Showing posts with label AIRS. Show all posts
Showing posts with label AIRS. Show all posts

Monday, April 28, 2014

NOAA GOES-East Image: Captures weather system that spawned tornadoes

This NOAA GOES-East satellite image from Monday, Apr. 28, 2014 at 13:01 UTC/9:01 a.m. EDT shows the same storm system that generated the severe weather outbreak yesterday, has moved to the east. 

Credit: NASA /NOAA GOES Project

NASA has just released an animation of visible and infrared satellite data from NOAA's GOES-East satellite that shows the development and movement of the weather system that spawned tornadoes affecting seven central and southern U.S. states on April 27-28, 2014.

NASA's Aqua satellite captured infrared data on the system that revealed powerful storms, high into the troposphere.

This storm system generated reports of tornadoes from Nebraska, Kansas, Iowa, Oklahoma, Arkansas, Louisiana, and Mississippi.

Coupled with local weather observations, soundings, and computer models, data from satellites like NOAA's Geostationary Operational Environmental Satellite (GOES-East or GOES-13) gives forecasters information about developing weather situations.

In real-time, the NOAA's GOES-East satellite data in animated form showed forecasters how the area of severe weather was developing and moving.

NOAA's GOES-East satellite sits in a fixed orbit in space capturing visible and infrared imagery of weather over the eastern U.S. and Atlantic Ocean.

The GOES-East satellite is operated by the National Oceanic and Atmospheric Administration.

NASA/NOAA's GOES Project at the NASA Goddard Space Flight Center in Greenbelt, Md. created the animation of GOES-East satellite data that covered the period during the tornado outbreak.

The GOES-East animation of visible and infrared imagery runs 31 seconds. The animation begins on April 27 at 00:15 UTC (April 26 at 8:15 p.m. EDT) and runs through April 28 at 14:15 UTC/10:15 a.m. EDT.

By 14:45 UTC/10:45 a.m. EDT on April 27 the animation shows the squall line of thunderstorms developing.


This animation of NOAA's GOES-East satellite data shows the development and movement of the weather system that spawned tornadoes affecting seven central and southern U.S. states on April 27-28, 2014. 

Credit: NASA/NOAA GOES Project

To create the video and imagery, NASA/NOAA's GOES Project takes the cloud data from NOAA's GOES-East satellite and overlays it on a true-color image of land and ocean created by data from the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument that flies aboard NASA's Aqua and Terra satellites.

Together, those data created the entire picture of the storm system and show its movement.

A NASA satellite also captured an image of the storm, collecting infrared data on it as it passed overhead on April 27.

At NASA's Jet Propulsion Laboratory (JPL) in Pasadena, Calif. a false-colored image was created of the storm system using data gathered by the Atmospheric Infrared Sounder (AIRS) instrument that flies aboard NASA's Aqua satellite on April 27 at 18:59 UTC (1:59 p.m. CDT).

The AIRS image showed very cold cloud top temperatures indicating that the thunderstorms had strong uplift that pushed cloud tops to the top of the troposphere.

Some of those thunderstorms had cloud tops as cold as 200 kelvin (-99.6 F/-73.1C). Temperatures drop to just under 220 degrees kelvin at the top of the troposphere (and where the tropopause begins).

This false-colored infrared image from the AIRS instrument aboard NASA's Aqua satellite shows the cold cloud top temperatures associated with the severe thunderstorms that brought severe weather to seven states on Apr. 27. 

Credit: NASA/JPL, Ed Olsen

Tuesday, January 28, 2014

NASA AQUA Satellite: Tropical system affecting Mozambique's Nampula Province

NASA's Aqua satellite passed over the Mozambique Channel on January 28 at 10:35 UTC/5:35 a.m. EST and saw some of the thunderstorms had high cloud tops, where temperatures exceeded -63F/-52C (purple). 

Credit: NASA JPL, Ed Olsen

NASA's Aqua satellite captured infrared data on a developing area of tropical low pressure known as System 91S that was brushing the Nampula Province of Mozambique on January 28.

Nampula is a province in northern Mozambique and its eastern coast runs along the Mozambique Channel of the Southern Indian Ocean.

When NASA's Aqua satellite passed over the Mozambique Channel on January 28 at 10:35 UTC/5:35 a.m. EST the Atmospheric Infrared Sounder instrument (AIRS) captured infrared data on the clouds associated with System 91S.

AIRS showed some of the thunderstorms surrounding the low-level center of circulation had high cloud tops, where temperatures exceeded -63F/-52C, a threshold that indicates strong storms and potentially heavy rainmakers.

The Joint Typhoon Warning Center noted that animated multi-spectral satellite imagery showed that the low-level center was consolidating and that there were bands of thunderstorms wrapping into the center - a sign of strengthening.

System 91S was centered near 15.4 south and 41.6 east, about 810 nautical miles northeast of Maputo, Mozambique.

Maximum sustained winds are near the threshold for depression status, currently as high as 30 knots. The low is over warm enough waters to support further development.

Tuesday, November 24, 2009

AIRS image of global carbon dioxide transport

This image was created with data acquired by the Atmospheric Infrared Sounder instrument (AIRS) on NASA's Aqua satellite during July 2009.
The image shows large-scale patterns of carbon dioxide concentrations that are transported around Earth by the general circulation of the atmosphere.
Dark blue corresponds to a concentration of 382 parts per million and dark red corresponds to a concentration of almost 390 parts per million.

The northern hemisphere mid-latitude jet stream effectively sets the northern limit of enhanced carbon dioxide. A belt of enhanced carbon dioxide girdles the globe in the southern hemisphere, following the zonal flow of the southern hemisphere mid-latitude jet stream.
This belt of carbon dioxide is fed by biogenesis activity in South America (carbon dioxide is released into the atmosphere through the respiration and decomposition of vegetation), forest fires in both South America and Central Africa, and clusters of gasification plants in South Africa and power generation plants in south eastern Australia.

The AIRS instrument flies on NASA's Aqua satellite and is managed by the Jet Propulsion Laboratory, Pasadena, California, under contract to NASA. JPL is a division of the California Institute of Technology in Pasadena.