Measurements of atmospheric acetone concentration from samples collected by the Trace Organic Gas Analyzer (TOGA) during ATom-3 flights in 2017.
Concentrations of volatile organic compounds (VOCs), measured by the Trace Organic Gas Analyzer (TOGA), are available.
Summary statistics for the snowoff date from 1988-2016 across the study domain: mean (left), standard deviation (middle), and coefficient of variation (right).
Snowoff dates, detected by passive microwave, are available across Alaska, northwestern Canada, and the Russian Far East.
Estimated CO2e fluxes and confidence interval ranges for the Mississippi River outlet in Louisiana, United States. This area contains palustrine and estuarine wetlands, and includes stable wetlands, wetland gains and loss events from 2006 to 2011. A: Total flux from 2006 to 2011. B. Uncertainty, as represented by confidence interval range (0.975 - 0.025 quantile distributions of the results of the Monte Carlo Analysis). C-E. The relative contributions of soil, biomass, and methane to the total flux (A).
A new dataset provides maps of surface elevation, land cover, biomass, and estimated coastal wetland carbon fluxes.
Vista-CA provides locations of methane (CH4) emitting facilities and infrastructure in the State of California. In this figure, the distribution of digesters, feed lots, and dairies across the San Francisco Bay Area and Central Valley are shown.
The Vista-CA dataset provides locations of potential methane (CH4) emitting facilities and infrastructure across the state of California.
Annual expansion of a thaw slump on the East Fork Chandalar River near the community of Venetie, Alaska, from 2008 through 2017. The erosion time series was created by digitizing data from ESRI base maps and Landsat 5, 7, and 8 images. The eroded area appears to be growing steadily, mostly to the east, with apparent limitation on growth to the north and south.
A time series of Landsat-derived maps shows the expansion of a thaw slump in Alaska.
Measurements of atmospheric carbon dioxide concentration from flasks collected by the Medusa system during ATom-4 flights in 2018.
NASA's Atmospheric Tomography (ATom) campaign collected whole air samples and measurements of formaldehyde during round-the-world flights.
Solar-Induced Fluorescence derived along ERS-2 GOME orbital tracks on 1 July 1995.
Global estimates of solar-induced fluorescence (SIF) of chlorophyll from 1995 to 2003 are now available.
See you at AGU, December 9-13 in San Francisco.
Several ORNL DAAC staff members will be attending the American Geophysical Union Meeting December 9-13, 2019, in San Fransisco, CA.
Simulated and observed seasonal patterns of canopy SIF (740 nm) for (a, c) absolute SIF and (b, d) normalized canopy SIF for CLM simulation year 2010. Both a satellite SIF product (GOME-2) and the PhotoSpec measurements are included for comparison.
Three related datasets from the Carbon Monitoring System (CMS) program describe year-round photosynthetic activity in a conifer forest.
Example cross-sections of CO2, O2, and APO (O2 + 1.1 * CO2) measured by AO2 (interpolated flight track data) and the Medusa flask sampler (filled circles) during the Pacific southbound flights of ATom-4 in April and May 2018.
Data collected by the Airborne Oxygen Instrument (AO2) during the Atmospheric Tomography (ATom) airborne campaigns are now available.
