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#31
Uragano Michael

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By September 9, 2012, Hurricane Michael’s wind speeds dropped from what they were two days earlier. A Category 1 hurricane, Michael had maximum sustained winds of 90 miles (150 kilometers) per hour on September 9. The U.S. National Hurricane Center (NHC) reported that Michael was located roughly 955 miles (1,535 kilometers) west-southwest of the Azores.

On September 9, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terra satellite captured this natural-color image. A fairly compact storm compared to nearby Tropical Storm Leslie, Michael nevertheless sported the spiral shape and distinct eye common in hurricanes.

By September 10, Michael’s wind speeds had dropped further, to 80 miles (130 kilometers) per hour. The storm was headed west, but was expected to turn toward the northwest overnight and weaken further. No coastal watches or warnings were in effect, the NHC reported.


Hurricane Michael : Natural Hazards
C'è un confine sottile tra uno sbaglio e un colpo di genio; purtroppo dovresti essere un genio per vederlo.

Sheldon Cooper

L'Italia è ancora come la lasciai, ancora polvere sulle strade,
ancora truffe al forestiero, si presenti come vuole.
Onestà tedesca ovunque cercherai invano,
c'è vita e animazione qui, ma non ordine e disciplina;
ognuno pensa per sé, è vano, dell'altro diffida,
e i capi dello stato, pure loro, pensano solo per sé


Johann Wolfgang von Goethe
  Cita messaggio
#32
Super-Tifone Sanba

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Sanba formed as a tropical depression over the western Pacific Ocean on September 10, 2012, and strengthened to a typhoon by September 12. On September 13, 2012, the U.S. Navy’s Joint Typhoon Warning Center (JTWC) reported that Sanba had maximum sustained winds of 135 knots (250 kilometers per hour) and gusts up to 165 knots (305 kilometers per hour). Located roughly 600 nautical miles (1,100 kilometers) south of Kadena Air Base in Japan, the storm was headed for the Korean Peninsula.

The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured this natural-color image of Typhoon Sanba on September 13, 2012. Clouds from the typhoon extended over part of the Philippines (image lower left).

The JTWC forecast that Sanba would strengthen slightly over the next 12 hours, with sustained winds reaching up to 140 knots (260 kilometers per hour).


Typhoon Sanba : Natural Hazards
C'è un confine sottile tra uno sbaglio e un colpo di genio; purtroppo dovresti essere un genio per vederlo.

Sheldon Cooper

L'Italia è ancora come la lasciai, ancora polvere sulle strade,
ancora truffe al forestiero, si presenti come vuole.
Onestà tedesca ovunque cercherai invano,
c'è vita e animazione qui, ma non ordine e disciplina;
ognuno pensa per sé, è vano, dell'altro diffida,
e i capi dello stato, pure loro, pensano solo per sé


Johann Wolfgang von Goethe
  Cita messaggio
#33
Il sistema temporalesco sullo Ionio

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C'è un confine sottile tra uno sbaglio e un colpo di genio; purtroppo dovresti essere un genio per vederlo.

Sheldon Cooper

L'Italia è ancora come la lasciai, ancora polvere sulle strade,
ancora truffe al forestiero, si presenti come vuole.
Onestà tedesca ovunque cercherai invano,
c'è vita e animazione qui, ma non ordine e disciplina;
ognuno pensa per sé, è vano, dell'altro diffida,
e i capi dello stato, pure loro, pensano solo per sé


Johann Wolfgang von Goethe
  Cita messaggio
#34
Oggi mi va di premiare la bellissima (e proficua per le mie zone) ciclogenesi italica :wink:

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Mike:"You know what happened. The question is, can you live with it?”

"Quando il sole della cultura è basso, i nani hanno l'aspetto di giganti"
  Cita messaggio
#35
L'occhio del Super-Tifone Sanba

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C'è un confine sottile tra uno sbaglio e un colpo di genio; purtroppo dovresti essere un genio per vederlo.

Sheldon Cooper

L'Italia è ancora come la lasciai, ancora polvere sulle strade,
ancora truffe al forestiero, si presenti come vuole.
Onestà tedesca ovunque cercherai invano,
c'è vita e animazione qui, ma non ordine e disciplina;
ognuno pensa per sé, è vano, dell'altro diffida,
e i capi dello stato, pure loro, pensano solo per sé


Johann Wolfgang von Goethe
  Cita messaggio
#36
Super Typhoon Jelawat

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acquired September 24, 2012

Super Typhoon Jelawat off the Philippines : Natural Hazards
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Mike:"You know what happened. The question is, can you live with it?”

