Category Archives: Eyes in the Sky

Video: NASA Aqua satellite maps carbon monoxide pollution from western US wildfires

This NASA JPL video displays ” the spread of carbon monoxide pollution from California’s Rim Fire and other Western U.S. wildfires across North America” using data from Atmospheric Infrared Sounder instrument on NASA’s Aqua spacecraft.

Italy, the Moon, and a passing moment on the ISS

Italian astronaut Luca Parmitano on the International Space Station posts some beautiful pictures and a wonderful description of seeing his country at night from space:

Moon-rise-1024x679[1]The edge of the Moon is seen through high altitude noctilucent clouds.

Parmitano writes vividly about his view from the Cupola:

Using my torch, I enter Cupola and slowly, deliberately, I open each window, one after the other. Even though there are just a matter of minutes left before we fly over Italy, we are still above central Africa, where a raging monsoon stretches to fill my entire field of vision, from one horizon to the other, for hundreds of kilometres. In the darkness of the orbital night, lightning flashes an unreal light on one of the most beautiful scenes I have ever seen. The blue light streaks across my view, flaring from dozens of storm cells. With a frantic, syncopated rhythm worthy of the greatest percussionists, the white clouds lit up by the lightning momentarily rip open the black African night, made darker by the absence of street lighting. There is a violence to it that I can almost feel from up here, 400 kilometres above the highest clouds. The lack of thunder lends a surreal air to the storms, and the silence is deafening.

[…]

Looking towards the north, I see the Balearic Islands fully lit, and I consciously refrain from looking east straight away: I want to savour these moments. Beneath me, through Cupola’s central window, I see Tunis, Hammamet and then Sfax, and I realise there’s not much time left. Through the window right in front of me, lit up like village streets in Carnival, I see one of the most overwhelming sights I’ve ever seen as an astronaut: an unmistakable shape, completely cloudless, the boot of Italy lies perfectly outlined by lights that run continuously from the tip of Calabria to the Ligurian coast, tracing its profile like a brand-new constellation in the nocturnal depths of the Mediterranean Sea. Sardinia and Corsica, not as bright as the rest, move slowly across the scene, and on the north-eastern horizon, a violent storm seems to ravage central Europe, from Austria to Germany. From up here, Naples and Rome proudly dominate the scene, radiating a splendour above all other cities. But Bologna, Florence, Milan, Turin – they are all visible, thousands of kilometres away. Vesuvius forms a dark circle in a land utterly saturated by light.

[…]

It’s late, and tomorrow will be a long day. With those lights still filling my eyes, I slowly close the seven windows and cross the Station to return to my sleeping pod. Not even dreams could replace the beautiful reality that revolves, oblivious, beneath us.

Mediterraneo[1]

Video: Perpetual Ocean

Perpetual Ocean is a cool visualization of some of the world’s surface ocean currents.

http://youtu.be/G5LjyXKXYE4

Video: animation of glacier/ice cap changes from GRACE satellite

A video from the NASA GRACE  (Gravity Recovery and Climate Experiment):

Animation shows the location of mountain glaciers and ice caps around the world with data from the GRACE mission to show recent trends in ice mass loss or gain.

George Clooney keeps an eye on Sudanese dictator by satellite

A reader points me to this article about George Clooney and his political activism, particularly his interest in the conflict between North and South Sudan: George Clooney tastes sustainability in Nespresso coffee – Lucy Siegle/theguardian.com

“Most of the money I make on the [Nespresso] commercials I spend keeping a satellite over the border of North and South Sudan to keep an eye on Omar al-Bashir [the Sudanese dictator charged with war crimes at The Hague]. Then he puts out a statement saying that I’m spying on him and how would I like it if a camera was following me everywhere I went and I go ‘well welcome to my life Mr War Criminal’. I want the war criminal to have the same amount of attention that I get. I think that’s fair.” [My emphasis]

One cannot literally keep a satellite poised over an arbitrary spot on earth but activists can certainly use commercial earth observation satellites to monitor particular areas.  (Sats in geostationary orbit can hold a fixed position over the equator but even in that case they are far too high for high resolution imaging.) Satellite images might become available for a given spot every few days.

In the next few years, George Clooney and others will have greatly enhanced means to monitor dictatorial regimes as well as to spot hidden environmental disasters, trawlers fishing illegally, etc. In development are constellations of low cost earth imaging satellites such as Skybox Imaging and Planet Labs that aim to make it possible to monitor a particular spot on earth more frequently, even multiple times per day.

Already, the company MapBox is contracting with imaging satellite companies to offer processed imagery of most any spot around the world in real or near real time: Real Time Imagery via MapBox Satellite Live – MapBox. See also MapBox Plans to Bring You Super-Fresh Satellite Imagery – Wired Science.

The goal of Mapbax is provide individuals and small businesses and organizations with limited resources the equivalent of a GIS (Geographic Information Systems) analyst who will turn that raw satellite data into something that is useful for them at a bargain price.

PlanetLabsDove2image_April26_2013

An image taken from Planet Labs Dove 2 satellite on April 26, 2013. (Larger size)

More resources on earth observation in the HobbySpace Eyes in the Sky section.