MODIS (or Moderate Resolution Imaging Spectroradiometer) is a key instrument aboard the Terra and Aqua satellites. Terra’s orbit around the Earth is timed so that it passes from north to south across the equator in the morning, while Aqua passes south to north over the equator in the afternoon. Terra MODIS and Aqua MODIS are viewing the entire Earth’s surface every 1 to 2 days, acquiring data in 36 spectral bands, or groups of wavelengths.
Some of the most easily recognizable changes are occurring on land. Human-induced changes such as deforestation, urbanization, and hydroelectric and irrigation projects combine with the Earth’s existing cycles of fire, erosion, and floods to change our landscape. While we can often see these changes happening on a local scale, it is impossible to assess global effects through fieldwork alone. With its near-daily coverage of the Earth’s surface, MODIS provides comprehensive measurements that scientists and land managers need to make informed decisions about managing Earth’s natural resources from season to season, year to year, and decade to decade.
Climate Engine makes easy what used to take days and weeks to create, such as long term trends and anomalies in MODIS land surface temperature, vegetation vigor, snow cover, and burn indices to name a few.
Available MODIS datasets include Evapotranspiration (ET), Normalized Difference Index (NDVI), Enhanced Vegetation Index (EVI), Land Surface Temperature (LST), Normalized Difference Water Index (NDWI), Normalized Difference Index (NDSI), Burn Area Index (BAI), True Color, and False Color.
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