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The Gateway to Astronaut Photography of Earth
(NASA Crew Earth Observations)
Astronaut Photography of Earth - Display Record
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IdentificationMission: ISS013 Roll: E Frame: 78295 Mission ID on the Film or image: ISS013
Country or Geographic Name: ITALY
Features: PAN-ALPS, PO R. VALLY, SMOG
Center Point: Latitude: 44.0 Longitude: 10.0 (Negative numbers indicate south for latitude and west for longitude)
Stereo: (Yes indicates there is an adjacent picture of the same area)
ONC Map ID: JNC Map ID:
CameraCamera Tilt: High Oblique
Camera Focal Length: 38mm
Camera: E4: Kodak DCS760C Electronic Still Camera
Film: 3060E : 3060 x 2036 pixel CCD, RGBG array.
Percentage of Cloud Cover: 25 (11-25)
GMT Date: 20060906 (YYYYMMDD) GMT Time: 123809 (HHMMSS)
Nadir Point Latitude: 48.6, Longitude: 16.8 (Negative numbers indicate south for latitude and west for longitude)
Nadir to Photo Center Direction: Southwest
Sun Azimuth: 217 (Clockwise angle in degrees from north to the sun measured at the nadir point)
Spacecraft Altitude: 184 nautical miles (341 km)
Sun Elevation Angle: 42 (Angle in degrees between the horizon and the sun, measured at the nadir point)
Orbit Number: 599
CaptionsHaze in the Po River Valley, Italy:
Taken from an oblique angle and looking toward the southwest, this astronaut photograph shows parts of northern Italy, Corsica, Sardinia, the Adriatic Sea, and the Mediterranean. Over part of the Alps, skies are clear, but elsewhere, the view of the land and sea is largely obscured. Bright white clouds cover much of the region, but over northern Italy, the “clouds” are different. There, dingy, gray-blue haze hangs over the Po River Valley.
The Po River, Italy’s longest river, runs approximately 650 kilometers (400 miles) from the southwestern Alps to the Adriatic Sea, passing indirectly through Milan, and through Turin. As Turin is an industrial center of a heavily urbanized region, pollutants often cloud the skies overhead. In fact, northern Italy is one of Europe’s pollution hotspots, and the smog often grows thick enough to be seen from space. Smog in this area is so persistent that astronauts on the International Space Station have photographed other images of it, in October 1997 and February 2003. Recurring accumulations of smog in the Po River Valley, however, result from more than just the industrial emissions from the area around Turin. In this area, smog is often trapped at the base of the Alps by high atmospheric pressure.
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Recommended Citation: Earth Science and Remote Sensing Unit, NASA-Johnson Space Center. "The Gateway to Astronaut Photography of Earth." .