Sodium Emission vs. Rayleigh Scattering

We’re not far from the ninth anniversary of the founding of Decaseconds, and I came upon this arresting image of Berkeley Marina, the Marin Headlands, and the Golden Gate Bridge (never before published here) while searching for just the right anniversary shot. I’m fascinated by the way the orange emission of sodium vapor lamps lighting Berkeley (I’m sure now all swapped for white LEDs) matches the Rayleigh-scattered oranges of the winter sunset. The same wavelengths of light, coming from completely different mechanisms.

Sodium Emission vs. Rayleigh Scattering

Every Detail of the Bay

My favorite view of the Bay Area (and the view that first let me define the idea of the civilization gradient as an element of my photography) is layered up with loads of detail. Down in Berkeley Lab is the building where I worked on sabbatical, and across the Bay Bridge is the completed Salesforce Tower hiding in the marine layer. The differences, particularly from the last time I showed a very similar shot from the spring, are in nature: the high-altitude clouds have been replaced with empty skies and that rolling marine layer, while the green hills have shifted to a dry, highly flammable tan.

Every Detail of the Bay

Fire Trails Apart

As busy as the cities of the Bay Area become, there are the spaces in the fire trails (like the one in the foreground) to get some quiet and distance. There’s an odd orthogonality of the senses in being able to see all of the commotion below with none of the accompanying sound.

Fire Trails Apart

In Spring, Clear Weather Reveals the Farallon Islands

Clear spring days are a time when the weather of the east and west coasts unites for a perfect 60ºF and a brilliant sunset. On those days, I could look out from Berkeley Lab and see the Farallones far off shore.

In Spring, Clear Weather Reveals the Farallon Islands

Sabbatical 2017

I finally finished processing the photographs of the transcontinental drive, transient spectroscopy, and Transamerica pyramid that made up my 2017 sabbatical from St. Lawrence University to Berkeley Lab for solar energy research. Check out my favorites, in handy chronological order, by clicking on the image of Alcatraz and the Golden Gate Bridge below:

Sabbatical 2017

Independence Weekend Picnic with a View

Watching the summer sunset behind Oakland, San Francisco, Berkeley, and Marin is the perfect setting for a dinner picnic. This weekend is Memorial Day: the unofficial start of summer in much of the United States and the perfect time (i.e. time off) for picnics and barbecuing. Though this picture came from another big barbecuing holiday (Independence Day), the scene is likely to be replicated this weekend.

Independence Weekend Picnic with a View

(A) Walk in the Woods

Historical patterns of land conservation in the Bay Area mean that the gradient between densely populated and relatively “empty” spaces is particularly steep. That nearby density means that maintaining “wild” spaces requires a theme-park like approach of fenced, paved trails. Given the erosion challenges faced by the peaks of the Adirondacks, perhaps this isn’t the worst solution.

(A) Walk in the Woods