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ORNL DAAC Hopes to See You at AGU

AGU 100 Advancing Earth and Space Science

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.

Daymet Developer Among Web of Science's Most Highly Cited

Dr. Peter Thornton in the field for NGEE Arctic

Dr. Peter Thornton leads the Modeling and Scale Integration Science Team for the Next-Generation Ecosystem Experiments (NGEE) Arctic project.

The lead developer of Daymet is recognized as a highly cited author in 2019.

Atmospheric Oxygen and CO2 Concentrations

AO2 Measurements

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.

Seasonality of Photosynthetic Performance

SIF for CLM Simulation Year 2010

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.

Pre-Fire Ecosystem Classifications in Burned Area

Great Slave Lake

Ecosystem map for the Great Slave Lake area, Northwest Territories, Canada, for the period 1997-2011.

ABoVE researchers compiled a map of ecosystem states prior to the 2014 & 2015 fires in the Northwest Territories, Canada.

High-resolution Biomass for Northwestern Forests

Aboveground Biomass

Forest aboveground biomass in megagrams per hectare for the year 2016.

Annual maps of aboveground biomass are available for forests in Washington, Oregon, Idaho, and western Montana, USA.

Methane Point-Source Emissions

 AVIRIS-NG Flight Lines

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).

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

Tracking Permafrost with P-band SAR

AirMOSS Radar Swaths

AirMOSS radar swaths flown in 2014 and 2015 in Alaska. In situ soil moisture and temperature profile measurements were obtained at the CALM (Circumpolar Active Layer Monitoring) and the UAF GIPL (Geophysical Institute Permafrost Laboratory, University of Alaska Fairbanks) sites and used to validate AirMOSS data products.

Airborne Microwave Observatory of Subcanopy and Subsurface (AirMOSS) radar data from Alaska are used to derive estimates of active layer thickness. Data from flights in 2014 and 2015 are now available.

SMAP NEE Data for Research Sites

Fixed Sites Subsetting and Visualization Tool

The Fixed Sites Subsets Tool provides customized, pre-processed, subsets and visualizations of land products for selected field and flux tower sites around the world.

The Fixed Sites Subsets Tool now provides pre-processed subsets of SMAP Net Ecosystem Exchange data, in addition to many VIIRS and MODIS products, at research sites around the world.

Long-term Climate Normals for Alaska

Annual Average Maximum Temperature for Alaska

30-year annual average maximum temperature for Alaska at 60-m resolution for (a) the last glacial maximum period ~18,000 years ago and (b) the modern period 1975-2005.

A new dataset provides 30-year climate 'normals' for the last glacial maximum (~18,000 years ago) and the present day in Alaska.

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