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Predicted Annual Soil Respiration from the Carbon Monitoring System

Submitted by ORNL DAAC Staff on 2020-01-13
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A global map of predicted annual soil respiration (Rs) at 1 km spatial resolution created by applying the QRF model to gridded covariates. Right is a plot of the latitudinal mean predicted annual Rs.

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A machine learning approach was used to derive the predicted annual soil respiration and uncertainty at a 1 km spatial resolution.

Amazonia Forest Canopy Structure from LiDAR

Submitted by ORNL DAAC Staff on 2020-01-06
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Bounding boxes for LiDAR tiles from surveys over western Para, Brazil, are depicted in Google Earth from the KMZ companion file. Each feature in the KMZ provides key metadata about the corresponding tile.

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LiDAR surveys over forest research sites across the Amazon rainforest in Brazil are available.

Carbon Fluxes From US Coastal Wetlands

Submitted by ORNL DAAC Staff on 2019-12-30
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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).

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A new dataset provides maps of surface elevation, land cover, biomass, and estimated coastal wetland carbon fluxes.

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.

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.

Tracking Fires in Central Kalimantan, Indonesia

Submitted by ORNL DAAC Staff on 2019-10-02
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The area burned in 1997 and 1998 in the Mawas area, Central Kalimantan, Indonesia is shown in pink. The inset with white dot shows the location of Mawas study site on the Island of Borneo.

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Maps of annual burned area from 1997 to 2015 show the extent of fires in the Mawas region of Central Kalimantan.

Forest Carbon Stocks and Fluxes for Southeastern US

Submitted by ORNL DAAC Staff on 2019-09-16
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Maps of the number of years since the most recent disturbance, aboveground biomass, and net ecosystem productivity in the year 2010, for forests of the Southeastern USA.

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A new Carbon Monitoring System dataset used a carbon cycle process model and historic data to estimate aboveground woody biomass and net ecosystem productivity over time.