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Accessing MODIS Products via the EOS Data Gateway

The EOS Data Gateway serves as a centralized platform for accessing MODIS products from various Distributed Active Archive Centers (DAACs). Users can utilize diverse search parameters, including location, time period, sensor type, product, and quality. The interface allows saving customized queries for future use. Key functionalities include specifying data sets, geographic range, and date, ultimately yielding results identified by the granule ID. This organized system enhances the efficiency and ease of retrieving vital Earth observation data.

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Accessing MODIS Products via the EOS Data Gateway

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  1. Module 2: Ordering MODIS products

  2. The EOS Data Gateway(http://eos.nasa.gov/imswelcome) • Single point of entry for multiple Distributed Active Archive Centers (DAACs) • Data and documentation • Wide variety of search parameters • Location, Time period, Sensor, Product, Quality • Can save queries for later use • Good tutorial

  3. 1) Specify Data set

  4. 2)Specify geographic range

  5. 3)Specify date

  6. 4)Save parameters

  7. 5)Results of the search The actual file name

  8. Granule ID MOD13A1.A2000161.h18v04.002.2000203002556.hdf MODXXX.Ayyyyddd.hxxvxx.vvv.yyyydddhhmmss.hdf MODXXX = product and level of product A = Terra (formally known as EOS-AM1) yyyyddd = year and year day (001 – 366) for the start of the granule hxxvxx = MODIS land tile vvv = a three-digit version number assigned by ECS yyyydddhhmmss = 4 digit year, 3 digit day, hr, min, and sec of the time (UTC)at which the granule is processed.

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