Wednesday, April 14, 2010
Heavy electric storms over South Karnataka and Andhra
This video shows the past 6 hrs satellite images loop.
From 12:30pm IST to 6:30 pm IST.
Very heavy electric (Thunder) showers over SOuth Karnataka, South Andhra, Central Andhra and even into South-west Orissa.
Showery activity can also be traced over Kerala western ghats.
For the past 24 hrs the South-west Bay, South of Srilanka and Gulf of mannar was very active with lots of showery activity and it continues to be like that at present (6:30pm) as well.
South extreme of Tamilnadu and Kerala was under high cloud cover from 12pm.. but no reports of rain yet.
Category:
India,
Summer-10,
Weather Updates
Rainfall on 13-Apr, As usual a WET N-E states and somw showers over Karnataka and Kerala .. http://yfrog.com/a4cy4g
http://ping.fm/qqPUG ... already 2:30pm, we have good thunder cells over central + N-E Andhra and some over Chatisgarh and Orissa
Super storms south of Extreme peninsula is just touching the land and NO reports of rain yet from that zone .. http://ping.fm/9UsFU
RT @seb_jilu: Marayoor, a rain-shadow village on the eastern slopes of the Western Ghats , is 40 kms .. http://avoo.net/fcxmt
http://ping.fm/tI15P ... Head of this "Mannar" thunder storm is even touching South fringes of Tamilnadu (Kanyakumari)
7.2-Magnitude Quake near Mexicali, Mexico : 4-Apr-2010
In the southwestern corner of North America, a complicated network of subterranean fractures reveals how the ongoing collision of the Pacific and North America tectonic plates affects Earth’s crust. These weak spots (faults to geologists) occur along the boundary where the two plates grind past each other. On April 4, 2010, a major earthquake (magnitude 7.2) and numerous aftershocks shook the ground in the vicinity of the Laguna Salada Fault in northern Baja California.
This topographic map of the area shows major faults (red lines), as well as the epicenter of the 7.2-magnitude quake (darkest circle) and all 4.0-or-larger aftershocks that occurred through 19:25 UTC on April 5 (12:25 p.m. U.S. Pacific Time). The topography is from digital elevation data collected by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite.
According to the U.S. Geological Survey (USGS), the Pacific plate moves northwest with respect to the North America plate at about 45 millimeters per year at the latitude where the quake occurred. The area is about 60 kilometers (40 miles) south of the Mexico-United States border. The USGS describes the geologic setting as “a series of northwest-trending strike-slip (transform) faults that are separated by pull-apart basins.”
These basins are evident in the topographic image. The larger structure is the Salton Trough, a depression that stretches from the Gulf of California, through the modern Colorado River Delta, and northwestward into California as far as the Salton Sea. A line of mountains separates the larger eastern part of the trough (called the Imperial Valley in the United States and the Mexicali Valley in Mexico) from the smaller Maguata Basin (also called the Laguna Salada Basin) to the west.
The USGS reported that the location of the Baja quake was consistent with a rupture of the southeastern end of the Laguna Salada Fault, but said that a definite location would require additional information. Aftershocks extended along the fault system in both directions.
This topographic map of the area shows major faults (red lines), as well as the epicenter of the 7.2-magnitude quake (darkest circle) and all 4.0-or-larger aftershocks that occurred through 19:25 UTC on April 5 (12:25 p.m. U.S. Pacific Time). The topography is from digital elevation data collected by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite.
According to the U.S. Geological Survey (USGS), the Pacific plate moves northwest with respect to the North America plate at about 45 millimeters per year at the latitude where the quake occurred. The area is about 60 kilometers (40 miles) south of the Mexico-United States border. The USGS describes the geologic setting as “a series of northwest-trending strike-slip (transform) faults that are separated by pull-apart basins.”
These basins are evident in the topographic image. The larger structure is the Salton Trough, a depression that stretches from the Gulf of California, through the modern Colorado River Delta, and northwestward into California as far as the Salton Sea. A line of mountains separates the larger eastern part of the trough (called the Imperial Valley in the United States and the Mexicali Valley in Mexico) from the smaller Maguata Basin (also called the Laguna Salada Basin) to the west.
The USGS reported that the location of the Baja quake was consistent with a rupture of the southeastern end of the Laguna Salada Fault, but said that a definite location would require additional information. Aftershocks extended along the fault system in both directions.
Category:
Articles,
EarthQuakes,
NASA,
World
Global Aerosols March 2010
March 2010 was a spectacular month for dust storms. For much of the month, dust blew across Africa’s Sahara Desert and over the Atlantic Ocean. A monitoring station on the island of Barbados in the Caribbean recorded the highest dust concentrations over the island in the past three years. China also saw massive dust storms that swept over the Pacific from the Gobi Desert in China’s interior.
The image shows the concentration of particles in the atmosphere (aerosols) during March 2010. A dark brown plume extends west from Africa where thick dust blew over the ocean. Dark brown patches also cover parts of China and Southeast Asia where aerosols clouded the sky. Dust contributed to the aerosols in the north, but smoke is the likely culprit for high aerosols in the south. Fires burned extensively in Southeast Asia through March, veiling the region in a pall of smoke.
This image was made from data collected by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite throughout March 2010. Areas where the sensor couldn’t collect aerosol measurements are gray. Since aerosols such as dust, smoke, and haze are often pale, it is difficult to record concentrations over bright surfaces like the deserts of Africa, Arabia, and Asia or the snow-covered landscape of North America, Europe, Asia, and Antarctica. Other gray areas show where clouds consistently blocked the sensor’s view of aerosols.
The image shows the concentration of particles in the atmosphere (aerosols) during March 2010. A dark brown plume extends west from Africa where thick dust blew over the ocean. Dark brown patches also cover parts of China and Southeast Asia where aerosols clouded the sky. Dust contributed to the aerosols in the north, but smoke is the likely culprit for high aerosols in the south. Fires burned extensively in Southeast Asia through March, veiling the region in a pall of smoke.
This image was made from data collected by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite throughout March 2010. Areas where the sensor couldn’t collect aerosol measurements are gray. Since aerosols such as dust, smoke, and haze are often pale, it is difficult to record concentrations over bright surfaces like the deserts of Africa, Arabia, and Asia or the snow-covered landscape of North America, Europe, Asia, and Antarctica. Other gray areas show where clouds consistently blocked the sensor’s view of aerosols.
Latest sat. at 8:30am shows a huge thunder cell over south Gulf of Mannar.. the whole of sea zone is very active.. http://yfrog.com/72csuj
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