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WAVeTrends: Trends in Woody and Herbaceous Vegetation

Submitted by ORNL DAAC Staff on 2020-05-18
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Concurrent woody and herbaceous vegetation changes between the 1982-1991 and 2004-2013 decades of the Sudano-Sahel region of Africa. (A) Map of vegetation change categories. (B) Chart showing the conceptual position and the relative abundance of each category in a 2-D space.

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Vegetation change data spanning the West African Sudano-Sahel region is now available.

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.

Soil Moisture and Tree Measurements at Harvard Forest

Submitted by ORNL DAAC Staff on 2019-11-04
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Upward-facing photo of the canopy at Harvard Forest (transect 2, plot 57) on 2012-10-18.

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Ground-based data collected at the Harvard Forest site was used to validate Airborne Microwave Observatory of Subcanopy and Subsurface (AirMOSS) soil moisture estimates.

Global Solar-Induced Chlorophyll Fluorescence (SIF)

Submitted by ORNL DAAC Staff on 2019-09-10
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Predicted spatially contiguous solar-induced chlorophyll fluorescence (SIF) across the United States for August 1 - 16, 2015. Areas of high SIF are in red, and areas of low SIF are in blue. Agricultural areas, like the U.S. Midwestern corn belt, often have a high rate of photosynthetic production which results in high SIF.

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High-resolution, global, estimates of SIF based on data from the OCO-2 satellite serve as a proxy for rates of terrestrial photosynthesis.

PhenoCam Data Updated

Submitted by ORNL DAAC Staff on 2019-09-09
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Spatial distribution of PhenoCam data across ecological regions of North America. Background map illustrates USA Environmental Protection Agency Level I Ecoregions. Data counts have been aggregated to a spatial resolution of 4i, and the size of each circle corresponds to the number of years of data.

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A new version of the PhenoCam vegetation phenology data products is now available.

Vegetation and Carbon Impacts of Boreal Wildfires

Submitted by ORNL DAAC Staff on 2019-09-03
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Investigators collected field data and inventoried plots for vegetation species and growth in 2018 at a post-burn site. (Image Credit: Laura Bourgeau-Chavez)

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A new dataset completes four years of post-fire vegetation sampling at burned sites in Canada's Northwest Territories.