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Published byBonnie Cooper Modified over 9 years ago
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Jasmine Nahorniak Oregon State University
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What is Direct Broadcast? NASA Data streamed in real-time from the satellite to the earth as soon as the data are collected. What is Direct Readout? Data collected by a satellite dish in real-time from a satellite travelling overhead.
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Ocean sensors with direct broadcast MODIS VIIRS AVHRR OCM-2 POLDER 3 COCTS CZI MERSI MVISR VIRR NASA image
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http://directreadout.sci.gsfc.nasa.gov/?id=dspContent&cid=78 Worldwide Direct Readout Sites Image from the NASA Direct Readout website
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North American Direct Readout Sites http://directreadout.sci.gsfc.nasa.gov/?id=dspContent&cid=78 Image from the NASA Direct Readout website
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Oregon State University Direct Broadcast Station
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Station Coverage Aqua MODIS May 24 2013 1:52 pm 12:17 pm 3:30 pm
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Terra MODIS May 24 2013 12:08 pm 10:32 am 1:47 pm
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How is this different from “normal” data? NASA image NASA Aqua Example Aqua circles the earth 14 times a day. Data for an entire orbit is stored on the satellite and then dumped down to two main ground stations as the satellite passes over them: Poker Flat, Alaska Svalbard, Norway An entire orbit of data is then sent to NASA for processing. These data are not available in real-time.
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Direct BroadcastNormal Timeliness Accuracy No cost Global coverage Mapped, L3 data Data archive Standard products Why use direct broadcast data?
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pollution monitors oil spill cleanup research vessels search and rescue natural disaster monitoring fisheries and aquaculture? Who needs ocean direct broadcast data?
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For more information.... International Direct Readout Ocean Steering Committee Jasmine Nahorniak (OSU), Ricardo Letelier (OSU), Frank Muller-Karger (USF), Ichio Asanuma (TUIS, Japan), Edward King (CSIRO, Australia), Marcelo Colazo (CONAE, Argentina) e-mail: IDROSC@coas.oregonstate.eduIDROSC@coas.oregonstate.edu Community Website oceandirectreadout.org OSU Direct Broadcast Station MODIS (SeaDAS): http://sugar.coas.oregonstate.edu/MODIS/http://sugar.coas.oregonstate.edu/MODIS/ MODIS (IPOPP): http://sugar.coas.oregonstate.edu/MODIS/IPOPP/http://sugar.coas.oregonstate.edu/MODIS/IPOPP/
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support for direct broadcast data NASA Direct Readout Laboratory (DRL) http://directreadout.sci.gsfc.nasa.gov/ http://directreadout.sci.gsfc.nasa.gov/ Patrick Coronado, Kelvin Brentzel a voice for the direct readout community source of information develop software for direct readout data processing e.g. IPOPP: International Polar Orbiter Processing Package The NASA DRL is seeking input from end-users of ocean satellite data to determine possible future directions.
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MODIS AQUA May 31, 2013 collected at OSU Do you currently use direct broadcast data? How is direct broadcast data useful to your field? Can it be improved? Discussion: Direct Broadcast
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