DAAC Home > Resources > News

News

Soil Organic Carbon Distributions in Tidal Wetlands for the NE US

Submitted by ORNL DAAC Staff on 2022-02-04
Image Media
Image Media
Caption

Predicted soil organic carbon (SOC) content of wetlands at 0-5 cm depth in the vicinity of Cape Cod, Massachusetts, U.S. Estimates represent the period 1998-2018 and were derived from publicly available data sources using a quantile regression forest model. 

Body
Estimates of soil organic carbon (SOC) in tidal wetlands for the northeastern United States.
Tags

ABoVE: The Arctic-Boreal CO2 fluxes (ABCflux) Database, 1989-2020

Submitted by ORNL DAAC Staff on 2022-01-24
Image Media
Image Media
Caption

The flux site distribution in syntheses focused on compiling fluxes from high latitudes (McGuire et al. 2012, Belshe et al. 2013, Natali et al. 2019, Virkkala et al. 2021 and this study (ABCflux)). The Arctic-Boreal Zone is highlighted in dark grey; countries are shown in the background. Based on the unique latitude-longitude coordinate combinations in the tundra, there were 136 tundra sites in ABCflux, 104 tundra sites in Virkkala et al. 2021, 68 tundra sites in Natali et al., 2019, 34 tundra sites in Belshe et al. 2013, and 66 tundra sites in McGuire et al., 2012. Observations that were included in previous studies but not in ABCflux represent fluxes aggregated over seasonal, not monthly periods.

Body
This Arctic-Boreal CO2 fluxes (ABCflux) dataset contains monthly aggregates of terrestrial net ecosystem CO2 exchange and its derived partitioned component fluxes.
Tags

GEDI L4A Footprint-level Aboveground Biomass Density, V2

Submitted by ORNL DAAC Staff on 2022-01-16
Image Media
Image Media
Caption

Example subset of aboveground biomass density (AGBD; Mg ha-1) predictions from the GEDI Level-4A footprint product over Northern California, U.S., spanning April to July 2019. GEDI footprints are spaced 60m along-track and 600m across-track.

Body
GEDI L4A Version 2 predictions of aboveground biomass density and estimates of the prediction standard error within each sampled geolocated laser footprint now available.

GEDI L3 Gridded Land Surface Metrics, V2

Submitted by ORNL DAAC Staff on 2022-01-14
Image Media
Image Media
Caption

Level 3 estimated canopy height in meters derived from the Level 2 profile metric RH100 between the 19th and the 122nd mission week.

Body
GEDI L3 gridded mean canopy height, standard deviation of canopy height, mean ground elevation, standard deviation of ground elevation, and counts of laser footprints per 1 km x 1 km grid cells globally within -52 and 52 degrees latitude.
Tags