solitary dog sculptor: 08/30/13

viernes, 30 de agosto de 2013

Photos - Fotos: Werner Bischof - Early Work - Part 2 - Links

Werner Bischof
SWITZERLAND. Zurich.
Mercury. 1941

Werner Bischof
SWITZERLAND. Zurich.
Onion. 1941

Werner Bischof
SWITZERLAND. Zurich.
Photomontage. 1941

Werner Bischof
SWITZERLAND. Zurich.
Projected light. 1938.

Werner Bischof
SWITZERLAND. Zurich.
Snail shell. 1941

Werner Bischof
SWITZERLAND. Zurich.
Snails. 1941

Werner Bischof
SWITZERLAND. Zurich.
Snails. 1942

Werner Bischof
SWITZERLAND. Zurich.
Streams. Drawing made by Werner BISCHOF for a portfolio of 24 photos. 1941

Werner Bischof
SWITZERLAND. Zurich.
Tin soldiers. 1941

Werner Bischof
SWITZERLAND. Zurich.
Vine. 1935.

Werner Bischof
Ubre

Werner Bischof
SWITZERLAND. 1943

Werner Bischof
Zurich.

Werner Bischof
Zürich. 1934.
Schoolwork

Links

Photos - Fotos: Werner Bischof - No Alla guerra - No towar - No a la guerra

Photos - Fotos: Werner Bischof - Early Work - Part 1 - Links

Werner Bischofwasborn in Zurich in 1916. From 1932 to 1936 he studiedphotography at Zurich'sSchoolforArts and Crafts, beforeopening a photography and advertisingstudio. Bischofbecamethefirstphotographertojointhe original Magnum founders in 1949

Photos - Fotos: Werner Bischof - Early Work - Part 2 - Links

Ricardo M Marcenaro - Facebook

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Gracias :)

NASA: Flying through Formaldehyde - Hunting for formaldehyde (carcinogenic) - 08.30.13

acquired August 6, 2013 download large image (5 MB, JPEG, 4320x4320)

acquired August 6, 2013 download GeoTIFF file (27 MB, TIFF)

In the past few years, NASA scientist Tom Hanisco has been hunting for formaldehyde, a carcinogenic air pollutant common in smoke. A byproduct of combustion, formaldehyde affects human health and also has significant—but little understood—effects on Earth’s atmosphere. For instance, chemical reactions that break down formaldehyde in the lower atmosphere can produce small airborne particles that have an outsized influence on Earth’s climate. Other reactions involving formaldehyde affect the production of ozone.

Hanisco’s tool for tracking the short-lived and elusive pollutant is a lightweight aircraft sensor he developed at NASA’s Goddard Space Flight Center. Called the In-Situ Airborne Formaldehyde (ISAF), the sensor uses lasers to measure the abundance of formaldehyde in the atmosphere.

ISAF is one of 28 sensors mounted on NASA’s DC-8, a research airplane used in the NASA-led SEAC⁴RS field campaign, which stands for Studies of Emissions, Atmospheric Composition, Clouds and Climate Coupling by Regional Surveys. The campaign began in August and will continue through the end of September. The broad goal is to investigate how the combination of summer storms and pollution from wildfires, cities, and other sources affect air quality and the workings of Earth’s climate.

During the first science flight on August 6, 2013, scientists targeted smoke plumes emanating from a cluster of large wildfires in northern California and southern Oregon, including the Big Windy Complex. When the DC-8 reached the smoke, pilots performed a series of maneuvers that brought the aircraft directly through the smoke numerous times at various altitudes.

As shown in the map above, ISAF detected sharp elevations in formaldehyde, which increased from background levels of 1 to 5 parts per billion in clear air to about 80 parts per billion within the plume. Especially high formaldehyde levels were detected near the Big Windy Complex and off the coast of California, over a deck of low-lying stratus clouds. Where pilots flew overlapping flight paths at different altitudes, only the highest values are shown above.

Hanisco is paying particular attention to the altitudes where formaldehyde shows up in the ISAF data. In some circumstances, formaldehyde produced near the surface can rise fairly high in the atmosphere, where it has the most potent impact on climate. However, atmospheric models struggle to simulate how this vertical transport works. Missions like SEAC⁴RS should help clarify this and improve the models.

During the August 6 flight, ISAF found elevated formaldehyde concentrations between 5,000 and 10,000 feet (1,500 meters to 3,000 meters), not especially high for wildfire emissions. Hanisco notes that strong updrafts from thunderstorms or from pyrocumulus clouds can easily loft pollutants like formaldehyde to three times that height.

“We would love to sample the outflow from a thunderstorm or a pyrocumulus event during a SEAC⁴RS flight,” said Hanisco. “But it’s most important that we sample a wide variety of events. We’re going to compare the chemical reactions that happen within new smoke plumes, old plumes, wet plumes, dry plumes, calm plumes, and turbulent plumes.”

SEAC⁴RS, the most complex NASA airborne science campaign of the year, will be conducted from Houston’s Ellington Field, which is operated by the agency’s Johnson Space Center. Aircraft and sensors will probe the atmosphere from top to bottom at a time of year when weather systems are sufficiently strong and regional air pollution and natural emissions are prolific enough to pump gases and particles high into the atmosphere. NASA’s DC-8 and ER-2 aircraft will both participate.

Further Reading
NASA Earth Science Project Office (2013) SEAC⁴RS Accessed August 22, 2013.
NASA (2013) SEAC⁴RS Accessed August 22, 2013.

NASA Earth Observatory image by Robert Simmon, using data from the In-Situ Airborne Formaldehyde Instrument (ISAF) provided by Thomas Hanisco. Caption by Adam Voiland.

Instrument:: Aqua - MODIS

NASA: Flying through Formaldehyde - Hunting for formaldehyde (carcinogenic) - 08.30.13

Ricardo M Marcenaro - Facebook

Poesia - Poesie: Blaise Cendrars - Christophe Colomb - Cristóbal Colón - Links

Christophe Colomb

Ce que je perds de vue aujourd'hui en me dirigeant vers l'est c'est ce que Christophe Colomb découvrait en se dirigeant vers l'ouest
C'est dans ces parages qu'il a vu un premier oiseau blanc et noir qui l'a fait tomber à genoux et rendre grâces à Dieu
Avec tant d'émotion
Et improviser cette prière baudelairienne qui se trouve dans son journal de bord
Et où il demande pardon d'avoir menti tous les jours à ses compagnons en leur indiquant un faux point
Pour qu'ils ne puissent retrouver sa route

Cristóbal Colón

Lo que hoy pierdo de vista dirigiéndome hacia el este es lo que
Cristóbal Colón descubría dirigiéndose hacia el oeste
Fue en estos parajes donde vio un primer pájaro blanco y negro
que lo hizo caer de rodillas y dar gracias a Dios
Con tanta emoción
E improvisar esa plegaria baudeleriana que se halla en su diario de bitácora
y donde pide perdón por haber mentido todos los días a sus
compañeros indicándoles un punto falso
Para que no puedan volver a encontrar su ruta.