Web Search Results for "air pressure"

Air Mass/Density - NASA Earthdata
23 Mar 2026 at 12:35am
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 2022 Hunga-Tonga Hunga-Ha?apai Eruption - NASA Earthdata
24 Mar 2026 at 5:06am
Figure d shows the amount of time that passed between the air-pressure waves formation and the arrival of the tsunami in surrounding islands (10 minutes for the Tonga island and 50 min for the Fiji island). This research significantly improves our understanding of the physics of tsunami generation and can help improve early warning systems.

Air Quality Near Real-Time Data - NASA Earthdata
23 Mar 2026 at 2:23am
Near real-time data provided by NASA's Land, Atmosphere Near real-time Capability for Earth observation (LANCE) can be used by air quality forecasters to improve some local and national air quality forecasts.

Convert Water Vapor Mixing Ratio to Precipitable Water Vapor
8 Mar 2026 at 1:36am
It represents the ratio of the mass of water vapor to dry air, typically expressed in units of grams per kilogram (g/kg). In meteorology, vertical soundings record variables such as dewpoint temperature and pressure.

Atmosphere - NASA Earthdata
23 Mar 2026 at 12:28am
Earth's atmosphere is a layer of mixed gases approximately 60 miles high that provides the air we breathe, shields us from dangerous levels of ultraviolet light from the sun, and traps enough heat to maintain a livable environment. NASA's satellites make atmospheric measurements that scientists use to study its chemistry and air quality, weather, and climate change. We have thousands of data ...

On the Trail of Contrails - NASA Earthdata
17 Mar 2026 at 6:22pm
Contrails likely have a small effect now, but increasing air traffic may change that. A trail of cloud While it is easy to imagine that contrails are just dirty streams of pollutants billowing out of airplanes as they cross the sky, in reality they are mostly ice crystals.

Tropical Cyclones | NASA Earthdata
22 Mar 2026 at 8:10pm
Tropical cyclones are one of the biggest threats to life and property. As defined by the World Meteorological Organization (WMO), a tropical cyclone is a rotating storm originating over a tropical ocean basin that has a low pressure center (the eye). The diameter of a tropical cyclone is typically 124 to 311 miles (200 to 500 km), but can be as large as 621 miles (1,000 km). These massive ...

Glacier Power: What is a Glacier? - NASA Earthdata
24 Mar 2026 at 4:38am
That means there are fewer air bubbles in the ice because of the pressure applied by your hands. This is similar to how a glacier is made. The weight of snow and ice on a glacier presses the snow tight over time, removing many air bubbles. (Courtesy of Glaciers of North America by S. Ferguson)

Operation IceBridge - NASA Earthdata
19 Mar 2026 at 9:54pm
Operation IceBridge was an airborne campaign that surveyed the Arctic, Antarctica, and Alaska over a period of 10 years. IceBridge provided essential data on the height, depth, thickness, and flow of sea ice, glaciers, and ice sheets. Learn More About Operation IceBridge

SWOT Postlaunch Oceanography Field Campaign L2 Moorings
21 Mar 2026 at 8:55pm
The SWOT Postlaunch Oceanography Field Campaign L2 Moorings collection provides the surface air pressure, GPS, current velocity, and conductivity, temperature and depth (CTD) measurements from moorings at the L2 processing level. The SWOT satellite mission launched in late 2022 and underwent a calibration and validation (cal/val) phase in 2023.



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