[ISO_Topic_Category='IMAGERY/BASE MAPS/EARTH COVER']
AIRMOSS - Duke Forest, NCEntry ID: airmoss_duke_forest_nc
Abstract: North American ecosystems are critical components of the global carbon cycle, exchanging large amounts of carbon dioxide and other gases with the atmosphere. Net ecosystem exchange (NEE) quantifies these carbon fluxes, but current continental-scale estimates contain high levels of uncertainty. Root-zone soil moisture (RZSM) and its spatial and temporal hetergeneity influence NEE and contribute as much as 60-80 percent to the uncertainty. Energy and CO2 Fluxes have been monitored from 1997 to 2007 using Bowen Ratio technique, and since spring of 2004 with eddy covariance.
Purpose: The goal of the Airborne Microwave Observatory of Subcanopy and Subsurface (AirMOSS) project is to provide a new NEE estimate for North America with reduced uncertainty by (1) providing high-resolution observations of RZSM over regions representative of the major North American biomes, (2) quantifying the impact of RZSM on the estimation of regional carbon fluxes, and (3) upscaling the reduced uncertainty estimates of regional carbon fluxes to the continental scale of North America.
LAND SURFACE > EROSION/SEDIMENTATION > EROSION
LAND SURFACE > LAND USE/LAND COVER > LAND COVER
LAND SURFACE > LANDSCAPE > REFORESTATION
LAND SURFACE > SOILS
LAND SURFACE > SURFACE RADIATIVE PROPERTIES > ALBEDO
LAND SURFACE > TOPOGRAPHY > LANDFORMS
LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
LAND SURFACE > TOPOGRAPHY > TOPOGRAPHIC EFFECTS
LAND SURFACE > TOPOGRAPHY > TOPOGRAPHICAL RELIEF
ISO Topic Category
Access Constraints None
Use Constraints There is no guarantee of warranty concerning the accuracy of these data. Users should be aware that temporal changes may have occurred since the data was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of their limitations. Acknowledgement of the originating agencies would be appreciated in products derived from these data. Any user who modifies the data set is obligated to describe the types of modifications they perform. User specifically agrees not to misrepresent the data set, nor to imply that changes made were approved or endorsed by the U.S. Geological Survey. Please refer to http://www.usgs.gov/privacy.html for the USGS disclaimer.
Data Set Progress
Distribution Media: Digital
Distribution Format: Download
Fees: This non-refundable fee is $30 per scene/frame.
Role: DIF AUTHOR
Email: lta at usgs.gov
City: Sioux Falls
Province or State: SD
Postal Code: 57198
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2013-11-01
Last DIF Revision Date: 2013-11-05