Views of the Southwest under a low sun

Shortly after sunrise March 5, 1997 NOAA-12 acquired a clear view of the southwest U.S. The sun was low in the east so the image shows a lot of relief. A map of the pass shows that the Grand Canyon was at about the sunrise line so its image is still a bit dark. White sands area farther east is brighter.

The full image is available but it is large (613 Kb). Two shaded relief maps are also available: one illuminated from the east, and another more traditionally illuminated from the northwest. Both are nearly 1.3 Mb so small subsections are included below. The map illuminated from the east was made to match the satellite view. The map has no true shadows, but the actual image shows long shadows from mountain peaks, especially in the western part where the sun is lower in the sky. Snow is visible in some areas, especially in Colorado (in the full image).

AVHRR channel 3, near infrared, was used to make the image. The full image (and the full size maps) may best be explored with the help of a detailed atlas.

ImageMap 1Map 2
Grand Canyon
The Kaibab Plateau is the high area extending north/south near the middle of this image. Its eastern edge catches the light from the rising sun, as does the southeast edge of the Paria Plateau to the northeast. Direct sunlight has not yet penetrated the depths of the canyon.

Four Corners area
The San Juan River flows diagonally nearly through the four corners of Utah, Colorado, Arizona, and New Mexico (from left to right, top to bottom). Mesa Verde is the leaf shaped area near the east edge of this subimage, just north of the Colorado state line. To its left is Sleeping Ute Mountain. The high area in Arizona nearest the four corners is the Carrizo Mountains. Light snow brightens up some of the area.

Flagstaff and north
The San Francisco Mountains catch the light of the rising sun just south of center in this subimage. Flagstaff is just to their south. The Grand Canyon is at the top, still full of shadow. Just south of the canyon is the Coconino Plateau, its eastern edge is brightly lit.

San Rafael Swell
In the center of this view the rocks bulge upward forming the San Rafael Swell in Utah. The rugged Wasatch Plateau is to the west. The peak casting a long shadow near the southwest corner is Thousand Lake Mountain, Capitol Reef National Park is just to its east (extending southward).

White Sands area
The white area is the gypsum sand of White Sands National Monument. To the west are the San Andres Mountains, to the east the Sacramento Mountains. The Tularosa Basin is between. The narrow dark feature north of White Sands is a lava flow, east of that is Sierra Blanca Peak. The map shows a non-existant hole north of White Sands, this is a defect in the data. The small east-west range near the northeast corner is the Capitan Mountains, Smokey the Bear was found there, injured by a forest fire in 1950.

Tucson and north
Tucson is located in the valley at the bottom center of this view. To the north are the Santa Catalina Mountains, to the east are the Rincon Mountains.

Albuquerque area
The valley of the Rio Grande River crosses this subimage from north to south. Albuquerque is located just east of the river a bit to the upper right of center. Two groups of mountains cast long shadows: the Sandia Mountains to the north, the Manzano Mountains to the south.

Grand Staircase area
The southeast edge of Paria Plateau is brightly lit just south of the Arizon/Utah border. The diagonal line to the northeast is Straight Cliffs, the Escalante River flows through the valley beyond. Between the Paria Plateau and Straight Cliffs is the Kaiparowits Plateau.


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