DAAC Home > Resources > News

News

CMS

Soil Organic Carbon Estimates for Mexico

Submitted by ORNL DAAC Staff on 2020-03-30
Image Media
Image Media
Caption

(A) Digital map of soil organic carbon (kg/m2) at 1 m depth and 90 m spatial resolution. The black and blue colored areas are urban areas and water bodies. (B) An area in northern Mexico illustrating the level of detail achieved by mapping across 90 m grids.

Body

Estimates of soil organic carbon are now available from Mexico at a 90 meter resolution.

Historical and Future Leaching from the Mississippi River Basin

Submitted by ORNL DAAC Staff on 2020-01-20
Image Media
Image Media
Caption

Spatial distribution of mean dissolved inorganic carbon (DIC) leaching (g c/m2/yr) in the 2090s estimated by S(ALL) simulation experiment (including future climate, elevated CO2, and land use changes). Climate change scenarios were derived from three climate models named CCSM3 (panels a and b), ECHAM (c and d), and CCCMA (e and f) under high (A2) and low (B1) emission scenarios, respectively.

Body

New data from the Carbon Monitoring System (CMS) offers insights into how environmental factors affect the dynamics of leaching.

Predicted Annual Soil Respiration from the Carbon Monitoring System

Submitted by ORNL DAAC Staff on 2020-01-13
Image Media
Image Media
Caption

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.

Body

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
Image Media
Image Media
Caption

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.

Body

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
Image Media
Image Media
Caption

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).

Body

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
Image Media
Image Media
Caption

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.

Body

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
Image Media
Image Media
Caption

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).

Body

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
Image Media
Image Media
Caption

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.

Body

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