Terra images were featured on NASA’s Earth Observatory this December.
Icebergs Make Waves off South Georgia Island – Features Moderate Imaging Spectroradiometer (MODIS) images showing icebergs floating offshore of South Georgia Island, more than 1,600 kilometers (1,000 miles) east-northeast of South America’s southern tip. The icebergs make waves in the atmosphere.
Shades of White – MODIS images enable distinction between fog and snow from space
The Ural Mountains – The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) captured images of the Ural Mountains.
Letter Y: Ugab River, Namibia –
The Ugab River looks like a “Y” in the Earth Observatories feature, Reading the ABCs from Space. ASTER on NASA’s Terra satellite captured this false-colored image of the Ugab River running through what appears to be a field of yardangs in northern Namibia.
Letter N for the New Year –
Shiptracks in the atmosphere are visible in this image from NASA’s Terra satellite’s Moderate Imaging Spectroradiometer (MODIS) as part of the new feature, Reading the ABCs from Space from NASA’s Earth Observatory. N is for New Year was the final Image of the Day for 2015.
The American Geophysical Union recently concluded its Fall meeting in San Fransisco, California from December 14 – 18, 2015. As part of the meeting contributions to science were featured on NASA.gov. Data from Terra’s instruments played important roles in collecting data to further research in each of these featured areas. Read the full features from NASA.gov available at the links below.
NASA: Observing the 2015 El Niño – The strongest El Niño since 1997 – 1998 is being monitored for the first time by a host of satellites, including Terra. This video (above) features global data sets from Terra’s instruments and their contribution to El Niño research.
NASA Earth Observatory images by Jesse Allen, using ASTER data from NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team, and Landsat data from the U.S. Geological Survey.
Fed primarily from agricultural irrigation runoff, the Salton Sea in southern California’s Sonoran Desert has dropped by 8 feet since 1984. While drought in California has contributed to the receding shoreline, water conservation efforts also play a role. The sea may be reduced to two small pools by the 2030s. The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite captured this image showing the exposed Deltas along its southern shore.
NASA Earth Observatory image by Jesse Allen, using data from NASA/GSFC/METI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team.
The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite, captured the image of Prince Patrick Island in Northern Canada. The image was featured on NASA’s Earth Observatory, showing the dendritic drainage pattern of interlocking steam and river channels, as well as, strike-slip faults, evidence of Prince Patrick’s seismic history. Prince Patrick Island is usually surrounded in sea ice, while temperatures average -33 degrees Celcius in January. This cold, inhospitable terrain is not a frequent travel destination, but through satellite imagery, much can be learned about this mostly uninhabited part of our planet.
Mount Denali received not only a new name on August 30, 2015, it also received a new elevation. Using the Global Digital Elevation Model (GDEM) product from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) data, the listed elevation for Moutn Denali went from 20,320 feet to 20,310 feet. The reduction in elevation was due to a more detailed global elevation survey made possible with the high resolution data from ASTER in the GDEM. Better technology led to a more accurate elevation.