"Quando il sole della cultura è basso, i nani hanno l'aspetto di giganti"
  Cita messaggio
#37
Ciclone extratropicale colpisce l'Alaska

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A strong extra-tropical cyclone approached the southern coast of Alaska on September 26, 2012. According to The Washington Post Capital Weather Gang, the storm had a minimum central pressure of 956 millibars, lower than that of some hurricanes.

This natural-color image was collected by the Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi NPP satellite.


Strong Storm Approaches Alaskan Coast : Natural Hazards
C'è un confine sottile tra uno sbaglio e un colpo di genio; purtroppo dovresti essere un genio per vederlo.

Sheldon Cooper

L'Italia è ancora come la lasciai, ancora polvere sulle strade,
ancora truffe al forestiero, si presenti come vuole.
Onestà tedesca ovunque cercherai invano,
c'è vita e animazione qui, ma non ordine e disciplina;
ognuno pensa per sé, è vano, dell'altro diffida,
e i capi dello stato, pure loro, pensano solo per sé


Johann Wolfgang von Goethe
  Cita messaggio
#38
Tropical Cyclone Anais
acquired October 14, 2012
Citazione:Anais formed as a tropical storm over the southern Indian Ocean on October 12, 2012, and strengthened into a tropical cyclone the next day. By October 15, 2012, the U.S. Navy’s Joint Typhoon Warning Center (JTWC) reported that Anais had maximum sustained winds of 100 knots (185 kilometers per hour) and gusts up to 125 knots (230 kilometers per hour). The storm was located about 540 nautical miles (1,000 kilometers) southwest of Diego Garcia.
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NASA image courtesy Jeff Schmaltz, LANCE MODIS Rapid Response Team at NASA GSFC. Caption by Michon Scott.
Instrument: Terra - MODIS


Typhoon Prapiroon
acquired October 15, 2012
Citazione:On October 9, 2012, two days after forming over the Pacific Ocean, Prapiroon strengthened into a typhoon. It retained at typhoon strength on October 15, when the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured this natural-color image. Prapiroon’s spiral arms stretched over Okinawa, Japan.
The same day that MODIS acquired this image, the U.S. Navy’s Joint Typhoon Warning Center (JTWC) reported that Prapiroon had maximum sustained winds of 70 knots (130 kilometers per hour) and gusts up to 85 knots (155 kilometers per hour). These wind speeds were down from those reported several days earlier, but Prapiroon remained a strong storm, centered about 305 nautical miles (565 kilometers) southeast of Kadena Air Base in Okinawa.
On October 15, the JTWC projected storm track for Prapiroon showed the storm moving roughly northward over the western Pacific Ocean then turning toward the northeast and following a path roughly parallel to the Japanese island of Honshu.
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NASA image courtesy Jeff Schmaltz, LANCE MODIS Rapid Response Team at NASA GSFC. Caption by Michon Scott.
Instrument: Aqua - MODIS


NASA Earth Observatory : Home
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Mike:"You know what happened. The question is, can you live with it?”

"Quando il sole della cultura è basso, i nani hanno l'aspetto di giganti"
  Cita messaggio
#39
Hurricane Paul

acquired October 15, 2012
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NASA image courtesy Jeff Schmaltz, LANCE MODIS Rapid Response Team at NASA GSFC. Caption by Michon Scott.
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Hurricane Paul : Natural Hazards</dd></dl>
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Mike:"You know what happened. The question is, can you live with it?”

"Quando il sole della cultura è basso, i nani hanno l'aspetto di giganti"
  Cita messaggio
#40
Hurricane Sandy (Atlantic Ocean)

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Early in the morning on October 25, 2012, the Suomi NPP satellite passed over Hurricane Sandy after it made landfall over Cuba and Jamaica, capturing this highly detailed infrared imagery, showing areas of deep convection around the central eye. Besides the highly detailed infrared imagery, the satellite’s day night band captured detailed visible-like imagery of the cloud tops, along with the city lights of Puerto Rico and the Virgin Islands.

As most polar-orbiting satellites fly over an area, the visible and infrared sensors scan left to right. Data in the center part of the scan typically has the highest resolution and quality; farther out in the scan, the imagery gets distorted. An improvement in the Suomi NPP's VIIRS sensor over its predecessors reduces the loss of data quality along the length of the scan. Hurricane Sandy is a perfect example of the importance of this improvement – both times the satellite passed over Sandy on October 25th in consecutive orbits, the storm was on the edge of the scan area, which would have meant decreased image quality from previous satellites, but not Suomi NPP. Only at the very limits of the imagery (left hand side) can the edge of scan issues be seen in the day-night band image. These distortions would be much more pronounced in similar imagery from AVHRR or MODIS.

Photo Credit: NOAA/NASA
[Immagine: xzCrUL7.gif]
Mike:"You know what happened. The question is, can you live with it?”

"Quando il sole della cultura è basso, i nani hanno l'aspetto di giganti"
  Cita messaggio


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