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NASA Earthdata Webinar on Site-based Visualization Tools and Services Available

Submitted by ORNL DAAC Staff on 2023-05-01
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GEDI Beam 101 shot number 24610500300213454 illustrating aboveground biomass.

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If you missed our recent Webinar on subsetting remote sensing data, a new ORNL DAAC Learning Resource provides access at your convenience.

Lake & Pond Extents in Alaska, 2019-2021

Submitted by ORNL DAAC Staff on 2023-04-14
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Four subregions of Alaska (left) with example of lakes and ponds derived from PlanetScope imagery (right). Lake and pond extents include monthly climatological composites (May - September) and 3-year composites for 2019-2021. The inset for the Fairbanks (FB) region shows a close-up of the water extents overlain on sub-meter Esri base map imagery. The Yukon Flats (YF) inset shows variability in surface area of large lakes. The Delta Junction (DJ) inset shows seasonal changes in the area of small ponds. The Yukon-Kuskokwim Delta (YKD) inset shows the spatial variability of water body areas in this region and is an example of a 3-year composite.

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Polygon spatial files of lake and pond extents for three sub-regions of Interior Alaska's boreal forest, and one tundra region located in Alaska's Yukon-Kuskokwim Delta.
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ASCENDS: Airborne CO2 LAS Retrieval, Indianapolis, IN, USA, 2014

Submitted by ORNL DAAC Staff on 2023-04-14
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CO2 Sounder instrument photographs. a) The aircraft rack with the new seed laser subsystem. b) The aircraft racks containing the laser power amplifiers and the lidar's detector subsystem. c) The lidar's transmitter and receiver telescope assembly, which is positioned over the nadir window assembly in the aircraft fuselage. The optical pulses from the fiber amplifiers, and the received optical signals are coupled via fiber optics. d) The instrument operator's console, with the control computer screens folded away (Abshire et al., 2018).

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In situ airborne measurements of atmospheric carbon dioxide (CO2) over Indianapolis, Indiana (IN) on September 3, 2014 during the morning commuter period with heavy traffic emissions.

Fire Particulate Emissions for Indonesia, 2015-2020

Submitted by ORNL DAAC Staff on 2023-03-24
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Spatial patterns of the (a) mean annual total particulate matter (TPM) from fire emissions during fire seasons from 2015 to 2020 and (b) TPM from fire emissions in October 2015 across Indonesia. Areas marked with green lines represent peatland areas. Source: Lu et al. (2022).

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10-minute fire emissions within 0.1-degree regularly spaced intervals across Indonesia from July 2015 to December 2020.
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Global-Gridded Daily Methane Emissions Climatology, 2003-2015

Submitted by ORNL DAAC Staff on 2023-03-24
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a) Lake area density (fraction of cell area) and b) ecoclimatic lake type classification. White space indicates cells with no lakes present.

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Global gridded information on lake surface area and open water CH4 emissions for an annual climatology representative of the average conditions from 2003 to 2015.

AVIRIS-NG L3-Derived Aboveground Biomass, MRD, Louisiana, USA, 2021, V2

Submitted by ORNL DAAC Staff on 2023-03-24
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Herbaceous aboveground biomass (megagrams/hectare) product for the Atchafalaya and Terrebonne Basins derived from AVIRIS-NG data collected during the April and August 2021 campaigns.

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Estimates of herbaceous AGB for the Atchafalaya & Terrebonne basins of the Mississippi River Delta in LA, USA, for the fall & spring seasons of 2021.