whose objective is to map all seas and oceans in the world by 2030," says Martin Jakobsson, professor at the Stockholm University (Sweden), who led the scientific team with experts from fifteen countries, together with Larry Mayer, from the University of New Hampshire (United States)....
Through relative ease of accessibility there is a far greater body of knowledge about the terrestrial landscape than that of our undersea landscapes, and indeed, the oceans are still often referred to as the last frontier on Earth. Yet looking at any large scale map of the seafloor, our knowl...
- 《Journal of Geophysical Research Oceans》 被引量: 82发表: 2007年 The structure of NGC 7027 and a determination of its distance by measurement of proper motions Extreme limb brightening is observed and attributed to inverse-square dilution of ionizing radiation from the central star. Comparison ...
We provide such statistics using the best available resolution (1-min) global bathymetry, and open source digital maps of the world's seas and oceans and countries' Exclusive Economic Zones, using a standardized methodology. We created a terrain map and calculated sea surface and seabed area, ...
The oceans begins, of course, at the shore, the irregular boundary where the surface of a continent descends first to sea level and then beneath it. If the depth of the ocean is measured along a line drawn straight out from a continental shore, the following sequence of bottom features are...
We propose a method to extend the depth of focus in a particle field measurement using a single-shot digital hologram. A focal plane is obtained for each pixel based on an entropy method, and a depth map is subsequently extracted. A synthesized extended focused image is determined correspondingl...
This story that has captured everyone's attention has had a lot of people realizing that they had no idea how deep these adventurers were trying to go or how deep some of the oceans are at all and how dangerous it can be to try to attempt what they did. A man in scuba gear set a...
To derive a bathymetric map, the depth of the underwater vehicle must be known. The offshore survey industry has often strong requirements on both absolute and relative accuracy. Depth is usually deduced from a measurement of absolute pressure. Regardless of the quality of the pressure sensor, ...
Are coral reefs growing from the depths of the oceans? ... [The] reply is a simple negative; and a single fact establishes its truth. The reef-forming coral zoophytes, as has been shown, cannot grow at greater depths than 100 or 120 feet; and therefore in seas deeper than this, the...
In terms of water masses, the central Amundsen Sea represents an area for exchange between Pacific and Atlantic oceans (Grotov et al.1998) driven by the flow of the ACC. The lack of shelf and bottom water formation means that water temperatures are lower than in the adjacent Bellingshausen...