Satellite Image, Photo of Coropuna and Soliman Volcanoes, Peru

Coropuna and Soliman Volcanoes, Peru May 1997. This image shows two magnificent, snow-covered stratovolcanoes located in the Andes Mountains of southern Peru. Just to the left of center lies the 21080 foot (6419 meters) Coropuna Volcano. To the west (above) sits Solimana with at an altitude of 20069 feet (6121 meters). Both have been dormant for the past 100,000 years. To the west (top center and top left of the image) is the deep canyon of the Colohuasi River, which merges with the Ocona River (upper left). As the Andes have continued to rise, these rivers, which flow into the Pacific Ocean, have kept pace by eroding deep canyons and valleys..
Source: National Aeronautics and Space Administration - NASA/JPL/NIMA

Por Carlos Solís
Wildfires in Northern Australia

On May 13, 2002, the Moderate Resolution Imaging Spectroradiometer (MODIS) detected numerous bushfires in northern Australia. It is still fairly early in the fire season there, and these fires may be agricultural or prescribed burns intended to lower the risk of more severe fires later in the dry season. Please note that the high-resolution scene provided here is 500 meters per pixel. For a copy of this scene at the sensors fullest resolution, visit the MODIS Rapidfire site.
Source: Image courtesy Jacques Descloitres, MODIS Land Rapid Response Team at NASA GSFC

Por Carlos Solís
La Ciutat de Mallorca 1644

Map of «La Ciutat de Mallorca» from the priest and mathematician Antonio Garau, 1644

Por Carlos Solís
Floods in Uruguay

Above average rains over the past two months have given rise to floods throughout Uruguay. These false-color images of the areas before and after the flood were acquired on April 2 and 27, 2002, by the Moderate-resolution Imaging Spectroradiometer (MODIS), flying aboard NASA.s Terra spacecraft. Over 3600 hundred people have been evacuated from their homes in Uruguay, and many highways have been shut down. The large river running down the border between Uruguay and Argentina is the Uruguay River, and the spidery lake in the center of Uruguay is Lake Rincon del Bonete. Normally, the lake and its tributaries cover a much smaller area (April 2 image).In these false-color images, land surfaces are tan and beige and water is black. The pinkish-white patches are clouds.
Source: Jacques Descloitres, MODIS Land Rapid Response Team, NASA/GSFC

Por Carlos Solís
Bioko (Fernando Poo) Topographic Map, Equatorial Guinea

Fernando Poo (Bioko Island), Topographic Map Portion of Libreville sheet, Series 1301, Sheet NA 32. Original Scale 1:1,000,000. U.S. Army Map Service, Corps of Engineers, 1963.
Source: U.S. Army Map Service

Por Carlos Solís
Island of Hawaii

These images of the Island of Hawaii were acquired on March 19, 2000 by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASAs Terra satellite. With its 14 spectral bands from the visible to the thermal infrared wavelength region, and its high spatial resolution of 15 to 90meters (about 50 to 300 feet), ASTER will image Earth for the next 6 years to map and monitor the changing surface of our planet. Data are shown from the short wavelength and thermal infrared spectral regions, illustrating how different and complementary information is contained in different parts of the spectrum. Left image: This false-color image covers an area 60 kilometers (37 miles) wide and 120 kilometers (75 miles) long in three bands of the short wavelength infrared region. While ,much of the island was covered in clouds, the dominant central Mauna Loa volcano, rising to an altitude of 4115 meters (13,500 feet), is cloud-free. Lava flows can be seen radiating from the central crater in green and black tones. As they reach lower elevations, the flows become covered with vegetation, and their image color changes to yellow and orange. Mauna Kea volcano to the north of Mauna Loa has a thin cloud-cover, producing a bluish tone on the image. The ocean in the lower right appears brown due to the color processing. Right image: This image is a false-color composite of three thermal infrared bands. The brightness of the colors is proportional to the temperature, and the hues display differences in rock composition. Clouds are black, because they are the coldest objects in the scene. The ocean and thick vegetation appear dark green because they are colder than bare rock surfaces, and have no thermal spectral features. Lava flows are shades of magenta, green, pink and yellow, reflecting chemical changes due to weathering and relative age differences. Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) is one of five Earth-observing instruments launched December 18, 1999, on NASAs Terra satellite. The instrument was built by Japans Ministry of International Trade and Industry. A joint U.S./Japan science team is responsible for validation and calibration of the instrument and the data products. Dr. Anne Kahle at NASAs Jet Propulsion Laboratory, Pasadena, California, is the U.S. Science team leader; Moshe Pniel of JPLis the project manager. ASTER is the only high resolution imaging sensor on Terra. The primary goal of the ASTER mission is to obtain high-resolution image data in 14 channels over the entire land surface, as well as black and white stereo images. With revisit time of between 4 and 16 days, ASTER will provide the capability for repeat coverage of changing areas on Earths surface. The broad spectral coverage and high spectral resolution of ASTER will provide scientists in numerous disciplines with critical information for surface mapping, and monitoring dynamic conditions and temporal change. Example applications are: monitoring glacial advances and retreats; monitoring potentially active volcanoes; identifying crop stress; determining cloud morphology and physical properties; wetlands evaluation; thermal pollution monitoring; coral reef degradation; surface temperature mapping of soils and geology; and measuring surface heat balance.
Source: Image courtesy NASA/GSFC/MITI/ERSDAC/JAROS, and U.S./Japan ASTER Science Team

Por Carlos Solís