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Seasonality of Photosynthetic Performance

Submitted by ORNL DAAC Staff on 2019-11-25
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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.

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Three related datasets from the Carbon Monitoring System (CMS) program describe year-round photosynthetic activity in a conifer forest.

Atmospheric Oxygen and CO2 Concentrations

Submitted by ORNL DAAC Staff on 2019-11-25
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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.

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Data collected by the Airborne Oxygen Instrument (AO2) during the Atmospheric Tomography (ATom) airborne campaigns are now available.

Methane Point-Source Emissions

Submitted by ORNL DAAC Staff on 2019-11-18
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Example of AVIRIS-NG flight lines over the southern San Joaquin Valley, Kern County, CA, in Fall 2016 and the Vista-CA potential methane emitting facilities and infrastructure for the three primary sectors (energy, agriculture, and waste).

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Maps of methane plumes were derived from Next-Generation Airborne Visible Infrared Imaging Spectrometer (AVIRIS-NG) flights over California.