transforming the Amazon - NASA Earth Observatory
× This page contains archived content and is no longer being updated. At the time of publication, it represented the best available science. Before widespread human settlement began to encroach on the ...