In the second phase, the students exhibited difficulties in relating the cycles to the four subsystems and the remaining cycles, drawing many arrows without any kind of connecting words. Nevertheless, in general, students have realized how to build an improved concept map ...
We demonstrate the efficiency and effectiveness of using a satellite-based sensor with visual and infrared focal plane arrays to search for that subclass of Near-Earth Objects (NEOs) with orbits largely interior to the Earth's orbit. A space-based visual-infrared system could detect approximately ...
Progress in the geosciences has often followed the same fundamental paradigm for about two centuries: Earth’s present is the key to understanding its past and its future. This concept is at the root of most of what is known about the Earth. Similarly, k
The concept of irrecoverable carbon in ecosystems was introduced in a 2020 study2 which synthesized ecosystem-level data to estimate the magnitude of irrecoverable carbon across major ecosystems. Here, we map irrecoverable carbon globally and at high resolution (300 m), using remotely sensed or mo...
GRACE: A New Mission Concept for High Resolution Gravity Field Mapping The Jet Propulsion Laboratory is the lead U.S. center for robotic exploration of the solar system, and conducts major programs in space-basedEarth sciences and astronomy. JPL spacecraft have visited all of the planets from ...
The two most commoncomputer graphicformats are vector and raster, both of which are used to store graphic map elements. Vector-based GIS represents the locations of point entities as coordinate pairs in geographic space, lines as multiple points, and areas as multiple lines. Topographic surfaces ...
Urban impervious surfaces area (ISA) and green space (GS), two primary components of urban environment, are pivotal in detecting urban environmental quality and addressing global environmental change issues. However, the current global mapping of ISA and GS is not effective enough to accurately delin...
For example, regional studies were strongly related to cooperation between neighboring countries through associations and organizations such as the EU, Mekong Institute, Alpine Space Program cooperation area (ASPCA), and so on. Moreover, conflicts related to specific continents and ocean boundaries are...
At half a mile tall and 2 miles long altogether, the letters HAMAD may be the world's largest; regardless, they're visible from space. Normally, words written in sand wash away, but these letters are large enough to form waterways that absorb the encroaching tide. Indeed, at the time ...
Earth, Planets and Space volume 72, Article number: 140 (2020) Cite this article 2557 Accesses 3 Altmetric Metrics details Abstract This paper used the similarities between the ionospheres on Mars and Earth, the most similar of the terrestrial planets, to examine the relative importance of ...