NASA: It is happening now - Está sucediendo ahora - 07-04-11 - Large Fires in Northern Mexico - Saharan Dust off Portugal - Rising Waters on the James River. USA
Posted by Ricardo Marcenaro | Posted in NASA: It is happening now - Está sucediendo ahora - 07-04-11 - Large Fires in Northern Mexico - Saharan Dust off Portugal - Rising Waters on the James River. USA | Posted on 16:50
Open your mind, your heart to other cultures
Abra su mente, su corazón a otras culturas
You will be a better person
Usted será una mejor persona
RM
Abra su mente, su corazón a otras culturas
You will be a better person
Usted será una mejor persona
RM
Large Fires in Northern Mexico
Two large and smoky wildfires continued to burn in northern Mexico on April 6, 2011. The fires are outlined in red in this image, taken by the Moderate Resolution Imaging Spectroradiometer (MODIS)Terra satellite. The fires are burning in a remote mountainous area of Mexico’s Coahuila state near the Texas border. on NASA’s
According to the Mexican Secretary of Environment and Natural Resources, fires in Coahuila had burned more than 40,000 hectares of mostly brush and pastureland as of April 5. Strong winds, including a tornado, and steep, inaccessible terrain had been making the fires difficult to combat. As of April 5, 830 firefighters are working to control the fires.
Cold winter temperatures may have led to dangerous fire conditions. A cold snap in February damaged plants throughout northern Mexico. The dead, dry plant matter provided fuel for the fires, said news reports.
References
- Fox News Latino. (2011, March 30). Hundreds of firefighters battle huge blaze in northern Mexico. Accessed April 7, 2011.
- Secretario de Medio Ambiente y Recursos Naturales. (2011, April 5). Com. 142/11 – SEMARNAT reporta siuatción de incendios en Coahuila. Accessed April 7, 2011.
NASA image courtesy Jeff Schmaltz, MODIS Rapid Response Team at NASA GSFC. Caption by Holli Riebeek.
- Instrument:
- Terra - MODIS
Saharan Dust off Portugal
A thick plume of dust hangs over the Atlantic Ocean off the coast of Portugal in this image from the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite on April 6, 2011.
The dust blew in from the Sahara desert in North Africa, picked up by the strong winds associated with a low-pressure system. The tell-tale circular cloud pattern of the low-pressure system was visible in an Aqua MODIS image from the previous day. The low-pressure system channeled the dust west and then north, resulting in the plume off Portugal. The animation (link above) from the GEOS-5 model at NASA’s Goddard Space Flight Center shows the evolution of the dust plume between April 4 and April 9. Based on forecast weather conditions, the model predicted patterns that are similar to those shown in the MODIS image.
Airborne dust plays many roles in large-scale Earth processes. Dust is one of the most abundant aerosol particles in the atmosphere, and a natural seed for cloud formation. Dust particles and the clouds they generate can reflect energy from the Sun back into space, effectively shading Earth’s surface and cooling its temperature.
Dust also carries minerals, particularly iron, that help fertilize the Earth’s oceans. In iron-poor waters, dust provides essential nutrients for phytoplankton, tiny plants and plant-like organisms growing in the sunlit surface waters. In fact, a phytoplankton bloom colors the Atlantic beneath the dust in this image, though there is not necessarily a connection between the dust storm and this particular bloom.
NASA image courtesy Jeff Schmaltz, MODIS Rapid Response Team at NASA GSFC. Animation from the Global Modeling and Assimilation Office GEOS-5 aerosol forecast. Caption by Holli Riebeek.
- Instrument:
- Terra - MODIS
Rising Waters on the James River
Midwestern snow continued melting, and Midwestern rivers continued rising in early April 2011. The Advanced Hydrological Prediction Service (AHPS) of the U.S. National Weather Service issued flood warnings for cities along the James River in South Dakota, including Huron, Forestburg, Mitchell, Scotland, and Yankton. The AHPS reported major flooding at all of those locations on April 5, as well as moderate flooding along the Big Sioux River to the east.
The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite acquired these images on April 4, 2011 (top), and March 5, 2011 (bottom). Both images use a combination of infrared and visible light to increase the contrast between water and land. Snow is bright turquoise. Clouds are pale blue-green, and cast dark shadows. Water ranges in color from electric blue to navy. Vegetation is green, and bare ground is earth toned.
The most striking difference between March and April is the retreat of snow cover. Snow blankets most of the region on March 5, and very little snow remains a month later. The Missouri and James Rivers become much more conspicuous as spring progresses. In early March, the Missouri River appears mostly covered by ice while the James River is indistinguishable from the surrounding snow cover. A month later, both rivers are obvious, as are numerous small lakes. Partially obscured by clouds, standing water also appears in the northeast in early April (image upper right). While the Missouri River may give the appearance of being more swollen in the April 4 image, the AHPS flood warnings on April 5 pertained to the James River.
References
- U.S. National Oceanic and Atmospheric Administration. National Weather Service. Advanced Hydrologic Prediction Service. Accessed April 5, 2011.
NASA images courtesy MODIS Rapid Response Team, Goddard Space Flight Center. Caption by Michon Scott.
- Instrument:
- Aqua - MODIS
NASA: It is happening now - Está sucediendo ahora - 07-04-11 - Large Fires in Northern Mexico - Saharan Dust off Portugal - Rising Waters on the James River. USA
You have an alphabetical guide in the foot of the page in the blog: solitary dog sculptor
In the blog: Solitary Dog Sculptor I, the alphabetical guide is on the right side of the page
Thanks
Usted tiene una guía alfabética al pie de la página en el blog: solitary dog sculptor
En el blog: Solitary Dog Sculptor I, la guia alfabética está en el costado derecho de la página
Gracias
Ricardo M Marcenaro - Facebook
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My blogs are an open house to all cultures, religions and countries. Be a follower if you like it, with this action you are building a new culture of tolerance, open mind and heart for peace, love and human respect.
Thanks :)
Mis blogs son una casa abierta a todas las culturas, religiones y países. Se un seguidor si quieres, con esta acción usted está construyendo una nueva cultura de la tolerancia, la mente y el corazón abiertos para la paz, el amor y el respeto humano.
Gracias :)
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