DAAC Home > Resources > News

News

High-Quality Forest Inventory Data for Gabon, Africa

Submitted by welchjn@ornl.gov on
Image Media
Image Media
Caption

Gridded Land, Vegetation, and Ice Sensor (LVIS) instrument data products at 25 m spatial resolution over the Mondah Forest (left) and Mabounie (right) sites in Gabon.

Body

NASA's airborne Land, Vegetation, and Ice Sensor (LVIS) instrument was used to collect inventory data for Gabon's forests.

Chlorophyll Fluorescence and Modeled Irradiance of Evergreen Needles

Submitted by welchjn@ornl.gov on
Image Media
Image Media
Caption

Relationship between the quantum yields of fluorescence (Ft) and photosystem II (Fv/Fm) sampled Picea glauca needles in Alaska (A) and Abies grandis needles in Idaho (B). Modeled (A) and observed (B) irradiance is indicated by the coloration of points; grey points in individual sampling period panels show observations from all periods for reference. Plots of sampling periods aligned with the timing of satellite overpasses are outlined in green (A) and blue (B) boxes, respectively.

Body

In situ measurements of needle-level chlorophyll fluorescence and other irradiance products are now available.