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NASA Earthdata Article Highlights Methane Research

Submitted by ORNL DAAC Staff on 2021-06-29
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The AVIRIS-NG instrument detected large methane plumes coming from Sunshine Canyon Landfill during its October 2016 overpass. The plumes are shown in a yellow to red gradient, with red representing higher concentrations of methane. Image credit: Cusworth et al. 2020.

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NASA's AVIRIS-NG instrument detected multiple massive methane plumes in California and much more.

Updated Global Mangrove Distribution and Characteristics Dataset

Submitted by ORNL DAAC Staff on 2021-06-21
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Globally the tallest mangrove forests in coastal Gabon are estimated up to 63 m. The photo insets show locations where individual trees were measured in situ up to 65 m tall (Simard et al., 2019).

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An update to a dataset that characterizes the global distribution, biomass, and canopy height of mangrove-forested wetlands based on remotely sensed and field measurements.
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Forest Carbon as a Function of Last Disturbance for Conterminous USA

Submitted by ORNL DAAC Staff on 2021-06-21
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Estimated total ecosystem carbon for the northeast region of the U.S. for the years 1990 (left) and 2010 (right). The estimates were produced from an inventory-constrained version of the Carnegie-Ames-Stanford Approach (CASA) carbon cycle process model.

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This dataset provides estimates of forest carbon stocks and fluxes as a function of the number of years since the most recent disturbance for decadal benchmark years.
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SiB4 Global Terrestrial Carbon Cycle Modeled Outputs for 3 Time Steps

Submitted by ORNL DAAC Staff on 2021-06-13
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Overview of the Simple Biosphere Model (SiB4) that estimates carbon fluxes among the atmosphere, vegetation, and soils. Input information is shown in yellow boxes. These datasets include a selection of the output variables (blue boxes). Source: Haynes et al. (2020)

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Global terrestrial model outputs predicted by the Simple Biosphere Model, Version 4.2 (SiB4), at a 0.5-degree spatial resolution, 2000-2018.
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Predicted AGB Estimates for Six Selected US Tidal Marshes

Submitted by ORNL DAAC Staff on 2021-05-21
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An area of the Mississippi River Delta (Terrebonne and St. Mary Parishes, LA, USA) showing the largest present-day amount of tidal vegetation biomass in the conterminous US. (Source Louisiana_biomass_2015.tif).

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Aboveground tidal marsh biomass estimates for six estuarine regions of the conterminous United States.

Annual high-resolution estimates of Land Use and Cover from the Mawas research area, Indonesia

Submitted by ORNL DAAC Staff on 2021-05-21
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Land cover maps at 30 m resolution across Mawas, Central Kalimantan, Indonesia in 1994 (left) and 2004 (right).

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Annual land use/cover (LUC) maps at 30 m resolution across Mawas, Central Kalimantan, Indonesia.

Midwestern USA 2018 crop growing season Land Cover-Specific SIF

Submitted by ORNL DAAC Staff on 2021-04-19
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Examples of spatial patterns of reconstructed SIF at 4 km resolution. Only pixels with a fraction of the specific vegetation type larger than 0.1 are shown. For Total SIF, only pixels with a fraction of corn, soybean, grass/pasture, and forest larger than 0.8 are displayed.

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Estimated solar-induced chlorophyll fluorescence (SIF) of specific vegetation types and total SIF available at 4-km resolution.
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Annual Estimates of Global Riverine Nitrous Oxide Emissions

Submitted by ORNL DAAC Staff on 2021-03-24
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Riverine N2O emission estimates from headwater streams (a, c, and e) and high-order rivers (b, d, and f) for the 1900s, 1960s, and 2000s. The right panel shows the latitudinal distribution of riverine N2O emissions with the uncertainty range as the standard deviation (shaded areas).

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Modeled estimates of annual NO2 emissions for two sets of global rivers and streams covering years 1900-2016 available.