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GEDI L4A Footprint-level Aboveground Biomass Density, V2

Submitted by ORNL DAAC Staff on 2022-01-16
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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.

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

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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.
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CPL-derived Atmospheric Boundary Layer Top Height

Submitted by ORNL DAAC Staff on 2022-01-09
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Top: Annotated time-height cross-section of aerosol backscatter profiles measured using CPL onboard C-130 aircraft on 2016-07-26. Wavelet-derived ABL top (black solid-circles) height overlaid. Middle: Secondary aerosol layers overlaid on the top panel. Bottom: Final attributed ABL top heights. 

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ABL top heights and the altitudes of the two additional aerosol layers derived from CPL measurements using the Haar wavelet transform method.

ATom: Actinic Flux & Chemical Species Photolysis Frequencies

Submitted by ORNL DAAC Staff on 2022-01-09
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CAFS derived total NO2 photolysis frequencies (jNO2) during ATom 1. The flight track (black line) is shown during nighttime operations when jNO2 is below detection limits.

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Actinic flux and photolysis frequencies for photodissociation reactions for a variety of chemical species during the four ATom campaigns.
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Delta-X: ADCP Channel Surveys, Coastal Louisiana, 2021

Submitted by ORNL DAAC Staff on 2021-12-28
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Locations of river discharge measurements (black triangles) in the Atchafalaya and Terrebonne Basins within the Mississippi River Delta (MRD) floodplain in coastal Louisiana, U.S. Measurements were taken by Delta-X project in March and April 2021.

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River discharge measurements collected at selected locations within the Mississippi River Delta floodplain.