Altitude | NASA Earthdata
Altitude. A measure of height, especially of great height, as a mountain top or aircraft flight level. In meteorology, altitude is used almost exclusively with respect to the height of an airborne object above the earth's surface, above a constant pressure surface, or above mean sea level. Definition source: American Meteorological Society.
Air Mass/Density | NASA Earthdata
Air mass/density is a fundamental property of atmosphere. Mixture of gases forming Earth's atmosphere, consisting of nitrogen (∼78%), oxygen (∼21%), water vapor, and other trace gases such as carbon dioxide, helium, argon, ozone, or various pollutants. The concentration of water vapor is very variable, being a strong function of temperature ...
Terrain Elevation | NASA Earthdata
NASA's terrain elevation data measure current height and changes in land altitude and are useful for creating Digital Elevation Models. The elevation of Earth’s terrain is constantly changing through volcanoes, geohazards, mining, subsidence, urban growth, and other events and processes. Tracking terrain elevation is essential for ...
Planetary Boundary Layer Height | NASA Earthdata
Planetary Boundary Layer Height. The height of the atmospheric layer from the Earth's surface up to an. altitude of about 1 kilometer in which wind speed and direction are. affected by frictional interaction with objects on the Earth's. surface.
Does humidity change with altitude - Answers
2023年8月11日 · Best Answer. Humidity is not directly affected by altitude. However, humidity is affected by air density and temperature. At high altitudes, the air is usually much thinner (lower pressure) and ...
Can the value of altitude be negative? - Answers
2022年11月5日 · Altitude is the distance above ground-level that an object is, in a vertical direction (that is, directly away from the centre of the Earth). If this is negative then the object is below ground ...
The Precision Behind Sea Level Rise | NASA Earthdata
2021年4月19日 · The satellite altitude over the ocean is the distance from the satellite to the ellipsoid. If you want to deduce the shape of ocean currents and how these change with time (the dynamic ocean surface topography), simply eliminate the …
On the Trail of Contrails | NASA Earthdata
2020年12月28日 · The researchers found that contrails have an overall warming effect, acting like a light blanket. “The contrails are trapping more heat in the atmosphere compared to cooling from reflected sunlight,” Spangenberg said. However, Bedka and Spangenberg said that the effect is still quite small. “When you consider all of the man-made radiative ...
Remote Sensing | NASA Earthdata
2024年10月21日 · Remote sensing is the acquiring of information from a distance. NASA observes Earth and other planetary bodies via remote instruments on space-based platforms (e.g., satellites or spacecraft) and on aircraft that detect and record reflected or emitted energy. Remote instruments, which provide a global perspective and a wealth of data about ...
What is the melting point of water at 5000 of altitude? - Answers
2024年1月4日 · In degrees C the boiling point of water drops .53 degrees per 500 feet. So at 500 feet the boiling point of water is ~ 99.5 degrees. Please note: A factor that elevates water boiling point is the ...