Posts Currently viewing the tag: "USA"

In the below Envisat image (acquired on 6 March 2010) North America’s three lakes are pictured. Snow cover is evident across the land, and we can see ice build-up along some of the lakes’ edges. Lake Erie is the fourth largest lake (by surface area) of the five Great Lakes in North America…(Read More)

Snowfall returned to the mountain ranges of western and central Colorado on September 18—the first significant accumulation of the 2002-03 snow season. Most of Colorado experienced drought conditions throughout the summer, so this precipitation was badly needed. In this true-color scene, acquired on Sept. 20 by the Terra MODIS sensor, the bright…(Read More)

The Moderate Resolution Imaging Spectroradiometer (MODIS), flying aboard NASA’s Terra and Aqua satellites, measures snow cover over the entire globe every day, cloud cover permitting. At spatial resolutions of up to 500 meters per pixel, MODIS allows scientists to distinguish between snow and clouds, both of which appear bright white when seen from above…(Read More)

The Las Vegas metropolitan area is located near the southern tip of Nevada, within the Mohave Desert. Astronauts on the International Space Station (ISS) observe and photograph numerous metropolitan areas when they are illuminated by sunlight, but the extent and pattern of these areas is perhaps best revealed at night by city lights. The surrounding…(Read More)

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