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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.

Soil Organic Carbon in Tidal Wetlands

Estuary Classes

Estuaries classes used in the study: former river valley primary estuary, former glacier valley primary estuary, river delta primary estuary, tectonic structural primary estuary, coastal lagoon secondary estuary, and unclassified estuary.

Soil organic carbon (SOC) estimates and environmental data for US estuaries are available for the period 1972-2015.

Soil Moisture and Tree Measurements at Harvard Forest

Harvard Forest Canopy

Upward-facing photo of the canopy at Harvard Forest (transect 2, plot 57) on 2012-10-18.

Ground-based data collected at the Harvard Forest site was used to validate Airborne Microwave Observatory of Subcanopy and Subsurface (AirMOSS) soil moisture estimates.

Subsistence Use Areas in Alaska

Subsistence Resource Use Areas

Combined map of subsistence resource use areas of Interior Alaskan communities with (1) points marking harvest effort locations, (2) polygons indicating harvest effort areas, and (3) lines indicating linear harvesting activity.

Maps of the search and harvest areas used by residents of Interior Alaska are available.

Greenhouse Gas Concentrations for Six US Cities

Carbon dioxide concentrations.

Carbon dioxide concentrations at the MUR site in Salt Lake City, Utah, show a pronounced seasonal pattern of higher CO2 in the winter months.

Hourly urban greenhouse gas measurements are available for cities in the CO2 Urban Synthesis and Analysis (CO2-USA) Data Synthesis Network.

Properties of Tropical Aerosols

NASA DC-8 Aircraft.

The NASA DC-8 aircraft was used for the ATom missions.

Aerosol data collected during Atmospheric Tomography Mission (ATom) will inform on new particle formation occurrence in the tropics.

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