Sea Surface Microlayer (SML)

The Sea Surface Microlayer (SML) is a layer between 1 and 1000 μm, a unique environment. Due to the difficulty in sampling the area, little is known about the composition of the SML environment. In this study, an innovative way to sample the region was demonstrated and compared with existing SML sampling methods. The sampling technique we use is called the "modified membrane method" and proved to be an effective sampling method by reducing the possibility of contaminating the microbes of the adjacent layer.

Global sea level trends and relative sea level trends are different metrics. Like the earth's undulating surface, the sea level is not flat. In other words, the sea level does not change at the same speed on a global scale. Due to a number of regional factors, sea level rise in certain places more or less than the world average, subduction, upstream flood control, erosion, local ocean current, change in ground height, and compressed weight of glacial glacier Does the land still bounce back from

The image of the earth is the earth called the geoid, the average sea level in each place on the earth; under the continent, the geoid is an imaginary continuation of the sea level. However, the geoid is not a uniform ellipsoid due to the irregularities of the gravitational attraction of the Earth's surface. If astronomical approaches, including the use of local horizon, are used only for location identification, these irregularities of geoid cause severe errors in the location of the control points of the survey. Because of these irregularities, the reference plane used in the geodetic survey is a regular elliptical shape as close as possible to a regular mathematical plane, ie a geoid. The reference ellipsoid is under the geoid in one place and above the geoid in other places. In the sea, the average sea level defines the geoid, but in the land area, the geoid is a fictitious sea level.