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California Emergency as Huge Yosemite Fire ‘Rim Fire’ Doubles in Size

37.8N 119.5W

August 26th, 2013 Category: Climate Change, Fires VIIRSSuomi-NPP

USA – August 24th, 2013

Night Image – Fire Front

Firefighters in California are struggling to gain control of a huge wildfire which has reached the edge of Yosemite National Park. The Rim Fire covers nearly 225 sq miles (582 sq km) and threatens a major reservoir serving San Francisco.

The detail image shows the extent of the fire front. The image acquired during the day of the 24 August can be compared with the image taken at night on the same day.

The fire is just 7% contained after burning for more than a week, officials say, up from 2% containment on Friday. Strong winds have fanned the flames closer to nearby towns raising the risk of flying debris sparking more fires.

More than 5,000 homes are endangered by the blaze, which began on 17 August from still unknown causes in the Stanislaus National Forest.

San Francisco and Bridges Crossing San Francisco Bay, USA – February 24th, 2012

37.7N 122.4W

February 24th, 2012 Category: Image of the day

USA - December 28th, 2011

The bright white parts of this orthorectified image mainly belong to the city of San Francisco (lower left quadrant) and the San Francisco Bay Area, a populated region that surrounds the San Francisco and San Pablo estuaries in Northern California. The region encompasses major cities and metropolitan areas of San Francisco, Oakland, and San Jose, along with smaller urban and rural areas.

Several bridges can be observed as white lines spanning the estuaries, including the San Francisco-Oakland Bay Bridge (east of San Francisco), the Golden Gate bridge (north of San Francisco) and the Richmond-San Rafael Bridge (northeast of San Francisco), the northernmost of the east–west crossings of the San Francisco Bay in California, USA, connecting Richmond on the east to San Rafael on the west end.

Bays and Bridges of San Francisco Bay Area, USA – January 31st, 2012

37.7N 122.4W

January 31st, 2012 Category: Image of the day

USA - December 27th, 2011

This orthorectified image shows the city of San Francisco and the San Francisco Bay Area, a region of 7.15 million people in California, USA. It encompasses a land area of about 46.9 square miles (121 km2) on the northern end of the San Francisco Peninsula, giving it a density of about 17,179 people per square mile (6,632 people per km2). It is the most densely settled large city (population greater than 200,000) in the state of California and the second-most densely populated large city in the United States after New York City. Here, this area appears bright white.

What is frequently referred to as the San Francisco Bay is actually a system of several interconnected bays: the San Francisco Bay (bottom) is connected to the San Pablo Bay, which in turn is joined with the Suisun Bay, above the image center. Here, the bridges spanning these bays can be observed as thin white lines over the dark black waters. These are, moving from just above the center to the lower right corner of the full image, the Richmond-San Rafael Bridge, the San Francisco-Oakland Bay Bridge, the San Mateo-Hayward Bridge, and the Dumbarton Bridge.

From San Francisco Across Great Central Valley to Sierra Nevada, USA – May 18th, 2011

37.7N 122.4W

May 18th, 2011 Category: Image of the day, Mountains

USA - May 2nd, 2011

California’s Great Central Valley occupies the lower diagonal half of this image, lying between the Pacific Ocean and the Sierra Nevada. Many fields can be seen dotting the valley’s otherwise green landscape.

Visible on the shores in the lower left quadrant is the city of San Francisco and its nearby metropolitan around, lining the shores of San Francisco Bay and San Pablo Bay.

Mountains and Lakes by Great Central Valley, California

37.0N 120.1W

March 2nd, 2011 Category: Image of the day, Lakes, Mountains

USA - February 11th, 2011

California’s Great Central Valley bordered by mountain ranges, including the Sierra Nevada to the east, the Coast Ranges to the west, and the Tehachapi Mountains to the south.

The Sierra Nevada, as its name suggests, is capped with snow in this image. Several lakes stand out against the white backdrop, the largest of which are Lake Tahoe (near top edge) and Mono Lake (below the former).

Several cities can also be observed in and near the valley, including San Francisco (near the coast in the upper left quadrant) and Bakersfield (near the southern edge of the valley).