File:Railroad Valley, NV center-pivot irrigation (ASTER).jpg
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DescriptionRailroad Valley, NV center-pivot irrigation (ASTER).jpg |
English: These ASTER sub-images cover an area of 6 x 9 km in Railroad Valley, NV, and were acquired August 17, 2001. The top image shows center-pivot irrigated fields, with healthy vegetation in red. The middle image displays the Normalized Difference Vegetation Index (NDVI), a calculated quantity that portrays the amount of vegetation. The color code shows highest vegetation content in red, orange, yellow, green, blue, purple, and the lowest vegetation concentrations in black. The bottom image is a thermal infrared channel, with warmer temperatures in white, and colder in black. In the thermal image, the northern-most and western-most fields are markedly colder on their northwest areas, even though no differences are seen in the visible image or the NDVI image. This can be attributed to the presence of excess water, which can lead to crop damage. The combination of information from different bands is a powerful tool to monitor crop health and maintenance procedures. The image is centered at 38.5 degrees north latitude, 115.7 degrees west longitude. |
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Date | Taken on 17 August 2001 | ||
Source |
Railroad Valley, NV center-pivot irrigation (direct link)
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Author | NASA/METI/AIST/Japan Space Systems, and U.S./Japan ASTER Science Team |
Camera location | 38° 30′ 00″ N, 115° 42′ 00″ W | View this and other nearby images on: OpenStreetMap | 38.500000; -115.700000 |
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This media is a product of the Terra mission Credit and attribution belongs to the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) team, NASA/METI/AIST/Japan Space Systems |
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Public domainPublic domainfalsefalse |
This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ||
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:30, 7 May 2023 | 600 × 1,250 (44 KB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of https://asterweb.jpl.nasa.gov/gallery/images/center_pivot.jpg via Commons:Spacemedia |
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