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Sunburn effect (as measured by the UV index) is the product of the sunlight power spectrum (radiation intensity) and the erythemal action spectrum (skin sensitivity) across the range of UV wavelengths. [9] [10] The UV index is a number linearly related to the intensity of sunburn-producing UV radiation at a given point on the Earth's surface.
Little is known about the history of the oldest exposed rocks in the area due to extensive metamorphism.This somber, gray, almost featureless crystalline complex is composed of originally sedimentary and igneous rocks with large quantities of quartz and feldspar mixed in. [1] The original rocks were transformed to contorted schist and gneiss, making their original parentage almost unrecognizable.
July 2024 was the hottest month ever recorded in Death Valley, with a mean daily average temperature over the month of 108.5 °F (42.5 °C). [34] Four major mountain ranges lie between Death Valley and the ocean, each one adding to an increasingly drier rain shadow effect, and in 1929, 1953, and 1989, no rain was recorded for the whole year. [20]
The temperature index — a measure of what it feels like outside — has hit between 103 and 125 degrees. But that range is lower than the actual temperature in Death Valley, California.
Death Valley is the fifth-largest American national park and the largest in the contiguous United States. It is also larger than the states of Rhode Island and Delaware combined, and nearly as large as Puerto Rico. [10] In 2013, Death Valley National Park was designated as a dark sky park by the International Dark-Sky Association. [11]
Greenwater is located 5.5 miles (8.9 km) north of Funeral Peak in the Funeral Mountains above southeastern Death Valley, [2] at an elevation of 4,288 feet (1,307 m). [1] It is now located within Death Valley National Park , north of Smith Mountain , and south of the Rand, California mining district ruins.
Manly Beacon and Red Cathedral viewed from Zabriskie Point. The Amargosa Chaos is a series of geological formations located in the Black Mountains in southern Death Valley.In the 1930s, geologist Levi F. Noble studied the faulting and folding in the area, dubbing it the "Amargosa chaos" due to the extreme warping of the rock.
The mountains lie a short distance to the east of the Black Mountains, and south of the Amargosa Range, and northwest of the Nopah Range. Ryan, California is in the northern section, and the southern part of the range is within Death Valley National Park.