MODIS - Terra
2 天之前 · With its sweeping 2,330-km-wide viewing swath, MODIS sees every point on our world every 1-2 days in 36 discrete spectral bands. Consequently, MODIS tracks a wider array of the earth’s vital signs than any other Terra sensor. For instance, the sensor measures the percent of the planet’s surface that is covered by clouds almost every day.
Carbon Cycle and Ecosystems - Terra
2 天之前 · Carbon is a fundamental part of the Earth system. It is one of the primary building blocks of all organic matter on Earth and a key element in setting Earth’s temperature. Carbon moves from the atmosphere to the land, ocean, and life through biological, chemical, geological and physical processes in a cycle called the carbon cycle.
Terra | The EOS Flagship
2010年12月18日 · For 20 years, Terra, the flagship Earth observing satellite, has chronicled changes on Earth. Designed and built in the 1980s and 90s, NASA and Lockheed Martin engineers set out to build a satellite that could take simultaneous measurements of Earth’s atmosphere, land, and water. Its mission – to understand how Earth is changing and to ...
Water & Energy Cycle | Terra
4 天之前 · The movement of water from the ocean to the atmosphere to the land and back to the ocean—the water cycle —is fueled by energy from the Sun. Changes in the energy cycle will ripple into the water cycle. As greenhouses gases retain more energy in the Earth system, the extra energy enhances the water cycle. An enhanced water cycle means more ...
ASTER Digital Elevation Model Version 3 Released | Terra
Between the most northern islands of Greenland and the interior of Antarctica, elevation data from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Digital Elevation Model (GDEM) Version 3 can be accessed for free. The data is downloadable from Japan Space Systems and from NASA’s Land Processes Distributed ...
ASTER Data | Terra
3 天之前 · The following products are available to all users at no cost: ASTER L1T data (day only), Landsat products, EO-1 data, Sentinel-2 data, Orbview-3 data, and DOQs. ASTER/AIST – You can search the entire ASTER data archive using a browse-based map interface. Order:1) pseudocolor natural color image as WMS/KML; 2) Level 3 orthorectified bands 1-14 ...
Climate Variability and Change - Terra
6 天之前 · Climate Variability and Change. Climate is the sum of weather over time, the average temperatures and rainfall of a place. Earth’s climate—how hot our planet is on average—is set by the Sun. Anything that changes the amount of solar energy that enters the Earth system will change the temperature. By burning fossil fuels, people are ...
Earth’s Surface & Interior | Terra
3 天之前 · The Earth’s surface plays a critical role in the Earth system by interacting with the ocean and the atmosphere. To understand the Earth system, scientists must observe how the Earth’s surface changes as a result of interactions between the atmosphere and ocean (coastal erosion, landslides) and how tectonics and volcanism impact the atmosphere and ocean.
ASTER | Terra
The Advanced Spaceborne Thermal Emission and Reflection Radiometer obtains high-resolution (15 to 90 square meters per pixel) images of the Earth in 14 different wavelengths of the electromagnetic spectrum, ranging from visible to thermal infrared light. Scientists use ASTER data to create detailed maps of land surface temperature, emissivity ...
MODIS Data - Terra
3 天之前 · The MODIS instrument is operating on both the Terra and Aqua spacecraft. It has a viewing swath width of 2,330 km and views the entire surface of the Earth every one to two days. Its detectors measure 36 spectral bands between 0.405 and 14.385 µm, and it acquires data at three spatial resolutions — 250m, 500m, and 1,000m.