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Knowledgebase : ORNL DAAC

Available for most of the Daymet variables. They can be downloaded from the ftp site: ftp://nacp.ornl.gov/synthesis/2008/firenze/daymet/daymet_monthlyclimate_allyrs/ [1] Links: ------ [1] http://support.earthdata.nasa.gov/ftp://nacp.ornl.gov/synthesis/20...
Each year's Daymet data is gathered separately. Stations are fairly stable but can come and go. Some stations are dropped from processing if they don't meet certain criteria. The station source has also changed through the years of Daymet processing as...
WHAT DOES THE ORNL DAAC REQUIRE FROM A PROVIDER BEFORE IT CAN ARCHIVE AND DISTRIBUTE DATA? A: We have prepared guidance on information management practices that can be found on this web page: http://daac.ornl.gov/PI/pi_info.html. The page gives all ...
FIELD CAMPAIGNS Field Campaigns combine ground-, aircraft-, and satellite-based measurements of biogeochemical features in specific ecosystems over multi-year time periods. These studies focus on a particular issue or set of issues and are critical to...
Why is there a delay when emailing to the Fluxnet group? [http://fluxnet.ornl.gov/node/1391] The Fluxnet mailing list (fluxnet@lists.ornl.gov) is a moderated list, meaning staff members look at all incoming emails to verify their authenticity before sen...
The daily data is available in a couple of formats. You can get the gridded data, by variable, in netCDF file format by downloading either individual tiles of the data or downloading the entire spatial extent from our ftp site. If you want to subset the m...
The Daymet calendar is based on a standard calendar year. All Daymet years have 1 - 365 days, including leap years. For leap years, the Daymet database includes leap day. Values for December 31 are discarded from leap years to maintain a 365-day year. ...
The MODIS Global subsetting and visualization tool provides customized subsets and visualizations of 14 MODIS Collection 5 land products on demand for any land area on Earth, from 250-m to 1-km resolution. Subset products are made available to the user...
HOW TO CITE SDAT DATA SETS AND GRANULES: 1. On the SDAT dataset lister page (i.e., http://webmap.ornl.gov/wcsdown/dataset.jsp?ds_id=####), select "View Full Metadata". This links to a mercury search results page for that data set. From there, the user c...
[Canned response]: Thank you for your interest in the ORNL DAAC. All of our data is free and open to the public, with a registered account. Registration is free and can be set up at: https://urs.earthdata.nasa.gov/users/new?client_id=YQOhivHfMTau88rjbMO...
LAND VALIDATION CAMPAIGNS The goal of the EOS Validation Program is the comprehensive assessment of all EOS science data products. ORNL DAAC supports these assessments by compiling data such as leaf area index (LAI), and net primary productivity (NPP)...
MODEL ARCHIVE The Model Archive provides the methodological detail in numerical modeling studies needed to ensure the long-term reproducibility of experimental results. Because numerical models evolve continuously over time, the most complete descript...
ABOUT THE ORNL DAAC WHAT IS THE ORNL DAAC? The Oak Ridge National Laboratory (ORNL) Distributed Active Archive Center (DAAC) for biogeochemical dynamics is one of the NASA Earth Observing System Data and Information System (EOSDIS [https://earthdata.nas...
BIOGEOCHEMICAL DYNAMICS DATA Regional and global biogeochemical dynamics data can be used to improve our understanding of the structure and function of various ecosystems; to enable prediction across spatial and temporal scales; and to parameterize an...
Although rare, some users report that they cannot access their order by using the FTP link in their order confirmation email. This issue is frequently due to 1 of 2 scenarios: 1) The user is behind a network firewall that prevents them from accessing ...
[Note: This is a draft document on standards for communications between ORNL DAAC staff and users.] Suggested opening to user inquiries: "Hello [Name]. Thank you for your interest in the ORNL DAAC products and services." Suggested closing: ...
The powerful MODIS subsetting tool allows users to access 14 different products from NASA's Terra and Aqua satellites for any site in the world from the year 2000 to the present. The ORNL DAAC offers a free MODIS subsetting tool that enables users t...
Our processing work flow allows us to process Daymet data only after a full year of input data is available. We usually wait between 45 and 60 days to download available input surface observations as the data at that point is "archive quality". This means...
This information can be found in the "Data Guides" section at the top of this page:https://daymet.ornl.gov/datasupport.html [https://daymet.ornl.gov/datasupport.html]. Depending on how you are accessing Daymet data, you will find it in all three guides; ...