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On Thursday, June 4th, All ORNL DAAC systems will be offline for scheduled hardware maintenance from 7am-12pm EDT.

On Thursday, May 21st, from 7 am-12 pm EDT all ORNL DAAC systems will be offline for hardware updates.

Keep up with the latest carbon dioxide concentrations for our atmosphere: Jan. 2020 reading was 413 ppm. @NASAClimate has graphs & #data to download! The #ORNLDAAC also offers a variety of carbon cycle datasets:

#ICYMI: The Vista-CA dataset from the North American Carbon Program .@NACP_Carbon provides locations of potential #methane (CH4) emitting facilities & infrastructure across the state of California. Used to support the California Methane Survey project.

What's the difference between #MODIS & #VIIRS? VIIRS is younger, different spatial resolutions & spectral coverage, no orbital gaps, will eventually replace MODIS. Image compares #wildfire #data from the two instruments:

Plants are important to the global #carbon cycle! 🌲s absorb CO2 during photosynthesis, store C above/below ground, produce O2. The #ORNLDAAC has >700 data holdings on forest structure/cover/biogeochemistry. Find one that's applicable to your research:

RT @NASAEarth: Satellite Observations Aid Bison Management #NASA.

#New dataset: Temporally consistent & harmonized global maps of above- & belowground biomass carbon density are available! #Data are for the year 2010 at a 300 m spatial resolution. The accumulated uncertainty of pixel-level estimates are also provided.

Christine Laney (@cmlaney), Isaac Larsen (, Alexey Shiklomanov (@ashiklom711), & Ying Sun (@gisgter2008) will join the ORNL DAAC User Working Group this year! Welcome, new members! #biogeochemistry #ecology #DataScience

RT @NASAEarth: 🌎🗓 T-43 days until #EarthDay50 .From space, @NASA can track damage to roads and homes after hurricanes, helping first respon….

Get the catalog of point cloud #data collected during #LiDAR surveys over the #Amazon #rainforest in #Brazil from 2008-2018 for the Sustainable Landscapes Brazil Project. Data made available by the Carbon Monitoring System @NASA_Carbon!

RT @NASAGoddard: Beautiful 🌏. On April 22, the world will celebrate the 50th anniversary of #EarthDay. Follow @NASAEarth for its 50-day t….

We love #OpenData! "Open science can lead to greater collaboration, increased confidence in findings & goodwill between researchers." We assign all data products a DOI, making them easier to cite & discoverable. DOI Search:

RT @NASAEarth: Dr. Liz Hoy studies Earth’s Arctic ❄️ and boreal regions, looking at how fires 🔥 affect carbon storage in a warming climate.….

#ICYMI: @NASA_ABoVE dataset "ABoVE: Surface Water Extent, Boreal and Tundra Regions, North America, 1991-2011" has been cited 4 times & downloaded >800 times! Data were derived from time series of #Landsat TM & ETM+

#DYK that there are other DAACs out there besides @ORNLDAAC? We all serve the @NASAEarth Observing System to ensure that #data collected during #science missions is easily accessible. Do you want to use our data? Find out more and follow @NASAEarthData

Get these #data from Arctic-Boreal Vulnerability Experiment .@NASA_ABoVE: A time series of Landsat-derived maps shows the expansion of a thaw slump on the East Fork Chandalar River in #Alaska from 2008-2017.

RT @NASAEarth: You can help us choose our all-time best image. Post your suggestions here by March 17: #NASA #NASAE….

Ever wondered, "what's the greenhouse effect?" See this simplified animation from @NASAClimate: Even download the animation for presentations! The #ORNLDAAC provides access to #climate & #carbon cycle data.